Java Developer (Ref: 18418)

Position: Java Developer (Ref: 18418)

Location: Denver, CO USA, 80203

Salary: DOE

Duration: 1 Years 1 Months 15 Days - Contract

Openings: 1

Deadline: 07/03/2026

Description:

***Local Candidates

***Hybrid

We are seeking an experienced Java Developer 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.

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. The contractor will work with our development team to deliver application enhancements, new features, integrations, and platform improvements.

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.

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.

• 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:

• 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

Required / Desired Skills

• Java / Java 21 / Java SDK Required - 5 Years

• Spring Boot Required - 5 Years

• REST APIs Required - 5 Years

• JSON and API Integration patterns Required - 5 Years

• HTML, CSS and JavaScript Required - 5 Years

• Gitlab / Gitlab CI/CD Required - 5 Years

• Amazon Web Services (AWS) Required - 3 Years

• Thymeleaf Required - 1 Years

• AWS Services (ECS, API Gateway, DynamoDB) Required - 3 Years

• Terraform Required - 2 Years

• IntelliJ IDEA Required - 2 Years

• AI-assisted development tools such as Claude Code, GitHub Copilot, Cursor, or similar tools. Required - 1 Years