Job Url: https://www.remoterocketship.com/company/0x-org/jobs/senior-software-engineer-api-united-states-remote

Job Description: 
0x
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0x is a platform that offers a suite of APIs designed to enable decentralized finance (DeFi) trading and token swaps directly within applications. With features such as a Swap API, Gasless API for seamless transactions, and analytics tools for trade insights, 0x streamlines the integration of cryptocurrency trading functionalities. 

It caters to developers looking to monetize their apps while providing access to a wide range of tokens and liquidity from over 130 exchanges. 

Ethereum • Smart Contracts • Blockchain • Cryptography • DeFi


51 - 200 employees


Founded 2016

🔌 API

₿ Crypto

💳 Fintech

Senior Software Engineer - API
2 hours ago

🇺🇸 United States – Remote

💵 $95k - $230k / year

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

AWS

Cloud

ElasticSearch

Grafana

JavaScript

Kafka

Kubernetes

Next.js

Node.js

Redis

Ruby on Rails

Rust

TypeScript

Web3

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📋 Description
• 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.
• Founded in 2017, we’ve processed over 78M+ transactions and $140B+ in trading volume.
• 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.
• Matcha is a DEX aggregator, built by 0x, providing aggregated liquidity and efficient trade execution.
• 0x platform is developers' one-stop shop to build financial products on crypto rails.
• We empower hundreds of teams with essential web3 tools to enable faster trading and superior UX.
• MATCHA API TECH STACK includes TypeScript Node/Express, Rust, AWS Cloud Services, Grafana Observability Stack, Next.js.

🎯 Requirements
• 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.
• 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