MUMBAI · FULLTIME
Full Stack Developer (Java & React JS)
ComUnus Technologies
Mumbai · onsite · Posted 48d ago
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Undisclosed3–5 yrsfulltimeMumbai
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Section · 01
About this role
Job Summary
Key Responsibilities
Required Technical Skills
Backend
Frontend
Database
Tools
Good to Have
Education
Experience
Key Competencies
Mandatory Skills
Preferred Skills
Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.
We are looking for a skilled and motivated Full Stack Developer with 3-5 years of experience in designing, developing, and maintaining scalable web applications using Java, Spring Boot, and React JS. The ideal candidate should have strong hands-on experience in both backend and frontend development, with a good understanding of RESTful APIs, Microservices, SQL databases, JavaScript, React JS, Git, and Agile development practices. The candidate will work closely with product, UI/UX, QA, and DevOps teams to deliver high-quality and scalable applications.
Key Responsibilities
- Design, develop, test, and maintain full-stack web applications using Java, Spring Boot, and React JS.
- Develop scalable and secure backend services using Java and Spring Boot.
- Design, develop, and integrate RESTful APIs and Microservices.
- Build responsive, reusable, and user-friendly UI components using React JS, JavaScript, HTML5, and CSS3.
- Integrate React applications with backend APIs and third-party services.
- Work with relational databases such as MySQL, PostgreSQL, Oracle, or SQL Server.
- Write efficient SQL queries and perform database design, optimization, and troubleshooting.
- Implement application security using concepts such as JWT, OAuth2, authentication, and authorization.
- Write unit and integration tests using tools such as JUnit, Mockito, Jest, or equivalent.
- Participate in code reviews and ensure adherence to coding standards and best practices.
- Troubleshoot application issues across frontend, backend, API, and database layers.
- Identify and resolve performance, scalability, and production issues.
- Work with Git and participate in CI/CD processes using tools such as Jenkins or GitHub Actions.
- Collaborate with QA, DevOps, product managers, business analysts, and other development teams.
- Participate in Agile/Scrum ceremonies such as sprint planning, daily stand-ups, reviews, and retrospectives.
- Prepare and maintain technical documentation related to applications, APIs, and development processes.
Required Technical Skills
Backend
- Strong hands-on experience with Java 8/11/17+.
- Strong knowledge of Spring Boot.
- Good understanding of Spring MVC, Spring Data JPA, Hibernate/JPA.
- Experience developing RESTful APIs.
- Good understanding of Microservices architecture.
- Strong knowledge of Object-Oriented Programming and Java fundamentals.
- Understanding of exception handling, multithreading, collections, and Java Streams.
Frontend
- Strong hands-on experience with React JS.
- Good knowledge of JavaScript / ES6+.
- Experience with React Hooks, Components, State Management, and Context API/Redux.
- Strong knowledge of HTML5 and CSS3.
- Experience integrating frontend applications with REST APIs.
- Understanding of responsive web design and browser compatibility.
Database
- Strong knowledge of SQL.
- Hands-on experience with at least one database such as MySQL, PostgreSQL, Oracle, or SQL Server.
- Good understanding of database design, joins, indexes, stored procedures, and query optimization.
- Knowledge of NoSQL databases such as MongoDB is an added advantage.
Tools
- Hands-on experience with Git/GitHub/GitLab/Bitbucket.
- Knowledge of Maven or Gradle.
- Understanding of CI/CD pipelines using Jenkins, GitHub Actions, GitLab CI, or similar tools.
- Knowledge of Docker is preferred.
- Exposure to AWS, Azure, or GCP is an advantage.
- Familiarity with tools such as Postman, Swagger/OpenAPI, Jira, etc.
Good to Have
- Experience with TypeScript.
- Experience with Redux / Redux Toolkit.
- Knowledge of Kafka or other messaging systems.
- Experience with Docker and Kubernetes.
- Exposure to AWS/Azure/GCP.
- Knowledge of automated testing and TDD/BDD.
- Understanding of application security, OAuth2, JWT, XSS, and CSRF.
- Experience working on high-volume or enterprise applications.
Education
Bachelors degree in Computer Science, Information Technology, Engineering, or a related field. Equivalent professional experience may also be considered.
Experience
- 3-5 years of professional experience in software/full-stack development.
- Strong hands-on experience with Java + Spring Boot + React JS.
- Proven experience in developing and integrating REST APIs.
- Experience working in Agile/Scrum development environments.
Key Competencies
- Strong problem-solving and analytical skills.
- Good understanding of software development lifecycle.
- Ability to debug issues across frontend and backend.
- Strong communication and collaboration skills.
- Ability to work independently as well as in a team.
- Good attention to code quality, performance, security, and maintainability.
- Willingness to learn new technologies and take ownership of deliverables.
Mandatory Skills
- Java
- Spring Boot
- React JS
- JavaScript
- REST APIs
- Microservices
- SQL
- JPA/Hibernate
- HTML
- CSS
- Git
Preferred Skills
- TypeScript
- Redux
- Docker
- Kubernetes
- AWS/Azure
- Jenkins
- JUnit
- Mockito
- Jest
- Kafka
Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.
Sourced from naukri
Section · 02
Skills
Stored ProceduresDatabase DesignMultithreadingenterprise applicationsHTMLOracle DBcodingMySQLWeb DesigningHibernate
Section · Company
About ComUnus Technologies
ComUnus Technologies
IT Services & Consulting
51-200
employees
2016
10 years old
Mumbai, Maharashtra
India
₹5.6L PA avg
Avg at ComUnus Technologies
About
ComUnus Technologies facilitates community engagement by harmonizing individual and societal interests, addressing challenges in collective progress.
Industries
IT Services & Consulting
Employee ratings
10 reviews
3.3/ 5
Culture
3.4
Career growth
3.4
Work-life
3.4
Employees rate it well for
Work-Life Balance34Overall Company33
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