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Software Developer - Advanced

3Core Systems — Analytics and tech consulting

Quincy, Massachusetts, United States Mid Posted Jul 31, 2026
JavaSQLSpring BootCloudBackend

About the role

Job Title: Software Developer - Advanced Location: Quincy, MA (Hybrid - onsite for 4 days a week) Duration: 12 months contract Interview Process: 2 rounds, 1st round will 45-60 mins virtual followed by final round in-person interview for an hour. 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.

What the index says about this role

  • First seen by JobLarper — Aug 2, 2026, 6 days ago. Older postings collect hundreds of applicants — a tailored résumé matters more the longer a role has been live.
  • No pay range in our index for this listing. Across 1,685 indexed Software Engineer roles in US that do publish one, the middle half sits between $185k and $285k, median $225k — JobLarper's read of the market, not a figure from 3Core Systems.
  • What Software Engineer roles ask for — across 10,230 indexed openings: REST/APIs (46%), Backend (42%), Cloud (38%), Python (38%), Go (25%). This posting names Backend, Cloud.
  • 3Core Systems is hiring actively — 18 open roles indexed.

Derived from the 27,000 roles JobLarper indexes daily from official company boards — not from the job description above.

⚡ JobLarper watched this role appear on 3Core Systems's official board on Jul 31, 2026. Sign up free to get alerted minutes after roles like this go live, and tailor your real résumé to the exact description — nothing invented.

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