backend engineer - ai Jobs in San Francisco

backend engineer - ai

backend software engineer - b2b applications Jobs in San Francisco

backend software engineer - b2b applications

early software engineer Jobs in San Francisco

early software engineer

fullstack software engineer Jobs in San Francisco

fullstack software engineer

lead backend engineer Jobs in San Francisco

lead backend engineer

backend software engineer b2b applications

OpenAI

About the Team
 
OpenAI’s B2B organization builds and operates the products that bring our cutting-edge research to millions of companies and developers worldwide. We power the OpenAI API and the Enterprise products that empower people around the world to do their jobs better and more efficiently. Our teams span product engineering, backend infrastructure, and safety, working together to ensure that OpenAI’s technology is delivered with reliability, security, and a world-class user experience.
 
About the Role
 
We’re looking for backend engineers to design and scale the systems that drive our developer and enterprise-facing products. In this role, you’ll architect and maintain the services and infrastructure that power OpenAI applications—from large-scale distributed systems and databases to APIs and data pipelines. You’ll collaborate closely with product, research, and infrastructure teams to bring new AI capabilities to production while ensuring performance, safety, and compliance at global scale.
 
In this role, you will: 
Own the end-to-end development lifecycle for new platform capabilities and integrations with other systems
 
Collaborate closely with product, design and external customers to understand problems and implement effective solutions
 
Work with the research team to improve our next generation of models
 
Your background might look something like: 
7+ years of professional engineering experience (excluding internships) in relevant roles at tech and product-driven companies
 
Former founder, or early engineer at a startup who has built a product from scratch is a plus
 
Are proficient in one or more backend languages (e.g., Python, Go, Rust, Typescript or similar) and distributed systems concepts.
 
Enjoy building infrastructure that supports billions of requests and petabytes of data.
 
Care deeply about reliability, safety, and performance in production environments.
 
Interest in AI/ML (direct experience not required)
 
Proven ability to thrive in fast-growing, product-driven companies by effectively navigating loosely defined tasks and managing competing priorities or deadlines.
 
About OpenAI
 
OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artificial intelligence benefits all of humanity. We push the boundaries of the capabilities of AI systems and seek to safely deploy them to the world through our products. AI is an extremely powerful tool that must be created with safety and human needs at its core, and to achieve our mission, we must encompass and value the many different perspectives, voices, and experiences that form the full spectrum of humanity.
 
We are an equal opportunity employer, and we do not discriminate on the basis of race, religion, color, national origin, sex, sexual orientation, age, veteran status, disability, genetic information, or other applicable legally protected characteristic.
 
For additional information, please see
 
OpenAI’s Affirmative Action and Equal Employment Opportunity Policy Statement
 
.
 
Background checks for applicants will be administered in accordance with applicable law, and qualified applicants with arrest or conviction records will be considered for employment consistent with those laws, including the San Francisco Fair Chance Ordinance, the Los Angeles County Fair Chance Ordinance for Employers, and the California Fair Chance Act, for US-based candidates. For unincorporated Los Angeles County workers: we reasonably believe that criminal history may have a direct, adverse and negative relationship with the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: protect computer hardware entrusted to you from theft, loss or damage; return all computer hardware in your possession (including the data contained therein) upon termination of employment or end of assignment; and maintain the confidentiality of proprietary, confidential, and non-public information. In addition, job duties require access to secure and protected information technology systems and related data security obligations.
 
To notify OpenAI that you believe this job posting is non-compliant, please submit a report through
 
this form
 
. No response will be provided to inquiries unrelated to job posting compliance.
 
We are committed to providing reasonable accommodations to applicants with disabilities.
 
OpenAI Global Applicant Privacy Policy
 
At OpenAI, we believe artificial intelligence has the potential to help people solve immense global challenges, and we want the upside of AI to be widely shared. Join us in shaping the future of technology.
 
Compensation
 
$255K – $405K + Offers Equity

Backend Software Engineer - B2B Applications

anything

<div>Anything
Anything is the AI product engineer for the next wave of entrepreneurs.
 
 
It's an AI agent that turns English into apps. Everything you need make money on the internet built in - mobile, web, design, AI, backend, infra, payments.
 
