> Markdown version of [/jobs/ext/4679947-senior-java-scala-developer](https://www.wearedevelopers.com/jobs/ext/4679947-senior-java-scala-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Java/Scala Developer - **Company:** Rxr Group Inc. The - **Location:** Houston, TX, United States - **Experience:** Expert - **Contract:** Contract - **Skills:** Java (Programming Language), Akka (Toolkit), Algorithmic Trading, Continuous Integration, Data Stores, Data Systems, Middleware, Hazelcast, Java Virtual Machine (JVM), Routing, NoSQL, Redis, SQL Databases, Multithreading, Spring Cloud, Istio, System Availability, Spring-boot, Containerization, Gitlab-ci, Kubernetes, Low Latency, Enterprise Integration, Apache Kafka, Linkerd (Service Mesh), Functional Programming, Docker, Jenkins, Microservices - **Published:** November 12, 2026 - **Apply:** https://www.dice.com/job-detail/acd2b6f0-2579-40b1-8488-3f45bb928087 ## About the Role * Trading Lifecycle: Deep understanding of the full trade lifecycle (Order Management, Execution, Clearing, and Settlement). * Execution Algorithms: Proven track record of building or maintaining algorithmic engines and SOR (Smart Order Routing) systems. * Market Dynamics: Understanding of market data structures (L1/L2/L3 books) and regulatory requirements (MiFID II, SEC Rule 606). * Java Expertise: Expert-level proficiency in Core Java (v17+ preferred), including advanced multi-threading, concurrency patterns, and the Java Memory Model. * Scala Expertise: Hands-on production experience with Scala, including functional programming patterns, immutability, and use of Scala within JVM-based trading systems (e.g., Akka, Play, or hybrid Java/Scala microservices). * Microservices Architecture: Extensive experience with Spring Boot, Spring Cloud, and containerization (Docker/Kubernetes). Familiarity with Service Mesh (Istio/Linkerd) is a plus. * Messaging & Integration: Hands-on experience with high-performance messaging middleware like Apache Kafka, Solace, or Aeron. * Data Systems: Proficiency in low-latency data stores (Redis, Hazelcast) and SQL/NoSQL databases for trade persistence and auditing. * Testing & CI/CD: Commitment to TDD/BDD practices and automated pipeline integration (Jenkins, GitLab CI). ## Description We are seeking a seasoned Senior Java/Scala Developer with a deep specialization in high-throughput trading platforms. You will be responsible for designing and scaling microservices that power our real-time execution algorithms, ensuring ultra-low latency, high availability, and strict adherence to risk and regulatory controls.