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Senior Software Engineer, API Products

Worldwide flag Worldwide


Posted 12 days ago

Job Type

Full Time


$95k - $230k






Country of Employment



  • Contribute to creating a tokenized world where value flows freely through innovative tech solutions and open-source software at 0x Labs

  • Lead the development of high-throughput APIs and dynamic web front ends with exposure to blockchain applications and web3 technologies

  • Opportunities for professional growth include working with a diverse and experienced team, engaging in cross-functional collaboration, and exposure to cutting-edge tech like Rust, Ethers, and Viem



At , our is to create a tokenized world where all value can flow freely. We’re a mission-driven and diverse team composed of world class talent from Coinbase, Google, Meta, Bitso, Citi, Spotify and other top companies. We are a remote-first and fully distributed company, with team members located across all of the continents besides Antarctica. As early pioneers in the space, we’ve made significant technical contributions to various Ethereum standards over the years; fun fact - our team helped establish the NFT token standard (ERC721).

In joining us, you'll take part in transforming the way that value is exchanged on a global scale. We're passionate about open-source software and decentralized technology's potential to act as an equalizing force in the world, and our technology is deployed by a wide array of projects at the forefront of internet and economic advancement.

 is a DEX aggregator, built by 0x. With over 5 million tokens indexed across 9 blockchains, the decentralized exchange provides aggregated liquidity from +100 sources and the most efficient trade execution through smart routing. Matcha offers swaps, limit orders and cross chain trades, having enabled over $62B volume and 3.5M+ trades as the first consumer-facing product by the 0x team.

platform is developers' one-stop shop to build financial products on crypto rails. 0x empowers hundreds of teams and developers with essential web3 tools to enable faster trading, better prices and superior UX. Our suite of APIs has processed over 60M+ million transactions and $133B+ in volume from more than 6 million users trading on apps like Coinbase Wallet, Robinhood Wallet, Metamask, Zerion, Zapper, and more.


We care far more that someone has solid fundamentals, is generally intelligent, has strong learning agility, and is an overall good human.  That said, we’re excited about the rapidly evolving tech we’re building on. It includes:

  • Web & server-side TypeScript

  • React with Next.js

  • Rust for performance-critical code

  • Ethers, Viem, and custom Web3 tooling

  • Kong API Gateway to a Kubernetes cluster


  • Create trustworthy user experiences by building, testing, and shipping features that are simple, intuitive, performant, and reliable

  • Own entire features from specification to shipping

  • Work effectively with a high degree of autonomy, within a collaboratively minded team

  • Keep abreast of the nascent and rapidly evolving blockchain space, and introduce innovative tools and products

  • Collaborate cross-functionally with other teams, including engineering (internal and external), design, research, data science, product management, executive leadership, and recruiting

  • Be a steward and influencer of our engineering culture


    • 5 years+ as Software Engineer

    • Experience with modern Front End frameworks + web fundamentals

    • Experience creating and maintaining high-throughput APIs

    • Previous exposure to web3/blockchain applications

    • Passion for the benefits of decentralization and the web3 world

    • Exhibit our : do the right thing, consistently ship, and focus on long-term impact

    • Bachelor's degree or equivalent experience


    • Familiarity with API Security & DevOps Services

    • Experience developing dynamic, content-rich web front ends

    • EVM experience


  • The base salary range for this position is $95,000 - $230,000 + equity + ZRX tokens + benefits. Within the range, individual pay is determined by job-related skills, experience, location, business needs, and candidate preferences between the different compensation elements.

    Benefits include:

    • Comprehensive insurance (medical/dental/vision/life/disability) — 100% covered for you and dependents for U.S.-based-employees. Benefits are country-specific and may vary.

    • 401k, HSA, and FSA for U.S.-based employees

    • Monthly stipends for wifi, wellness, and pre-tax transportation expense

    • Covered mental health benefits (included professional therapy sessions)

    • Flexible hours, liberal work-from-home policy, and a supportive remote environment

    • Lunch reimbursement for all employees across the globe!

    • Stipend for your ideal remote / WFH set-up: laptop, headphones, and any other work gear you may need

    • 12-week paid parental leave

    • Great office conveniently located in Downtown San Francisco

    • Unlimited vacation: Take time when you need it (and we really mean it)

    • Multiple annual in-person team meet-ups around the globe

0x Labs and its associated entities (0x) are dedicated to fostering diversity, inclusion, and belonging in its teams and workforce, and are proud to be equal opportunity employers. 0x does not make employment or hiring decisions on the basis of race, color, creed, religion, sex, sexual orientation, gender, gender expression or identity, age, disability, veteran status, marital status, pregnancy, citizenship, national origin, or any other basis that is protected by applicable local, state, or federal laws. 0x will also consider qualified applicants with arrest and conviction records in a way that is consistent with San Francisco’s Fair Chance Ordinance and similar local laws.