Quick Overview
Seniority
Mid Senior
Work mode
On Site
Location
Denver, CO, United States
Posted
18 hours ago
DynamoDBSpringSpring BootAPI GatewayAWSCSSGitGitLab CIHTMLJavaJavaScriptRESTTerraform
Job Description
Role: Java Developer
Location: Denver, CO - Onsite - Only Locals
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
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