 
Launched Aug 7th. https://x.com/anything 
Hit $5m rev and growing quickly 
Try it at anything.com
Role<h1 class="jobSectionHeader">
Who this role is for</h1>
This role is for an experienced product engineer who wants real ownership, real leverage, and real impact.
You have already shipped meaningful products and systems. You are comfortable taking responsibility for outcomes, not just execution. You care deeply about product quality, system design, and user experience, and you want your decisions to shape the direction of what gets built.
You thrive in environments with ambiguity. You are energized by loosely defined problems and take initiative to clarify goals, explore constraints, and drive toward strong solutions. You are trusted to make technical and product tradeoffs independently and to mentor others by example.
You enjoy working across the stack and across disciplines. You move fluidly between backend systems, frontend interfaces, and product decisions. You want to help define how a product is built, not just implement tickets.
This is not a role for someone who wants narrow scope or heavy process. It is for someone who wants to operate as a force multiplier.<h2 class="jobSectionHeader">
What you will do</h2>
You will own complex, high impact product work end to end, from early problem framing through production and iteration.
You will:<ul><li>
Lead the design and implementation of user facing features across frontend and backend using TypeScript, React, Tailwind, and Postgres</li><li>
Translate ambiguous product goals into clear technical plans and shipped outcomes</li><li>
Partner closely with product and design to shape roadmap decisions and execution strategy</li><li>
Talk directly with users to understand workflows, pain points, and opportunities</li><li> 
Drive fast iteration loops using feedback, data, and firsthand product usage</li><li>
Raise the quality bar through thoughtful system design, testing, and code review</li><li>
Identify and resolve structural issues that slow the team or degrade product quality</li><li>
Mentor junior engineers through pairing, feedback, and setting strong technical examples</li><li>
Contribute to a culture of ownership, clarity, and high standards</li></ul> 
You will be expected to move fast while thinking holistically, choosing solutions that scale with the product and team rather than optimizing for short term convenience.
How you will be successful
Your success will be measured by:<ul><li>
End to end ownership 
You take responsibility for important product areas, drive decisions, and reliably deliver high quality features without heavy oversight.</li><li> 
Technical and product leadership 
You make sound architectural and product tradeoffs, improve system quality over time, and elevate the thinking of those around you.</li><li> 
Shipped product impact 
Your work measurably improves user experience, product depth, reliability, and development velocity.</li></ul><h1 class="jobSectionHeader"> 
Required background</h1>
Strong candidates typically have:<ul><li>
Several years of experience building and shipping production software</li><li>
A strong technical foundation from a CS program or equivalent real world experience</li><li>
Experience owning significant product or system areas end to end</li><li>
Deep comfort with TypeScript and modern frontend development</li><li>
Solid backend fundamentals including data modeling, APIs, and system design</li><li>
Strong debugging skills and the ability to reason through complex systems</li><li>
Clear written and verbal communication</li><li>
A demonstrated ability to learn new domains quickly and apply them in practice</li><li>
Experience operating in fast paced environments with high ownership</li></ul><h1 class="jobSectionHeader"> 
Nice to have</h1><ul><li>
Experience at an early stage or high growth startup</li><li>
Experience collaborating deeply with design and product partners</li><li>
A track record of mentoring or leading other engineers</li><li>
Personal projects or writing that demonstrate taste and initiative</li><li>
Interests beyond engineering such as design, writing, economics, or philosophy</li></ul><h1 class="jobSectionHeader"> 
Why this role matters</h1>
We are building ambitious products at the intersection of AI and modern software. Doing that well requires senior product engineers who can think clearly, learn continuously, and ship with conviction.
In this role, you will have outsized influence on the product, the codebase, and the team. You will work on problems that matter, help shape how we build, and play a key role in defining the future of the company.
In all roles 
We look for:
Intense. Ship fast. Cycles are hours, not weeks. Hard to outwork.
Ownership. Grab the #1 priority and relentless to deliver.
Fearlessness. Risk on. Do the unknown / uncomfortable. Say &quot;good&quot; to bad news.
Taste. Obsess over quality. Know what &ldquo;great&rdquo; looks like. No slop.
Play. Curiosity, joy, and energy.
Sound like you?
Come do the most meaningful work of your career. 
 
Applying
Submit here and we'll reach out if it's a fit. 
 
Note: we get 100s of low quality AI generated applications daily. We do want to meet you if you're excellent and really care.
 
