Prediction Markets Developer
I design and build Rust / TypeScript trading bots and backend infrastructure for prediction markets like Polymarket, with CLOB integrations, live PnL engines, and production-grade risk controls.
I'm Roswelly, a Rust smart contract and backend developer specializing in prediction markets. I build Polymarket-style trading bots on Polygon, CLOB integrations, market-analysis pipelines, position and PnL engines, and strict risk controls - everything you need to run a prediction market strategy in production.
What I build for prediction markets
Polymarket-style trading bots with both interactive and fully automated modes, including market scanning, order placement and cancellation, and continuous PnL attribution across markets.
CLOB integrations on Polygon and EVM-compatible venues, with a focus on correct order-state reconciliation, latency-aware order routing, and clean handling of partial fills and cancellations.
Risk engines enforcing per-market exposure limits, max slippage, daily loss caps, and a hard kill-switch - so a misbehaving signal never wipes an account.
Stack
Rust for performance-sensitive components (market data, order routing), TypeScript / Node.js for orchestration, Redis for hot state and rate limiting, MongoDB / PostgreSQL for trade history, and web3.js / ethers.js for signed transaction submission.
Observability is first-class: every order, fill, and risk event is logged with structured metadata so you can replay a bad session and understand exactly what happened.
Related case studies
Frequently asked questions
Can you build a Polymarket trading bot?
Yes. I build Polymarket trading bots covering market data, order management, fills reconciliation, PnL and risk. Both fully automated and interactive (trader-in-the-loop) modes are supported.
Do you implement market-making strategies on prediction markets?
Yes. I can implement inventory-aware market makers with dynamic quoting around fair value, skew and adverse-selection protection, and integration with your research pipeline for fair-value updates.
Which venues beyond Polymarket can you integrate with?
Any EVM-compatible CLOB or AMM-based prediction market. I design integrations around a common trading abstraction so new venues are cheap to add.
Other specializations
Hire a Rust smart contract & prediction markets developer specialist
Planning a prediction markets developer project? Let's talk architecture, Rust smart contracts, and the low-latency backend to run it in production.
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