Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Open Source Engineer

$235k - $260k

Mendable

Firecrawl is looking for a high‑agency engineer to own our open source work. That starts with the main Firecrawl repo (180k+ stars and counting, top 50 repositories of all time), which should stay the easiest thing in the category to self-host. It extends to the context primitives we’re open sourcing now, starting with anydoc, our document parsing engine. You’ll keep the core repo healthy and growing, build out the primitives, and think about what makes each one spread on its own. This is not a developer relations role. We want an engineer who ships the code, reviews the PRs, and makes the repos better every week. Community instincts help, but engineering quality, shipping velocity, and a track record of work people actually use matter most. Salary Range: $235,000–$260,000 USD/year (SF) / $217,000–$233,000 CAD/year (Toronto) Equity Range: Competitive equity. Details shared during the process. Location: San Francisco, CA (SF HQ) or Toronto, ON (Toronto Hub). On‑site, five days a week. Job Type: Full-Time Experience: 5+ years Work Authorization: Must be authorized to work in the United States or Canada. We’re not able to sponsor US visas right now. For Canada, we’ll consider sponsorship on a case‑by‑case basis through our Toronto Hub. About Firecrawl Firecrawl is the easiest way to turn the web into data AI agents can use. One API call converts any URL into clean, LLM‑ready markdown or structured data. It’s the boring‑hard problem everyone building with LLMs eventually hits, solved. We hit 8 figures in ARR in year one and more than doubled it in year two. We have 180k+ GitHub stars, putting us in the top 50 repositories of all time, and developers, agents, and category‑defining AI companies build on us every day. Growth like this is rare, and we’re just getting started. We’re a small team punching far above our weight, working out of SF HQ and our new Toronto Hub. Everyone here owns a real piece of the product and company, end to end, and runs it themselves. No hiding behind process or headcount. This is a place for people who want to work at the frontier: an AI company building the infrastructure other AI companies run on, not one bolting AI onto an existing product. We move fast, go deep, and are building the tools superintelligence will rely on to gather data from the web. What You’ll Do Own the main Firecrawl repo end to end: triage issues, review PRs, cut releases, write docs Keep the self-host experience easy: clone it, run it, keep it running, no surprises Build out new context primitives, starting with anydoc, our document parsing engine Make the calls on scope and API design for what belongs in a primitive and what doesn’t Think about what makes an open source project spread on its own, and build toward that Ship code and review PRs every week. This is an engineering seat, not a community seat What We’re Looking For A real open source track record: maintaining a popular repo, or landing significant contributions to one You care about the self‑host experience and know what makes a repo easy to clone, run, and keep running Comfortable owning a repo end to end, from triaging issues and reviewing PRs to cutting releases and writing docs You’ve built parsers, crawlers, browser tooling, or developer libraries, and have taste in what belongs in a primitive and what doesn’t You understand how open source turns into adoption and pay attention to why some projects take off High agency. Happy to make calls on scope, API design, and what gets merged Often a maintainer, ex‑founder, early startup engineer, or builder with impressive public work What We’re NOT Looking For Someone looking for a developer relations role. This is an engineering seat first Someone who wants community work to substitute for shipping code Someone who needs a mapped‑out roadmap before they’ll make a scope call Someone who’s used open source but never maintained or owned a repo of real scale A Note On Pace We operate at an absurd level of urgency because the window for what we’re building won’t stay open forever. If that excites you, keep reading. If it doesn’t, no hard feelings, but this role probably isn’t for you. Benefits & Perks Available to all employees Salary that makes sense: $235,000–$260,000 USD/year (SF) / $217,000–$233,000 CAD/year (Toronto), based on impact, not tenure Own a piece: Gain competitive equity in what you’re helping build Generous PTO: 15 days mandatory, anything after 24 days, just ask (holidays excluded). Take the time you need to recharge Parental leave: 12 weeks fully paid, for all parents Wellness stipend: $100 USD/month for the gym, therapy, massages, or whatever keeps you human Learning & Development: Expense up to $1,000 USD/year toward anything that helps you grow professionally Team offsites: A change of scenery, minus the trust falls Sabbatical: 3 paid months off after 4 years, do something fun and new Available to US‑based full‑time employees Full coverage, no red tape: Medical, dental, and vision (100% for employees, 50% for partner and kids). No weird loopholes, just care that works Life & Disability insurance: Employer‑paid basic life and AD&D, short‑term disability, and long‑term disability. Coverage for life's curveballs Virtual care and a health guide: Teladoc for the couch doctor visit, plus Rightway to answer coverage questions and fight billing errors for you Mental health: Talkspace, therapy and psychiatry on your schedule Fertility and family building: Carrot, covering you and your partner EAP: Free confidential counseling, legal and financial consults, and online will prep through Guardian 401(k) plan: Retirement might be a ways off, but future‑you will thank you Pre‑tax benefits: HSA, FSA, and commuter benefits to help your wallet out a bit Supplemental options: Extra life and AD&D, accident, critical illness, hospital indemnity, plus pet, legal, and identity protection through MetLife Available to Canada‑based full‑time employees Full coverage, no red tape: Extended health, dental, and vision through Manulife (Diamond, the top tier), 100% employer‑paid for you, your partner, and your kids Life & Disability insurance: Employer‑paid life, AD&D, short‑term disability, and long‑term disability. Coverage for life's curveballs Virtual care: Dialogue Premium, so you can see a doctor or nurse from your couch, any hour Mental health: Talkspace Elite, therapy and psychiatry on your schedule Fertility and family building: Carrot, covering you and your partner Retirement: Group RRSP through Wealthsimple, so future‑you can thank you Available to SF‑based employees SF HQ perks: Snacks, drinks, team lunches, intense ping pong, and peak startup energy E‑Bike transportation: A loaner electric bike to get you around the city, on us Available to Toronto‑based employees Toronto Hub perks: Snacks, drinks, team lunches, glass‑walled views down University Avenue, and a home base steps from Union Station Transit, covered: A PRESTO card loaded for GO Transit, subway, and streetcar, plus station parking if you drive to the train. Winter‑proof, on us Interview Process Intro Chat (~25 min) A quick conversation to get to know each other before we go deep. We’ll talk about what you’ve been working on, what drew you to Firecrawl, and what you’re looking for in your next role. Time for your questions too. Technical Chat (~45 min) We’ll walk through a repo you’ve maintained and a real problem from ours: a self‑host path that’s gotten fragile, a scope call on what belongs in a primitive, or a PR queue that’s outgrown one reviewer. Come ready to think out loud. We care how you reason about maintainership, not whether you know our codebase yet. Founder Chat (~25 min) Culture, pace, ownership, and how you like to work. Time for your questions too. Paid Work Trial (~40 Hours) Ship something real on one of our open source repos, paid at a contractor rate. It’s the truest signal for both sides. You see what maintaining Firecrawl’s open source work actually feels like, and we see how you operate. Remote‑friendly, and we’ll flex around your current commitments. Decision We move fast after the trial. If you want to own the open source surface of one of the fastest‑growing AI companies in the world, you should join us. #J-18808-Ljbffr

