Demo

Junior Java Developer

GARGI TECHNOLOGIES INC
Madison, WI Full Time
POSTED ON 7/23/2026
AVAILABLE BEFORE 8/22/2026

Position: Junior Java Developer

Experience: 1–4 Years
Employment Type: Full-Time

Job Summary

We are seeking a highly motivated Junior Java Developer with 1–3 years of professional experience in designing, developing, and maintaining enterprise-grade Java applications. The ideal candidate should have hands-on experience with modern Java technologies, backend development frameworks, RESTful APIs, relational databases, and version control systems. The candidate will collaborate with cross-functional teams to build scalable, secure, and high-performance applications while following industry best practices and software development standards.

Key Responsibilities

  • Develop, test, and maintain robust Java-based backend applications using Java 8/11/17 and the Spring Boot framework.

  • Design and implement RESTful APIs for integration with web, mobile, and third-party applications.

  • Participate in application architecture discussions and contribute to technical design decisions.

  • Write clean, reusable, and well-documented code following SOLID principles and design patterns.

  • Optimize application performance, scalability, and reliability through efficient coding practices.

  • Develop database objects, write complex SQL queries, and optimize database performance.

  • Collaborate with UI developers, QA engineers, DevOps teams, and business analysts to deliver high-quality software.

  • Perform unit testing, integration testing, debugging, and root cause analysis of production issues.

  • Participate in code reviews to ensure coding standards, maintainability, and security compliance.

  • Work with Git for source code management and CI/CD pipelines for automated deployment.

  • Create technical documentation, API specifications, and deployment guides.

  • Support production releases, monitor application performance, and resolve application defects within SLA timelines.

  • Continuously learn and adopt new technologies, frameworks, and development methodologies.

Required Technical Skills

  • 1–4 years of professional experience in Java application development.

  • Strong proficiency in Core Java, including Collections, Multithreading, Exception Handling, Generics, Streams, and Lambda Expressions.

  • Hands-on experience with Spring Boot, Spring MVC, Spring Data JPA, and Spring Security.

  • Experience developing RESTful web services using JSON and HTTP protocols.

  • Knowledge of Hibernate/JPA ORM frameworks.

  • Strong understanding of Object-Oriented Programming (OOP), Design Patterns, and SOLID principles.

  • Experience with relational databases such as MySQL, PostgreSQL, Oracle, or SQL Server.

  • Ability to write optimized SQL queries, stored procedures, joins, indexes, and views.

  • Experience with Git, GitHub, or GitLab for version control.

  • Familiarity with Maven or Gradle build automation tools.

  • Basic knowledge of Docker, Kubernetes, and cloud platforms such as AWS, Azure, or Google Cloud.

  • Understanding of CI/CD tools including Jenkins, GitHub Actions, or Azure DevOps.

  • Knowledge of messaging systems such as Kafka or RabbitMQ is an advantage.

  • Familiarity with unit testing frameworks such as JUnit and Mockito.

  • Basic understanding of Microservices architecture and API Gateway concepts.

  • Knowledge of application security practices including authentication, authorization, and OWASP guidelines.

Preferred Qualifications

  • Bachelor''s degree in Computer Science, Information Technology, Software Engineering, or a related discipline.

  • Experience working in Agile/Scrum development environments.

  • Strong analytical, debugging, and problem-solving skills.

  • Excellent communication and collaboration abilities.

  • Ability to work independently while contributing effectively within a team.

  • Exposure to SonarQube, Swagger/OpenAPI, Redis, Elasticsearch, or monitoring tools is considered an added advantage.

Key Competencies

  • Backend Application Development

  • REST API Development

  • Microservices Development

  • Database Design and Query Optimization

  • Performance Tuning

  • Code Quality and Best Practices

  • Debugging and Troubleshooting

  • Secure Coding Practices

  • Agile Software Development

  • Continuous Integration and Continuous Deployment (CI/CD)

Nice to Have

  • Experience with containerized application deployment.

  • Exposure to event-driven architecture.

  • Knowledge of caching frameworks and distributed systems.

  • Understanding of software performance monitoring and logging tools.

  • Familiarity with Test-Driven Development (TDD) and Behavior-Driven Development (BDD).

What We Offer

  • Opportunity to work on enterprise-scale applications and modern Java technologies.

  • Collaborative and innovation-driven work environment.

  • Professional growth through technical mentorship and training.

  • Exposure to cloud-native development, DevOps practices, and scalable architecture.

  • Career advancement opportunities based on technical expertise and performance.

Salary.com Estimation for Junior Java Developer in Madison, WI
$95,026 to $121,829
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