aircraft maintenance technician - a&p mechanic

data engineer

software engineer

aws data engineer

blockchain - lead security engineer Jobs in Seattle

blockchain - lead security engineer

full stack software engineer Jobs in Seattle

full stack software engineer

backend engineer

Apple

<div>Do you want to play a part in the next revolution in Foundation Models? Contribute to model hillclimbing for Apple Intelligence features that leverage Apple Foundation Models, and work with the people who built the intelligent products that helps millions of people get things done - just by asking or typing? 
 
The vision for the AI/ML FM Data organization is to improve Foundation Models by leveraging data from a variety of sources: crawl, license, vendor and internal crowd-sourcing. As a Sr Software Engineering on the team, you will drive backend innovations, identify key opportunity areas where data can play a crucial role and experiment with various data augmentation strategies to improve model training efficiency and performance.. 
 
Description 
 
We are looking for people with a track record in building scalable pipelines and services. Join us, and impact hundreds of millions of customers across billions of their interactions with foundation model powered Apple Intelligence features, that are available on iPhone, iPad, HomePod, Mac, Watch, CarPlay, and tv across more than 30 languages! 
 
As a Sr Backend Software engineer, you will be responsible for the following areas. 
 
<ul><li>Training data pipeline development. Convert raw data into format acceptable by training jobs on GCP and AWS. Leverage internal and open-sourced training modules.</li></ul> 
<ul><li>Large scale inferences: Leverage internal and open-sourced inference stack to generate inferences with fine-tuned LLMs on massive amounts of data, for pre-train and post-training</li></ul> 
<ul><li>Data processing and data filtering: Have the ability to efficiently process and filter very large amounts of data, often times messy.</li></ul> 
<ul><li>Scalable web services backend and APIs to support data access and data inspection tools</li></ul> 

Preferred Qualifications 
 
Familiarity with streaming-processing (Kafka). Familiarity with a variety of build tools (Jenkins, Maven, Docker, Gradle). 
 
Experience providing architecture and design guidance. 
 
A good communicator with clear and concise, active listening and empathy skills. 
 
Are self-motivated and curious. Strive to continually learn on the job. 
 
Have demonstrated creative and critical thinking with an innate drive to improve how things work. Have a high tolerance for ambiguity. 
 
Minimum Qualifications 
 
BS in Computer Science or Equivalent. 
 
10+ years of programming experience in Python. Extensive experiences in concurrency and parallelism, functional programming, decorators. Familiarity in other programming languages (Java/GoLang/Rust/Swift). 
 
Proficient in REST API, Redis, VectorDB or other large scale data storage systems. 
 
Solid foundational programming skills (algorithms, data structures, OOP, etc). 
 
Experience designing, writing, reviewing, testing and delivering software for applications and systems at scale. 
 
Apple is an equal opportunity employer that is committed to inclusion and diversity. We seek to promote equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics. Learn more about your EEO rights as an applicant . 
 
Pay &amp; Benefits 
 
At Apple, base pay is one part of our total compensation package and is determined within a range. This provides the opportunity to progress as you grow and develop within a role. The base pay range for this role is between $139,500 and $258,100, and your base pay will depend on your skills, qualifications, experience, and location. 
 
Apple employees also have the opportunity to become an Apple shareholder through participation in Apple's discretionary employee stock programs. Apple employees are eligible for discretionary restricted stock unit awards, and can purchase Apple stock at a discount if voluntarily participating in Apple's Employee Stock Purchase Plan. You'll also receive benefits including: Comprehensive medical and dental coverage, retirement benefits, a range of discounted products and free services, and for formal education related to advancing your career at Apple, reimbursement for certain educational expenses - including tuition. Additionally, this role might be eligible for discretionary bonuses or commission payments as well as relocation. Learn more about Apple Benefits. 
 
Note: Apple benefit, compensation and employee stock programs are subject to eligibility requirements and other terms of the applicable plan or program.</div>