Vacancy posted 3 days ago
Similar jobs that could be interesting for youBased on the Open Source Engineer in San Francisco, CA vacancy
  •  ...Open Source Engineer Firecrawl is looking for a high-agency engineer to own our open source work. That starts with the main Firecrawl repo — 170k+ stars and counting — which should stay the easiest thing in the category to self-host. It extends to the context primitives... 
    Suggested
    Full time
    Temporary work
    For contractors
    Visa sponsorship

    Firecrawl

    San Francisco, CA
    1 day ago
  • $235k - $260k

     ...Open Source Engineer Firecrawl is looking for a high-agency engineer to own our open source work. That starts with the main Firecrawl repo (180k+ stars and counting, top 50 repositories of all time), which should stay the easiest thing in the category to self-host... 
    Suggested
    Full time
    Temporary work
    For contractors
    Remote work
    Work from home
    Visa sponsorship
    Flexible hours

    Firecrawl

    San Francisco, CA
    5 days ago
  • $208k - $312k

     ...About the roleVercel builds and maintains a broad portfolio of open source projects that power the modern web, running in millions of...  ...leverage security roles at the company.We're looking for a security engineer who loves finding a whole class of vulnerability and... 
    Suggested
    Work from home
    Worldwide
    Flexible hours

    Vercel

    San Francisco, CA
    10 hours ago
  •  ...platform for building and orchestrating multi-agent AI systems. The open-source framework is a lean, fast Python library that has grown to 53...  ...that hundreds of thousands of developers build on. This is engineering done in public. Your design decisions, code reviews, and API... 
    Suggested
    Full time

    CrewAI

    San Francisco, CA
    more than 2 months ago
  •  ...trust and recognition within an ever-growing community of data engineers, analysts, scientists, machine learning practitioners, and AI...  ...Developer Relations team is looking for a leader to manage our open source Developer Advocates, deepen our engagement across the Apache... 
    Suggested
    Worldwide

