Technology and Engineering | Principal Java Engineer – Capital Markets Boston, Massachusetts

Job : | 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/Spring Boot 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, Dev Ops 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.

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/No
  
  SQL 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 Git Hub 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, Git Lab CI)

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

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,…