C++ Developer

We are seeking a C++ Developer to join our Information Technology team at Millennium, a global alternative investment firm.

The Information Technology organization is core to the health and growth of Millennium's business, supporting a flexible, scalable technology environment and advanced proprietary systems across the firm. This team builds and operates the C++ backend services that power Millennium's real-time risk and P&L platform,a distributed system of microservices running on AWS and Kubernetes, processing large-scale financial data with strict latency requirements.

Responsibilities:

• Design, build, and operate high-performance C++ services that compute real-time pricing, risk, and P&L across fixed income and credit instruments.
• Own service reliability end to end, including monitoring, alerting, incident response, and root cause analysis in a live production environment.
• Write thread-safe, exception-safe C++ code for concurrent, near-real-time workloads with hard latency targets.
• Optimize service performance by profiling hotspots, reducing memory allocations, improving cache behavior, and tuning throughput under load.
• Integrate C++ services with upstream and downstream systems via Kafka, Protobuf, and internal APIs.
• Contribute to the CI/CD pipeline, including automated regression testing, A/B deployment, and blue/green release management.
• Promote engineering best practices, including code review, exception safety, RAII patterns, and robust error handling in a multithreaded environment.

Requirements:

• A bachelor's degree from a leading university in computer science, software engineering, or a related discipline; advanced qualifications are a plus.
• Up to five years of professional experience in C++ service or systems development.
• Strong hands-on experience with modern C++ (C++17/C++20), including move semantics, smart pointers, RAII, templates, and constexpr, along with a solid understanding of multithreading and concurrency, including mutexes, atomics, lock-free structures, thread pools, and race condition debugging.
• Experience building and operating long-running backend services, not just libraries or batch jobs.
• Familiarity with service-oriented architecture, message queues such as Kafka, and serialization frameworks such as Protobuf or FlatBuffers.
• Proficiency with Linux, GDB or LLDB, profiling tools such as perf, Valgrind, and AddressSanitizer, and CI/CD pipelines.
• Strong analytical and troubleshooting skills, including comfort diagnosing production issues under pressure, and clear communication skills with the ability to work effectively across teams in a fast-paced environment.
• Experience with reactive or event-driven programming patterns, familiarity with containerized deployments such as Docker and Kubernetes, or exposure to financial services, pricing models, or risk systems is a plus.