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infrastructure engineer

Domu

<div>
 At Domu.ai, we're building the infrastructure that will replace call centers at the world's largest financial institutions. Voice AI that handles thousands of live calls every day for Fortune 500 banks and insurers, end-to-end. Call volume is 3x-ing monthly. We're hitting problems most startups never see: real-time voice AI at scale, legacy banking infrastructure, enterprise telephony, and regulatory constraints.
 
 
 The role
 
 
 As the
 
 Software Engineer
 
 you'll.....
 
 
 <ul>
 <li>
 Build and own core product features: Backend systems, APIs, voice infrastructure, wherever the product needs you. Code ships daily and goes live for Fortune 500 clients.
 </li>
 <li>
 Work on things most engineers never touch: telephony systems, real-time voice processing, and integrations with legacy financial infrastructure. The problems are hard. That's the point.
 </li>
 <li>
 95%+ of your time will be coding and building.
 </li>
 <li>
 We're looking for engineers who can own one of these areas: the orchestration layer that coordinates our voice AI systems, infrastructure scaling and low-level performance, security as a generalist building for Fortune 500 financial institutions, or product engineering close to users finding high-leverage wins.
 </li>
 <li>
 Know what it feels like when things are working: real customers, real revenue, a product people actually need. You also know the chaos, the pace, the things that break at the worst possible time. You've seen both sides and you want to do it again with a team that's already found traction.
 
 
 </li>
 </ul>
 How we work
 
 
 <ul>
 <li>
 Four engineers. Everyone ships to production.
 </li>
 <li>
 We do dailies. We groom tickets. But we keep process light and in service of the work, not the other way around. We'd rather spend time building than talking about building.
 </li>
 <li>
 We care about doing great work. Not just shipping, but shipping something you're proud of. Clean abstractions. Systems that don't page you at 3am. Code you wouldn't be embarrassed to open-source. We build things that last because we're the ones maintaining them.
 </li>
 <li>
 Ownership here is real. You won't be handed tasks from a backlog. You'll see what needs to happen and do it. That's how a small team ships to Fortune 500 customers.
 </li>
 <li>
 We hire people whose judgment we trust, then get out of their way. No passengers.
 
 
 </li>
 </ul>
 What you bring
 
 
 <ul>
 <li>
 3+ years of experience as a software engineer
 </li>
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 Previously worked at a Series A (or similar stage) startup and went through the same hypergrowth challenges Domu is facing
 </li>
 <li>
 Experience dealing with legacy systems and refactoring them into sustainable, scalable architectures
 </li>
 <li>
 Strong backend fundamentals - can own features end-to-end from design to production
 </li>
 <li>
 Proficiency in TypeScript and/or Python
 </li>
 <li>
 Cares about doing great work - clean abstractions, reliable systems, code you'd be proud to open-source
 
 
 </li>
 </ul>
 Extras we'd be excited about
 
 
 <ul>
 <li>
 Telephony/Voice infrastructure - SIP, SRTP, WebRTC, or platforms like Telnyx, Twilio, LiveKit
 </li>
 <li>
 High-throughput distributed systems - queue workers, event-driven architectures, handling 1M+ daily transactions
 </li>
 <li>
 PostgreSQL at scale - query optimization, replication, connection pooling
 </li>
 <li>
 Kubernetes - production deployments, scaling stateful services
 </li>
 <li>
 Real-time data pipelines - ClickHouse, Kafka, or similar OLAP/streaming solutions
 </li>
 <li>
 AWS infrastructure - SQS, containerized deployments
 </li>
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 Compliance-conscious environments - SOC 2, ISO 27001, or fintech/enterprise security requirements
 </li>
 <li>
 Experience with AI/ML integrations in production (LLMs, voice AI)
 </li>
 <li>
 Familiarity with contact center / dialer systems
 </li>
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 You've been through the early stages of a startup before.
 </li>
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 You care about the craft. You want to build something good, not just something that works.
 
 
 </li>
 </ul>
 Why Domu
 
 
 <ul>
 <li>
 You'll be engineer #5. Small team, high leverage. Your work ships immediately.
 </li>
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 Real traction. Post-revenue, Fortune 500 customers, 3x monthly growth. This isn't a bet on an idea. The product works and customers are paying for it.
 </li>
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 You'll learn how enterprise deals work from an engineering seat. You'll see the direct line between your code and revenue.
 </li>
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 Early enough to shape the product, the team, and the culture.
 
