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Volunteer Java Jobs in Denver, CO (NOW HIRING)

Elevations Credit Union

Application Developer

Broomfield, CO · On-site +1

$77K - $97K/yr

... volunteer time off, and 12 paid holidays * Comprehensive medical, dental, and vision plans with ... Ability to program in at least one programming language, such as C#, Java, PHP, COBOL, or RPG, HTML ...

Lockheed Martin

Ground Software Engineer Sr.

Littleton, CO · On-site

$124K - $164K/yr

... volunteering more than 850,000 hours annually. Here are some of the benefits you can enjoy: • ... Java, C#, Rust, Python, Apache Kafka, Apache ActiveMQ, ELK Stack/OpenSearch, PostgreSQL, Redis ...

Lockheed Martin

Ground Software Engineer Sr.

Littleton, CO · On-site

$124K - $164K/yr

... volunteering more than 850,000 hours annually. Here are some of the benefits you can enjoy: • ... Java, C#, Rust, Python, Apache Kafka, Apache ActiveMQ, ELK Stack/OpenSearch, PostgreSQL, Redis ...

Lockheed Martin

Software Engineer Sr

Boulder, CO · On-site

$128K - $170K/yr

... volunteering more than 850,000 hours annually. Here are some of the benefits you can enjoy: • ... Java, C#, or C++. • Professional experience working in an Agile/Scrum environment. • Final ...

Magnite

Senior Data Engineer, Scala

Broomfield, CO · Hybrid

$450/day

Streaming event processing data pipeline, using Java * Terraform, Docker, Jenkins for CI/CD / infra ... Community Service and Volunteer Events * Company-Matched Charitable Contributions * Wellness Coach ...

Lockheed Martin

Ground Software Engineer

Littleton, CO · On-site

... volunteering more than 850,000 hours annually. Here are some of the benefits you can enjoy: • ... Java, C#, Rust, Python, Apache Kafka, Apache ActiveMQ, ELK Stack/OpenSearch, PostgreSQL, Redis ...

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How much do volunteer java jobs pay per hour?

As of Jul 7, 2026, the average hourly pay for volunteer java in Denver, CO is $58.36, according to ZipRecruiter salary data. Most workers in this role earn between $50.48 and $65.34 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive in the Volunteer Java position, and why are they important?

To thrive as a Volunteer Java developer, you need a solid understanding of Java programming, object-oriented principles, and basic software development practices, often demonstrated through coursework, self-study, or project experience. Familiarity with systems like Git, integrated development environments (IDEs) such as Eclipse or IntelliJ IDEA, and participation in code collaboration platforms like GitHub is advantageous. Excellent communication, teamwork, and time management skills help you contribute effectively to projects and adapt to a volunteer-driven workflow. These skills are crucial for delivering high-quality code, collaborating within diverse teams, and ensuring the success of community-driven or non-profit software initiatives.

What kind of projects might I work on as a Volunteer Java developer?

As a Volunteer Java developer, you'll typically work on software projects that support non-profit organizations, educational programs, or open-source initiatives. Projects might include building and maintaining web applications, automating processes for nonprofits, or contributing to digital tools used by community groups. You may collaborate with other volunteers, designers, and project managers in a remote or hybrid team environment. This experience offers the chance to strengthen your technical skills, expand your professional network, and make a positive impact while learning to navigate real-world software development challenges.

What is a Volunteer Java job?

A Volunteer Java job is an unpaid role where individuals contribute their Java programming skills to support a project, organization, or community initiative. Volunteers may help with coding, debugging, testing, or improving software applications. These roles are typically found in non-profits, open-source projects, or educational initiatives. It’s a great opportunity to gain hands-on experience, expand your portfolio, and contribute to meaningful projects while improving Java skills.

What are the most commonly searched types of Java jobs in Denver, CO? The most popular types of Java jobs in Denver, CO are:
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What cities near Denver, CO are hiring for Volunteer Java jobs? Cities near Denver, CO with the most Volunteer Java job openings:
Volunteer Java jobs near you
Infographic showing various Volunteer Java job openings in Denver, CO as of July 2026, with employment types broken down into 1% Internship, 86% Full Time, 6% Part Time, and 7% Contract. Highlights an 85% Physical, 4% Hybrid, and 11% Remote job distribution, with an average salary of $121,384 per year, or $58.4 per hour.
JAVA Developer (Local candidates only) $70.00

JAVA Developer (Local candidates only) $70.00

Calance US

Denver, CO • On-site

$78/hr

Contractor

Medical, Dental, Vision, Life

This job post has expired 1 day ago. Applications are no longer accepted.

Job description

We are hiring JAVA Developer (Local candidates only) $70.00 for a Contract position in DENVER, CO
CALL US NOW for immediate consideration! Click Apply on Web or Apply Now to view our recruiter s contact info and reach out today, we d love to speak with you!
=======================================================
** We will NOT accept 3rd Party (C2C) Contractors **
=======================================================
JOB DETAILS:
Position:Sr. Java Developer
JOB REF#:44668 - SB26-149-DEV
Duration:12 Months (Contract)
Location:HYBRID - DENVER, CO 80290
Pay Rate:$70.00 (W2 only) or $78.00 (INCORPORATED), (Not accepting 1099 or C2C)
HYBRID: We will NOT consider candidates willing to relocate - LOCAL CANDIDATES ONLY!!
Must work ONSITE every Tuesday / HOURS: MON-FRI 8am - 5:00pm (MST)
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.
RESPONSIBILITIES INCLUDE:
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.
REQUIRED SKILLS/EXPERIENCE:
**MUST interview ONSITE **
5+ years as a Java developer, developing applications in JAVA. Able to comfortably between backend development, lightweight front-end work, cloud-based deployments, and CI/CD workflows.
Experience with Java 21 or recent versions of the Java SDK.
Experience with AWS, GitLab pipelines, Terraform, and AI-assisted coding tools is highly valued.
TECHNICAL EXPERIENCE: 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,
and AI-assisted coding tools, including exploration of Claude Code
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.
DESIRED/PREFERRED SKILLS:
Experience with Thymeleaf for server-side templating.
Hands-on experience with AWS services such as:
Amazon ECS: Amazon API Gateway and 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.
==========================================
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Calance Consultant Benefits Offerings:
- EPO/PPO Medical Plans
- HMO/PPO Dental programs
- Vision - VSP (Vision Plan Summary)
- 401K Retirement vesting program (VOYA)
- Paid Bi-Weekly/Direct Deposit
- Flex Spending Plan
- Voluntary Life, AD&D, STD or LTD plans
Estimated Pay Range:

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