AIML - Sr Backend Engineer, Data and ML Innovation

RAVENNA

<div><h1 class="jobSectionHeader">About the Role</h1>
At Ravenna, we are looking for a Senior Full Stack Engineer with a strong track record of building and operating production systems. You will help design, build, and evolve the core platform that powers our product.
This role requires strong engineering fundamentals and the ability to work across the stack. You will build backend services, design APIs, implement product features, and contribute to the architecture of the overall system. We care deeply about maintainable code, reliable systems, and thoughtful engineering decisions.
You will work closely with the founders, design, and other engineers to ship high quality product experiences while helping shape the long term architecture of the platform. Engineers on our team take ownership of the systems they build and think carefully about performance, reliability, and scalability.
If you enjoy solving complex technical problems, building clean systems, and shipping product quickly, we would love to talk.<h1 class="jobSectionHeader">
Responsibilities</h1><h3 class="jobSectionHeader">
Design and build production systems</h3>
Architect and implement core platform functionality across both frontend and backend systems. Design APIs, backend services, and data models that support the long term evolution of the product.<h3 class="jobSectionHeader">
Full stack product development</h3>
Build product features using NextJS, React, and Typescript on the frontend and Python with FastAPI on the backend. Take features from idea through implementation, launch, and iteration based on real user feedback.<h3 class="jobSectionHeader">
Backend services and APIs</h3>
Design and maintain backend services that power the Ravenna platform. Focus on reliability, performance, and maintainability as the system grows.<h3 class="jobSectionHeader">
System architecture and technical direction</h3>
Contribute to the architecture of the platform and help make decisions about system design, infrastructure, and development practices.<h3 class="jobSectionHeader">
Performance and reliability</h3>
Monitor and improve system performance across the stack. Build systems that are observable, debuggable, and reliable in production environments.<h3 class="jobSectionHeader">
Code quality and engineering standards</h3>
Write clean, well structured, well tested code. Participate in code reviews and contribute to engineering practices that keep the codebase healthy and maintainable.<h3 class="jobSectionHeader">
Collaboration and product ownership</h3>
Work closely with product and design to translate ideas into high quality features. Take ownership of systems and ensure they behave well in production.<h1 class="jobSectionHeader">
About You</h1><h3 class="jobSectionHeader">
Strong engineering fundamentals</h3>
You are a strong software engineer first. You have at least five years of experience building production systems and have developed a strong intuition for designing reliable, maintainable software.
You think carefully about architecture, data modeling, testing, observability, and operational reliability.<h3 class="jobSectionHeader">
Full stack experience</h3>
You are comfortable working across the stack and have experience building both frontend and backend systems. You have strong experience with modern web technologies such as React, NextJS, and Typescript, as well as backend frameworks such as Python and FastAPI.<h3 class="jobSectionHeader">
Backend and system design experience</h3>
You have experience designing APIs, backend services, and data models that support complex product functionality. You understand how to structure systems so they remain maintainable as they grow.<h3 class="jobSectionHeader">
Production ownership</h3>
You care about how systems behave in production. You think about monitoring, logging, debugging, and reliability when designing and building software.<h3 class="jobSectionHeader">
Performance awareness</h3>
You understand how performance affects user experience and system reliability. You have experience diagnosing performance issues and improving system efficiency.<h3 class="jobSectionHeader">
Product mindset</h3>
You enjoy building products and care about delivering features that create real value for users. You are comfortable working in environments where engineers collaborate closely with product and design.<h3 class="jobSectionHeader">
Curiosity and continuous improvement</h3>
You stay current with modern engineering tools and practices and enjoy improving systems, processes, and the developer experience.<h2 class="jobSectionHeader">
Technologies We Use</h2><ul><li>
NextJS</li><li>
React</li><li>
Typescript</li><li>
Python</li><li>
FastAPI</li><li>
TailwindCSS</li><li>
Modern monorepo tooling</li></ul>
Experience with these technologies is helpful, but strong engineering ability and system design skills matter most.<h1 class="jobSectionHeader">
Benefits</h1><h3 class="jobSectionHeader"> 

Competitive Salary</h3><ul><li>
We believe great people should be compensated well. While we are an early stage company, we offer competitive salaries and aim to pay top of market for exceptional talent.</li><li>
We are building an ambitious company and know that attracting great people requires strong compensation.</li></ul><h3 class="jobSectionHeader">
Meaningful Equity</h3><ul><li>
We hire people who want to help build Ravenna from the ground up. Equity ensures that when the company succeeds, the people who helped build it share in that success.</li><li>
Early team members have the opportunity to make a real impact on both the product and the future of the company.</li></ul><h3 class="jobSectionHeader">
Choose Your Setup</h3><ul><li>
Great work requires great tools. At Ravenna you can choose the hardware and setup that helps you do your best work.</li><li>
Most of the team uses high performance Mac laptops, but you have the flexibility to select the tools and environment that fit your workflow.</li></ul><h3 class="jobSectionHeader">
Flexible Time Off</h3><ul><li>
Doing great work requires time to recharge. We offer flexible paid time off so you can take the time you need to rest and stay at your best.</li><li>
We trust our team to manage their time responsibly while delivering meaningful results.</li></ul>
Compensation Range: $160K - $200K</div>

Sr Fullstack Engineer

Pinterest

<div>
 
 About Pinterest
 
 
 
 Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we&rsquo;re on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product.
 