 
 </li>
 </ul>
 What we offer
 
 
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 Healthcare
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 weekly stipend for food and transportation
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 gym membership
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 equipment budget (strict rules on noisy mechanical keyboards)
 </li>
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 whatever tools you need
 
 
 </li>
 </ul>
 Interview
 
 
 <ul>
 <li>
 Conversation with Kai (Head of Engineering)
 </li>
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 Technical screen
 </li>
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 Take-home or live-coding
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 Team interview (1 hour, 2 engineers)
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 Paid trial
 
 
 </li>
 </ul>
</div>

Software Engineer

Kennedy/Jenks Consultants

Founded in 1919, KJ has always looked to the future. With a talented team of professionals and a culture of continuous improvement, we deliver exceptional engineering, environmental consulting, and construction management services, with a focus on innovation and sustainability. Using advanced analytics, technology, and tools, KJ improves designs, reduces risk, and finds better ways to deliver projects from planning through construction. KJ is at the forefront of developing sustainable solutions for clients, including green infrastructure design, strategies to reduce energy use and environmental impacts, award-winning water reuse projects, and efficient construction management practices that ensure quality, safety, and on-time delivery. We are known for our dedication to industry-leading client service and tailored solutions.
 
KJ is seeking a collaborative Senior Process Mechanical Engineer to join our growing Water Infrastructure team to projects company wide. The Senior Process Mechanical Engineer is responsible for ensuring the Water treatment processes are efficient, compliant with regulations and environmentally responsible.
 
Key Responsibilities: 
This position will function as the technical expert focusing on water process projects across the organization. This position will apply advanced engineering techniques and analysis for solution development, effectively communicate with all stakeholders and levels, and will manage projects focused on water process.
 
<ul>
<li>This position will be responsible for projects focused on detailed design and project management of small to large civil infrastructure projects including, but not limited to, water, sanitary sewer collection systems, pump stations and water treatment processes and plants.</li>
<li>Design and optimize water treatment processes, including physical, chemical and biological treatment systems, to maximize efficiency and minimize environmental impact.</li>
<li>Manage projects from the planning phase through construction.</li>
<li>Supporting business development and helping to identify and develop new water pursuits. Collaborate with our existing contacts in the wastewater industry to identify and develop new business opportunities.</li>
</ul>
Qualifications: 
<ul>
<li>7+ years of progressive relevant water experience</li>
<li>Bachelor's or Master's degree in Civil, Environmental or Mechanical Engineering. Advanced degree strongly preferred</li>
<li>Professional Engineer (PE) license required (ideally California, Oregon, Washington or Colorado with willingness and ability to add additional states)</li>
<li>Wastewater process experience with strong technical knowledge of the water industry</li>
<li>Demonstrated ability to provide excellent client service and interact positively with clients</li>
<li>Experience with business development and sales</li>
<li>Excellent written and oral communication skills</li>
<li>Design-Build experience a plus but not required</li>
</ul>
Kennedy Jenks supports a healthy work-life balance and utilizes a hybrid model of home and office work to empower our people to thrive and achieve their full potential.
 
Salary range for this position is anticipated to be $150,000 to $181,000, and may vary based upon education, experience, qualifications, licensure/certifications and geographic location.
 
Benefits summary: Medical, dental, vision, life and disability insurance, 401k, bonus opportunities, tuition reimbursement, professional registration support, a competitive PTO and holiday plan, and other benefits and programs.
 
#LI-Hybrid
 
Kennedy Jenks is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, creed, sex, pregnancy and pregnancy-related conditions, sexual orientation, gender identity, national origin, age, marital status, disability, citizenship status, genetics, protected veteran status, or any other characteristics protected by applicable law.

Senior Process Mechanical Engineer - Water

Notion

<div>
 
 About Us
 
 
 
 Notion helps you build beautiful tools for your life&rsquo;s work. In today's world of endless apps and tabs, Notion provides one place for teams to get everything done, seamlessly connecting docs, notes, projects, calendar, and email&mdash;with AI built in to find answers and automate work. Millions of users, from individuals to large organizations like Toyota, Figma, and OpenAI, love Notion for its flexibility and choose it because it helps them save time and money.
 
 
 In-person collaboration is essential to Notion's culture. We require all team members to work from our offices on Mondays, Tuesdays, and Thursdays, our designated Anchor Days. Certain teams or positions may require additional in-office workdays.
 
 
 
 About The Role
 
 
 
 We&rsquo;re building Notion Mail to rethink how email fits into the bigger picture of your work. Over time, it reduces context switching, connects email to the rest of Notion, and uses AI to help people move faster from &ldquo;inbox&rdquo; to &ldquo;done.&rdquo; We&rsquo;re looking for a backend engineer to help build and evolve the systems behind Notion Mail, including the infrastructure, data models, and asynchronous workflows that make high-quality syncing and AI-powered experiences possible.
 
