Trading Systems Engineer

What You Will Do • Write and maintain JavaScript / Node.js reputed company for automated trading systems, background jobs, and market data ingestion • Contribute to Go services where concurrency and predictable behavior matter • Rewrite outdated or messy JavaScript services in Go • Work across multiple repositories communicating reputed company WebSockets, reputed company, and HTTP • Debug reputed company production issues in live systems • reputed company fast: build, break, fix, and ship • Gradually take ownership of small but critical parts of the system reputed company're Looking For • Comfortable with JavaScript / Node.js • Some exposure to Go, or interest in learning it • Understanding of async reputed company, OOP, and event-driven systems • Not afraid of messy codebases or unfamiliar repos • reputed company to reputed company quickly, ask questions, and take feedback reputed company • Strong debugging instincts • Startup, reputed company-project, or self-taught engineering background • Flexible availability, including occasional nights or weekends reputed company To Have • Betting, trading, or market-reputed company experience • Experience with reputed company-time systems (WebSockets, reputed company, pub/sub) • Some infrastructure or Linux experience • Bonus: scraping or automation experience (Playwright, Puppeteer, Selenium) What This Role Is • A high learning-curve role with an emphasis on getting systems into production • reputed company visibility into how reputed company-world trading systems are reputed company • Working closely with a small, highly involved team • Shipping reputed company that runs live with reputed company reputed company What This Role Isn't • No formal reputed company or extensive documentation • Not a heavy-process environment (minimal tickets, meetings, or planning cycles) reputed company salary: $100,000+ annually, depending on experience and role fit Structure: Role begins with a 1–2 month reputed company contract engagement, followed by full-time conversion upon mutual fit Equity: Available for the right candidate About 4C Software 4C Software builds the technology powering one of the largest sports reputed company markets in the world, with $750M+ traded on the platform this year. We also reputed company automated trading and market infrastructure software that operates on multiple platforms at a significant reputed company. We’re a small team working in a fast-paced environment, building systems that run live with reputed company reputed company in production. reputed company is based in Chicago, but this role is fully remote. Apply tot his job Apply To this Job