Senior Fullstack Developer — TechCorp
2022 - Present · Permanent
Led the development of a SaaS platform used by 10k+ users. Built microservices architecture and modern React frontend.
React, TypeScript, Node.js, PostgreSQL, Docker, AWS
- Designed and implemented the frontend architecture (monorepo, shared component library)
- Built a real-time notification system using WebSockets and Redis pub/sub
- Migrated legacy codebase from JavaScript to TypeScript (200+ files)
- Implemented role-based access control (RBAC) across the entire platform
- Set up automated testing with 85% code coverage (unit, integration, E2E)
- Led the migration from REST to GraphQL for the main API
- Built a dashboard analytics module with interactive charts and export features
- Mentored 3 junior developers through pair programming and weekly 1-on-1s
Frontend Developer — WebAgency
2019 - 2022 · Permanent
Developed responsive web applications for various clients. Specialized in React and Angular projects.
React, Angular, TypeScript, SCSS
- Built 15+ client-facing web applications from scratch
- Created and maintained a shared design system used across all agency projects
- Implemented complex form workflows with multi-step validation
- Optimized web performance achieving 90+ scores on Core Web Vitals
- Integrated third-party APIs (payment, CRM, analytics)
- Set up Storybook documentation for reusable components
- Collaborated closely with UX designers to translate Figma mockups into pixel-perfect UIs
Fullstack Developer Intern — StartupXYZ
2018 - 2019 · Internship
Contributed to the development of an e-commerce platform. Gained experience in fullstack development.
React, Node.js, MongoDB, Machine Learning
- Developed the product catalog with advanced filtering and search
- Built the shopping cart with real-time inventory checking
- Integrated Stripe payment gateway with 3D Secure support
- Implemented user authentication with JWT and OAuth (Google, Facebook)
- Created an admin dashboard for order management and analytics
- Wrote API documentation with Swagger/OpenAPI