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Software Developer - Advanced

3Core Systems, IncQuincy, MA🇺🇸United StatesPosted 31 Jul 2026

Quick Overview

Work Type
Hybrid
Level
Mid Senior

Job Description

3Core Systems, Inc is an SAP and Success Factors Partner with employees located across the United States. Our organization is dedicated to customer and employee satisfaction. We provide High Quality, Cost efficient and Competitive Solutions and Resources.

3Core Systems is looking for Software Developer - Advanced for one of our clients in Quincy, MA (Onsite) with Core Java, Java17, Spring Boot, Kafka.

Job Title: Software Developer - Advanced

Location: Quincy, MA (4days onsite, 1 day remote)

Duration: 12 months contract

Interview Process: 1 st round Video interview, 2 nd round Onsite interview.

Client is looking for a senior backend/server-side engineer who is extremely strong in Core Java fundamentals, particularly multithreading, concurrency, algorithms, and data structures.

Looking for someone who is strong in Core Java concepts like multithreading, Data structure, Algorithms, concurrency, team is using Java 17 but manager is open for someone with strong Java 8 as well, this is for their post-trade application team so if you find someone with Trading application or Capital market background will be huge.

Kafka Very important:

"Most of our integrations are Kafka-driven."

Kafka is effectively their primary event streaming platform.

Candidates should have hands-on experience with:

  • Producers
  • Consumers
  • Topics
  • Event-driven architecture

Responsibilities:

  • Hands-on experience in system design, application development, testing, and operational support of enterprise applications.
  • 7+ years of experience in Java (Java 8 or higher) with strong expertise in Spring Boot 3.
  • 3+ years of experience with Kafka or other event-streaming platforms such as RabbitMQ, Client Kinesis, or Azure Service Bus.
  • 5+ years of experience working with relational databases such as Oracle, SQL Server, MySQL, or PostgreSQL.
  • Experience with distributed caching and in-memory data grid technologies, such as Hazelcast.
  • Proficiency with software development and DevOps toolsets including Git/BitBucket, Jira, and Maven.
  • Experience designing, deploying, and managing scalable applications on Kubernetes.
  • Knowledge of capital markets, with a strong understanding of back-office technology platforms and systems.

Regards,

Recruiting Team

3Core Systems Inc

9101 Burnet Road, Suite 207, Austin, TX 78758

3Core Systems, Inc

Skills

MySQL
Oracle
SQL
SQL Server
Spring
Spring Boot
Azure
Git
Java
Jira
Kafka
Kubernetes
PostgreSQL
RabbitMQ

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