 
 Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other&rsquo;s unique experiences and embrace the flexibility to do your best work. Creating a career you love? It&rsquo;s Possible.
 
 
 At Pinterest, AI isn't just a feature, it's a powerful partner that augments our creativity and amplifies our impact, and we&rsquo;re looking for candidates who are excited to be a part of that. To get a complete picture of your experience and abilities, we&rsquo;ll explore your foundational skills and how you collaborate with AI.
 
 
 Through our interview process, what matters most is that you can always explain your approach, showing us not just what you know, but how you think. You can read more about our AI interview philosophy and how we use AI in our recruiting process here.
 
 
 We are looking for inquisitive, well-rounded Backend engineers to join our Core and Monetization engineering teams. Working closely with product managers, designers, and backend engineers, you&rsquo;ll play an important role in enabling the newest technologies and experiences. You will build robust frameworks &amp; features. You will empower both developers and Pinners alike. You&rsquo;ll have the opportunity to find creative solutions to thought-provoking problems. Even better, because we covet the kind of courageous thinking that&rsquo;s required in order for big bets and smart risks to pay off, you&rsquo;ll be invited to create and drive new initiatives, seeing them from inception through to technical design, implementation, and release.
 
 
 
 What You&rsquo;ll Do
 
 
 
 <ul>
 <li>
 Build out the backend for Pinner-facing features to power the future of inspiration on Pinterest
 </li>
 <li>
 Contribute to and lead each step of the product development process, from ideation to implementation to release; from rapidly prototyping, running A/B tests, to architecting and building solutions that can scale to support millions of users
 </li>
 <li>
 Partner with design, product, and backend teams to build end-to-end functionality
 </li>
 <li>
 Put on your Pinner hat to suggest new product ideas and features
 </li>
 <li>
 Employ automated testing to build features with a high degree of technical quality, taking responsibility for the components and features you develop
 </li>
 <li>
 Grow as an engineer by working with world-class peers on varied and high impact projects
 </li>
 <li>
 Leverage AI to seek faster execution (i.e. draft, prototype, outline) and explore alternative options (i.e. iterate, compare approaches)
 </li>
 <li>
 Leverage AI to synthesize information (summarize, distill themes) and automate repeatable tasks (documentation, reporting, QA checks)
 
 
 
 </li>
 </ul>
 
 What We&rsquo;re Looking For
 
 
 
 <ul>
 <li>
 2+ years of industry backend development experience, building consumer or business facing products
 </li>
 <li>
 Proficiency in common backend tech stacks for RESTful API, storage, caching and data processing
 </li>
 <li>
 Experience in following best practices in writing reliable and maintainable code that may be used by many other engineers
 </li>
 <li>
 Ability to keep up-to-date with new technologies to understand what should be incorporated
 </li>
 <li>
 Strong collaboration and communication skills
 </li>
 <li>
 Demonstrated ability to use AI to improve speed and quality in your day-to-day workflow for relevant outputs.
 </li>
 <li>
 Strong track record of critical evaluation and verification of AI-assisted work (e.g., testing, source-checking, data validation, peer review).
 </li>
 <li>
 High integrity and ownership: you protect sensitive data, avoid over-reliance on AI, and remain accountable for final decisions and deliverables.
 
 
 
 </li>
 </ul>
 This position is not eligible for relocation assistance.
 
 
 At Pinterest we believe the workplace should be equitable, inclusive, and inspiring for every employee. In an effort to provide greater transparency, we are sharing the base salary range for this position. The position is also eligible for equity. Final salary is based on a number of factors including location, travel, relevant prior experience, or particular skills and expertise.
 
 
 
 Information regarding the culture at Pinterest and benefits available for this position can be found here.
 
 
 
 US based applicants only
 
 
 $118,938&mdash;$244,872 USD
 
 
 
 Our Commitment To Inclusion
 
 
 
 Pinterest is an equal opportunity employer and makes employment decisions on the basis of merit. We want to have the best qualified people in every job. All qualified applicants will receive consideration for employment without regard to race, color, ancestry, national origin, religion or religious creed, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender, gender identity, gender expression, age, marital status, status as a protected veteran, physical or mental disability, medical condition, genetic information or characteristics (or those of a family member) or any other consideration made unlawful by applicable federal, state or local laws. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. If you require a medical or religious accommodation during the job application process, please complete this form for support.
 