 
 On the backend, you&rsquo;ll work on services that power inbox intelligence, such as auto-triage and auto-drafting workflows, and the reliability and observability that these experiences depend on. You&rsquo;ll collaborate closely with product, design, and other engineering teams, and you&rsquo;ll have meaningful ownership in a product that&rsquo;s early enough for your work to shape the foundation and direction.
 
 
 
 What You'll Achieve
 
 
 
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 Own systems and infrastructure that power AI-assisted email communication workflows at scale.
 </li>
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 Build and evolve reliable data flows and models that keep email state accurate and up to date.
 </li>
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 Design asynchronous processing systems that support high-volume, low-latency product experiences.
 </li>
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 Partner cross-functionally with engineering, product, and design to deliver end-to-end features from backend foundations to customer facing experiences.
 </li>
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 Help keep production systems healthy by strengthening observability, improving performance, and increasing operational reliability over time.
 
 
 </li>
 </ul>
 
 Skills You'll Need To Bring
 
 
 
 <ul>
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 Systems design &amp; production infrastructure experience: You&rsquo;ve designed systems with clear tradeoffs, and you have hands on experience with infrastructure topics like Kubernetes, observability/telemetry (e.g., Honeycomb), and operating reliable production systems.
 </li>
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 Strong data modeling skills: You can design durable data models and APIs that are correct, evolvable, and performant as product requirements grow.
 </li>
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 Ownership and initiative: You thrive in a fast-moving, unstructured environment and are comfortable taking ownership of ambiguous problems. You act with a bias toward action and focus on results.
 </li>
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 Pragmatic problem-solver: You prioritize business impact and understand the balance between craft, speed, and long-term maintainability. You&rsquo;re opinionated but not ideological, and you learn new technologies as you go.
 </li>
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 Collaborative and empathetic: You work well across teams, offer guidance to unblock others, and communicate clearly when aligning on technical direction.
 </li>
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 You don&rsquo;t need to be an AI expert, but you&rsquo;re curious and willing to adopt AI tools to work smarter and deliver better results
 
 
 </li>
 </ul>
 
 Nice To Haves
 
 
 
 <ul>
 <li>
 Past full stack experience, or interest in doing some full stack work over time
 </li>
 <li>
 Experience building high-volume asynchronous job execution and orchestration systems
 </li>
 <li>
 Hands-on experience with AWS infrastructure and a background in distributed systems
 
 
 </li>
 </ul>
 We hire talented and passionate people from a variety of backgrounds because we want our global employee base to represent the wide diversity of our customers. If you&rsquo;re excited about a role but your past experience doesn&rsquo;t align perfectly with every bullet point listed in the job description, we still encourage you to apply. If you&rsquo;re a builder at heart, share our company values, and enthusiastic about making software toolmaking ubiquitous, we want to hear from you.
 
 
 Notion is proud to be an equal opportunity employer. We do not discriminate in hiring or any employment decision based on race, color, religion, national origin, age, sex (including pregnancy, childbirth, or related medical conditions), marital status, ancestry, physical or mental disability, genetic information, veteran status, gender identity or expression, sexual orientation, or other applicable legally protected characteristic. Notion considers qualified applicants with criminal histories, consistent with applicable federal, state and local law. Notion is also committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If you need assistance or an accommodation due to a disability, please let your recruiter know.
 
 
 Notion is committed to providing highly competitive cash compensation, equity, and benefits. The compensation offered for this role will be based on multiple factors such as location, the role&rsquo;s scope and complexity, and the candidate&rsquo;s experience and expertise, and may vary from the range provided below. For roles based in San Francisco or New York City, the estimated base salary range for this role is $176,000 - $207,000 per year.
 
 
 By clicking &ldquo;Submit Application&rdquo;, I understand and agree that Notion and its affiliates and subsidiaries will collect and process my information in accordance with Notion&rsquo;s Global Recruiting Privacy Policy and NYLL 144.
 
 
</div>

Software Engineer, Mail

Plaid

<div>
 We believe that the way people interact with their finances will drastically improve in the next few years. We&rsquo;re dedicated to empowering this transformation by building the tools and experiences that thousands of developers use to create their own products. Plaid powers the tools millions of people rely on to live a healthier financial life. We work with thousands of companies like Venmo, SoFi, several of the Fortune 500, and many of the largest banks to make it easy for people to connect their financial accounts to the apps and services they want to use. Plaid&rsquo;s network covers 12,000 financial institutions across the US, Canada, UK and Europe. Founded in 2013, the company is headquartered in San Francisco with offices in New York, Washington D.C., London and Amsterdam.
 
