Join a high-impact technology team building real-time, high-throughput trading solutions that support execution, performance optimization, and platform reliability. This is an exciting opportunity for a Senior Java/Scala Developer with deep experience in capital markets and a passion for delivering scalable microservices in fast-moving environments.

Responsibilities

• Design, build, and maintain distributed microservices that support real-time trading and execution workflows.
• Develop high-performance solutions for order management, execution, clearing, and settlement processes.
• Partner with quants, product teams, and other stakeholders to translate trading strategies into efficient production code.
• Optimize system performance through tuning, memory management, and concurrency best practices.
• Support risk-aware architecture by helping implement safeguards such as pre-trade checks and circuit breaker logic.
• Contribute to platform scalability, reliability, and low-latency service behavior in a microservices environment.
• Work within modern engineering practices, including automated testing and CI/CD workflows.

Skills

• 8+ years of experience in software engineering with strong Java development expertise.
• Hands-on experience with Scala in production environments.
• Strong understanding of multithreading, concurrency, and the Java Memory Model.
• Experience building microservices with Spring Boot and Spring Cloud.
• Familiarity with containerization technologies such as Docker and Kubernetes.
• Experience with high-performance messaging tools such as Kafka, Solace, or Aeron.
• Knowledge of low-latency data stores such as Redis or Hazelcast, plus SQL and/or NoSQL databases.
• Background in TDD/BDD and working with CI/CD pipelines such as Jenkins or GitLab CI.
• Understanding of trading workflows, execution systems, and market data concepts.

Preferred Skills

• Experience with algorithmic trading or smart order routing systems.
• Familiarity with market data structures such as L1, L2, and L3 books.
• Exposure to regulatory requirements in capital markets, including MiFID II and SEC Rule 606.
• Knowledge of service mesh technologies such as Istio or Linkerd.
• Experience working in fast-paced, collaborative environments with cross-functional teams.

Horizontal Talent is committed to fostering an inclusive workplace where diverse perspectives are valued and every candidate is welcomed with respect. We encourage applicants from all backgrounds to apply and be part of a culture that supports equity, belonging, and opportunity for all.