Skills
Frontend Development
TypeScript, JavaScript, React, Angular, Vue.js, Vite, RxJS, HTML5, CSS3, Component-based architecture, State Management (NgRx, Signals) & Reactive Programming, PWA, A11y (WCAG), Internationalization (i18n), SEO, Responsive & Mobile-first design.
Backend Development
Node.js, Express.js, MongoDB, PostgreSQL, C#, .NET, ASP.NET Core, REST API design, GraphQL, LINQ, Redis, Message Queues (BullMQ/Redis), Microservices, Authentication & Authorization (JWT, OAuth2, Identity Server), Security best practices (OWASP), AI integration (LLM APIs, prompt engineering, agentic workflows).
Testing
Unit & E2E testing (Playwright, Jest, xUnit), TDD, BDD, Integration & API testing.
Architecture & Engineering
Clean Architecture, DDD, SOLID, Design Patterns, Event-driven architecture, Modular design, System design, Performance optimization & profiling, Scalability planning, API design.
Tools & Workflow
Git (GitHub, GitLab), Docker, Kubernetes, CI/CD (GitHub Actions, GitLab CI/CD), Monitoring (Grafana, Sentry), Logging (Serilog, Graylog).
Team & Product
Team leadership, Mentoring, Task planning & estimation, Agile/Scrum, Code review, Technical documentation.