Full Stack Engineer at August – New York | Jobyssey

You will design, build, and operate full-stack features spanning backend services that interact with on-chain protocols and frontend interfaces. You will implement reliable indexing and processing pipelines, integrate with DeFi protocols, and contribute to React-based UIs. You will scope, ship, and maintain production services with a focus on reliability and correctness for financial flows.

Responsibilities

Design and implement backend services in Python that interface with on-chain protocols, indexers, and third-party APIs
Own the integration layer between systems and DeFi protocols including vault interactions, liquidity routing, and cross-chain operations
Build and maintain on-chain data indexing and processing pipelines that power product features
Architect and build features from database schema to API layer across prime brokerage and yield platforms
Contribute to frontend features in React and JavaScript when needed
Drive technical decisions on system architecture, API design, and data modeling
Instrument, monitor, and optimize services for reliability at scale

Requirements

5–10 years of professional software engineering experience owning and shipping full-stack products
Strong proficiency in Python with working knowledge of JavaScript
Hands-on experience building and deploying Web3 applications such as DeFi protocols, dApps, or blockchain infrastructure
Comfortable working in React codebases and contributing to frontend features
Experience designing and operating backend systems: REST, GraphQL, microservices, message queues, relational and NoSQL databases
Comfort with blockchain tooling such as Web3.js, Ethers.js, Viem, Solidity, smart contract ABIs, and on-chain data indexing
Strong opinions on code quality, testing, and system design with experience building maintainable systems
Bias toward action and ownership; able to move fast while maintaining correctness

Benefits

Health insurance
Dental insurance
Vision insurance
401(k) plan
Unlimited PTO
Hybrid work (East Coast time zone preferred)
Multiple team offsites and retreats per year
Token budget for AI tools

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