Senior Java Developer: Low-Latency Trading Microservices

Sapient Corporation; New York (NY); On-site; USD 190,000 - 270,000; Full time

Job summary

Publicis Sapient is seeking a seasoned Senior Java Developer with deep expertise in high-throughput trading platforms in New York. You will design and scale microservices using Java/Spring Boot to deliver ultra-low latency, highly available real-time execution systems under strict risk controls.

You will collaborate with Quants and Product Managers on execution strategies, optimize performance, and implement Safe Trading governance including pre-trade checks and circuit breakers within the

Qualifications

• Expert-level proficiency in Core Java (v17+).
• Strong experience with Java memory model, multi-threading and concurrency.
• Proven track record in designing distributed microservices for high-frequency trading.

Responsibilities

• Lead design and implementation of distributed microservices in Java/Spring Boot for high-frequency trading.
• Collaborate with Quants and Product Managers to translate execution strategies into production code.
• Perform deep-dive performance tuning, GC optimization, and memory management for sub-millisecond speeds.
• Design and enforce Safe Trading protocols, including pre-trade risk checks and circuit breakers.

Skills

Java

Spring Boot

Microservices

Performance optimization

GC tuning

Tools

Docker

Kubernetes

Istio/Linkerd

Apache Kafka

Redis

Hazelcast

Aeron

Job description

Publicis Sapient is seeking a seasoned Senior Java Developer with deep expertise in high-throughput trading platforms in New York. You will design and scale microservices using Java/Spring Boot to deliver ultra-low latency, highly available real-time execution systems under strict risk controls.

You will collaborate with Quants and Product Managers on execution strategies, optimize performance, and implement Safe Trading governance including pre-trade checks and circuit breakers within the