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Java Fullstack Engineer

Bangalore, Karnataka, IndiaOnsitePosted Oct 14, 2026

Job description

Key Responsibilities

Design, develop, and maintain end-to-end web applications using Java, Spring Boot, React.js, and related technologies. Develop scalable and secure backend services, RESTful APIs, and microservices using Java and Spring Boot. Build responsive, reusable, and high-performance user interfaces using React.js, JavaScript, HTML5, and CSS3.

Integrate frontend components with backend services and third-party APIs. Design, develop, and optimize database schemas, queries, and transactions using SQL-based databases. Implement application security, authentication, authorization, and data validation. Write clean, maintainable, reusable, and well-documented code following coding standards and best practices.

Perform unit testing, integration testing, debugging, and performance optimization. Collaborate with architects, business analysts, QA engineers, DevOps teams, and other stakeholders. Participate in code reviews, technical discussions, sprint planning, and Agile ceremonies. Work with CI/CD pipelines, version control systems, and deployment processes.

Troubleshoot production issues and ensure application reliability, scalability, and performance. Required Technical Skills Backend: Core Java, Java 8/11/17 or later, Spring Boot, Spring MVC, Spring Security, Hibernate/JPA. Frontend: React.js, JavaScript (ES6+), HTML5, CSS3, responsive UI development. API & Architecture: RESTful APIs, microservices architecture, JSON, API integration.

Database: SQL, PostgreSQL, MySQL, Oracle, or similar relational databases. Build & Version Control: Maven/Gradle, Git, GitHub/GitLab/Bitbucket. Testing: JUnit, Mockito, React Testing Library, or Jest. DevOps & Cloud: CI/CD pipelines and exposure to AWS, Azure, or GCP. Methodology: Agile/Scrum, code reviews, debugging, and performance tuning

Description copied from Ascendion's careers page. Read the full posting before you apply.

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