Java Developer Contract: Cloud, REST APIs & CI/CD

nLeague; Colorado Springs (CO); Hybrid; USD 80,000 - 120,000; Full time

Job summary

nLeague is seeking a Java Developer Contractor to support the design, development, and maintenance of web applications and cloud-based solutions. This role involves working with Java/Spring, building REST APIs, and contributing to CI/CD-driven workflows.

The ideal candidate should have strong Java skills, hands-on experience with AWS services, and the ability to work independently while collaborating with stakeholders.

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.

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.
• Work with AWS-based infrastructure and services, including ECS, API Gateway, and DynamoDB.

Skills

Java development

Spring Boot

REST APIs

CI/CD workflows

AWS services

GitLab

Frontend technologies (HTML, CSS, JavaScript)

Tools

GitLab CI/CD

Terraform

IntelliJ IDEA

Job description

nLeague is seeking a Java Developer Contractor to support the design, development, and maintenance of web applications and cloud-based solutions. This role involves working with Java/Spring, building REST APIs, and contributing to CI/CD-driven workflows.

The ideal candidate should have strong Java skills, hands-on experience with AWS services, and the ability to work independently while collaborating with stakeholders.