 
</div>

Software Engineer II, Backend

BuyWander

<div>Description:
<h1 class="jobSectionHeader">Senior Software Engineer (Search &amp; Personalization)</h1>
Location: Seattle, WA Type: Full-Time | Engineering<h3 class="jobSectionHeader">
ABOUT BUYWANDER</h3>
BuyWander is rebuilding the $850B retail returns industry. We take chaotic truckloads of returned goods and transform them into a fast, fun, treasure-hunt shopping experience powered by AI, real-time auctions, and local pickup.
We&rsquo;re not just building a marketplace. We&rsquo;re building a daily habit.<h3 class="jobSectionHeader"> 
THE ROLE</h3>
We are looking for a highly product-minded Senior Software Engineer to own our Search and Personalization experience.
With the rapid advancement of AI coding agents (like Claude Code and Cursor), the way we build across the stack has completely changed. We aren't hiring you to spend your days writing boilerplate UI components. We are hiring you for your architectural brain and product sense.
Your mandate is to build the discovery engine that keeps our users addicted to the &quot;treasure hunt.&quot; You will partner with our Data &amp; AI team to take raw recommendation models and turn them into lightning-fast, highly personalized consumer experiences.<h3 class="jobSectionHeader"> 
WHAT YOU&rsquo;LL OWN</h3>
1. The Discovery &amp; Personalization Engine<ul><li>
Design and implement the architecture for our &quot;For You&quot; feeds.</li><li>
Blend rules-based logic with ML-driven recommendations to ensure the right weird, unique, or high-value item hits the exact right bidder at the right time.</li></ul>
2. Search Optimization<ul><li>
Own our core search infrastructure (Elastic Cloud / Pinecone).</li><li>
Implement hybrid search (keyword + vector), tune ranking weights, and build typo-tolerance and synonym matching so our buyers always find what they are looking for.</li></ul>
3. Measuring Success &amp; Experimentation<ul><li>
You don't just ship features; you measure them. You will design the A/B testing framework for our search ranking changes.</li><li>
Track click-through rates (CTR), bid velocity, and conversion metrics to definitively prove your search tweaks are making the company money.</li></ul>
4. AI-Assisted Product Development<ul><li>
Use modern AI coding tools to rapidly wire your backend search APIs into our Vue/Nuxt frontend.</li><li>
Focus your deep thinking on system design, database queries, and user flows, while leveraging AI agents to accelerate UI execution.</li></ul><h3 class="jobSectionHeader">
WHY THIS ROLE IS DIFFERENT</h3>
At most companies, you are handed a Jira ticket and told exactly what to build. Here, you are handed a business problem: &quot;Our bidders are having trouble finding niche electronics in our chaotic inventory&mdash;fix it.&quot;
You will have the autonomy to design the search logic, test the algorithms, and ship the product experience that solves that problem. If you love building systems that directly drive user addiction and marketplace revenue, let's talk.
Benefits<ul><li>
Competitive Salary and Performance-based Bonuses
</li><li>Meaningful equity in a company attacking a massive market, for a brand that can become nationally recognized</li><li>
Health, Vision &amp; Dental Insurance
</li><li>Unlimited PTO
</li><li>Annual Company Offsites
</li><li>401K</li></ul>
Requirements:<h3 class="jobSectionHeader"> 
</h3><h3 class="jobSectionHeader">
WHAT YOU BRING</h3><ul><li>
The Tech Stack: Deep backend proficiency (we use C#/Python/FastAPI) and a solid understanding of modern frontend frameworks (we use Vue/Nuxt/Vercel).</li><li>
Search Expertise: Proven experience tuning search engines (Elasticsearch, Algolia, or OpenSearch) and familiarity with modern Vector databases (Pinecone).</li><li>
Product Sense: You think in terms of user psychology and metrics. You understand concepts like collaborative filtering, session-based recommendations, and ranking algorithms.</li><li>
The Modern Workflow: You are highly proficient in using AI developer tools (Copilot, Cursor, Claude) to multiply your output.</li></ul>
BuyWander is an Equal Opportunity Employer. We make employment decisions based on qualifications, skills, merit, and business needs. We believe a range of skills, perspectives, and experiences strengthens our team and supports better outcomes for our employees and customers.</div>

Senior Software Engineer (Search & Personalization)

Amazon Web Services

<div><h2 class="jobSectionHeader">DESCRIPTION</h2><div>
Help shape new Generative AIUX products for AWS customers
 
 
Our team builds Generative AIUX products that transform the way customers design. We are focused on the future of design driven development and democratizing innovation for all builders. We deliver a shared platform across multiple products, and we work on AI-powered tools that use Design Systems to build interfaces, and accelerate design, development, and validation workflows. The two products you will be working on are Venue and project Arena. Venue is an AI powered internal prototyping tool that helps AWS builders create new features using the AWS Cloudscape Design system. Arena is an external version of the tool that helps scale this offering to all of Amazon and to external customers with a focus on 0-1 rapid prototyping.
 
