Java Full Stack Developer - Java 21, Spring, Microservices

Diverse Lynx, LLC; Chicago (IL); On-site; USD 158,314,000 - 214,189,000; Full time

Job summary

Diverse Lynx LLC is seeking a Java Full Stack Developer to join a Chicago-based contract role. You will design and implement robust backend services using Java 21, Spring, and microservices, while coordinating with frontend teams.

Key responsibilities include API design and testing, performance optimization, and securing cloud deployments with Kubernetes and Azure services. Five or more years of hands-on experience preferred; excellent collaboration skills required.

Qualifications

• Minimum 8+ years of experience in Java full-stack development.
• Expertise in Spring Boot, Java 21, and microservices architecture.
• Strong backend with Postgres, Redis, Kafka, and cloud services.

Responsibilities

• Develop and maintain Java-based microservices.
• Collaborate with frontend and backend teams to deliver integrated solutions.
• Design, implement, test, and document APIs with OpenAPI specifications.
• Ensure scalable, secure, and high-performance software deployment via Kubernetes and cloud services.

Skills

Java Core

Java Advanced

Java 21

Java Design Patterns

Spring Core

Spring Boot

Spring JPA

Spring Security

Persistence

Postgres

Redis Caching

Kafka

Unit Testing

Integration Testing

API Documentation

API Contract

Open API

Performance Testing

Architecture and System Design

Azure Fundamentals

Azure WebPubsub

API Gateway

Blob Storage

Kubernetes

Microservices

Microservices Architecture

Tools

Angular/React

Job description

Diverse Lynx LLC is seeking a Java Full Stack Developer to join a Chicago-based contract role. You will design and implement robust backend services using Java 21, Spring, and microservices, while coordinating with frontend teams.

Key responsibilities include API design and testing, performance optimization, and securing cloud deployments with Kubernetes and Azure services. Five or more years of hands-on experience preferred; excellent collaboration skills required.