Junior Full Stack Engineer - React.js/Java/Python
First seen by Alion on Oct 29, 2026.
Overview of Position :
We are hiring a Junior Full-Stack Engineer with 5 - 7 years of hands-on experience to build, test, and maintain scalable web applications on a modern Java and React stack. In this role, you will work closely with senior engineers and cross-functional team members to develop responsive user interfaces, robust backend RESTful microservices, and efficient database solutions.
Tech Stack :
- React, Java 17+, Python, Microservices, AWS/Azure, RDBMS, NoSQL
Key Responsibilities :
- Develop and maintain full-stack web applications using Java (Spring Boot) on the backend and React on the frontend.
- Build responsive, intuitive user interfaces from UI/UX designs and wireframes.
- Implement RESTful APIs, microservices, and database queries across relational (PostgreSQL, SQL Server) and NoSQL platforms.
- Write clean, maintainable, and well-tested code following established engineering best practices.
- Participate actively in peer code reviews, sprint planning, and daily Agile standups.
- Write effective unit and integration tests using frameworks such as Jest, JUnit, and Mockito to ensure robust code quality.
- Assist in troubleshooting, debugging, and resolving application bug reports and performance issues.
- Work with CI/CD pipelines and deployment processes to release application updates in cloud environments (AWS/Azure).
- Collaborate with senior engineers, product owners, and QA teams to deliver sprint goals on time.
Required Knowledge & Skills :
- 2 - 3 years of hands-on software development experience with core focus on modern Java full-stack development.
- Working proficiency with Java frameworks, specifically Spring Boot and Hibernate/JPA.
- Hands-on experience building web application interfaces using React, JavaScript (ES6+), HTML5, CSS3, and Node.js/npm ecosystem.
- Proficiency with Python for scripting, basic backend automation, or data handling tasks.
- Understanding of microservices architecture principles and basic familiarity with messaging tools (e.g., Kafka or RabbitMQ).
- Hands-on experience writing and optimizing SQL queries, working with relational databases (PostgreSQL/SQL Server) and NoSQL databases (MongoDB).
- Basic experience with containerization technologies (Docker) and exposure to cloud platforms (AWS or Azure).
- Familiarity with web application security fundamentals (e.g., CORS, JWT, OAuth 2.0 concepts).
- Experience with automated testing tools (JUnit, Jest, React Testing Library) and commitment to writing testable code.
- Familiarity with Git version control, branch management, and CI/CD tools (GitHub Actions, Jenkins, or Azure DevOps).
- Familiarity with Agile development workflows using Jira or similar tools.
Soft Skills :
- Strong verbal and written communication skills with the ability to explain technical details clearly.
- Proactive problem-solving mindset and eagerness to learn new tools and technologies.
- Strong collaborative spirit and ability to work effectively within a multi-disciplinary team.
- Good time-management skills and attention to detail when working on sprint deliverables.
- Receptive to feedback, coaching, and peer code reviews to continuously improve technical mastery.
Skills
Full Stack, Java, React.js, Spring Boot, Microservices Architecture, Python, Cloud, Hibernate, PostgreSQL, MongoDB