Fullstack Developer

Position Summary We are looking for a Fullstack Developer with strong expertise in React.js for the frontend and Node.js/Express.js for backend development. The role involves building and maintaining scalable, high-performance web applications, integrating APIs, and ensuring seamless communication between front-end and back-end systems. The ideal candidate will work closely with cross-functional teams to deliver robust, maintainable, and efficient solutions. Strategic Responsibilities Lead and develop scalable, high-performance, and responsive web applications using React.js, Node.js, and Express.js. Architect, build, and maintain efficient front-end and backend solutions. Design and implement RESTful and GraphQL APIs for seamless integration between client and server. Write clean, modular, and reusable code following best practices and design patterns. Develop and manage database schemas, queries, and transactions using MongoDB, MySQL, or PostgreSQL. Collaborate with UX/UI teams to deliver intuitive, pixel-perfect, and user-friendly interfaces. Work closely with DevOps and backend teams to ensure smooth API integration and deployment workflows. Optimize application performance across both frontend and backend layers. Ensure security best practices, data integrity, and proper error handling across the stack. Conduct code reviews to maintain quality, performance, and consistency standards. Mentor and guide junior/mid-level developers in fullstack architecture and development practices. Stay updated with emerging technologies, including Next.js, Nest.js, and server-side rendering (SSR). Required Experience: 3–6 years of experience in fullstack web development, with hands-on experience in React.js, Node.js, and Express.js. Proficiency in JavaScript (ES6+), TypeScript (preferred), HTML5, and CSS3. Strong understanding of frontend frameworks (React.js, Redux, Redux Toolkit) and backend frameworks (Express.js, Nest.js). Experience with RESTful and GraphQL API development and integration. Proficiency in database design and queries using MongoDB, MySQL, or PostgreSQL. Familiarity with authentication mechanisms such as JWT, OAuth, and SSO. Experience with Webpack, Babel, NPM/Yarn for front-end builds and package management. Strong understanding of performance optimization, caching, and debugging tools. Experience with Unit Testing and Integration Testing using Jest, Mocha, or Cypress. Version control proficiency using Git/GitHub/GitLab. Soft Skills: Excellent communication and collaboration skills. Ability to manage multiple tasks and meet deadlines. Detail-oriented and proactive in identifying and resolving issues. Adaptable to new technologies and fast-paced environments. About Polestar: As a data analytics and enterprise planning powerhouse, Polestar Analytics helps its customers bring out the most sophisticated insights from their data in a value-oriented manner. From analytics foundation to analytics innovation initiatives, we offer a comprehensive range of services that help businesses succeed with data. We have a geographic presence in the United States (Dallas, Manhattan, New York, Delaware), UK(London) & India (Delhi-NCR, Mumbai, Bangalore & Kolkata) and have 600+ people strong world-class team. We are growing at a rapid pace and plan to double our growth each year. This provides immense growth and learning opportunities for those who are choosing to work with Polestar. We hire from most of the Premier Undergrad and MBA institutes. We are serving customers across 20+ countries. Our expertise and deep passion for what we do has brought us many accolades. The list includes: - Recognized as the Top 50 Companies for Data Scientists in 2023 by AIM. Financial Times awarded Polestar as High-Growth Companies across Asia-Pacific for a 5th time in a row in 2023. Featured on the Economic Times India's Growth Champions in FY2023. Polestar Analytics Selected as a 2022 Red Herring Global Companies. Top Data Science Providers in India 2023: Penetration and Maturity (PeMa) Quadrant. India’s most promising data science companies in 2022 by Analytics Insight. Featured on Forrester's Now Tech: Customer Analytics Service Providers Report Q2, 2021. Recognized as Anaplan's India RSI Partner of the Year FY21. Elite Qlik Partner and a member of the ‘Qlik Partner Advisory Council’ & Microsoft Gold Partners for Data & Cloud Platforms Culture at Polestar. We have one of the most progressive people’s practices which are all aimed at enabling fast paced growth for those who deserve it.