Software Development Contractor (Senior Java Developer)

Toronto 11 days agoContractor External
660 - 710 / hr
Pay rate range - $130/hr. to $140/hr. Hybrid Senior Java Developer – Fixed Income Technology This Isn't Just Another Dev Role — It's Your Chance to Engineer the Core of Global Fixed Income Trading We're talking ultra-low-latency architectures, real-time market data, and automation at scale — all in an environment where milliseconds matter and billions move. You'll work on greenfield and semi-greenfield projects, building dealer-side workflows that redefine how traders quote, price, and execute. From RFQ ingestion and auto-response logic to automated execution, your code will sit at the heart of high-stakes trading desks. Every decision you make will shape performance, resilience, and speed for mission-critical systems. If you thrive on complexity, love solving performance challenges under pressure, and want to collaborate directly with traders and product teams at the sharp edge of financial technology — this is your arena. What You'll Build High-performance backend services for real-time pricing, quoting, and trade execution RFQ lifecycle automation and dealer quoting infrastructure Event-driven architectures integrating with trading UIs (OpenFin) and internal risk engines Scalable, resilient systems optimized for performance, observability, and fault tolerance under production load Robust test frameworks ensuring stability and reliability in mission-critical environments Mentorship and leadership to grow a world-class Fixed Income development team What We're Looking For 5+ years of professional Java development experience Proven experience building backend services for front-office trading systems Deep understanding of front-office workflows and electronic trading platforms Strong grasp of fixed income dealer workflows, quoting, and trade execution Expertise in multi-threading, event-driven systems, and performance tuning Ability to break down complex workflows into maintainable, high-quality solutions Strong communication skills and comfort working in high-stakes, trader-facing environments Exposure to time-series databases, market data integration, and algorithmic workflows Preferred Experience Built or contributed to RFQ engines, quoting platforms, or dealer execution tools Experience with trading protocols (FIX and beyond) and integration with venues like Tradeweb, Bloomberg, MarketAxess, and others Knowledge of U.S. and Canadian Fixed Income market conventions This is more than a job — it's a chance to shape architecture, mentor top talent, and build systems that define how traders operate tomorrow. Ready to build the backbone of next-gen trading?