The Custom Group of Companies
Java Developer
New York, New York, US
Role snapshot
The Custom Group of Companies is hiring a Java Developer on a full-time basis. This is a role based in New York, New York, US.
- Company
- The Custom Group of Companies
- Location
- New York, New York, US
- Job type
- Full-time
- Posted
- Nov 5, 2026
Who this role suits
The listing does not state a required experience level here. Read the requirements in the description below and apply if they match your background.
How to prepare your application
- Match your résumé to the requirements in the description, using the same wording where it is honest to do so.
- Prepare a short example for each requirement you meet, and be ready to explain any you only partly meet.
- Read what The Custom Group of Companies publishes about its product or team, so you can say clearly why this role and this company.
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About the role
US Citizen or Green Card holders only/ No Corp to Corp or 3rd party agencies
Java Microservices Developer – AWS
Position Overview
We are seeking an experienced Java Developer to support and enhance our existing desktop applications and backend microservices within our cloud environment. This position will also play a key role in the Post Trade and Custody (PT&C) implementation as part of the Markets Transformation Program (MTP).
Key Responsibilities:
- Develop, maintain, and support Java-based applications and backend microservices.
- Support our existing applications and associated cloud services.
- Participate in the implementation and ongoing support of Post Trade and Custody (PT&C) systems.
- Troubleshoot application issues, optimize performance, and ensure system reliability.
- Collaborate with development teams on initiatives supporting the Markets Transformation Program.
Required Qualifications:
- Strong hands-on experience with Java and J2EE .
- Experience developing applications using Spring Framework / Spring Boot .
- Solid understanding of microservices architecture and REST APIs .
- Hands-on experience with AWS cloud technologies .
- Strong troubleshooting, debugging, and problem-solving skills.
Preferred Qualifications:
- Experience in financial services, capital markets, or post-trade processing systems.