Java Backend Engineer — Spring Boot & Microservices

Valiant Technologies LLC; Chicago (IL); On-site; USD 120,000 - 170,000; Full time

Job summary

Valiant Technologies LLC in Chicago is seeking an experienced Java Backend Developer to design, build, and maintain scalable server-side applications. You will work with Spring Boot, microservices, REST APIs, and cloud platforms to deliver enterprise-grade software.

The role collaborates with frontend, QA, and DevOps, emphasizes code quality, testing with JUnit/Mockito, and deployment on AWS/Azure/GCP with Docker and Kubernetes. Strong OOP and database skills are required.

Qualifications

• 5+ years of professional Java backend development experience in a scalable enterprise environment.
• Strong expertise in Java, Spring Boot, and microservices architectures.
• Experience building RESTful APIs and integrating with external services.
• Familiarity with database design, JPA/Hibernate, and SQL.
• Proficient with cloud platforms (AWS/Azure/GCP) and containerization (Docker, Kubernetes).

Responsibilities

• Design, develop, and maintain backend applications using Java and Spring Boot.
• Build scalable and secure RESTful APIs for enterprise applications.
• Develop and maintain Microservices-based architecture.
• Implement authentication and authorization with OAuth 2.0 and JWT.
• Collaborate with cross-functional teams in Agile environments.
• Deploy and operate services on cloud platforms with containerization.

Skills

Java

Spring Boot

Microservices

REST APIs

Database design

Cloud platforms

Docker & Kubernetes

JUnit & Mockito

Kafka / messaging

OAuth 2.0 / JWT

Tools

Spring Framework

Hibernate

JPA

Docker

Kubernetes

Job description

Valiant Technologies LLC in Chicago is seeking an experienced Java Backend Developer to design, build, and maintain scalable server-side applications. You will work with Spring Boot, microservices, REST APIs, and cloud platforms to deliver enterprise-grade software.

The role collaborates with frontend, QA, and DevOps, emphasizes code quality, testing with JUnit/Mockito, and deployment on AWS/Azure/GCP with Docker and Kubernetes. Strong OOP and database skills are required.