Software Developer - Advanced at 3Core Systems , Inc
Quincy, TX
—
Jul 30, 2026
Quincy, TX
Nov 9, 2026
What this job asks for AI summary
A 12-month contract role on a post-trade application team in Quincy, MA (hybrid, 4 days onsite), building and maintaining enterprise-grade backend systems in Java. The core focus is event-driven architecture using Kafka, with additional work across Spring Boot services, relational databases, and Kubernetes-deployed infrastructure. Candidates with capital markets or trading application experience are strongly preferred.
Senior level · 7+ years · Boston-Cambridge-Newton, MA-NH · Contract
“or” means any one of them counts — you don't need all of them.
We read this from the posting text with AI. Skim the description below before ruling yourself out.
How this req sits in the market our data
Roughly 420 people in the Boston-Cambridge-Newton, MA-NH area plausibly meet what this posting asks for (software developers). range 310–540
Applicant volume Moderate — A normal amount of company. The rare requirements below are what will separate a shortlisted application from the rest.
Rare in this occupation — lead with these, and say what you built with them.
Most people in this occupation already list these. Still required — just not what gets you shortlisted.
What the occupation pays Median $169,742 (middle half $134,780–$187,781).
Estimated from BLS employment for this occupation and area, per-skill prevalence across our listing corpus, and published wage benchmarks — as of Aug 1, 2026. It is a model, not a headcount.
Why we read it this way (8)
The posting is titled 'Software Developer - Advanced' but the description explicitly frames this as a senior backend/server-side engineer role; seniority is assessed as Senior accordingly.
Java version: the team runs Java 17, but the hiring manager will accept candidates with strong Java 8 experience — the 7+ year requirement covers either.
Kafka is described as the team's primary integration platform and is called out as 'very important'; it is listed as a hard requirement with 3+ years, with RabbitMQ, Amazon Kinesis, and Azure Service Bus noted as acceptable alternatives.
The relational database requirement (5+ years) lists Oracle, SQL Server, MySQL, and PostgreSQL as interchangeable options; Oracle is used as the primary name with the others as alternatives.
Hazelcast (distributed caching / in-memory data grid) is listed in the requirements section but framed with 'such as', indicating the specific tool is interchangeable rather than strictly mandated — treated as preferred.
Capital markets / back-office / post-trade domain knowledge is described as a strong differentiator but is a domain concept rather than a named technology, so it is not emitted as a skill.
No compensation figures were provided in the posting.
Posting is for a contract engagement — the market benchmarks below price full-time roles, so read the comp comparison with that in mind.
Read the full posting
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