Senior Java Engineer

JMS Technical Solutions; New York (NY); On-site; USD 130,000 - 135,000; Full time

Job summary

JMS Technical Solutions in New York, NY is seeking a Senior Java Engineer to join onsite for a full-time/direct-hire role. The position focuses on evolving and stabilizing a high-impact Case Authorization and Data Reconciliation platform.

You will design and implement robust Java backend services, leverage Spring Boot, and collaborate with Data Engineering to ensure data integrity across systems. Authorized to work in the U.S. is required.

Qualifications

• Strong hands-on experience in Java (8+/11+/17+) and backend development.
• Experience with Spring Boot/Spring Framework for building scalable microservices.
• Experience designing and consuming RESTful APIs.

Responsibilities

• Own and evolve the Case Authorization backend platform and its workflows.
• Design and implement robust Java microservices and backend services.
• Collaborate with Data Engineering to ensure data consistency across APIs and downstream systems.
• Build and maintain data reconciliation logic to validate data across systems.
• Analyze and optimize performance of services and integrations in production.
• Implement reliable error handling, logging, and observability frameworks.
• Partner with business stakeholders to translate requirements into scalable technical solutions.
• Contribute to system design, architecture decisions, and best practices.

Skills

Java

Spring Boot

REST APIs

Distributed systems

Databases

Performance tuning

Debugging

Stakeholder communication

Job description

Our client in New York, NY, is seeking a Senior Java Engineer to join their team!

This is an onsite/full-time/direct-hire position

Salary range based on experience: $130K-$135K

Role Overview

We are seeking a Senior Java Engineer to play a critical role in evolving and stabilizing a high-impact Case Authorization and Data Reconciliation platform within a leading financial services organization.

This role goes beyond traditional backend development—you will act as an engineering owner, driving business-critical logic, improving system reliability, and partnering closely with stakeholders to deliver scalable, production-grade solutions.

Key Responsibilities

• Own and enhance the Case Authorization platform, enabling intelligent prioritization of business workflows
• Design and implement robust backend services using Java and modern frameworks
• Collaborate with Data Engineering teams to ensure end-to-end data consistency from APIs to downstream systems
• Build and maintain reconciliation logic to validate data accuracy across systems
• Analyze and optimize performance bottlenecks in existing services and integrations
• Develop reliable integrations with REST APIs and external data sources
• Implement production-grade error handling, logging, and observability frameworks
• Partner directly with business stakeholders to translate requirements into scalable technical solutions
• Contribute to system design, architecture decisions, and best practices

Required Skills & Experience

• Strong hands-on experience in Java (8+/11+/17+) and backend development
• Expertise in Spring Boot / Spring Framework for building scalable microservices
• Experience designing and consuming RESTful APIs
• Solid understanding of distributed systems and system design principles
• Experience working with data-intensive applications and backend services supporting data pipelines
• Strong debugging and performance tuning skills in production environments
• Familiarity with SQL/NoSQL databases
• Experience with error handling, monitoring, and logging frameworks
• Ability to work in cross-functional teams and communicate with business stakeholders

What We're Looking For

• Ownership mindset: Ability to take ambiguous requirements and drive them to completion
• Production maturity: Experience building systems that scale and handle real-world edge cases
• Problem-solving ability: Strong analytical skills to diagnose and resolve complex issues
• Business acumen: Ability to understand and translate business needs into technical solutions
• Consultative approach: Comfortable working directly with stakeholders and influencing decisions
• Or tailor this JD specifically for US hiring/visa/salary bands

Applicants must be authorized to work in the U.S.

We are an equal-opportunity employer. We do not discriminate in hiring or employment against any individual based on race, color, gender, national origin, ancestry, religion, physical or mental disability, age, veteran status, sexual orientation, gender identity or expression, marital status, pregnancy, citizenship, or any other factor protected by anti-discrimination laws.