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Weekend Federal Java Developer Jobs in Colorado (NOW HIRING)

Kavaliro

Java Developer

Denver, CO · On-site

$52.50 - $68/hr

Java Developer Contractor About the Role We are seeking an experienced Java Developer Contractor to ... federal, state, or local laws. Kavaliro is committed to the full inclusion of all qualified ...

Cymertek

Java / Spring Developer

Aurora, CO · On-site

$52 - $67.25/hr

Java / Spring Developer LOCATION Aurora, CO 80014 CLEARANCE TS/SCI Full Poly (Please note this ... We are a growing small business and a trusted federal contractor offering full scope consulting ...

Peraton

Mid-level Java Developer

Colorado Springs, CO · On-site

$86K - $138K/yr

Peraton is seeking a Java Developer to help build Web and backend application/services for a ... federal service agencies. Join our high-performing team supporting the Department of Homeland ...

Peraton

Mid-level Java Developer

Colorado Springs, CO

$86K - $138K/yr

Peraton is seeking a Java Developer to help build Web and backend application/services for a ... federal service agencies. Join our high-performing team supporting the Department of Homeland ...

Peraton

Mid-level Java Developer

Colorado Springs, CO · On-site

$86K - $138K/yr

Peraton is seeking a Java Developer to help build Web and backend application/services for a ... federal service agencies. Join our high-performing team supporting the Department of Homeland ...

Cymertek

Java / Spring Developer

Aurora, CO · On-site

$52 - $67.25/hr

Java / Spring Developer LOCATIONAurora, CO 80014 CLEARANCETS/SCI Full Poly (Please note this ... We are a growing small business and a trusted federal contractor offering full scope consulting ...

Northstrat

Java Developer CF

Aurora, CO · On-site

$51.75 - $67/hr

... Federal Government contract labor categories and contract wage rates, relevant prior work ... On June 15th, John only worked 4 hours because he left early for a long weekend. John's IBA was not ...

Northstrat

Java Developer CF

Aurora, CO · On-site

$51.75 - $67/hr

... Federal Government contract labor categories and contract wage rates, relevant prior work ... On June 15th, John only worked 4 hours because he left early for a long weekend. John's IBA was not ...

Cymertek

Java, Scala, Python Developer

Aurora, CO · On-site

Java, Scala, Python Developer LOCATION Aurora, CO 80014 CLEARANCE TS/SCI Full Poly (Please note ... We are a growing small business and a trusted federal contractor offering full scope consulting ...

Cymertek

Java, Scala, Python Developer

Aurora, CO · On-site

Java, Scala, Python Developer LOCATIONAurora, CO 80014 CLEARANCETS/SCI Full Poly (Please note this ... We are a growing small business and a trusted federal contractor offering full scope consulting ...

Cymertek

Software Engineer (Java, MASH, Linux)

Aurora, CO · On-site

$52.75 - $72.25/hr

... Developer, Java Software Engineer, MASH Developer, etc. DEGREE (Level Desired)Bachelor ... We are a growing small business and a trusted federal contractor offering full scope consulting ...

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All JobsWeekend Federal Java Developer JobsWeekend Federal Java Developer Jobs in Colorado

Weekend Federal Java Developer information

What is the difference between Weekend Federal Java Developer vs Part-Time Java Developer?

AspectWeekend Federal Java DeveloperPart-Time Java Developer
CredentialsTypically requires Java certification and federal clearanceUsually requires Java skills, certifications vary
Work EnvironmentFederal agencies, government projects, often on-sitePrivate sector, various industries, on-site or remote
Employer & Industry UsageFederal government, defense, public sectorTech companies, startups, corporate clients
Search & Comparison IntentUnderstanding federal project roles, security clearancePart-time work options, flexible schedules

The Weekend Federal Java Developer typically works on government projects requiring security clearances and federal credentials, often in federal agencies or defense sectors. In contrast, a Part-Time Java Developer may work across various industries with more flexible schedules and fewer security requirements. Both roles involve Java programming but differ mainly in work environment, credentials, and project scope.

What are popular job titles related to Weekend Federal Java Developer jobs in Colorado? For Weekend Federal Java Developer jobs in Colorado, the most frequently searched job titles are:
What job categories do people searching Weekend Federal Java Developer jobs in Colorado look for? The top searched job categories for Weekend Federal Java Developer jobs in Colorado are:
What cities in Colorado are hiring for Weekend Federal Java Developer jobs? Cities in Colorado with the most Weekend Federal Java Developer job openings:
Weekend Federal Java Developer jobs near you
Infographic showing various Weekend Federal Java Developer job openings in Colorado as of June 2026, with employment types broken down into 2% As Needed, 50% Full Time, 47% Part Time, and 1% Contract. Highlights an 95% Physical, 1% Hybrid, and 4% Remote job distribution.
Java Developer

Java Developer

Kavaliro

Denver, CO • On-site

$52.50 - $68/hr

Full-time

Posted 10 days ago

Job description

Job 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
Kavaliro provides Equal Employment Opportunities to all employees and applicants. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws. Kavaliro is committed to the full inclusion of all qualified individuals. In keeping with our commitment, Kavaliro will take the steps to assure that people with disabilities are provided reasonable accommodations. Accordingly, if reasonable accommodation is required to fully participate in the job application or interview process, to perform the essential functions of the position, and/or to receive all other benefits and privileges of employment, please respond to this posting to connect with a company representative.
Job Requirements
Hybrid
By using best practices and optimal employee recruiting strategies, Kavaliro provides employers with employment solutions by providing the most qualified and professional employees, who can staff both project and permanent positions in order to ensure the ongoing success of all types of businesses. We use a streamlined-yet-thorough approach to staffing that saves our clients administrative time, resources and money.

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