 
If you want to stand out, after you submit, send resume + a short note to marcus@anything.com w/ subject line &quot;[Role] | Your Name&quot; (bullets work!)
Compensation Range: $125K - $200K</div>

Product Engineer

Collective Health

<div><div>At Collective Health, we're transforming how employers and their people engage with their health benefits by seamlessly integrating cutting-edge technology, compassionate service, and world-class user experience design.</div>
The Provider Servicing team is developing integrations with our partners to provide a better experience for our Providers. Ensuring providers receive accurate information they need to provide care and process claims. Information integrity and accuracy is critical and so is providing this information in a secure and timely manner. We are leveraging proven technologies to accomplish this. Collective Health is building modern health management systems, these integrations are a critical part of that.

As a backend engineer, you will be responsible for the ownership and management of Provider Servicing systems. This includes developing new AI-powered solutions and providing support for existing microservices-based applications and integration platforms. Opportunities for growth involve leading an engineering team, gaining exposure to new technology adaptations, and contributing to the company's evolution into a future healthcare platform.
<h3 class="jobSectionHeader">
What you'll do:</h3>
<ul><li>Design and develop scalable, secure, and configurable platform services for the Provider Servicing Team.</li>
<li>Lead backend development and support of services across backend (Java/Spring Cloud) and integration platforms (Mulesoft and others)</li>
<li>Utilize working knowledge of AI-powered developer tools (e.g., Copilot, Cursor) and actively contribute to AI adoption in development and operational aspects.</li>
<li>Build and enrich APIs and data services to integrate with partners.</li>
<li>Collaborate with product managers, operations analysts, customer advocates in building solutions that helps Providers integrate with our platform.</li>
<li>Understand architectural decisions and actively drive reusable patterns for cloud-native, AI-enabled backend systems.</li>
<li>Lead and mentor other engineers in the team and help them succeed.</li>
<li>Actively work with the operations and customer advocates to create efficient processes through automations to improve SLAs.</li>
</ul><h3 class="jobSectionHeader">To be successful in this role, you'll need:</h3>
<ul><li>Experience: 10+ years as a Backend Engineer</li>
<li>Backend Engineering: Strong proficiency in Java &amp; Spring Cloud, with a deep understanding of microservices architecture and Integration platforms</li>
<li>AI Tools: Regular use of AI-enhanced development tools (e.g., GitHub Copilot, Cursor, WindSurf).</li>
<li>Cloud: Extensive experience with Cloud Technologies (AWS/GCP preferred).</li>
<li>Data: Hands-on experience in data architecture, SQL/PostgreSQL, and developing data-intensive services.</li>
<li>Systems Development: Prior experience in building, launching, and maintaining complex systems.</li>
<li>Team Collaboration: Work closely with cross-functional teams, including developers, and product managers, to gather requirements and ensure solutions meet business needs.</li>
<li>Communication: Excellent communication skills across all levels and teams.</li>
</ul><h3 class="jobSectionHeader">Pay Transparency Statement</h3>

This is a hybrid position based out of one of our offices: San Francisco, CA, Plano, TX, or Lehi, UT. Hybrid employees are expected to be in the office two days per week.#LI-hybrid

The actual pay rate offered within the range will depend on factors including geographic location, qualifications, experience, and internal equity. In addition to the salary, you will be eligible for 205,000 stock options and benefits like health insurance, 401k, and paid time off. Learn more about our benefits at https://jobs.collectivehealth.com/benefits/.<div><h3 class="jobSectionHeader">
Why Join Us?</h3>
<ul><li>Mission-driven culture that values innovation, collaboration, and a commitment to excellence in healthcare</li>
<li>Impactful projects that shape the future of our organization</li>
<li>Opportunities for professional development through internal mobility opportunities, mentorship programs, and courses tailored to your interests</li>
<li>Flexible work arrangements and a supportive work-life balance</li>
</ul>
We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. Collective Health is committed to providing support to candidates who require reasonable accommodation during the interview process. If you need assistance, please contact recruiting-accommodations@collectivehealth.com.
<h3 class="jobSectionHeader">
Privacy Notice</h3>

For more information about why we need your data and how we use it, please see our privacy policy: https://collectivehealth.com/privacy-policy/.</div></div>

Lead Backend Engineer

CHAOS Industries

<div>
 CHAOS Industries is redefining modern defense with omniscient systems purpose-built for today&rsquo;s realities. Designed and built by top U.S. military veterans and Silicon Valley innovators, CHAOS Industries&rsquo; products are powered by Coherent Distributed Networks (CDN&trade;), empowering warfighters, commercial air operators, and border protection teams to act faster, adapt rapidly, and stay ahead of evolving threats. In a world where technological threats move at unprecedented speed, CHAOS Industries delivers advanced sensing and detection solutions that give the ultimate advantage: time.
 
