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Senior Scala Developer in NYC, NY (Hybrid role)

FSTONE TechnologiesNew York, NY🇺🇸United StatesPosted 14 Sept 2026

Quick Overview

Seniority
Mid Senior
Work mode
Hybrid
Location
New York, NY, United States
Posted
2 days ago
DockerMicroservicesSQLScalaSpringSpring BootService MeshTDDApacheBDDGitLab CIIstioJavaJenkinsKafkaKubernetesRedis

Job Description

Position Summary:

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.

Core Responsibilities:

  • Architecture & Development: Lead the design and implementation of distributed microservices using Java/Spring Boot tailored for high-frequency trading environments.
  • Algorithm Engineering: Collaborate with Quants and Product Managers to translate complex execution strategies into performant, production-ready code.
  • Performance Optimization: Conduct deep-dive performance tuning, optimization, and memory management to maintain sub-millisecond execution speeds.
  • Platform Governance: Design and enforce "Safe Trading" protocols, including pre-trade risk checks and automated circuit breakers within the microservices mesh.

Domain Requirements:

  • Trading Lifecycle: Deep understanding of the full trade lifecycle (Order Management, Execution, Clearing, and Settlement).
  • Execution Algorithms: Proven track record ofbuilding 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).

Technical Qualifications:

  • Java Expertise: Expert-level proficiency in Core Java(v17+ preferred), including advanced multi-threading, concurrency patterns, and the JavaMemory 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).

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