Fullstack Developer (Java + React)

Wissen Technology is hiring for Fullstack Developer (Java + React)

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. Our commitment to excellence translates into delivering 2X impact compared to traditional service providers. How do we achieve this? Through a combination of deep domain knowledge, cutting-edge technology expertise, and a relentless focus on quality. We don’t just meet expectations—we exceed them by ensuring faster time-to-market, reduced rework, and greater alignment with client objectives. We have a proven track record of building mission-critical systems across industries, including financial services, healthcare, retail, manufacturing, and more. Wissen stands apart through its unique delivery models. Our outcome-based projects ensure predictable costs and timelines, while our agile pods provide clients with the flexibility to adapt to their evolving business needs. Wissen leverages its thought leadership and technology prowess to drive superior business outcomes. Our success is powered by top-tier talent. Our mission is clear: to be the partner of choice for building world-class custom products that deliver exceptional impact—the first time, every time.

Job Summary

We are looking for a skilled and motivated Full Stack Developer with 3–6 years of hands‑on experience in building scalable web applications and backend services. The ideal candidate should have strong experience in TypeScript, React, Node.js, RESTful APIs, Docker, JWT, Kafka, SQL/PostgreSQL, and AWS, along with experience integrating applications with collaboration and communication platforms such as Microsoft Teams and Slack.

The candidate will be responsible for developing end‑to‑end features, building secure APIs, integrating third‑party services, working with databases and event‑driven systems, and supporting applications deployed in cloud environments.

Experience: 3 - 6Years(1 Position)

Mode of Work: Hybrid

Education Qualification: MCA/B.E/B.Tech/M.Tech

Key Responsibilities

• Design, develop, and maintain scalable full‑stack web applications using TypeScript, React, and Node.js.
• Build reusable, responsive, and high‑performance frontend components using React and TypeScript.
• Develop and integrate RESTful APIs and backend services using Node.js.
• Implement secure authentication and authorization using JWT.
• Design and maintain database schemas and develop efficient queries using SQL/PostgreSQL.
• Develop and maintain event‑driven services and asynchronous workflows using Kafka.
• Containerize applications and services using Docker.
• Deploy, monitor, troubleshoot, and support applications running on AWS.
• Integrate applications with third‑party collaboration platforms such as Microsoft Teams and Slack.
• Work with Teams/Slack APIs, webhooks, bots, notifications, or messaging integrations to enable business workflows and automated notifications.
• Design reliable integrations with external APIs and handle authentication, error handling, retries, rate limits, and API failures.
• Troubleshoot application, API, integration, database, and production issues.
• Write clean, maintainable, reusable, and well‑tested code.
• Participate in code reviews and contribute to coding standards and engineering best practices.
• Collaborate with Product Managers, QA Engineers, DevOps Engineers, and other development teams.
• Participate in Agile/Scrum ceremonies, sprint planning, estimation, and technical discussions.

Required Skills

• 3–6 years of experience in Software Testing, QA Automation, or SDET roles.
• Strong hands‑on experience with Playwright for web automation.
• Good experience in API Testing using tools such as Postman, REST Assured, or equivalent.
• Strong understanding of functional, regression, integration, and end‑to‑end testing.
• Experience testing React‑based web applications.
• Working knowledge of AWS and cloud‑based application environments.
• Experience with Git and version control systems.
• Good understanding of SDLC, STLC, defect management, and Agile methodologies.
• Strong debugging, analytical, and problem‑solving skills

Good to Have

• 3–6 years of professional software development experience.
• Good experience with React.js and modern frontend development.
• Hands‑on experience designing, developing, and consuming RESTful APIs.
• Experience with JWT‑based authentication and authorization.
• Strong knowledge of SQL/PostgreSQL, including queries, joins, indexes, transactions, and database design.
• Hands‑on experience with Kafka, including topics, producers, consumers, and message processing.
• Experience with Docker and containerized application development.
• Working knowledge of AWS and cloud‑based application deployment.
• Experience integrating applications with Microsoft Teams and/or Slack using their APIs, webhooks, bots, or related integration mechanisms.
• Good understanding of Git, SDLC, debugging, testing, and Agile methodologies.
• Strong analytical and problem‑solving skills.