 
We are seeking a talented and passionate generative/agentic Senior Machine Learning Engineer to join our team and lead the development of cutting-edge AIUX solutions. AIUX is the intersection of Artificial Intelligence and User Experience. AIUX focuses on making sure the user experience is bar raising for a human and simultaneously works well with agents. This includes designing for trust, transparency (letting users know they are interacting with AI), and providing control (allowing users to edit or undo AI actions). It enhances productivity, automates repetitive tasks, and creates more engaging, intuitive, and efficient user experiences.
 
 
The ideal candidate will bring expertise in generative and agentic AI and data analysis to create intelligent and transformative AI applications.
 
 
In this role, you will work closely with our product, design, and backend teams to build and enhance our generative AI platform. You will have the opportunity to influence the direction of our product and contribute to a culture of innovation and excellence.
 
 
Our team is dedicated to supporting new team members. It has a broad mix of experience levels and Amazon tenures, and we&rsquo;re building an environment that celebrates knowledge sharing and mentorship. We care about your career growth. We try to assign projects and tasks based on what will help each team member develop into a better-rounded engineer and enable them to take on more complex tasks in the future. 
 
Key job responsibilities 
<ul><li>Backend Integration (AI-Focused): Integrate with systems to manage asynchronous data flows from LLMs (Large Language Models) and other AI services.
</li><li>Optimize Performance: Ensure maximum speed and responsiveness of AI-driven interfaces, particularly when processing large datasets or real-time streaming output.
</li><li>Design and own end-to-end systems, spanning backend services, APIs, data storage, and frontend integration.
</li><li>Build and evolve GenAI-powered services that support design generation, validation, and automation workflows.
</li><li>Contribute to long-term technical vision and architecture decisions.
</li><li>Balance short-term delivery with scalable, maintainable system design.
</li><li>Work with internal teams to understand needs and translate them into robust solutions.
</li><li>Contribute to hiring, mentor junior engineers, and raise the overall engineering bar.
</li></ul></div><h2 class="jobSectionHeader">BASIC QUALIFICATIONS</h2><ul><li>5+ years of non-internship professional software development experience</li><li>5+ years of programming with at least one software programming language experience</li><li>5+ years of leading design or architecture (design patterns, reliability and scaling) of new and existing systems experience</li><li>Experience as a mentor, tech lead or leading an engineering team</li><li>Experience with emerging generative and agentic technologies</li><li>Experience in machine learning and data science</li></ul><h2 class="jobSectionHeader">
PREFERRED QUALIFICATIONS</h2><ul><li>Bachelor's degree in computer science or equivalent</li><li>Experience with full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations</li><li>Experience with agentic orchestration</li><li>Prior experience working with AWS applications, a plus</li><li>Experience with Bedrock, Kiro, or Claude a plus</li></ul> 
Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status. 
 
Los Angeles County applicants: Job duties for this position include: work safely and cooperatively with other employees, supervisors, and staff; adhere to standards of excellence despite stressful conditions; communicate effectively and respectfully with employees, supervisors, and staff to ensure exceptional customer service; and follow all federal, state, and local laws and Company policies. Criminal history may have a direct, adverse, and negative relationship with some of the material job duties of this position. These include the duties and responsibilities listed above, as well as the abilities to adhere to company policies, exercise sound judgment, effectively manage stress and work safely and respectfully with others, exhibit trustworthiness and professionalism, and safeguard business operations and the Company&rsquo;s reputation. Pursuant to the Los Angeles County Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records. 
 
Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you&rsquo;re applying in isn&rsquo;t listed, please contact your Recruiting Partner. 
The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life &amp; AD&amp;D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave. Learn more about our benefits at https://amazon.jobs/en/benefits. 
USA, CA, East Palo Alto - 193,300.00 - 261,500.00 USD annually 
USA, CA, Santa Clara - 193,300.00 - 261,500.00 USD annually 
USA, WA, Seattle - 168,100.00 - 227,400.00 USD annually</div>

Senior Machine Learning Engineer, GenAIUX

Riot Games

<div>Riot engineers bring deep knowledge of specific technical areas but also value the opportunity to work in a variety of broader domains. As Software Engineers, we work with both new and current technology, creating innovative solutions to overcome high-volume obstacles and to deliver player value.

