Full Stack Engineer (Java+React.JS)

Wissen Technology is hiring for Full Stack Developer

About Wissen Technology:

At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide. Founded in 2015, our core philosophy is built around a strong product engineering mindset—ensuring every solution is architected and delivered right the first time. Today, Wissen Technology has a global footprint with 2000+ employees across offices in the US, UK, UAE, India, and Australia.

About the Role :

We are looking for a talented Full Stack Engineer with strong hands-on experience in Java, Spring Boot, React.js, and Generative AI (Good to have) .

The role involves developing scalable backend microservices using Java and Spring Boot, building responsive web applications using React, and integrating Gen AI / LLM capabilities into enterprise applications and workflows.

Key Responsibilities

• Develop scalable and secure backend services using Java, Spring Boot, and Microservices .
• Design and develop responsive, modular web applications using React.js .
• Build and integrate RESTful APIs and backend services with frontend applications.
• Work with Generative AI / LLMs to build intelligent application features and automation workflows.
• Integrate LLMs such as OpenAI, Anthropic, or similar models into applications.
• Work with prompt engineering, RAG, embeddings, vector databases, and AI-powered workflows .
• Develop and maintain applications using SQL and NoSQL databases such as PostgreSQL, MySQL, MongoDB, and Redis.
• Design and work with event-driven / asynchronous architectures using Kafka or RabbitMQ.
• Write clean, maintainable, testable, and production-ready code.
• Collaborate with product, engineering, and cross-functional teams to deliver end-to-end solutions.
• Deploy and maintain applications using Docker, CI/CD, and cloud platforms .

Key Requirements

Backend – Mandatory

• Strong hands-on experience in Java .
• Strong experience with Spring Boot and Microservices .
• Good understanding of REST APIs, distributed systems, and backend architecture .
• Experience with Spring Data JPA / Hibernate .
• Good understanding of multithreading, exception handling, and performance optimization.

Frontend – Mandatory

• Strong hands-on experience with React.js .
• Good knowledge of JavaScript / TypeScript, HTML5, and CSS3 .
• Experience with Redux, Context API, or similar state-management frameworks .
• Ability to integrate React applications with backend REST APIs.

Generative AI – Good to have

• Hands-on exposure to Generative AI / LLM-based applications .
• Experience working with OpenAI, Anthropic, Gemini, or similar LLM APIs .
• Understanding of Prompt Engineering, RAG, embeddings, and vector databases .
• Exposure to frameworks/tools such as LangChain, LangGraph, LlamaIndex, or similar .
• Understanding of AI agents / Agentic AI workflows is an advantage.

Database & Cloud

• Experience with PostgreSQL / MySQL and MongoDB / Redis .
• Exposure to AWS, Azure, or GCP .
• Familiarity with Docker, Git, and CI/CD pipelines .

Good to Have

• Experience with Kafka / RabbitMQ and event-driven architecture.
• Experience building AI-powered chat interfaces or intelligent workflow automation .
• Exposure to Knowledge Graphs / Graph databases .
• Experience with AI agent orchestration and multi-step AI workflows.

Wissen Sites:

Website: www.wissen.com

LinkedIn: https://www.linkedin.com/company/wissen-technology

Wissen Leadership: https://www.wissen.com/company/leadership-team/

Wissen Live: https://www.linkedin.com/company/wissen-technology/posts/feedView=All

Wissen Thought Leadership: https://www.wissen.com/articles/