 
 Plaid&rsquo;s Platform Engineering organization comprises multiple teams focused on core infrastructure, data platforms, storage, privacy, and developer efficiency. Together, these teams ensure that Plaid&rsquo;s technology platform is scalable, reliable, and secure to support our rapid growth. Our infrastructure handles millions of requests per day, and we pride ourselves on maintaining highly robust and performant systems. As a Platform Engineer, you will design, build, and maintain the foundational infrastructure and internal platforms that empower all of Plaid&rsquo;s engineering teams to move quickly and safely. You&rsquo;ll work cross-functionally with product engineering squads to ship new features and ensure operational excellence throughout each product&rsquo;s lifecycle.
 
 
 
 Responsibilities
 
 
 
 <ul>
 <li>
 Design &amp; Develop Scalable Systems: Build and maintain core platform services with a focus on performance, reliability, and scalability. You will create and evolve distributed backend systems that serve as the bedrock for products used by millions of users.
 </li>
 <li>
 Infrastructure &amp; Data Platforms: Develop and improve infrastructure for data storage and processing &ndash; for example, high-performance databases and modern data processing frameworks &ndash; to handle Plaid&rsquo;s growing data and product needs. Ensure our data infrastructure is robust and can scale effectively.
 </li>
 <li>
 Developer Productivity Tools: Create internal tools, frameworks, and automation to improve developer productivity and efficiency. This includes building CI/CD pipelines, observability and monitoring systems, and self-service infrastructure platforms that enable teams to ship code quickly and safely.
 </li>
 <li>
 Security &amp; Privacy by Design: Integrate security, privacy, and compliance best practices into our platforms (e.g. data encryption, access controls, audit logging) to protect sensitive financial data. Work closely with Security and Privacy teams to ensure our infrastructure and internal services meet high standards for data protection and regulatory compliance.
 </li>
 <li>
 Cross-Team Collaboration: Work hand-in-hand with product engineers and other stakeholders to understand requirements and translate them into reliable platform capabilities. Facilitate smooth integration of platform solutions into various products, and coordinate across teams to resolve issues and deliver new features efficiently.
 </li>
 <li>
 Technical Excellence &amp; Leadership: Uphold high engineering standards through code reviews, testing, and documentation. Take initiative in setting technical direction and architecture for platform systems, and mentor junior engineers to help grow their skills. You will lead by example in driving best practices and continuously improving the quality of our engineering solutions.
 
 
 </li>
 </ul>
 
 Qualifications
 
 
 
 <ul>
 <li>
 Experience: 2 to 4 years of software engineering experience, with a proven track record of building and shipping complex backend systems or platforms. Experience designing and scaling distributed systems is highly desired.
 </li>
 <li>
 Strong Coding Skills: Proficiency in at least one general-purpose programming language (e.g. Go, Python, Java, C++). Our core services are built largely in Go, so experience with Go is a plus. You write clean, efficient, and maintainable code and have solid computer science fundamentals.
 </li>
 <li>
 Distributed Systems &amp; Problem Solving: Deep understanding of system design and algorithms. Hands-on experience with designing, building, and operating distributed systems or microservices architectures at scale. Ability to debug complex issues in a production environment and optimize system performance and reliability.
 </li>
 <li>
 Data and Databases: Familiarity with relational and NoSQL database technologies (for example, MySQL/TiDB, PostgreSQL, MongoDB) and data storage architectures. Experience building data pipelines or working with big data processing frameworks (Spark, Databricks, etc.) is a plus.
 </li>
 <li>
 Collaboration &amp; Communication: Excellent communication and teamwork skills, with the ability to work effectively in a cross-functional environment. You can collaborate closely with other engineers, product managers, and stakeholders, and you&rsquo;re able to explain complex technical concepts in simple terms when needed.
 
 
 </li>
 </ul>
 $163,200 - $223,200 a year
 
 
 The target base salary for this position ranges from $163,200/year to $223,200/year in San Francisco and New York.
 
 
 The base salary range listed for this full-time position excludes equity and benefits. The pay range shown on each job posting is the minimum and maximum target for new-hire salaries. Actual pay may be higher or lower depending on factors like skills, experience, and relevant education or training.
 
 
 Our mission at Plaid is to unlock financial freedom for everyone. To support that mission, we seek to build a diverse team of driven individuals who care deeply about making the financial ecosystem more equitable. We recognize that strong qualifications can come from both prior work experiences and lived experiences. We encourage you to apply to a role even if your experience doesn't fully match the job description. We are always looking for team members that will bring something unique to Plaid!
 
