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3Core Systems , Inc

Java Backend Developer

3Core Systems , Inc New York, New York, United States

Software Development · 51-200 employees

Oct 21
java Principal (10+ yrs) Contractor United States
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About the role

Develop backend applications and microservices for a new, large-scale deposits platform. Contribute to building the next generation of the platform, with occasional evening production deployments and an on-call rotation.

What they look for

Java Spring Spring Boot Microservices Kafka Distributed Processing AWS GCP Cloud Platforms Backend Application Development Enterprise Platforms React Angular

Requirements

Candidates should be senior-level backend developers with 8–12 years of experience and familiarity with Java, Spring or Spring Boot, microservices, Kafka, and modern cloud environments. AWS is preferred, while GCP or other cloud-agnostic experience is acceptable; candidates must share their screen during interview coding exercises.

Full description

Job Title: Java Developer

Location: NYC / DE / OH

Duration: Long-term contract

Focus: Primarily on backend application development and microservices.

Experience level:

  • Senior-level backend

developers familiar with modern cloud environments and large-scale enterprise platforms.

Candidates are required to share their screen for coding exercises at the time of the interview.

Core Tech Stack

  • Java, Spring/Spring

Boot, Microservices

  • Kafka (For Distributed

Processing)

  • Cloud Platforms (AWS

preferred; multi-cloud/agnostic experience like GCP is acceptable)

Frontend

  • Minimal to none needed

currently. React or Angular is a nice-to-have but not mandatory.

Work Schedule:

  • 5days week from 8AM to

4PM, On-Call-Required every 8weeks plus occasional evening production deployments.

About Project

CCB Deposits Team:

  • Brand new deposits

platform.

  • It's the largest deposit

platform in the country.

  • Actively building the

next generation of the deposits platform.

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