Senior Full-stack Developer

Company Introduction Codebase is a young software services company with a great pool of tech-savvy developers. We started in the spring of 2018, and have been growing aggressively. We are located in Pune, India, and serve software product companies across the globe; focusing on enterprise SaaS, eCommerce, cloud, and application development. We are looking for a high-impact Full Stack Engineer who can build, scale, and own modern web and mobile applications end-to-end. You will work across React (Web), React Native (iOS & Android), and Node.js backend systems , contributing to product decisions, system architecture, and performance optimization. This role is ideal for someone who enjoys building production-ready systems , cares about clean code, and understands how scalable products are built and operated in real-world environments. Key Responsibilities: Frontend (Web & Mobile) Design and build responsive web applications using React Develop and maintain cross-platform mobile apps using React Native for iOS and Android Translate product requirements and UX designs into high-quality, maintainable UI components Optimize applications for performance, accessibility, and scalability Manage application state effectively and ensure smooth user experiences Backend & APIs Build and maintain Node.js backend services Design and implement REST APIs and real-time communication using WebSockets or Server-Sent Events (SSE) Handle authentication and authorization using JWT and OAuth2 Ensure secure data handling and follow best practices for API design Collaborate closely with frontend teams to deliver seamless integrations Database & Data Management Design, optimize, and maintain PostgreSQL databases Write efficient queries, manage migrations, and ensure data integrity Understand indexing, performance tuning, and schema design Infrastructure & DevOps Containerize applications using Docker Set up and maintain CI/CD pipelines using GitHub Actions Support smooth deployments across environments (dev, staging, production) Work with modern development workflows and version control practices Observability & Reliability Implement and monitor application logs, metrics, and error tracking Diagnose and resolve production issues proactively Improve system reliability, performance, and uptime through observability insights Collaboration & Ownership Participate in code reviews and architectural discussions Work closely with product managers, designers, and QA teams Take ownership of features from design to production Mentor junior developers (for senior-level candidates) Requirements:  3–9 years of experience in full-stack development  Strong hands-on experience with React (Web) Proven experience withReact Native (iOS & Android) Solid backend experience using Node.js Experience building REST APIs and real-time systems (WebSockets/SSE) Strong knowledge of PostgreSQL Hands-on experience with JWT and OAuth2 authentication Experience with Docker and CI/CD pipelines (GitHub Actions) Familiarity with logging, monitoring, and error tracking tools Strong understanding of software engineering best practices Nice to have: Experience working in product-based or SaaS environments Exposure to system design and scalable architectures Experience handling production incidents and performance tuning Knowledge of testing frameworks and automated testing Prior experience in agile or fast-paced startup environments Soft Skills Excellent problem-solving and analytical skills. Strong communication and interpersonal abilities. Ability to work independently and as part of a team. Proactive and eager to learn new technologies.