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Java Backend Developer

Jobs for HumanityO'Fallon, MO🇺🇸United StatesPosted Apr 30, 2026

Why This Role Stands Out

This on-site Java Backend Developer role offers a fantastic opportunity to build impactful, real-time systems with Kafka and the Spring Framework, fostering significant career growth within a reputable company. You'll thrive here if you possess strong Java, Spring Boot, and Kafka expertise, and enjoy collaborating with talented teams to deliver scalable solutions. Apply now to advance your backend development career!

Quick Overview

Seniority
Mid Senior
Employment type
Full Time
Work mode
On Site
Location
O'Fallon, MO, United States
Posted
5 months ago
DockerGCPMicroservicesSQLSpringSpring BootAWSScrumAgileAzureGitJUnitJavaKafkaKubernetesRESTCI/CDMockito

Job Description

Key Responsibilities:

  • Design, develop, and maintain backend applications using Java 8 and the Spring Framework.
  • Build real-time, event-driven systems using Kafka.
  • Collaborate with cross-functional teams to deliver scalable solutions.
  • Ensure code quality through reviews and best practices.
  • Troubleshoot issues across development, testing, and production environments.
  • Continuously improve development processes and systems.

Mandatory Skills:

  • Strong experience in Java 8 and OOP concepts.
  • Hands-on experience with Spring Boot and Spring MVC.
  • Expertise in Kafka (real-time streaming and pipelines).
  • Solid understanding of REST APIs and Microservices.
  • Experience with SQL and NoSQL databases.
  • Familiarity with Git.
  • Cloud platforms (AWS, Azure, or GCP).
  • Docker and Kubernetes.
  • Agile/Scrum experience.
  • CI/CD and DevOps practices.
  • Unit testing (JUnit or Mockito).
  • Bachelor’s degree in computer science, IT, or a related field.
  • Experience: 7–10 Years

All your information will be kept confidential according to EEO guidelines.

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