 
 CHAOS Industries was founded in 2022 and has raised $1B in total funding from leading investors including 8VC, Accel, and NEA. The company is headquartered in Los Angeles, with offices in Washington, D.C., San Francisco, Seattle, and London. For more information, please visit www.chaosinc.com.
 
 
 
 Role Overview
 
 
 
 CHAOS is seeking a highly skilled and motivated Software Engineer to join our team and help us build the next generation of sensor infrastructure. In this highly collaborative role, you&rsquo;ll work in multiple parts of the stack and take on responsibility for large parts of the product.
 
 
 
 Responsibilities
 
 
 
 <ul>
 <li>
 Develop software that runs the CHAOS products &ndash; everything from the backend endpoints to the system diagnostics, operation, analysis, and testing
 </li>
 <li>
 As an early engineer on a growing team, define major parts of our software stack, including choice of frameworks and systems
 </li>
 <li>
 Backend engineering, primarily in python, to build the services that power our product
 </li>
 <li>
 Frontend engineering, primarily in typescript and react, to build the user interfaces
 </li>
 <li>
 Mentor other engineers as the team grows, and work with engineering leadership to define longer term roadmaps
 </li>
 <li>
 Support and collaborate with system, software, and hardware engineers
 </li>
 <li>
 Periodic travel to our other offices in LA, Washington DC, and London
 
 
 </li>
 </ul>
 
 Minimum Requirements
 
 
 
 <ul>
 <li>
 Minimum of 3 years of experience in software development using python, typescript, or equivalent
 </li>
 <li>
 Experience with modern software practices like git, unit tests, CI/CD, release management, etc
 </li>
 <li>
 Experiencing building, testing, and supporting major systems in production
 
 
 </li>
 </ul>
 
 Preferred Requirements
 
 
 
 <ul>
 <li>
 Development experience in Ground or Airborne Sensors (Radars, EO/IR, EW, etc.)
 </li>
 <li>
 Experience with data engineering/big data analysis
 </li>
 <li>
 Familiarity with Agile lifecycle processes including Scrum, Continuous Integration, and Test Driven Development Methodologies
 </li>
 <li>
 Experience with Software Defined Radios (e.g. Ettus)
 </li>
 <li>
 Experience with 2D and 3D Visualization ideally in defense use cases
 </li>
 <li>
 Experience with SW development tools enforcing SW-development best practices (e.g. linting, code coverage, code quality/security scanning, doc gen, etc.)
 </li>
 <li>
 Experience with SW Design, code, integration, and test of production systems
 </li>
 <li>
 Experience with git
 </li>
 <li>
 Familiarity with Azure or other cloud platforms
 </li>
 <li>
 Experience with additional languages such as Rust, NodeJS, Java, Bash, etc.
 </li>
 <li>
 Work with the commercial off-the-shelf (COTS) hardware (e.g. computers, switches, Software-Defined Radios, etc.)
 
 
 </li>
 </ul>
 
 Why CHAOS?
 
 
 
 <ul>
 <li>
 Health Benefits: Medical, dental, and vision benefits 100% paid for by the company
 </li>
 <li>
 Additional benefits: 401k (+ 50% company match up to 6% of pay), FSA, HSA, life insurance, and more
 </li>
 <li>
 Our Perks: Free daily lunch, &lsquo;No meeting Fridays&rsquo;, unlimited PTO, casual dress code
 </li>
 <li>
 Compensation Components: Competitive base salaries, generous pre-IPO stock option grants, relocation assistance, and (coming soon!) annual bonuses
 </li>
 <li>
 Team Growth: 200 employees and counting across 5 global offices
 
 
 </li>
 </ul>
 
 
 Salary Range:
 
 
 $130,000 - $220,000
 
 
 
 The stated compensation range reflects only the targeted base compensation range and excludes additional earnings such as bonus, equity, and benefits. If your compensation requirements fall outside of the range, we still encourage you to apply. The salary range for this role is an estimate based on a range of compensation factors, inclusive of base salary only. Actual salary offer may vary based on (but not limited to) work experience, education and/or training, critical skills, and/or business considerations.
 