 
 Plaid is proud to be an equal opportunity employer and values diversity at our company. We do not discriminate based on race, color, national origin, ethnicity, religion or religious belief, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender, gender identity, gender expression, transgender status, sexual stereotypes, age, military or veteran status, disability, or other applicable legally protected characteristics. We also consider qualified applicants with criminal histories, consistent with applicable federal, state, and local laws. Plaid is committed to providing reasonable accommodations for candidates with disabilities in our recruiting process. If you need any assistance with your application or interviews due to a disability, please let us know at [email protected] .
 
 
 Please review our Candidate Privacy Notice here .
</div>

Software Engineer - Platform

DOSU

<div>TL;DR: Dosu is pushing the boundaries of what coding agents are capable of and we want to maintain our place at the forefront of LLM utility and innovation. We are hiring for highly technical engineers who want to build alongside a world-class team of like-minded engineers. If you're excited about tackling complex problems end-to-end, we should talk.<h1 class="jobSectionHeader">
The Team</h1><ul><li>
We are a small passionate team of ex-founders, repeat founding engineers, and OSS maintainers</li><li>
We like to delight users</li><li>
We care about building an enduring business&mdash;we are not a research lab</li><li>
We have an office in San Francisco in-between Hayes Valley, Mission, and Castro</li></ul>
What We Look For<ul><li>
You want to solve problems end-to-end: Our team is split vertically, so every engineer owns a part of the product and needs to make decisions across the LLM pipeline, infrastructure, backend, and UX (with help!).</li><li>
You have a high bar for quality: In a startup, moving fast is essential. But even more important is to care about your output, obsess about details, and build a product that works, especially in the time of AI. Slop compounds!</li><li>
You want to push LLM capabilities: We continually push the most advanced AI models to their limits and work with the foundational companies on their new releases.</li><li>
You are a clear thinker and communicator: We only have one meeting a week and expect you to communicate tradeoffs, problems, and blockers directly.</li><li>
You are highly technical and can keep up with our technical team: Most of our team has started coding as young teenagers and nerd out on details from language design to compilers. Our technical team is comprised of PhDs, repeat exited CTOs, and published authors.
</li></ul><h2 class="jobSectionHeader">The Process</h2>
Interviewing is hard. We aim to keep the interview process relatively succinct (1-3 weeks end-to-end), topical to what you&rsquo;d be working on at Dosu, and&mdash;as much as possible&mdash;enjoyable.<h3 class="jobSectionHeader">
1. Intro Call (30 minutes / Google Meet)</h3>
A casual 30 minute video call to<ul><li>
Learn more about you, your background, and what you are looking for next</li><li>
Learn more about Dosu, where we are, where we are going</li><li>
Align on how you might fit into the team</li></ul><h3 class="jobSectionHeader">
2. Take-Home Coding Challenge (1-2 hours)</h3>
Open-book, take-home python coding challenge. We'll share a GitHub repository with you and the goal is to create a PR to implement a feature. This is not a LeetCode or HackerRank type problem. It's meant to be as emblematic of day-to-day work as much as possible and usually takes around an hour, but we give you two hours.
If you have any significant contributions to OSS, please let us know and share with us. We will take OSS contributions into account when reviewing the challenge.<h3 class="jobSectionHeader">
3. Code Review (45 minutes / Google Meet)</h3>
Review your PR from the coding challenge with a team member like you would any PR at work.
The goal is to discuss your approach to solving the problem, including any decisions you made and their tradeoffs, and use this as a launching point for deeper technical discussions.<h3 class="jobSectionHeader">
4. Onsite (3 hours / In-Person)</h3>
Come to our office at 1841 Market St, meet the team, and discuss what it might take to build a product like Dosu.
The onsite interviews are high-level and do not require additional coding.<h1 class="jobSectionHeader">
Interested?</h1>
To apply to this role, please apply here and include the following content:<ul><li>
LinkedIn Include a link to your LinkedIn profile</li><li>
Github/Gitlab Include a link to your Github/Gitlab profile</li><li>
Anything Else Anything else you'd like to share with us!</li></ul>
Compensation Range: $180K - $220K</div>

