Sr. Java Full Stack Engineer

Description Remote Our client seeks a Sr. Java Full Stack Engineer to lead the design and development of next-generation electronic trading systems within a high-performing Trade Management Engineering group. You will architect distributed, event-driven platforms optimized for low latency and high throughput, collaborate across internal and external teams, mentor engineers, and drive platform performance, scalability, and resilience. You will support production and non-production environments and participate in an on-call rotation. 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: $70.00 to $80.00/hr. w2 Responsibilities Architect 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 trading workflows. Lead performance tuning and optimization efforts across the platform. Mentor junior engineers and promote engineering best practices. Support production and non-production environments, including participation in a weekly on-call rotation. Experience Requirements 10+ years of hands-on software design and development experience. Expertise in Java, Python, and Linux. Deep experience with low latency messaging systems such as 29West or Kafka. Proficiency in 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, especially order management. Solid understanding of the FIX protocol and FIX engines. Experience with AI developer assist tools such as GitHub Copilot. Experience with CI/CD tools such as GitHub, Maven, Jenkins, Artifactory, and uDeploy. Hands-on experience deploying applications to AWS or other cloud platforms. Strong analytical, communication, and organizational skills. Ability to manage multiple tasks and thrive in a collaborative team environment. 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.