Technology and Engineering | Full-time Principal Java Engineer – Capital Markets Boston, Massachusetts, United States

Publicis Sapient; Boston (MA); On-site; USD 160,000 - 205,000; Full time

Benefits offered by this job

Inclusive workplace

Learning and development opportunities

Competitive compensation and benefits

Work-life balance

Health benefits

Paid leave and holidays

Wellness program

Job summary

Publicis Sapient in Boston is seeking a Java Architect to lead the design, development, and deployment of scalable, microservices-based solutions for high‑frequency trading environments.

You will mentor engineers, drive coding standards and performance optimization, and collaborate with Product, Business Analysts, and stakeholders to translate requirements into robust architectures. Strong Java/Spring, AWS, CI/CD, and low‑latency data skills are essential.

Qualifications

• Expert-level Core Java (v17+), with advanced multi-threading and memory model.
• Extensive Spring Boot/Spring Cloud experience with Docker/Kubernetes.
• Experience with high-performance messaging (Kafka/Solace/Aeron).
• Low-latency data stores: Redis/Hazelcast; SQL/NoSQL databases.

Responsibilities

• Lead and mentor engineers delivering enterprise-scale data solutions.
• Provide hands-on guidance across architecture, design, development, and troubleshooting.
• Drive coding standards, performance optimization, and reliability.
• Conduct code reviews and enforce security standards.
• Lead adoption of Generative AI tools.
• Design and implement distributed microservices in Java/SpringBoot for high-frequency environments.
• Tune performance, memory management, and GC for sub-millisecond speeds.
• Architect and deploy solutions in AWS; ensure security and resilience.
• Collaborate with Product, Analysts, and stakeholders to translate requirements into technical solutions.
• Manage project timelines, deliverables, and resource allocation.
• Ensure alignment with SDLC, DevOps, and CI/CD practices.

Skills

Core Java

Multi-threading

Spring Boot

Spring Cloud

Docker

Kubernetes

Kafka

Solace

Aeron

Redis

Hazelcast

SQL/NoSQL

AWS

Linux/Unix

Technical leadership

AI pair-programmers

CI/CD

Jenkins

GitLab CI

Tools

Jenkins CI

GitLab CI

GitHub Copilot

Claude Code

AWS CLI

Kubernetes

Job description

Job ID: 2026-174318 | 40 Water Street Boston Massachusetts 02109 United States | Full-time

As a Java Architect, you will lead the design, development, and implementation of scalable, high-performance microservices-based solutions. You will work closely with cross-functional teams to deliver cutting-edge digital solutions that drive business value and enhance customer experiences.

Technical Leadership

• Lead and mentor a team of engineers delivering enterprise-scale data solutions
• Provide hands-on guidance across architecture, design, development, and troubleshooting
• Drive best practices in coding standards, performance optimization, and system reliability
• Conduct code reviews and enforce quality and security standards
• Lead the adoption of Generative AI tools

Platform Development

• Architecture & Development: Lead the design and implementation of distributed microservices using Java/SpringBoot tailored for high-frequency trading environments.
• 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.
• Architect and deploy solutions inAWS environment
• Implement scalable, secure, and high-availability solutions

Delivery & Collaboration

• Partner with Product, Business Analysts, and stakeholders to translate requirements into technical solutions
• Manage project timelines, deliverables, and resource allocation
• Ensure alignment with SDLC processes, DevOps practices, and CI/CD pipelines

Domain Requirements:

• Trading Lifecycle: Deep understanding of the full trade lifecycle (Order Management, Execution, Clearing, and Settlement).
• Domain knowledge on what different asset classes are and how PnL / Performance Attribution is done for positions created using such trades
• Direct Experience working on realtime pricing and their performance attribution for providing analytics at low latency to the consumers using realtime data.

Qualifications

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).
• 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.
• Proven experience with AWS Services, Linux/Unix environments
• Ability to lead technical solution design and architecture discussions
• Proficiency in using AI pair-programmers and engineering assistants (specifically GitHub Copilot and/or Claude Code) to optimize workflow efficiency and accelerate problem-solving
• Testing & CI/CD: Commitment to TDD/BDD practices and automated pipeline integration (Jenkins, GitLab CI)

Additional Information

Pay Range: $160,000 - $205,000

The range shown represents a grouping of relevant ranges currently in use at Publicis Sapient. Actual range for this position may differ, depending on location and specific skillset required for the work itself.

Benefits of Working Here:

• An inclusive workplace that promotes diversity and collaboration.
• Access to ongoing learning and development opportunities.
• Competitive compensation and benefits package.
• Flexibility to support work-life balance.
• Comprehensive health benefits for you and your family.
• Generous paid leave and holidays.
• Wellness program and employee assistance.

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]

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.