    DataBricks

    San Francisco, CA
    1 day ago
  • $104.6k - $154.5k

     ...feels welcome and can thrive. Our culture of openness, freedom, and belonging makes it a...  ...Since our founding in 1868, we have been an engine for innovation - driving intellectual, economic...  ...Society. BIDS houses UC Berkeley's Open Source Program Office and champions open science... 
    Full time
    Traineeship
    Work at office
    Local area

    UC Davis Health System

    Berkeley, CA
    3 days ago
  •  ...trust and recognition within an ever-growing community of data engineers, analysts, scientists, machine learning practitioners, and AI...  ...you'll be a vital bridge between our engineering teams and the open source community forming around Omnigent, our meta-harness for AI... 
    Worldwide

    DataBricks

    San Francisco, CA
    1 day ago
  • $180k - $230k

     ...delivery teams own quality end-to-end, supported by embedded Quality Engineers. We need a Principal-level technical leader to drive that...  ..., security, or chaos engineering backgroundConference talks, open-source contributions, or other public technical leadership signalsThe... 
    Full time
    Work at office
    3 days per week

    Dealpath

    San Francisco, CA
    10 hours ago
  • University of California, Berkeley's Lightcone team seeks a Product Engineer to advance AI-powered scientific software. You will design and...  ...interfaces, collaborate with researchers, and contribute to open source projects within a dynamic, cross-disciplinary environment. The... 

    University of California

    Berkeley, CA
    2 days ago
  • University of California, Berkeley's Lightcone team seeks Product Engineers to advance AI-assisted scientific research. You will merge research, software engineering, and open source practices to build agentic AI systems, collaborating with senior researchers and industry... 

    University of California, Berkeley

    Berkeley, CA
    5 days ago
  • $117.2k - $223.9k

     ...unparalleled customer experiences. Join our team of talented engineers and help us advance the integration of Salesforce applications...  ...Docker, Kubernetes).Experience with developing or contributing to open source tools.Unleash Your PotentialWhen you join Salesforce, you’ll... 
    Full time

    Salesforce

    San Francisco, CA
    2 days ago
  • $192k - $240k

     ...the tools, resources, and support you need to grow your career.Engineering at BrexEngineering at Brex is about building systems that...  ...incidents. You will also help build and maintain our team’s open source project Substation and have the opportunity to contribute to... 
    Work at office
    Remote work
    Work from home

    Brex

    San Francisco, CA
    2 days ago
  • $197.3k - $313.7k

     ...rich service mesh. Our software stack is based on leading edge open source software like Envoy for data plane and Istio for control plane...  ...mesh. We are looking to add experienced distributed systems engineers who are passionate, hungry for new challenges, can step up and... 
    Full time

    Salesforce

    San Francisco, CA
    10 hours ago
  •  ...Greylock, and Conviction. Join us and help build the platform engineers turn to to ship AI products. At Baseten, we are building...  ...cohesive operating system. While you will leverage the best of the open-source ecosystem, you won't be limited by it. Where off-the-shelf... 
    Full time
    Flexible hours

    Baseten

    San Francisco, CA
    more than 2 months ago
  • $200k

     ...Senior Software Engineer — Lakehouse Systems Location: Mountain View, CA — On-site About Granica Granica builds AI infrastructure...  ..., layout optimization, and data efficiency Contribute to open-source or publish research when appropriate What We’re Looking For... 
    Full time
    Work at office

    Granica

    San Francisco, CA
    26 days ago
  •  ...Spiral builds a fast analytical database for multimodal, multi-rate data streams, on top of the open source Vortex file format. Our users are AI/ML researchers and AI infra engineers developing models in complex domains, such as weather & climate, financial, time-series,... 
    Full time
    Work at office

    Spiral

    San Francisco, CA
    more than 2 months ago
  • $350k

     ...their unique needs and goals.  We are scientists, engineers, and builders who’ve created some of the most...  ...products, including ChatGPT and Character.ai, open-weights models like Mistral, as well as popular open source projects like PyTorch, OpenAI Gym, Fairseq, and... 
    Full time
    Local area
    Immediate start
    Visa sponsorship
    Work visa
    Relocation package
    Flexible hours

    Thinking Machines Lab

    San Francisco, CA
    more than 2 months ago
  • $190k - $230k

     ...with us at Crusoe.About This RoleWe’re seeking a Senior Systems Engineer to play a key role in executing Crusoe’s 2026 Enterprise AI...  ...energy, or high-performance computing environmentsContributions to open-source AI projects or technical thought leadershipBenefits:... 
    Temporary work

