Java Developer

Senior Java Engineer / Java Developer

Location: Denver, CO , Hybrid
Work Arrangement: 1 day onsite Tuesday; remote Monday, Wednesday–Friday
Contract: 12/01/2026 – 06/30/2027
Schedule: Monday–Friday, 8:00 AM–5:00 PM MST
Hours: 40 hours/week
Openings: 1
Candidate Requirement: Must be local to Denver/Colorado

Position Overview

We are seeking an experienced Senior Java Engineer / Java Developer to support the design, development, enhancement, and maintenance of web applications, backend services, REST APIs, and cloud-based solutions.

The ideal candidate will have strong hands-on experience with Java 21, Spring Boot, REST APIs, AWS, GitLab CI/CD, and modern software development practices. This position requires someone who can work independently, troubleshoot technical issues, and collaborate effectively with development and business teams.

Responsibilities

• Design, develop, test, and maintain applications using Java 21.
• Develop backend applications using Spring Boot and Spring Framework.
• Build and consume REST APIs and JSON-based integrations.
• Support web applications using Thymeleaf, HTML, CSS, and JavaScript.
• Develop and support applications hosted in AWS.
• Work with ECS, API Gateway, and DynamoDB.
• Manage source code using GitLab.
• Develop and troubleshoot GitLab CI/CD pipelines.
• Participate in code reviews and technical design discussions.
• Support infrastructure-as-code initiatives using Terraform.
• Troubleshoot application, deployment, cloud, and pipeline issues.
• Use IntelliJ IDEA for application development.
• Follow best practices for testing, documentation, maintainability, and security.
• Utilize AI-assisted coding tools where appropriate.

Required Qualifications

• Strong professional Java development experience.
• Experience with Java 21 or recent Java versions.
• Strong Spring Boot / Spring Framework experience.
• Experience developing REST APIs.
• Strong knowledge of JSON and API integration.
• Experience with HTML, CSS, and JavaScript.
• Experience with Git/GitLab.
• Experience with CI/CD, preferably GitLab CI/CD.
• Experience working with AWS.
• Strong communication, troubleshooting, and problem-solving skills.
• Ability to work independently and effectively within a development team.

Preferred Qualifications

• Thymeleaf
• Amazon ECS
• Amazon API Gateway
• Amazon DynamoDB
• Terraform
• IntelliJ IDEA
• Claude Code
• GitHub Copilot
• Cursor
• Cloud deployment troubleshooting
• Application log analysis
• Build and pipeline troubleshooting
• Secure coding practices
• Cloud application security

Technical Stack

Java 21 | Spring Boot | Spring Framework | REST APIs | JSON | Thymeleaf | HTML | CSS | JavaScript | AWS | ECS | API Gateway | DynamoDB | GitLab | GitLab CI/CD | Terraform | IntelliJ IDEA

Ideal Candidate

The ideal candidate is a hands-on Senior Java Developer who can work across backend development, REST APIs, cloud infrastructure, CI/CD, and lightweight frontend technologies.

Candidates should be comfortable joining an existing environment, quickly understanding applications and development workflows, delivering clean and maintainable code, and troubleshooting issues across the application and cloud stack.

Work Arrangement

Hybrid , Local candidates only

• Tuesday: Onsite
• Monday, Wednesday, Thursday & Friday: Remote
• Hours: 8:00 AM–5:00 PM MST
• 40 hours/week

Contractor Engagement

Contract Duration: 12/01/2026 – 06/30/2027

Note: Background verification will be required, including criminal verification, SSN trace, and global monitoring checks.