Senior Software Engineer, Trading Systems

DescriptionHybrid Every other week onsite/5 days in Jersey City, NJOur client seeks a senior software engineer to lead design and development of next-generation electronic trading systems. The role focuses on low-latency, high-throughput, distributed platforms with event-driven architectures. You will collaborate across teams, mentor engineers, and drive performance, scalability, and resilience improvements in a mission-critical environment.Due to client requirements, applicants must be willing and able to work on a w2 basis. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance.Rate: $75.00 to $85.00/hr. w2ResponsibilitiesArchitect and develop distributed, event-driven trading systems optimized for low latency and high throughput.Design and implement asynchronous processing frameworks and resilient messaging services.Collaborate with internal and external teams to deliver robust, end-to-end electronic trading workflows.Lead platform-wide performance tuning and optimization initiatives.Mentor engineers and promote engineering best practices.Support production and non-production environments, including participation in a weekly on-call rotation.Experience Requirements10+ years of hands-on software design and development experience.Expertise in Java, C/C++, Python, and Linux.Deep experience with low-latency messaging systems such as 29West or Kafka.Proficiency with KDB+ or other time-series databases.Background in building scalable, distributed, asynchronous, and event-driven applications.Advanced knowledge of low-latency design patterns and performance optimization techniques.Experience with Capital Markets or Brokerage systems, including order management.Understanding of the FIX protocol and FIX engines.Familiarity with AI developer assist tools such as GitHub Copilot.Experience with CI/CD tools including GitHub, Maven, Jenkins, Artifactory, and uDeploy.Hands-on experience deploying applications to AWS or other cloud platforms.Ability to analyze end-to-end systems to identify performance, scalability, and resilience bottlenecks.Strong analytical, communication, and organizational skills.Ability to manage multiple tasks and work in a collaborative team environment.Self-driven innovation and comfort working with leadership.Willingness to support production systems and participate in on-call rotations, including occasional weekend support.Education Requirements Bachelor’s degree in Computer Science, Engineering, Information Technology, or equivalent.