    Crusoe

    San Francisco, CA
    1 day ago
  • $152k

    About the roleWe are seeking an experienced Senior Systems Engineer to own our macOS platform and drive endpoint management and device...  ...with enterprise MDM (e.g., Jamf Pro, Kandji, Mosyle) and/or open-source tooling (e.g., Munki, Puppet, Chef).AutoPkg: Production experience... 
    Full time
    Work at office
    Local area
    Remote work
    Shift work

    Chime

    San Francisco, CA
    2 days ago
  • $176k - $220k

     ...Tooling team, where we build foundational systems for Lyft's mobile engineers, enabling them to create stable, scalable, polished, and...  ...customers—other mobile engineers.Watch some of our presentations:Open source contributions:Responsibilities:Work within our Mobile Tooling... 
    Hourly pay
    Work at office
    Local area
    Remote work
    Flexible hours
    3 days per week

    Lyft

    San Francisco, CA
    2 days ago
  •  ...Distributed Systems Engineer @ Dedalus Labs Mission Dedalus Labs is an AI research neolab building infrastructure for AI agents...  ...Experience building distributed systems in industry, research, or open source. Strong engineering judgment around performance,... 
    Work at office
    Visa sponsorship
    Relocation package

    Dedalus Labs

    San Francisco, CA
    2 days ago
  • $217k - $303.9k

     ...passion, and trust, and is home to the most open and authentic conversations on the...  ...Reddit is one of the internet’s largest sources of information. For more information, visit...  ...intersection of infrastructure, product engineering, and user experience - ensuring that... 
    For contractors
    Work experience placement

    Reddit

    San Francisco, CA
    3 days ago
  • $200k - $260k

     ...Fortune-100 customers like Morgan Stanley and Open Table Founder-Market Fit: Our CEO...  ...desire to ship. ~7+ years of software engineering experience comprising of: ~5+ years of...  ...frameworks (Langchain, LlamaIndex, etc) Open-source contributions Experience with high-... 
    Work at office
    Shift work

    Arcade

    San Francisco, CA
    21 hours ago
  • $166k - $225k

     ...use deep data insights to improve their business. Founded by engineers — and customer obsessed — we leap at every opportunity to solve...  ...are some example projects:Apache Spark: Develop the de facto open source standard framework for big data.Data Plane Storage: Provide reliable... 
    Local area
    Worldwide

    DataBricks

    San Francisco, CA
    3 days ago
  • $230k - $288k

     ...Austin, NYC, San Francisco About the Dept  Cloudflare’s engineers build and operate the software that helps power 25+ million...  ...systems or security, widely-read technical blog posts, significant open source contributions, or published architectural patterns that have... 
    Full time
    Temporary work
    Local area
    Flexible hours

    Cloudflare

    San Francisco, CA
    more than 2 months ago
  • $272k - $283k

     ...development role (building applications for the Play Store) . We are seeking a specialized systems engineer focused on the heart of the operating system: AOSP (Android Open Source Project) and the TEE (Trusted Execution Environment) . In this role, you will bridge the... 
    Full time
    Local area
    Immediate start
    Home office

    Payjoy

    San Francisco, CA
    more than 2 months ago
  • $320k - $405k

     ...growing group of committed researchers, engineers, policy experts, and business leaders working...  ...automated UAT, and the deploy path from source control to production Establish...  ...links—visit directly for confirmed position openings. How we're different We believe... 
    Full time
    Work at office
    Local area
    Visa sponsorship
    Flexible hours

    Anthropic

    San Francisco, CA
    more than 2 months ago
  •  ...looking for a highly motivated Mechanical Engineer to join our San Francisco Pilot Plant...  ...scale. Share Your Legos. We collaborate openly, share knowledge, and empower each other...  ...solutions. Join us as we build the future of responsible mineral sourcing and supply!

    Mariana Minerals

    San Francisco, CA
    4 days ago
  • $166k - $204k

     ...Senior Electrical Engineer Opportunity At Inlyte Energy Every day shows the increasing...  ...for low-cost, reliable, and safe energy sources. Solar and wind are now the most economic...  ...preference for Bay Area candidates but are open to a remote position. For this role you will... 
    Temporary work
    For contractors
    Remote work

    Inlyte Energy

    San Francisco, CA
    3 days ago
  •  ...and create.We’re seeking a Principal Machine Learning Systems Engineer (P60) to lead technical directions of GenAI Products & Knowledge...  ..., and reliability practices for ML systems.Contributions to open-source infra or ML systems frameworks.Benefits & PerksAtlassian offers... 
    Work at office
    Local area

    Atlassian

    San Francisco, CA
    4 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Open Source Engineer. Be the first to apply!