Konstantin Fastov
@konstantinfastov
Senior backend engineer building Rust/Go systems for crypto trading and blockchain infrastructure.
Russian FederationWhat I'm looking for
I’m a senior backend engineer specializing in Rust and Go, focused on crypto trading systems and blockchain infrastructure. I architected and live-operated a ~100k-line Rust funding-arbitrage platform as sole developer, designing venue adaptors, an order-state-machine execution engine, and hedging logic to keep directional risk near-zero by design.
I also bring proven production delivery across Web3 indexing and MEV infrastructure: I was a core engineer at Ankr’s Advanced API indexing 13+ EVM networks and Solana, re-architected JSON-RPC with gRPC fan-out, and shipped token pricing and large-scale indexing. More recently, I delivered 20+ merged PRs to a Solana MEV platform (e.g., Jito bundle tracking and Jupiter lookup-table management), and I build robust, test-driven workflows using walk-forward backtesting and property-based safety checks.
Experience
Work history, roles, and key accomplishments
Trading Systems Engineer
Private Crypto Trading Firm
Aug 2025 - Present (11 months)
Architected and built a ~100k-line Rust funding-arbitrage platform as sole developer, including venue adaptors and an order-state-machine execution engine. Ran the system live on Binance USDM and Hyperliquid and calibrated backtests against live fills.
Rust Backend Engineer
Private Crypto Trading Firm
Feb 2025 - Aug 2025 (6 months)
Delivered 20+ merged PRs to a large Solana MEV/arbitrage platform, improving Jito bundle tracking, Jupiter lookup-table management, RPC connectivity, and bundle-profit calculations. Extended DEX-protocol integrations and fixed production issues in live arbitrage bots.
Independent Open-Source Engineer
OnlyDust
Aug 2024 - Feb 2025 (6 months)
Shipped upstream features to Starknet developer tooling, including SNIP-9 outside-execution support in starknet.js and multicall numeric-input support in starknet-foundry. Contributed fixes across Web3 tooling and built a public World ID state bridge for Linea.
Back End Developer
Ankr
May 2022 - Aug 2024 (2 years 3 months)
Core engineer across 15+ microservices of Ankr Advanced API, indexing 13+ EVM networks and Solana using FoundationDB and PostgreSQL. Re-architected the public JSON-RPC gateway with gRPC fan-out and implemented internal-transaction tracing and pricing/indexing improvements.
Back End Developer
Alfa Algorithms
Aug 2021 - May 2022 (9 months)
Maintained and optimized a web trading platform backend on Node.js, MySQL, and Redis, including an interlayer with a MetaTrader 4 server. Developed Solana governance smart contracts in Rust for the Magic Square store, implementing a validator voting flow.
Back End Developer
Sobix
May 2018 - Aug 2021 (3 years 3 months)
Developed and maintained a WebTrader application for forex brokers, adding trailing stop loss and on-the-fly PnL calculation features. Built an Ethereum indexing module using Node.js and Web3.js and optimized a trading terminal backend using Node.js, MySQL, and Redis, including maintenance of a C++ MetaTrader server plugin.
Education
Degrees, certifications, and relevant coursework
Sevastopol State Technical University
Engineer’s degree, Information Systems and Technologies
Earned an Engineer’s degree in Information Systems and Technologies at Sevastopol State Technical University.
Tech stack
Software and tools used professionally
Availability
Location
Russian FederationAuthorized to work in
Job categories
Skills
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