At 0x, our mission is to eliminate the complexity of accessing tokens and liquidity. We deliver this to web3 builders with a delightfully simple suite of developer APIs that provide faster trading, better prices, and superior user experience.

Founded in 2017, we’ve processed over 60M+ million transactions and $130B+ in trading volume from users trading on Matcha, Coinbase Wallet, Robinhood Wallet, Phantom, Rainbow, DefiLlama, MetaMask, Zerion, Trust Wallet, and many more. Our investors include Greylock Partners, Pantera Capital, and Jump Crypto.

We are looking for a senior software engineer, backend focussed, that has a passion for building DeFi solutions. You have a high degree of integrity, learn and adapt quickly, and seek to make a positive impact on the lives of those who use the systems you build. We hire engineers that have solid fundamentals, are intelligent, have strong learning agility, and are nice people.

0x DEVELOPER PLATFORM TECH STACK

Typescript Node/Express - This is the primary language and framework that this team uses
Rust
Linux
GitHub
AWS Cloud Services (Kubernetes, Kafka, Postgress, Redis, OpenSearch, etc)
Grafana LGTM Observability Stack

Responsibilities - Your Mission

Be an individual contributor on projects as well as lead technical projects of moderate to high complexity
Offer valuable insights as a peer when reviewing designs and performing code reviews
Create high quality, secure, clean code
Launch new features on a regular basis
Improve the way we build and deliver software
Coach and mentor other engineers and generally up-level the team
Empathize with our customers and users

Requirements - Who You Are

A software engineer with 7+ years of experience solving complex distributed computing problems
A generalist who can design and build a system from the ground up which could include:
Relational or Key Value Data stores
Distributed Event driven architectures
Cloud based deployment, preferably AWS
external facing REST/HTTP APIs
Have lead small to medium sized projects as a tech lead with 2-4 other engineers
Can take big problems, research the current state of the art, and apply technology appropriately knowing how to take proper tradeoffs
Are driven by shipping code of high quality with a focus on providing maximum user and business value
Has been part of teams that maintain, business critical, high volume, customer facing applications. Preferably SaaS or API Platforms
Up to date on emerging threats and trends in application security
Has a passion for DeFi and how it can improve peoples lives

Preferred

Has a solid understanding of blockchains (Specifically EVM chains)
Experience working with JSON-RPC APIs to interact with blockchain nodes for tasks like querying blockchain data, sending transactions, or monitoring events
Experience with Web3 libraries (e.g., Web3.js, ethers.js, viem) to build and test blockchain integrations

Benefits

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 and its associated entities 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 (including those who are pregnant or have given birth), sexual orientation, gender, gender expression or identity, age, disability, medical condition, genetic information, military or veteran status, marital status, pregnancy, citizenship, national origin, immigration or citizenship status, political affiliation, or any other basis that is protected by applicable local, state, or federal laws. This includes not making such decisions based on the status itself, as well as any associations, perceptions, and assumptions made regarding these statuses. 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. Our commitment to equal employment opportunity extends to ensuring that all applicants and employees can perform to their fullest potential, including through obtaining reasonable accommodations when necessary.