Back-end Engineer

Required skills

Requirements

3+ years of software development experience
Experience with Rust, focusing on async runtimes (Tokio), concurrency, and memory-efficient
Experience with Web3, Blockchain, and decentralized trading infrastructure
Proficiency with low-latency systems (networking, API integration, and high-frequency execution patterns)
Ability to work with arbitrage mechanics, including spread capture, race conditions, and cross-platform inefficiencies
Deep knowledge of execution complexity in fast-moving environments with real-time pricing dynamics
Strong communication skills in both spoken and written English

Startup experience
Experience with trading platforms, trading systems, and blockchain-based execution environments
Deep understanding of prediction markets and DeFi infrastructure
Bachelor’s Degree in Computer Engineering, Computer Science, or equivalent

This is a part-time role (20 hours/week) for a 3-6-month contract
Work directly with a partner to finalize and improve an automated platform that detects and captures pricing inefficiencies across multiple venues (Polymarket, Kalshi, etc.)
Own the mechanical execution edge by ensuring spread detection and trade execution outperform competing systems
Develop and optimize low-latency order book polling, cross-market price normalization, and deterministic opportunity discovery
Build and maintain atomic execution workflows including slippage controls, partial fill handling, and capital lock-up management
Implement infrastructure-level reliability through failure recovery mechanisms and capital allocation safeguards
Handle high-speed market data ingestion and microstructure-level exploitation where latency is measured in milliseconds
Support the lead architect in transitioning early prototypes into a fully automated, production-ready system