Senior Mobile Engineer, 0x
Matcha
APIs for Web3 finance
Open for applications
APIs for Web3 finance
201-500 employees
Open for applications
201-500 employees
Company mission
To create an infrastructure to support the growing emergence of the crypto economy.
Role
Who you are
- If you’re passionate about crypto, love crafting beautiful user experiences, and want to drive large initiatives in a product end-to-end, we’d love to hear from you
- 5+ years of experience in mobile development, with deep expertise in React Native and mobile application architecture
- Proven track record of owning and delivering complex mobile projects — ideally products launched from scratch
- Strong proficiency in TypeScript, React Native CLI & Expo, and native modules (Objective-C, Swift, Java, Kotlin)
- Experience integrating mobile apps with REST and GraphQL APIs
- Familiarity with state management libraries like Zustand, MobX, Redux, or Recoil
- Deep understanding of mobile performance optimization, profiling, and debugging tools
- Experience with mobile CI/CD pipelines and app distribution through the App Store and Google Play
- Excellent communication and collaboration skills in a remote, async-friendly environment
- Comfortable operating autonomously in a fast-paced, product-led environment
- Passion for DeFi, open finance, and building tools that empower users
Desirable
- Experience working with crypto wallets (e.g., MetaMask, WalletConnect, Rabby) and web3 connectivity on mobile
- Strong understanding of mobile security best practices, especially in a crypto context
- Prior experience developing fully native iOS or Android apps (Objective-C, Swift, Kotlin, or Java)
- Experience with product analytics, user telemetry, and experimentation on mobile (e.g., A/B testing, feature flags)
- Familiarity with modern product development tools like GitHub, Slack, Notion, and Linear
What the job involves
- Matcha is a decentralized exchange (DEX) aggregator built by 0x, designed to help users get the best price across numerous major blockchains
- Trusted by hundreds of thousands of traders and facilitating billions in trading volume, Matcha makes crypto trading simple, seamless, and user-focused
- We’re building a greenfield mobile app from scratch — and we’re looking for a Senior Mobile React Native Engineer to join our team to build it
- As part of a small mobile team, you’ll play a foundational role in defining and building the future of Matcha on mobile
- This is a hands-on role where you’ll work closely with product, design, and engineering stakeholders to shape the app’s architecture, own key technical decisions, and drive the implementation of large product features
- Contribute to the end-to-end development of our new React Native mobile app for iOS and Android
- Design and implement app architecture, state management, and mobile-specific infrastructure (e.g., release pipelines, telemetry, CI/CD)
- Collaborate closely with product, design, and backend teams to build seamless, intuitive, and performant DeFi experiences
- Own the mobile user experience and bring complex features (e.g., trading, signing, wallet connectivity) to life
- Maintain a high bar for code quality, testing, and performance through code reviews and technical mentorship
- Stay current with React Native and web3 best practices, tools, and community trends to continuously improve the app
- Influence and steer the direction of engineering culture on Matcha’s Mobile Team
Our take
0x had its beginnings as a decentralized crypto exchange before its founders noticed a problem - while the apps built to facilitate crypto trading were functional, the user experience was usually terrible. 0x changed to become a decentralized exchange protocol instead, and provides a suite of APIs and tools so developers can build decentralized apps capable of competing with the likes of PayPal or Stripe for ease of use and functionality.
0x's product has wide appeal in the Web3 space and has grown a strong customer base including the likes of Coinbase, Robinhood and Polygon, and has a trading volume exceeding $125 billion. Having raised a large amount of capital in a 2022 funding round, it is focusing on expanding its team as well as its product range. While the crypto world is currently subject to intense volatility, 0x is enabling businesses to build apps and products that make the market more navigable. This will go a long way towards improving trust and stability in the sector.
Freddie
Company Specialist at Welcome to the Jungle
Insights
71% employee growth in 12 months
Glassdoor (5)
Company
Funding (2 rounds)
Apr 2022
$70m
SERIES B
Feb 2021
$15m
SERIES A
Total funding: $85m
Company benefits
- Meals: Lunch reimbursements for up to 3 days per week
- Communications expense: We cover wi-fi / cellphone expenses
- Coworking allowance: Coworking of your choice (Non-Bay Area)
- Mental wellbeing: Unlimited therapy sessions with Betterhelp
- Unlimited time-off: Take time away when you need it
- Home-office setup: Set up your dream home office with hardware of your choice
- Wellness benefits: Monthly allowance for gym memberships, massages, etc
- Health beenfits: Fully paid health plan. health allowance for international employees
- Meet IRL: Sponsored events, conferences, and team offsite anywhere in the world
Company HQ
SoMa, San Francisco, CA
Leadership
Will Warren
(Co-Founder & Co-CEO)After finishing a degree in Mechanical Engineering at UC San Diego, they went on to be a Los Almos National Laboratory Researcher. Before co-founding 0x Labs, they were the Technical Advisor at Basic Attention Token, where they advised on Ethereum smart contracts.
Amir Bandeali
(Co-Founder & Co-CEO)After finishing a Finance degree at the University of Illinois, they became a Trader at Chopper Trading and DRW. Initially, they held the position of CTo at 0x Labs, before becoming Co-CEO in 2020.
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