• Lead the development of scalable web applications, handling the full lifecycle from database design (SQL/GraphQL) to front-end implementation (React). • Design and implement efficient GraphQL APIs and schema definitions; improve SQL queries and manage database migrations to ensure data integrity and performance. • Architect secure authentication flows, with a specific focus on integrating Single Sign-On (SSO) solutions and managing role-based access controls. • Write maintainable, modular, and high-quality code using TypeScript and React for our client-side, and Node.js for the server-side. • Support the team's deployment workflows by building CI/CD pipelines, specifically applying GitHub Actions. • Conduct comprehensive architectural reviews and in-depth code reviews, providing critical feedback to ensure adherence to coding standards. • Identify and address performance bottlenecks across the stack, ensuring you optimize applications for speed, scalability, and readability. • Provide technical leadership to other engineers, promoting a culture of learning and helping the team bridge the gap between front-end creativity and back-end logic. • Participate in Agile ceremonies, sprint planning, and estimation, working with UI/UX designers and team members to ensure architectural and technical feasibility.