Senior Backend Engineer, Exchange Systems

🕒 il y a 17 jours

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Polymarket

Site WebLinkedInTous les Emplois

11 - 50 employés

Fondée en 2020

₿ Crypto

🎲 Jeux d'argent

💸 Finance

Crypto • Gambling • Finance

Polymarket est une plateforme de marché prédictif permettant aux utilisateurs de parier sur les résultats de divers événements, tels que les élections politiques, les concours sportifs et les évolutions des prix des cryptomonnaies. Opérant comme un service de pari décentralisé, elle permet aux participants d'acheter et de vendre des parts sur les résultats d'événements, offrant ainsi une façon unique de s'engager et de spéculer sur des scénarios futurs. Polymarket combine des éléments à la fois des marchés traditionnels et de la technologie blockchain, créant un environnement innovant pour que les utilisateurs puissent faire des prédictions et potentiellement tirer profit de leurs analyses.

Description

• Own the CLOB engine's critical path. Profile matching and orderbook hot paths, map settlement-sensitive state transitions, and drive improvements to latency, throughput, and async engine flow backed by benchmarks and production-grade evidence. • Reduce lock contention without breaking correctness. Debug concurrency issues, design safer queueing and backpressure for orderbooks, and improve the system's ability to handle materially more markets and order flow with lower tail latency. • Build for observability and safety. Instrument improvements with pprof, metrics, logs, and traces. Establish rollback guarantees and narrower critical paths that make production incidents easier to detect, diagnose, and resolve. • Reason about settlement risk. Understand how on-chain transaction effects ripple into off-chain exchange state, and design systems that handle crossed books, ghost fills, stale orders, cancel inconsistencies, and settlement edge cases correctly. • Improve the runtime. Reduce GC pressure, optimize CPU and memory allocation behavior, and push Go runtime performance to meet the demands of a high-throughput exchange at scale. • Debug production incidents. Own latency, correctness, and settlement-state incidents end-to-end, and drive follow-through that leaves the system measurably better each time.

🎯 Exigences

• Production experience building low-latency backend systems at scale • Strong concurrency skills and a track record debugging lock contention, race conditions, and async correctness issues • Fluency in production Go and Rust • Deep observability experience: pprof, metrics, logs, and distributed traces • Experience with exchange systems that interact with EVM or blockchain settlement layers • Strong computer science fundamentals: algorithms, data structures, concurrency, and profiling • (Plus) Direct experience with matching engines or exchange infrastructure • (Plus) EVM transaction lifecycle experience: confirmations, reorgs, and how on-chain state affects off-chain systems • (Plus) Go runtime and GC tuning experience • (Plus) Experience with Redis, PostgreSQL, gRPC, and Protobuf • (Plus) Kubernetes and AWS production operations experience

🏖️ Avantages

• Competitive salary & equity • Unlimited PTO • Full Health, Vision, & Dental coverage • 401k match • Hardware setup: new MacBook Pro, big display, & accessories