Full Stack React and Java Developer
Confirmed on the employer's own hiring board on Oct 19, 2026. First seen by Alion on Aug 17, 2026. Assystem scores B on the Alion truth index.
Assystem provides engineering, project management and digital services to optimise the performance and safety of critical infrastructure throughout its lifecycle.
The company first came to India having acquired Stup Consultants Pvt Ltd in 2021 and L&TIEL in 2024. The company combines its globally recognised expertise in complex project management, with deep-rooted local experience cross full spectrum of infrastructure - from energy, transportation and urban development to water. Today, Assystem has a strong community of 1,500+ multidiscipline engineering experts connected across 8 offices in India.
The Assystem Group is one of the world’s leading independent nuclear engineering companies, ranked among the top three globally, with 60 years of experience in complex and highly regulated environments. With 8,000 experts across 13 countries, Assystem supports the development of low-carbon energy.
As part of the development of our digital entity, we are looking for Full Stack Java & React Developer with proficiency with server-side languages such as Java/J2EE. Familiarity with database technology such as Microsoft SQL Server, MySQL and Oracle. Proficiency with fundamental front-end languages such as HTML, CSS, Bootstrap and JavaScript.
Must have working experience of React, redux, redux-saga, redux toolkit, custom hooks, etc.
Familiarity with JavaScript frameworks such as Angular, Node.JS, Vue.JS, etc. would be an added advantage.
Knowledge of Android would be a plus.
You will work on complex projects in an industrial context and at the cutting edge of innovation around Java technologies.
Job Description in Brief (Roles & Responsibilities):
As such, you will be responsible for:
- Develop and maintain web applications using React.js for the front end and Java for the back end.
- Design, implement, and maintain APIs and microservices.
- Collaborate with cross-functional teams including designers, product managers, and other developers to deliver high-quality software solutions.
- Implement and maintain Continuous Integration and Continuous Deployment (CI/CD) pipelines for efficient and automated software delivery.
- Configure and manage servers to ensure optimal performance, security, and scalability.
- Troubleshoot and debug issues in development, testing, and production environments.
- Stay up-to-date with the latest technologies and best practices in web development, CI/CD, and server configuration.
- Designing and implementing technical solutions, standards and procedures
- Participate in software development projects using an Agile approach.
- Provide support during the development, testing and deployment phases at a client's site.
- Hands-on experience with CI/CD tools such as Jenkins, GitLab CI/CD, or similar.
- Proficiency in configuring and managing servers, preferably with experience in AWS, Azure, or Google Cloud Platform.
- Provide technical expertise on various projects within the Digital entity of Assystem.
- You have a degree in Computer Science and have significant industry-related applications implementation experience.
- You have a passion for new technologies, are curious and rigorous, and have excellent oral and written communication skills.
- The knowledge of at least one cloud architecture is required, and an excellent knowledge of English is required, French is a plus.
- Proven experience as a Full Stack Developer with expertise in React.js and Java.
- You have more than 5 years’ experience in React, JAVA / J2EE web development and you master frameworks such as Hibernate, Spring or Angular.
- Strong understanding of software development methodologies and best practices.
- Excellent problem-solving and communication skills.
- Ability to work effectively in a fast-paced and collaborative environment.
- Experience with containerization technologies such as Docker and Kubernetes will be advantageous.
Will have to work from office only.
We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.