 
 
</div>

Fullstack Software Engineer

Gridware

<div>
 
 
 
 About Gridware
 
 
 
 
 
 Gridware is a San Francisco-based technology company dedicated to protecting and enhancing the electrical grid. We pioneered a groundbreaking new class of grid management called active grid response (AGR), focused on monitoring the electrical, physical, and environmental aspects of the grid that affect reliability and safety. Gridware&rsquo;s advanced Active Grid Response platform uses high-precision sensors to detect potential issues early, enabling proactive maintenance and fault mitigation. This comprehensive approach helps improve safety, reduce outages, and ensure the grid operates efficiently. The company is backed by climate-tech and Silicon Valley investors. For more information, please visit&nbsp;
 
 www.Gridware.io
 
 .
 
 
 
 
 
 
 
 Role Description
 
 
 
 We&rsquo;re looking for a Senior Frontend Engineer to shape the interfaces and visual systems that bring Gridware&rsquo;s platform to life. You&rsquo;ll design and build user experiences that allow operators to visualize grid health, monitor device performance, and make real-time decisions that keep communities safe.
 
 
 
 
 
 You&rsquo;ll work closely with backend, data, and product teams to create intuitive, performant, and reliable tools for visualizing complex sensor data. This role is perfect for someone who wants to blend technical depth with design empathy - and enjoys turning dense technical information into clear, actionable insights.
 
 
 
 
 
 
 Responsibilities
 
 <ul>
 <li>
 Build and maintain responsive, high-performance web applications using modern frameworks.
 </li>
 <li>
 Collaborate with backend and data teams to visualize sensor data and fleet insights in real time.
 </li>
 <li>
 Drive frontend architecture and component design, ensuring scalability and maintainability.
 </li>
 <li>
 Champion user experience and accessibility, helping shape the design language of Gridware&rsquo;s platform.
 </li>
 <li>
 Implement strong testing, performance, and observability practices across the frontend stack.
 </li>
 </ul>
 
 
 
 
 Required Skills
 
 <ul>
 <li>
 3+ years of experience developing modern web applications in React, TypeScript, and related technologies.
 </li>
 <li>
 Strong understanding of state management, performance optimization, and API integration.
 </li>
 <li>
 Proven ability to deliver complex, data-driven user interfaces with high reliability.
 </li>
 <li>
 Ability to thrive in a fast-moving, high-autonomy environment.
 </li>
 <li>
 Strong collaboration and communication skills across engineering, product, and design teams.
 </li>
 </ul>
 
 
 
 
 Bonus Skills
 
 <ul>
 <li>
 Experience visualizing real-time or geospatial data.
 </li>
 <li>
 Familiarity with design systems and component libraries (e.g., Storybook, Chakra, Material).
 </li>
 <li>
 Experience building internal tools or operational dashboards.
 </li>
 <li>
 Interest in IoT, energy, or real-time systems.
 </li>
 </ul>
 
 
 
 
 
 
 
 This describes the ideal candidate; many of us have picked up this expertise along the way. Even if you meet only part of this list, we encourage you to apply!
 
 
 
 
 
 
 
 
 Benefits
 
 
 
 
 Health, Dental &amp; Vision (Gold and Platinum with some providers plans fully covered)&nbsp;
 
 
 Paid parental leave&nbsp;
 
 
 Alternating day off (every other Monday)
 
 
 &ldquo;Off the Grid&rdquo;, a two week per year paid break for all employees.&nbsp;
 
 
 Commuter allowance&nbsp;
 
 
 Company-paid training&nbsp;
 
</div>

Software Engineer, Frontend

Sciforium

<div>
 Sciforium is an AI infrastructure company developing next-generation multimodal AI models and a proprietary, high-efficiency serving platform. Backed by multi-million-dollar funding and direct sponsorship from AMD with hands-on support from AMD engineers the team is scaling rapidly to build the full stack powering frontier AI models and real-time applications.
 
 
 We offer a fast-moving, collaborative environment where engineers have meaningful impact, learn quickly, and tackle deep technical challenges across the AI systems stack.
 
 
 
 Role Overview
 
 
 
 This role offers a unique opportunity to work on the core systems that power Sciforium&rsquo;s multimodal AI models. You&rsquo;ll help build the model serving platform working across C++, Python, runtime execution, and distributed infrastructure to create a fast, reliable engine for real-time AI applications.
 
