Java Backend Developer
Jobs for Humanity
Apply to this job O'Fallon, MO, us on site Until 8/21/2026 First posted May 1, 2026 Last posted May 1, 2026
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.
About this role
Summary
Design, develop, and maintain backend applications using Java, Spring, Kafka, and cloud technologies.
Job title
Java Backend Developer
Experience level
7–10 Years
Industry
software
Location requirements
O'Fallon, MO, US, on-site, no remote
Salary
Not specified
Management role
No
Skills & keywords
Required skills
Java 8Spring BootKafkaREST APIsSQLNoSQLGitAWSDockerKubernetesAgileCI/CDJUnitMockito
Preferred skills
None specified
Specializations
Java 8Spring BootKafkaMicroservicescloud
Locations
Structured locations inferred from the posting.
O'Fallon, MO, USA
On-site City
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