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Java Developer

Job Location:

Denver, CO - USA

Hourly Salary: USD 55 - 59

Posted: 29 September 2026 (Yesterday)

Application Deadline: 27 December 2026

Vacancies: 1 Vacancy

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.

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 Thyme leaf 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.

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.

Experience with Thyme leaf 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:

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.

Required Experience:

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