 
 You&rsquo;ll gain hands-on experience with performance engineering, learn how large AI models are optimized and deployed at scale, and collaborate closely with ML researchers and experienced systems engineers. If you enjoy delighting customers with a great Developer Experience, care deeply about performance, and want exposure to the full AI stack, this role provides both high-impact work and strong growth potential.
 
 
 
 Key Responsibilities
 
 
 
 <ul>
 <li>
 Interactive AI Chat interface: Design and build a low-latency, chat-like interface for users to test our LLMs.
 </li>
 <li>
 Developer Console: Build the mission-critical UI where users generate API Keys, set budget limits, and view real-time usage graphs
 </li>
 <li>
 Payments &amp; Billing: Integrate Stripe (or similar) to handle complex subscription models.
 </li>
 <li>
 Documentation Portal: creating a dynamic API reference section
 </li>
 <li>
 CLI/SDK Integration: Write simple client-side wrappers to help users connect to our API endpoints easily.
 </li>
 <li>
 Backend APIs: Building secure API gateways and implementing low latency streaming solutions.
 
 
 </li>
 </ul>
 
 Must-Haves
 
 
 
 <ul>
 <li>
 Bachelor&rsquo;s degree in Computer Science, Engineering, or a related technical field (or equivalent practical experience)
 </li>
 <li>
 3+ years of software engineering experience, with a focus on front end development.
 </li>
 <li>
 Strong proficiency in Typescript, Python.
 </li>
 <li>
 Understanding of responsive design, and UX fundamentals
 </li>
 <li>
 Strong collaboration and communication skills, with the ability to work effectively across engineering and ML teams.
 </li>
 <li>
 Comfortable working from the office and contributing to a fast-moving, high-ownership team culture.
 
 
 </li>
 </ul>
 
 Nice to Have
 
 
 
 <ul>
 <li>
 Experience with ML systems engineering, open source inference engine like vLLM, Sglang, or TRT-LLM
 </li>
 <li>
 Streaming Expertise: You understand the difference between WebSockets and Server-Sent Events (SSE) and know how to handle "jittery" network streams without freezing the UI.
 </li>
 <li>
 Billing integration: Experience integrating Stripe Elements, managing webhooks for payment success/failure, and handling "SaaS" logic (pro-rating, tiers).
 </li>
 <li>
 Documentation Mindset: You appreciate good DX (Developer Experience). You know how to render an API spec into a readable web page.
 </li>
 <li>
 Python/Backend Knowledge: You can read a FastAPI or vLLM backend codebase to understand how data is being sent to you
 
 
 </li>
 </ul>
 
 Why Join Us
 
 
 
 <ul>
 <li>
 Opportunity to build frontier-scale AI infrastructure powering next-generation LLMs and multimodal models.
 </li>
 <li>
 Work with top-tier engineers and researchers across systems, GPUs, and ML frameworks.
 </li>
 <li>
 Tackle high-impact performance and scalability challenges in training and inference.
 </li>
 <li>
 Access state-of-the-art GPU clusters, datasets, and tooling.
 </li>
 <li>
 Opportunity to publish, patent, and push the boundaries of modern AI
 </li>
 <li>
 Join a culture of innovation, ownership, and fast execution in a rapidly scaling AI organization.
 
 
 </li>
 </ul>
 
 Benefits Include
 
 
 
 <ul>
 <li>
 Medical, dental, and vision insurance
 </li>
 <li>
 401k plan
 </li>
 <li>
 Daily lunch, snacks, and beverages
 </li>
 <li>
 Flexible time off
 </li>
 <li>
 Competitive salary and equity
 
 
 </li>
 </ul>
 
 Equal opportunity
 
 
 
 Sciforium is an equal opportunity employer. All applicants will be considered for employment without attention to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran or disability status.
 
 
 Compensation Range: $190K - $250K
 
 
</div>

Software Engineer, Fullstack

Strava

<div><h2 class="jobSectionHeader">About This Role</h2>

Strava is the app for active people. With over 150 million athletes in more than 185 countries, Strava is where connection, motivation, and personal bests thrive. No matter your activity, gear, or goals, we help you find your crew, crush your milestones, and keep moving forward. Start your journey with Strava today.

Our mission is simple: to motivate people to live their best active lives. We believe in the power of movement to connect and drive people forward.

We&rsquo;re seeking a Senior iOS Engineer to join the B2B team and help us build innovative sponsored experiences that delight millions of athletes while driving revenue in a space that is strategically critical for Strava&rsquo;s continued growth and success. As the sole iOS engineer on a team of six engineers, you will have a unique opportunity to have a huge individual impact.

