AI SummaryVerified by Aipplify AI
The vacancy is well-defined in terms of tasks and requirements but lacks compensation details and company information.
AI quality score5.3 / 10
Check Match — Just drop your CV
See your fit for Senior Full-Stack TypeScript Engineer in seconds.
Overview
We are looking for a strong Senior Full-Stack Developer to work on a product at the intersection of Web3, fintech, and trading, capable of making technical decisions and delivering functional tasks from idea to production.
Responsibilities
- •Develop and enhance the product using TypeScript / React / Next.js
- •Work on both frontend and backend
- •Develop interfaces with a large amount of real-time data: prices, positions, orders, and other constantly updating data
- •Work with WebSockets to correctly handle connection drops and reconnections
- •Design data structures and work with PostgreSQL
- •Integrate blockchain, wallets, and external services
- •Work with the financial logic of the product, ensuring operation correctness and data consistency
- •Develop a full mobile web interface
- •Connect and maintain external APIs and services
- •Use Claude Code as part of the daily development workflow.
Conditions
- •Strong plus: Experience developing prediction markets, especially Polymarket, Kalshi, or similar products
- •Experience with trading systems and order book / exchange order book
- •Understanding of market and limit orders, partial fills, slippage
- •Experience with embedded wallets: Magic, Privy, Web3Auth, Para
- •Experience with relayers, meta-transactions, gas sponsorship
- •Knowledge of ERC-4337 / Account Abstraction
- •Experience reconciling data from your own database with blockchain
- •Experience with cross-chain bridges
- •Experience with Polygon
- •Experience with Supabase.
Requirements
- •5+ years of commercial development experience
- •You continue to write code independently, not just manage a team
- •Proficient in TypeScript for both frontend and backend
- •Strong experience with React and Next.js: App Router, Server Components, SSR
- •Experience with PostgreSQL: independent table design, relationships, and query writing
- •Experience launching several products or large parts of a product to real users and taking end-to-end responsibility for them
- •Experience in fintech, crypto, trading, payments, wallets, or other systems involving real financial operations
- •Understanding of financial system specifics: protection against duplicate operations, correct error handling, and the impossibility of simply "rolling back" part of blockchain transactions
- •Experience with WebSockets / streaming / real-time data
- •Experience developing applications with a high volume of constantly updating data and understanding of interface performance
- •Understanding of state management and data caching on the client: React Query or similar
- •Experience with blockchain integrations: wallets, transaction signing, reading on-chain data
- •Experience with viem or ethers
- •Experience creating user-friendly interfaces for mobile devices: touch interface, mobile Safari, keyboard, safe areas, and other mobile device specifics
- •Ability to work independently with a large number of external integrations and understand incomplete or poor documentation
- •Confident use of Claude Code in real development: working with existing codebases, implementing functionality, refactoring, debugging, working with Git.
Loading similar jobs...