Principal Java Engineer

GQR; New York (NY); On-site; USD 180,000 - 240,000; Full time

Job summary

GQR is seeking a hands-on Principal Java Engineer to help modernize and scale a critical enterprise platform at a leading global bank. This senior individual contributor role focuses on shaping architecture and writing production code rather than people management.

You’ll define technical direction, accelerate delivery, and solve complex engineering problems across distributed systems. Expect collaboration with product, platform, and business teams and a hands-on approach to code quality and

Qualifications

• 10–15+ years of software engineering with architectural depth.
• Expertise in Java, SQL, REST APIs, streaming APIs.
• Experience with cloud platforms, microservices, containers, and NoSQL.
• Strong understanding of performance, scalability, resiliency, and security.
• Experience with enterprise platforms and complex environments.
• Clear communicator who can influence across teams.
• Exposure to GenAI is a plus.

Responsibilities

• Design and evolve architecture for large-scale, distributed platforms.
• Write production Java code (Spring Boot) with Java 17+.
• Lead modernization, re-architecture, scaling, and greenfield initiatives.
• Build prototypes and reference implementations that set engineering standards.
• Partner with product, platform, and business teams to translate requirements into solutions.
• Present architectural designs and influence platform-wide technical decisions.
• Mentor engineers through technical leadership and best practices.

Skills

Java

SQL

REST APIs

Streaming APIs

Cloud platforms

Microservices

Containers

NoSQL

Performance

GenAI

Communication

Architectural depth

Tools

Spring Boot

Job description

We’re hiring a hands-on Principal Java Engineer to help modernize and scale a critical enterprise platform at a leading global bank. This is a senior individual contributor role for someone who enjoys shaping architecture and writing production code — not managing people.

You’ll play a key role in defining technical direction, accelerating delivery, and solving complex engineering problems across distributed, enterprise-scale systems.

What You’ll Do

• Design and evolve architecture for large-scale, distributed platforms


• Write high-quality, production code in Java (Spring Boot)- at least Java 17


• Lead modernization, re-architecture, scaling, and greenfield initiatives


• Build prototypes and reference implementations that set engineering standards


• Partner with product, platform, and business teams to translate requirements into solutions


• Present architectural designs and influence platform-wide technical decisions


• Mentor engineers through technical leadership and best practices

What We’re Looking For

• 10-15+ years of software engineering experience with strong architectural depth


• Expertise in Java, SQL, REST APIs, streaming APIs


• Experience with cloud platforms, microservices, containers, and NoSQL


• Strong understanding of performance, scalability, resiliency, and security


• Experience with enterprise platforms and complex environments


• Clear communicator who can influence across teams


• Exposure to emerging technologies, including GenAI, is a plus

Why This Role

• Work on complex, mission-critical systems at scale