You will also collaborate daily with Strava's 20+ iOS engineers through shared architecture reviews, pair programming sessions, code reviews, and our active iOS guild. Join the team behind the #1 fitness app and the 2025 Apple Watch App of the Year and help us continue setting the bar for iOS excellence.
<h2 class="jobSectionHeader">
What You&rsquo;ll Do:</h2>
<ul><li>Develop new and creative products that appeal to Strava&rsquo;s end-users and B2B partners alike</li>
<li>Continuously enhance the Challenges product to drive consumer and B2B growth</li>
<li>Partner deeply with product and design to shape features together through iteration and experimentation, shipping high-quality work through continuous refinement</li>
<li>Set the technical direction on iOS for the B2B space and help shape the team&rsquo;s culture</li>
<li>Mentor engineers across the organization&mdash;sharing not just technical knowledge but the behaviors, habits, and decision-making frameworks that help engineers grow and succeed.</li>
</ul>
We follow a flexible hybrid model that translates to more than half of your time on-site in our San Francisco office &mdash; three days per week.
<h2 class="jobSectionHeader">
What You&rsquo;ll Bring to the Team:</h2>
<ul><li>You have 5+ years of professional software development experience or equivalent expertise in iOS engineering.</li>
<li>You are well-versed in breaking down complex product requirements into tangible specs and plans.</li>
<li>You have a firm foundation of SwiftUI and UIKit development and can navigate occasional Objective-C work.</li>
<li>You care deeply about mobile architecture and scalability.</li>
<li>You have demonstrated experience building sophisticated iOS components&ndash;from complex custom animations and gesture systems to novel interaction patterns that surprise and delight users.</li>
<li>You excel at giving and receiving high-quality feedback, have strong product intuition and design sense, and foster a culture of continuous improvement in the teams you're a part of.</li>
<li>You are comfortable using data to make decisions, bring others along, and understand the impact of your work.</li>
</ul><h2 class="jobSectionHeader">Compensation Overview:
</h2>At Strava, we know our employees are the most important ingredient to our success, and our compensation and total rewards programs reflect that. We take a market-based approach to pay, and pay may vary depending on the department and your location. Salary ranges are categorized into one of three zones based on a cost of labor index for that geographic area. We will determine the candidate&rsquo;s starting pay based on job-related skills, experience, qualifications, work location, and market conditions. We may modify these ranges in the future.

Compensation: $175,000 - $200,000. This range reflects base compensation only and does not include equity or benefits. Your recruiter can share more details about the full compensation package during the hiring process. 

<h2 class="jobSectionHeader">
Why Join Us?</h2>

Movement brings us together. At Strava, we&rsquo;re building the world&rsquo;s largest community of active people, helping them stay motivated and achieve their goals.

Our global team is passionate about making movement fun, meaningful, and accessible to everyone. Whether you&rsquo;re shaping the technology, growing our community, or driving innovation, your work at Strava makes an impact.

When you join Strava, you&rsquo;re not just joining a company&mdash;you&rsquo;re joining a movement. If you&rsquo;re ready to bring your energy, ideas, and drive, let&rsquo;s build something incredible together.

Strava builds software that makes the best part of our athletes&rsquo; days even better. Just as we&rsquo;re deeply committed to unlocking their potential, we&rsquo;re dedicated to providing a world-class, inclusive workplace where our employees can grow and thrive, too. We&rsquo;re backed by Sequoia Capital, TCV, Madrone Partners and Jackson Square Ventures, and we&rsquo;re expanding in order to exceed the needs of our growing community of global athletes. Our culture reflects our community. We are continuously striving to hire and engage teammates from all backgrounds, experiences and perspectives because we know we are a stronger team together.

Strava is an equal opportunity employer. In keeping with the values of Strava, we make all employment decisions including hiring, evaluation, termination, promotional and training opportunities, without regard to race, religion, color, sex, age, national origin, ancestry, sexual orientation, physical handicap, mental disability, medical condition, disability, gender or identity or expression, pregnancy or pregnancy-related condition, marital status, height and/or weight.

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation.

California Consumer Protection Act Applicant Notice</div>

Senior iOS Engineer I tags.new

Explore 113+ Backend software engineer b2b applications in San Francisco this December. Find roles across top companies and apply now to boost your career.