- Languages
- JavaScript, TypeScript, Python, Go, PHP, Java
- Backend
- Node.js, Express.js, NestJS, Fastify, GraphQL, REST, WebSockets, Socket.IO
- Frontend
- React.js, Next.js, Vue.js
- Databases & ORMs
- PostgreSQL, MySQL, MongoDB, Redis, Firebase, Prisma, Mongoose
- Message Brokers & Streaming
- RabbitMQ, Apache Kafka, MQTT
- Web3 & Blockchain
- Web3, Ethereum, Solidity, Ethers.js, Hardhat
- Automation & Data Tools
- Bash, PowerShell, Selenium, Puppeteer, Playwright, BeautifulSoup, Scrapy, Requests, HTTPX, lxml, Cheerio
- Testing
- Jest, Mocha, Chai, Playwright, Selenium, k6
- DevOps & Infrastructure
- Linux, Docker, Ansible, AWS, GCP, Azure, GitLab CI/CD, GitHub Actions, Jenkins, Nginx, Cloudflare, OpenBao
- Security & Cryptography
- OAuth, JWT, 2FA, OpenSSL, AES, RSA, ECC, DH, BCrypt
- Developer Tools
- Git, GitHub, GitLab, Bitbucket, GitHub Copilot, Claude, ChatGPT, Cursor, Jira