React, Next.js, TypeScript, JavaScript, HTML, CSS, Tailwind CSS.

Experience building responsive user interfaces, working with complex state management (Redux), and integrating RESTful APIs and GraphQL endpoints.

Familiar with React Server Components and Next.js page-router based applications.

Have implemented i18n (internationalization) for multi-language support in web applications.

Worked with media servers including nginx-rtmp, OvenMediaEngine, and Wowza.

Experience with live video streaming technologies such as WebRTC and RTMP to build real-time applications (multi-user chat, streaming).

Implemented custom live-video business logic: RTMP authentication, transcoding, clustering, and real-time streaming performance monitoring.

Node.js, Express, RESTful APIs, Go.

Experience building containerized services, APIs and microservices that expose observability metrics and health checks and are deployed to production environments.

MySQL / MariaDB, Redis, CouchDB.

Experience designing and optimizing database schemas, writing complex queries for dashboards and reports, and implementing caching strategies to improve performance.

Experience with message brokers like RabbitMQ and Redis Pub/Sub to coordinate asynchronous tasks and real-time communication between services.

Docker, CI/CD (GitLab, Jenkins), AWS, Ansible, Git.

Experience in containerization, building CI/CD pipelines, and deploying applications to cloud platforms like AWS. Familiar with infrastructure-as-code tools like Ansible for automating server provisioning and configuration.

Experience with cloud CI/CD providers and self-hosted Jenkins on Windows Server environments.