JAVA SENIOR ENGINEER

SIDRAM TECHNOLOGIES; Denver (CO); On-site; USD 165,000 - 248,000; Full time

Job summary

CO Judicial is seeking a Java Senior Engineer in Denver, CO. Local candidates only for a W2 or C2C contract (12/01/2026–06/30/2027). Hours are 8:00 AM–5:00 PM MST, Monday–Friday, with a 1300 Broadway address.

Requires 15+ years of experience and USC/H4-EAD/Green Card work authorization. The ideal candidate will handle backend development with Java 21+, Spring Boot, REST APIs, and AWS cloud services including ECS, API Gateway, and DynamoDB, while contributing to Terraform/CI/CD and front-end

Qualifications

• 15+ years of professional Java development experience.
• Java SDK 21 or newer.
• Experience with Spring Boot / Spring Framework.
• REST API development and integration.
• Frontend basics: HTML, CSS, JavaScript.
• GitLab version control and CI/CD pipelines.
• AWS cloud products: ECS, API Gateway, DynamoDB.
• Strong troubleshooting and problem-solving skills.
• Ability to work independently in a contractor environment.

Skills

Java

Java 21+

Spring Boot

REST APIs

JSON

HTML/CSS/JS

GitLab

CI/CD

AWS

ECS

API Gateway

DynamoDB

Cloud experience

Troubleshooting

Independent contractor

Tools

Terraform

IntelliJ IDEA

GitLab CI/CD

Job description

LOCAL CANDIDATES ONLY

NOW HIRING: JAVA SENIOR ENGINEER

Client: CO Judicial

Requisition: Java Senior Engineer / Java Developer

Location: Denver, CO

Address: 1300 Broadway, Suite 1100, Denver, CO 80203

Employment: W2 / C2C CONTRACT ONLY

Experience: 15+ YEARS REQUIRED

Quantity: 1 Position

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

Schedule: Monday Friday | 8 Hours/Day

Hours: 8:00 AM 5:00 PM MST

Work Authorization: USC / H4-EAD / Green Card

GC Candidates: Born Before 1985

Local Candidates Required

MUST-HAVE SKILLS

• 15+ years of professional Java development experience
• Java SDK 21 or recent Java versions
• Spring Boot / Spring Framework
• REST API development and integration
• JSON and API integration patterns
• HTML, CSS, JavaScript
• Git / GitLab
• GitLab CI/CD
• AWS application development/deployment/support
• Strong troubleshooting and problem-solving skills
• Ability to work independently in a contractor environment
• Aws / Cloud Experience
• Amazon ECS
• API Gateway
• DynamoDB
• AWS cloud application support
• Cloud deployment and troubleshooting

Preferred Skills

• Thymeleaf
• Terraform / Infrastructure as Code
• IntelliJ IDEA
• GitLab CI/CD pipelines
• Application logs and cloud troubleshooting
• Secure coding practices
• AI-assisted coding tools such as Claude Code, GitHub Copilot, Cursor, etc.

TECHNICAL ENVIRONMENT

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

IDEAL CANDIDATE

Looking for a 15+ year experienced Senior Java Developer who can work across backend development, REST APIs, AWS cloud services, lightweight front-end development, CI/CD pipelines, and modern application development.