Riot builds genre-defining games and people love to play them, but for some players, their experience can be diminished by disruptive social interactions. The Behavior Evaluation and Moderation (BEAM) team, part of the Social Initiative on Player Platform, works to foster positive player-to-player experiences and reduce negative behavior, empowering players to have the experience they want. We also enhance pro-social spaces to create more engaging and welcoming environments. As a Senior Software Engineer on the Behavior Evaluation and Moderation (BEAM) team, you'll collaborate with engineers, game designers, product managers, and data scientists to develop backend services and solutions that support Riot's current and future games in a scalable way. You'll contribute to the implementation of features, following established designs, and work closely with teammates to ensure quality and maintainability. You'll also participate in on-call rotations to support live services and help maintain high availability for our systems. You'll embrace the team's values by focusing on high-impact work, using data to inform decisions, and collaborating across disciplines to create the best possible experiences for players. You'll help improve team processes, write reliable code, and continue to grow your skills with guidance from senior engineers.
<h2 class="jobSectionHeader">
Responsibilities:</h2>
<ul><li>Implement backend service features for evaluating social inputs (text, voice), determining behavioral progression and outcomes, and integrating moderation workflows with game teams.</li>
<li>Create technical designs and collaborate with senior engineers to ensure features are scalable, maintainable, and resilient.</li>
<li>Write unit, functional, and integration tests to validate code quality and adhere to engineering best practices.</li>
<li>Partner with product managers, designers, and data scientists to understand requirements and deliver features aligned with player experience goals.</li>
<li>Participate in code reviews, incorporating feedback and learning from others.</li>
<li>Contribute to process improvements within the team's technical and workflow systems.</li>
<li>Participate in the team's on-call rotation to help troubleshoot and resolve live incidents, with backup support from senior engineers.</li>
</ul><h2 class="jobSectionHeader">Required Qualifications:</h2>
<ul><li>Basic knowledge of cloud services (AWS, GCP, etc.).</li>
<li>3-5 years of industry experience (or advanced degree with equivalent skills).</li>
<li>Proficiency in Java and familiarity with relational and/or NoSQL databases.</li>
<li>Experience developing backend services and integrating with APIs or distributed systems.</li>
<li>Understanding of the software development lifecycle, including testing and deployment.</li>
<li>Collaborative mindset and willingness to seek guidance when facing unfamiliar challenges.</li>
</ul><h2 class="jobSectionHeader">Desired Qualifications:</h2>
<ul><li>Familiarity with data processing or streaming technologies (Kafka, Kinesis, etc.).</li>
<li>Familiarity with machine learning concepts and deploying AI models.</li>
<li>Proficiency in Python and common ML libraries such as: scikit-learn, TensorFlow, PyTorch, XGBoost</li>
</ul>
For this role, you'll find success through craft expertise, a collaborative spirit, and decision-making that prioritizes your fellow Rioters, who are the customers of your work. Being a dedicated fan of games is not necessary for this position! 

<h2 class="jobSectionHeader">
Our Perks:</h2>

Riot focuses on work/life balance, shown by our open paid time off policy and other perks such as flexible work schedules. We offer medical, dental, and life insurance, parental leave for you, your spouse/domestic partner, and children, and a 401k with company match. Check out our benefits pages for more information.

At Riot Games, we put players first. That mission drives every decision in our quest to create games and experiences that make it better to be a player. Whether you're working directly on a new player-facing experience or you're supporting the company as a whole, everyone at Riot is part of our mission. And just like in our games, we're better when we work together. Our goal is to create collaborative teams where you are empowered to bring your unique perspective everyday. If that sounds like the kind of place you want to work, we're looking forward to your application. 


It's our policy to provide equal employment opportunity for all applicants and members of Riot Games, Inc. Riot Games makes reasonable accommodations for handicapped and disabled Rioters and does not unlawfully discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity or expression, national origin, age, handicap, veteran status, marital status, criminal history, or any other category protected by applicable federal and state law. We consider for employment all qualified applicants, including those with criminal histories, in a manner consistent with applicable federal, state and local law, including the California Fair Chance Act, the City of Los Angeles Fair Chance Initiative for Hiring Ordinance, the Los Angeles County Fair Chance Ordinance for Employers, the San Francisco Fair Chance Ordinance, and the Washington Fair Chance Act.

