Senior & Lead Java Fullstack Developer (Java+React)

About iSteer Technologies:iSteer’s mantra of “taking the quantum leap” with “smarter technology” solutions, is producing what customers wanted in a fraction of time, with fewer people, less overall cost and getting the product to market when it is still relevant to target customers. We truly believe “technology must not only support our customer’s business, but it must advance it at a faster pace”. At iSteer (ISO 27001:2013 certified), we enable our customers, achieve a competitive advantage with technology solutions and products that are derived from decades of cross-industry experience and technology expertise. iSteer helps transform the business of several global enterprises with their technology needs across industries.We provide Digital Integration, Data Engineering and connect enterprises by providing Robotic Process Automation, IOT, Cloud, and AI solutions, through our world-class product engineering expertise, our products like AppSteer make it easier to transform businesses digitally. We have exponentially grown our operations across the globe with 250+ employees at our offices in India, Singapore, United States, Canada and Dubai. Our expansion globally has always been a remarkable difference and delivers key results to our customers. Our renowned partners are Workato Platinum Partner, TIBCO Gold Partner and Dell Boomi. Life at iSteer, where a fine line of young and experienced minds leads into the infinite opportunities in the digital era.At iSteer, we make sure that talent meets technology in a culture which is driven by knowledge and growth. Being a part of iSteer makes you a stakeholder of achievements which will turn your latent potential into a success story. It is also enabled by excellence into our culture which encourages individual development, embraces an inclusive environment, rewards innovative excellence and supports our communities.Why join us● Competitive salary + benefits● We value work-life balance and encourage taking vacations● Excellent leadership and an outstanding network of individuals● On-going regular training certifications sponsored by iSteer.● Know more about us and follow us @ https://isteer.com/.About the Role:We are looking for a highly experienced Senior Java Full Stack Developer with deep expertise in Java (Spring Boot), React.js, and MongoDB. The ideal candidate will play a key role in designing, developing, and maintaining scalable web applications, leading technical discussions, and mentoring junior developers. This is a hands-on role requiring both backend and frontend development capabilities and strong architectural understanding.Key Responsibilities:- Design, develop, and maintain scalable and robust full-stack web applications. - Develop backend services using Java (Spring Boot) and frontend components using React.js. - Design and optimize database schemas and queries for MongoDB. - Collaborate with cross-functional teams including UI/UX designers, DevOps, QA, and Product Managers. - Participate in code reviews, architectural discussions, and performance tuning. - Ensure security, scalability, and high performance of applications. - Write unit and integration tests to ensure code quality. - Mentor and guide junior developers on technical best practices. - Stay up-to-date with emerging technologies and industry trends.Required Skills:- 10+ years of professional software development experience, with strong full-stack development expertise. - Strong proficiency in Java, especially with Spring Boot / Spring Framework. - Solid experience in React.js, including component lifecycle, hooks, and state management. - Hands-on experience with MongoDB including aggregation pipelines, indexing, and performance tuning. - Proficient in RESTful API development and integration. - Strong understanding of front-end technologies like HTML5, CSS3, JavaScript, and modern tooling (Webpack, Babel). - Experience with CI/CD pipelines, Git, Docker, and cloud services (AWS, Azure, or GCP). - Excellent problem-solving skills and ability to work independently. - Strong communication and collaboration skills.Preferred Qualifications:- Experience with microservices architecture. - Familiarity with other frontend frameworks (e.g., Next.js, Angular) is a plus. - Knowledge of other NoSQL or relational databases. - Experience with container orchestration tools like Kubernetes. - Agile/Scrum development methodologies.Education:- Master’s degree in Computer Science, Engineering, or a related field.