Join a dynamic hybrid role in New York City as an Associate Java/Scala Developer, where you'll help build and optimize high-performance microservices that support real-time trading and execution platforms. This 6+ month opportunity is ideal for a developer with strong Java and Scala experience who enjoys solving complex technical problems in a fast-paced financial services environment.

Responsibilities

• Design and develop scalable microservices using Java and Spring Boot for high-throughput, low-latency systems.
• Collaborate with quants, product partners, and engineering teams to turn execution strategies into reliable production code.
• Improve application speed and stability through performance tuning, concurrency optimization, and memory management.
• Support the development of controls that help protect trading workflows, including pre-trade checks and automated safeguards.
• Build and maintain solutions across the trade lifecycle, from order management through execution, clearing, and settlement.
• Contribute to systems that process market data and support algorithmic trading workflows.
• Participate in testing, automation, and CI/CD practices to help deliver high-quality software.

Skills

• Strong core Java experience, with the ability to work in multithreaded and concurrent application environments.
• Hands-on production experience with Scala and functional programming concepts.
• Experience building or supporting JVM-based microservices using Spring Boot.
• Familiarity with Docker and Kubernetes in modern application environments.
• Knowledge of messaging technologies such as Kafka, Solace, or Aeron.
• Experience working with low-latency data stores and relational or non-relational databases.
• Understanding of software testing practices and automated delivery pipelines.
• Financial services experience and a strong understanding of trading workflows.

Preferred Skills

• Experience with service mesh technologies such as Istio or Linkerd.
• Exposure to Akka, Play, or hybrid Java/Scala application architectures.
• Knowledge of market data structures and regulatory considerations related to trading systems.
• Experience with performance analysis and tuning in latency-sensitive environments.
• Familiarity with Spring Cloud and enterprise integration patterns.

Horizontal Talent is committed to building an inclusive, respectful, and equitable hiring experience for every candidate. We value diverse perspectives and backgrounds, and we encourage talented individuals from all communities to apply.