Per the Los Angeles County Fair Chance Ordinance, the following core duties may create a basis for disqualifying candidates with relevant criminal histories:
<ul>
<li>Safeguarding confidential and sensitive Company data
</li><li>Communication with others, including Rioters and third parties such as vendors, and/or players, including minors</li>
<li>Accessing Company assets, secure digital systems, and networks</li>
<li>Ensuring a safe interactive environment for players and other Rioters</li>
</ul>
These duties are directly related to essential operations, safety, trust, and compliance obligations within our organization. Please note that job duties may evolve based on business needs and additional responsibilities may be assigned as necessary to maintain operational efficiency and security.</div>

Senior Software Engineer - Publishing Platform, Social: Behavior Evaluation and Moderation

Headspace

<div>About the Principal Software Engineer, Backend at Headspace:

At Headspace, you'll be working on a highly impactful consumer facing product that impacts millions of members globally. Our mission is to transform mental healthcare to improve the health and happiness of people all over the world, so join us to make that happen! As a Principal Engineer, you'll play a key role in shaping the technical foundation of our platform as we scale to serve millions of users. You will help us bring new features to life to meet our mission, while also helping push our platform to newer technologies as we embrace the cutting edge. A big goal needs talented people, so come join us and give your day job a sense of purpose!

What you will do:
<ul>
<li>Lead architecture and design of high-scale, low-latency applications that are core to Headspace's business and member experience.</li>
<li>Define long-term technical strategies and implementation paths for complex systems.</li>
<li>Own and drive engineering excellence across multiple domains or squads. Write high-quality, performant, and testable code &mdash; primarily in Typescript and Python &mdash; and set the standard for craftsmanship across the organization.</li>
<li>Shape product and platform evolution by partnering with PMs, EMs, and stakeholders across Product, Data, Security, and Infrastructure to align technical vision with business goals.</li>
<li>Author technical specs and RFCs that guide not only your product pillar, but the entire company through critical design decisions.</li>
<li>Take end-to-end ownership of features, from ideation and architecture to monitoring in production.</li>
<li>Mentor and elevate engineers across levels, helping them scale their impact while promoting inclusive and empowering team dynamics.</li>
<li>Drive operational excellence by developing resilient systems, implementing observability, and guiding production support practices. Lead efforts to improve system reliability, developer velocity, and cost efficiency.</li>
<li>Act as a thought leader and multiplier, identifying systemic issues and architecting platform-level solutions with reusability and extensibility in mind.</li>
<li>Provide a point of escalation for engineering teams facing complex technical challenges.</li>
<li>Define coding standards, development processes, and best practices to ensure high-quality software development across engineering.</li>
<li>Stay abreast of emerging technologies, industry trends, and best practices, evaluating their potential application and driving innovation within the software engineering and tech team broadly.</li>
</ul>
What you will bring:

Required Skills:
<ul>
<li>8+ years of professional software engineering experience, with a proven track record of building and scaling production-grade APIs and distributed backend systems.</li>
<li>Deep expertise in system design and software architecture, with the ability to decompose complex problems into scalable, maintainable components.</li>
<li>Extensive experience with Node.js, TypeScript, and Python especially in the context of building high-scale backend services.</li>
<li>Experience leading the definition, design, and delivery of complex software features in asynchronous and distributed team environments.</li>
<li>Strong hands-on experience with unit, integration, and end-to-end testing, along with building and maintaining robust CI/CD pipelines for reliable, automated delivery.</li>
<li>Exceptional communication and collaboration skills&mdash;you can influence technical direction, align stakeholders, and clearly articulate trade-offs and decisions to both technical and non-technical audiences.</li>
<li>Experience mentoring engineers and leading cross-functional technical initiatives across teams.</li>
<li>Ownership mindset: you thrive in ambiguity, consistently raise the bar, and take accountability for outcomes across teams.</li>
<li>Comfortable making strategic technical decisions and coaching others through uncertainty, with a pragmatic eye on long-term impact and technical debt.</li>
<li>Ability to balance technical excellence with product and business priorities, making decisions aligned with company goals.</li>
</ul>
Preferred Skills:
<ul>
<li>BS/MS degree in Computer Science or related field, or equivalent practical experience.</li>
<li>Demonstrated success designing and maintaining high-availability systems, with strong observability practices (metrics, logging, alerting).</li>
<li>Deep knowledge of database design, data modeling, and query performance optimization across both relational and NoSQL systems.</li>
<li>Familiarity with cloud-native architectures and services (e.g., AWS, GCP, Kubernetes) and modern DevOps practices.</li>
<li>Track record of improving engineering velocity and reducing tech debt at scale.</li>
<li>Strong debugging skills and comfort working within complex, distributed systems.</li>
<li>Demonstrated ability to drive build vs. buy vs. refactor decisions with long-term implications in mind.</li>
<li>Experience designing or maintaining Server-Driven UI (SDUI) systems to enable dynamic, schema-based UI rendering across web and mobile clients.</li>
</ul>
Location: We are currently hiring this role remotely unless SF based. Candidates must permanently reside in the US full-time.