Technical Staff Engineer

CRUSOE

<div>Crusoe's mission is to accelerate the abundance of energy and intelligence. We&rsquo;re crafting the engine that powers a world where people can create ambitiously with AI &mdash; without sacrificing scale, speed, or sustainability.
Be a part of the AI revolution with sustainable technology at Crusoe. Here, you'll drive meaningful innovation, make a tangible impact, and join a team that&rsquo;s setting the pace for responsible, transformative cloud infrastructure.
About the Role
Crusoe Cloud's Network Engineering team is looking for an ambitious, experienced team player to help design and plan our global edge, backbone, and data center fiber network for High-Performance Compute (HPC) clusters with GPUs. The ideal candidate is highly motivated, self-directed, and passionate about sustainable, energy-efficient infrastructure. You'll bring excellent analytical and comunication skills and thrive in a collaborative environment.
As a Network Infrastructure Planner, you will be responsible for managing the planning and development of Crusoe Cloud&rsquo;s network infrastructure. You will be experienced in planning and designing physical network infrastructure (dark fiber, colocation, and ISP cabling), optical transport technologies, backbone network engineering design principles, and you will have good market knowledge of network infrastructure providers in your region. This role requires extensive collaboration, driving strategic planning initiatives, designing high-availability solutions at scale, and delivering precise documentation. You will actively drive backbone infrastructure solutions for Crusoe Cloud, working with various teams to meet our customers&rsquo; demands.<h3 class="jobSectionHeader">
What You&rsquo;ll Do</h3><ul><li>
Capacity Forecasting: Develop and maintain complex demand models to predict network capacity requirements across backbone, data center, and edge locations.</li><li>
Strategic Roadmap: Work closely with Network Engineering to translate high-level designs into actionable multi-year deployment plans.</li><li>
Fiber Feasibility for new sites: Evaluate new data center sites for network viability, including fiber path diversity, latency profiles, and interconnection opportunities.</li><li>
Circuit Management: Oversee the lifecycle of terrestrial and subsea lit services and dark fiber, from initial RFP through grooming and decommissioning.</li><li>
Optimization: Identify opportunities to optimize network spend and performance by analyzing traffic patterns and peering/transit costs.</li><li>
Technology Roadmap: Track developments in IP and optical technology roadmaps and incorporate emerging capabilities into planning.</li><li>
Scenario Modeling: Model ad-hoc, what-if scenarios &mdash; including greenfield and brownfield demand and supply situations &mdash; to inform strategy.</li><li>
Fiber Topology: Oversee backbone fiber topology evolution to meet resiliency and latency requirements.</li><li>
Fiber Acquisition: Work with engineering, finance, and sourcing to support backbone fiber acquisition strategies.</li></ul><h3 class="jobSectionHeader">
Requirements</h3><ul><li>
15+ years of experience in network planning in a high-capacity, mission-critical environment, or equivalent experience</li><li>
Experience designing IP, optical, or fiber networks with knowledge of current technologies</li><li>
Strong understanding of network topology and resiliency design</li><li>
Experience with network modeling tools such as NPS, One Planner, OPNET, Cariden, WAE, Aria, WANDL, or similar</li><li>
Experience with optical link design, wavelength assignment, and coherent modulation schemes, as well as IP routing protocols</li><li>
Experience modeling and analyzing business cases for network expansion or fiber acquisition</li><li>
Familiarity with both terrestrial and submarine production networks is a plus</li><li>
BS or MS in an engineering or analytical field (e.g., Computer Science, Engineering, Mathematics, Statistics, Operations Research) or equivalent experience</li></ul><h3 class="jobSectionHeader">
Bonus Points</h3><ul><li>
Experience with Infrastructure as Code (IaC) and automated capacity management</li><li>
Background in negotiating IRUs (Indefeasible Rights of Use) for fiber</li><li>
Knowledge of the energy sector or behind-the-meter power constraints</li></ul>
Benefits:<ul><li>
Industry competitive pay</li><li>
Restricted Stock Units in a fast-growing, well-funded technology company</li><li>
Health insurance package options that include HDHP and PPO, vision, and dental for you and your dependents</li><li>
Employer contributions to HSA accounts</li><li>
Paid Parental Leave</li><li>
Paid life insurance, short-term and long-term disability</li><li>
Teladoc</li><li>
Pet-friendly offices</li><li>
401(k) with a 100% match up to 4% of salary</li><li>
Generous paid time off and holiday schedule</li><li>
Cell phone reimbursement</li><li>
Tuition reimbursement</li><li>
Subscription to the Calm app</li><li>
Company paid commuter benefit; $300 per pay period</li></ul>
Compensation Range:
Compensation will be paid in the range of $161,000 - $196,000 + Bonus. Restricted Stock Units are included in all offers. Compensation to be determined by the applicant&rsquo;s education, experience, knowledge, skills, and abilities, as well as internal equity and alignment with market data.
Crusoe is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, disability, genetic information, pregnancy, citizenship, marital status, sex/gender, sexual preference/ orientation, gender identity, age, veteran status, national origin, or any other status protected by law or regulation.</div>

Senior Network Planner

Mochi Health

<div><div>Healthcare is broken at the first step: patients can't find the right care, understand what it costs, or access the medications they need. Mochi Health is fixing this.

