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Java Developer

Abacus


Job Location:

Denver, CO - USA

Monthly Salary: Not provided by the employer
Posted: 24 October 2026 (17 hours ago)
Application Deadline: 21 January 2027
Vacancies: 1 Vacancy

Job Summary

Description
Java Developer Contractor
About the Role

We are seeking an experienced Java Developer Contractor to support the design development and maintenance of web applications backend services and cloud-based solutions. This role is ideal for someone who is comfortable working across the Java/Spring ecosystem building REST APIs integrating with AWS services and contributing to modern CI/CD-driven development workflows.

The right candidate will be hands-on pragmatic and comfortable working independently while collaborating with technical and business stakeholders.

Responsibilities
  • Design develop test and maintain Java-based applications using Java SDK 21.

  • Build and enhance applications using Spring Boot and the broader Spring Framework.

  • Develop and maintain REST APIs and JSON-based integrations.

  • Support smaller web applications using Thymeleaf HTML CSS and JavaScript.

  • Work with AWS-based infrastructure and services including ECS API Gateway and DynamoDB.

  • Contribute to source control and development workflows using GitLab.

  • Build maintain and troubleshoot GitLab CI/CD pipelines.

  • Collaborate with team members on application architecture implementation decisions code reviews and deployment practices.

  • Support infrastructure-as-code efforts especially where Terraform is used.

  • Use IntelliJ IDEA as the primary development environment.

  • Apply sound software engineering practices including maintainable code design testing documentation and operational awareness.

  • Where appropriate leverage AI-assisted coding tools to improve development productivity and code quality.

Required Qualifications
  • Strong professional experience developing applications with Java.

  • Experience with Java 21 or recent versions of the Java SDK.

  • Solid experience with Spring Boot and Spring-based application development.

  • Experience designing building and consuming REST APIs.

  • Strong working knowledge of JSON and API integration patterns.

  • Familiarity with front-end technologies including HTML CSS and JavaScript.

  • Experience using Git-based source control preferably GitLab.

  • Experience working with CI/CD pipelines preferably GitLab CI/CD.

  • Practical experience developing deploying or supporting applications in AWS.

  • Ability to work independently communicate clearly and deliver high-quality work in a contractor capacity.

Preferred Qualifications
  • Experience with Thymeleaf for server-side templating.

  • Hands-on experience with AWS services such as:

    • Amazon ECS

    • Amazon API Gateway

    • Amazon DynamoDB

  • Familiarity with Terraform or other infrastructure-as-code tools.

  • Experience using IntelliJ IDEA in a professional development environment.

  • Familiarity with AI-assisted development tools such as Claude Code GitHub Copilot Cursor or similar tools.

  • Experience troubleshooting cloud deployments application logs build pipelines and environment-related issues.

  • Understanding of secure coding practices and cloud application security concepts.

Technical Environment

Our current technology stack includes:

  • Java SDK 21

  • Spring Boot / Spring Framework

  • Thymeleaf

  • REST APIs

  • JSON

  • HTML / CSS / JavaScript

  • AWS including ECS API Gateway and DynamoDB

  • GitLab repositories

  • GitLab CI/CD pipelines

  • Terraform

  • IntelliJ IDEA

  • AI-assisted coding tools including exploration of Claude Code

Ideal Candidate

The ideal candidate is a strong Java developer who can move comfortably between backend development lightweight front-end work cloud-based deployments and CI/CD workflows. They should be able to understand existing systems quickly contribute clean and maintainable code and work effectively in a modern cloud-oriented development environment.

Experience with AWS GitLab pipelines Terraform and AI-assisted coding tools is highly valued.

Engagement Type

This is a contractor position. The contractor will work with our development team to deliver application enhancements new features integrations and platform improvements.


Estimated Duration
12/01/2026 - 06/30/2027

Schedule
Days
Monday Yes Tuesday Yes Wednesday Yes Thursday Yes Friday Yes Saturday No Sunday No
Hours/Day
8
Time Zone
MST
Shifts Start Time End Time Description Active
Shift 1 8:00 AM 5:00 PM Yes


Location:

Position Location - Hybrid

Address
1300 Broadway Suite 1100 Denver Colorado 80203


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Required Experience:

IC


About Company

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Abacus Insights simplifies healthcare data with best-in-class data management solutions that improve data quality and drive valuable insights. We provide our customers with an intelligent platform that unlocks the value of data and removes the burden of maintaining legacy data managem ... View more

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