For candidates with a primary residence in the greater SF area, this role will follow our hybrid model. You'll work 3 days per week from our office, allowing for impactful in-office collaboration and connection, while enjoying the flexibility of remote work for the rest of the week. Your recruiter will share more details about our hybrid model. 

Pay &amp; Benefits:

The anticipated new hire base salary range for this full-time position is $162,000-$258,750 + equity + benefits.

Our salary ranges are based on the job, level, and location, and reflect the lowest to highest geographic markets where we are hiring for this role within the United States. Within this range, individual compensation is determined by a candidate's location as well as a range of factors including but not limited to: unique relevant experience, job-related skills, and education or training. 
Your recruiter will provide more details on the specific salary range for your location during the hiring process.

At Headspace, base salary is but one component of our Total Rewards package. We're proud of our robust package inclusive of: base salary, stock awards, comprehensive healthcare coverage, monthly wellness stipend, retirement savings match, lifetime Headspace membership, generous parental leave, and more. Additional details about our Total Rewards package will be provided during the recruitment process.

About Headspace

Headspace exists to provide every person access to lifelong mental health support. We combine evidence-based content, clinical care, and innovative technology to help millions of members around the world get support that's effective, personalized, and truly accessible whenever and wherever they need it.

At Headspace, our values aren't just what we believe, they're how we work, grow, and make an impact together. We live them daily: Make the Mission Matter, Iterate to Great, Own the Outcome, and Connect with Courage. These values shape our decisions, guide our collaborations, and define our culture. They're our shared commitment to building a more connected, human-centered team&mdash;one that's redefining how mental health care supports people today and for generations to come.

Why You'll Love Working Here:
<ul>
<li>A mission that matters&mdash;with impact you can see and feel</li>
<li>A culture that's collaborative, inclusive, and grounded in our values</li>
<li>The chance to shape what mental health care looks like next</li>
<li>Competitive pay and benefits that support your whole self</li>
</ul>
How we feel about Diversity, Equity, Inclusion and Belonging:

Headspace is committed to bringing together humans from different backgrounds and perspectives, providing employees with a safe and welcoming work environment free of discrimination and harassment. We strive to create a diverse &amp; inclusive environment where everyone can thrive, feel a sense of belonging, and do impactful work together.

As an equal opportunity employer, we prohibit any unlawful discrimination against a job applicant on the basis of their race, color, religion, gender, gender identity, gender expression, sexual orientation, national origin, family or parental status, disability*, age, veteran status, or any other status protected by the laws or regulations in the locations where we operate. We respect the laws enforced by the EEOC and are dedicated to going above and beyond in fostering diversity across our workplace.
<ul><li>Applicants with disabilities may be entitled to reasonable accommodation under the terms of the Americans with Disabilities Act and certain state or local laws. A reasonable accommodation is a change in the way things are normally done which will ensure an equal employment opportunity without imposing undue hardship on Headspace. Please inform our Talent team by filling out this form if you need any assistance completing any forms or to otherwise participate in the application or interview process.</li></ul>

Headspace participates in the E-Verify Program.

Privacy Statement

All member records are protected according to our Privacy Policy. Further, while employees of Headspace (formerly Ginger) cannot access Headspace products/services, they will be offered benefits according to the company's benefit plan. To ensure we are adhering to best practice and ethical guidelines in the field of mental health, we take care to avoid dual relationships. A dual relationship occurs when a mental health care provider has a second, significantly different relationship with their client in addition to the traditional client-therapist relationship&mdash;including, for example, a managerial relationship.
As such, Headspace requests that individuals who have received coaching or clinical services at Headspace wait until their care with Headspace is complete before applying for a position. If someone with a Headspace account is hired for a position, please note their account will be deactivated and they will not be able to use Headspace services for the duration of their employment.

Further, if Headspace cannot find a role that fails to resolve an ethical issue associated with a dual relationship, Headspace may need to take steps to ensure ethical obligations are being adhered to, including a delayed start date or a potential leave of absence. Such steps would be taken to protect both the former member, as well as any relevant individuals from their care team, from impairment, risk of exploitation, or harm.

For how how we will use the personal information you provide as part of the application process, please see: https://www.headspace.com/applicant-notice</div>

Principal Software Engineer, Backend

Explore 94+ Backend engineer in Seattle this May. Find roles across top companies and apply now to boost your career.