We're building an AI-driven marketplace that makes healthcare discoverable&mdash;connecting patients to the right providers, transparent pharmacy pricing, and affordable medications. Over the past few years, we've grown rapidly by combining clinical expertise with technology that actually works for real people, not just hospital systems.

Our platform does what legacy healthcare can't: it gives patients transparent pricing before they pay, personalized medication management that follows them across providers, and long-term access to their own medical records. We're proving that healthcare can be more affordable, more human, and far more intuitive than what exists today.

Join a team that's rebuilding healthcare from the patient up. At Mochi Health, you'll work alongside people who value bold thinking, inclusive collaboration, and getting meaningful work into the world. If you want to do the most impactful work of your career, this is where to do it.</div>
$230,000 - $280,000 (Open to Staff leveling at $280-330K) 
Full-time / Onsite (5 days/week) 
<h2 class="jobSectionHeader">
About The Role</h2>

At Mochi, our engineering team operates with exceptional leverage. We believe in high talent density, where a focused, elite team powers a profitable, nine-figure ARR healthcare platform serving hundreds of thousands of patients. We are looking for a Senior Backend Engineer to own the core systems that power this scale&mdash;from clinical approval workflows and multi-pharmacy fulfillment routing, to complex subscription billing and partner integrations. 
Mochi has already helped patients lose over 5 million pounds through metabolic care, and we are now rapidly expanding into the frontiers of preventative healthcare&mdash;including hormone optimization (HRT/TRT), longevity medicine, and cutting-edge peptide therapies. The backend systems you architect will power how this next wave of patients discovers treatments, qualifies for care, and receives highly personalized, dynamic dosing protocols. 
Because of our high scale-to-team ratio, we do not operate in isolated technical silos. You will own your systems end-to-end: designing the schema, writing the business logic, deploying to Kubernetes, and owning the observability in production. If you are drawn to architectural problems where the domain complexity is real, the autonomy is absolute, and the impact on patient outcomes is tangible, this is the role.
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What You'll Do</h2>
<ul><li>Architect Healthcare Commerce: Build and evolve a subscription and billing infrastructure that handles the messy reality of healthcare. You will solve for mid-cycle medication switches, dynamic pricing across different pharmacy partners, payment recovery, and prorated billing.</li>
<li>Build Clinical State Machines: Own the systems that power complex medication ordering and fulfillment. You will build highly reliable pipelines that handle compounding pharmacy integrations, controlled substance compliance, and personalized dosing protocols across a distributed network of external partners.</li>
<li>Own the Infrastructure: Take hands-on ownership of the AWS and Kubernetes infrastructure that runs your services. You will establish CI/CD pipelines, build observability, and create deployment patterns that make it safe for the entire team to ship rapidly.</li>
<li>Act as a Product Partner: Work directly with Clinical, Operations, and Product teams to shape what we build. You will evaluate proposed workflows, take ownership of business outcomes, and actively identify paths to deliver maximum patient value with highly efficient implementation.</li>
<li>Build Agentic Workflows: Mochi is an AI-first engineering org. You will not only utilize frontier agentic models to accelerate your own development, but you will also design the backend architecture that allows AI-assisted agents to automate clinical operations, improve patient safety, and scale our provider workflows.</li>
<li>Raise the Engineering Bar: Own key architectural decisions, systematically upgrade legacy systems, and elevate the engineers around you through rigorous code review, testing practices, and technical standards.</li>
</ul><h2 class="jobSectionHeader">Who You Are</h2>
<ul><li>You have operated high-stakes systems. You have 5-7+ years of backend engineering experience. You've built and operated production systems that handle real complexity&mdash;not just high traffic, but complex domain logic, distributed stateful workflows, and deep integrations with external partners.</li>
<li>You get data modeling right. You think carefully about schema design, state transitions, and domain boundaries, because you've seen what happens downstream when the foundational model is wrong.</li>
<li>You are an infrastructure owner. You are comfortable with (or eager to master) Kubernetes, Terraform, AWS, and CI/CD, and you view deploying your own code and owning your system's reliability as a fundamental part of backend engineering.</li>
<li>Your workflows are altered by AI. You are already using frontier agentic tools (e.g., Codex 5.3, Claude Opus 4.6) to build faster. You can describe specific ways these models have structurally changed how you code, while retaining the deep technical skepticism required to audit, verify, and own its output.</li>
<li>You are a collaborative builder. You have low ego, high standards, and excellent communication skills. You thrive in cross-functional environments where engineering requirements are heavily shaped by healthcare regulations, compliance, and patient safety.</li>
<li>You are excited to work in-person. You want to build alongside the team 5 days a week in our San Francisco office.</li>
<li>If you are targeting Staff leveling: We expect a demonstrated track record of setting technical direction across teams, navigating deep ambiguity, and measurably leveling up the engineers around you.</li>
</ul>
Our stack is TypeScript, Node.js, Express, PostgreSQL, Redis, Kubernetes, Terraform and AWS. Experience with these is a strong plus, but we index on engineering fundamentals, distributed systems experience, and domain reasoning over language-specific syntax. 

