Senior Software Engineer - API, Matcha

P2P; London; Remote; USD 95,000 - 230,000; Full time

Job summary

A leading web3 technology firm is seeking a Senior Software Engineer to solve complex distributed computing challenges. This role involves designing, building, and maintaining high-quality software systems. Applicants should have extensive experience in cloud development and be passionate about DeFi solutions. The position offers competitive compensation, remote working opportunities, and numerous benefits.

Benefits

Comprehensive insurance coverage

401k and FSA

Flexible vacation policy

Remote work stipend

Qualifications

• 7+ years of experience in software engineering with complex systems.
• Experience in designing systems from the ground up.
• Proficiency in cloud services, preferably AWS.

Responsibilities

• Lead technical projects and individual contributions.
• Conduct code reviews and provide valuable design insights.
• Deliver high-quality, secure, and maintainable code.

Skills

Distributed computing

Cloud development

APIs design

Monitoring systems

Backend technologies

Leadership

DeFi knowledge

Tools

TypeScript

Rust

AWS

Grafana

ElasticSearch

Job description

Location

Remote

Employment Type

Full time

Location Type

Remote

Department

Engineering

COMPANY

At 0x, our mission is to "Create a Tokenized World Where All Forms of Value Can Flow Freely". 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 78M+ transactions and $140B+ in trading volume from users trading on Matcha, Coinbase Wallet, Robinhood Wallet, Phantom, Rainbow, DefiLlama, MetaMask, Zerion, Zapper, and many more. Our investors include Greylock Partners, Pantera Capital, and Jump Crypto.

When you join 0x, you’ll become part of a veteran team of crypto builders who know the importance of code quality, team cohesion, and a culture of learning.

Matcha 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.

0x 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.

MATCHA API TECH STACK

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:

• TypeScript Node/Express

• Rust

• AWS Cloud Services (Kubernetes, Kafka, Postgress, Redis, OpenSearch, etc)

• Grafana LGTM Observability Stack

• Next.js

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

• Improve the way we build and deliver software

• Consistently ship

• 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

  • Monitoring dashboards, preferably Grafana

• 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 trends in modern backend technology solutions (databases, queues, caching, etc.)

• Has a passion for DeFi and how it can improve peoples lives

PREFERRED

• Has experience working with search engines like ElasticSearch or OpenSearch

• 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.

• Comprehensive insurance (medical/dental/vision/life/disability) for U.S.-based employees — 100% of base plan covered for you and dependents

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

• Monthly mobile phone bill, wellness, and pre-tax transportation expense

• Covered mental health benefits (included professional therapy sessions)

• 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 the SF Financial District for those in the region!

• Flexible 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.