Senior Associate Java Developer

Publicis Groupe; New York (NY); On-site; USD 180,000 - 260,000; Full time

Job summary

Publicis Sapient in New York is seeking a seasoned Senior Java Developer with a deep specialization in high-throughput trading platforms. You will design and scale microservices powering real-time execution, ensuring ultra-low latency, high availability, and strict risk controls.

You will lead distributed systems in Java/SpringBoot, optimize performance, and collaborate with quants, traders and product teams to translate strategies into production-ready code.

Qualifications

• Expert Java developer with experience in high-throughput trading systems.
• Strong knowledge of multi-threading, memory model, and GC tuning.
• Experience with microservices in finance and regulatory controls.

Responsibilities

• Lead design and implementation of distributed microservices for high-frequency trading environments.
• Collaborate with Quants and Product Managers to translate execution strategies into production-ready code.
• Drive performance optimizations, including GC tuning and memory management to maintain ultra-low latency.

Skills

Java concurrency

Performance optimization

High-frequency trading domain

Tools

Spring Boot

Spring Cloud

Docker

Kubernetes

Istio/Linkerd

Apache Kafka

Solace

Aeron

Redis

Hazelcast

SQL/NoSQL databases

Job description

Company description

Publicis Sapient is a digital transformation partner helping established organizations get to their future, digitally-enabled state, both in the way they work and the way they serve their customers. We help unlock value through a start-up mindset and modern methods, fusing strategy, consulting and customer experience with agile engineering and problem-solving creativity. United by our core values and our purpose of helping people thrive in the brave pursuit of next, our 20,000+ people in 53 offices around the world combine experience across technology, data sciences, consulting and customer obsession to accelerate our clients' businesses through designing the products and services their customers truly value.

Overview

We are seeking a seasoned Senior Java 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/SpringBoot 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, GC 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.

Qualifications

Domain Requirements

• 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).

Technical Qualifications

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

Additional information

As part of our dedication to an inclusive and diverse workforce, Publicis Sapient is committed to Equal Employment Opportunity without regard for race, color, national origin, ethnicity, gender, protected veteran status, disability, sexual orientation, gender identity, or religion. We are also committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If you need assistance or an accommodation due to a disability, you may contact us at [e-mail] or you may call us at [phone].