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Our Process</h2>

We respect your time. Here is exactly what to expect:
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<ul><li>Intro call (30 min, remote) &mdash; Chat with our recruiter about the role and expectations.</li></ul>
<ul><li>Hiring manager screen (45 min, remote) &mdash; Technical background, motivation, and what you're looking for.</li></ul>
<ul><li>Technical round (2.5 hrs, remote) &mdash; Practical coding (AI tools welcome) + system design conversation. Real problems, not LeetCode.</li></ul>
<ul><li>Team meet (2 hrs 15 mins, on-site) &mdash; Come to our SF office to meet your future manager, engineering peers, and product partners for 30-minute 1:1s, concluding with a quick recruiter wrap-up.</li></ul>
</div>
We are ready to move as fast as you are. Total interview time is ~6 hours. We can go from the first intro to offer in two weeks, or pace the rounds to comfortably fit your current work schedule. 

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Life at Mochi</h2>

At Mochi, we believe your best work happens when you feel your best&mdash;so we've designed an environment that fuels your creativity, supports your growth, and makes every day exciting.

 Daily Meals and Espresso Bar - Breakfast, lunch, and dinner every weekday. Our on-site barista keeps the espresso and matcha flowing all day

 Pre-Tax Commuter Perks - Save on transit and parking through pre-tax commuter benefits

 Top-of-Market Compensation - We offer competitive salaries along with generous equity packages so you can share in the success you help create

 Profitable and Rapid Growth - We're scaling fast, with financial discipline and long-term vision. No VC constraints, just sustainable momentum and smart decisions

 High-Impact Work - Help shape the future of digital healthcare. Your work here directly improves lives and scales nationwide

&zwj; World-Class Team - Collaborate with teammates from Tesla, SpaceX, Citadel, Harvard, IIT, and more. We value excellence, humility, and empathy in equal measure

✨ Comprehensive Benefits - 401(k) with match, generous time off, life insurance, and high-quality medical, dental, and vision plans

 Mochi Health Membership &ndash; We cover your monthly subscription fee so you can experience the same care as our patients (medications not included)

 Time to Recharge &ndash; Enjoy unlimited PTO, generous company holidays, and true flexibility. We trust you to take the time you need to rest, reset, and thrive

 Wellness First &ndash; From weekly mindfulness sessions to group workouts and fitness perks, your physical and mental health are top priority

 Team Socials and Community - We make time to connect through regular socials, happy hours, and spontaneous events. Our stocked kitchen doesn't hurt either

 Downtown SF HQ - Our San Francisco office is just steps from BART, Muni, and great food. It's designed for deep work and casual collaboration

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The base salary for this full-time position ranges from $230,000 to $280,000, in addition to equity and benefits. The salary range listed in each job posting represents the minimum and maximum targets for new hire salaries across all locations. Actual compensation within this range is determined by various factors, such as job-related skills, experience, relevant education or training, and location.

#LI-Onsite #LI-AK1<div><h3 class="jobSectionHeader">
Workplace Policy</h3>

Mochi Health is an in-person company based in San Francisco, CA. Our team works together in person five days a week to foster collaboration, innovation, and strong connections. We believe that face-to-face interaction builds a culture of excellence and allows us to deliver the best outcomes for the patients and providers we serve.
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Equal Opportunity</h3>

Mochi Health is an Equal Opportunity Employer. We make all employment decisions based solely on merit. We provide equal employment opportunities to all applicants and employees without discrimination on the basis of race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, disability status, or any other applicable legally protected characteristic. We prohibit any form of discrimination or harassment. This policy applies to all terms and conditions of employment, including hiring.
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Candidate Privacy Notice</h3>

Please review Mochi Health's Candidate Privacy Notice here.
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Accommodations</h3>

Mochi Health complies with the Americans with Disabilities Act (ADA), as amended by the ADA Amendments Act, and all applicable state or local laws. We will reasonably accommodate qualified individuals with a disability during the application process and throughout employment as required by law.

If you need any assistance or accommodations due to a disability, please contact us at hr@joinmochi.com.</div></div>

Sr. Backend Engineer

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