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Nikolay Filippov

Nikolay Filippov

Nikolay Filippov

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Featured projects

Full-stack / E-commerce Platform

Exclusive

Full-stack e-commerce platform built with Next.js 16, React 19, TypeScript and an Express API backed by Prisma and PostgreSQL. Implements a server-rendered product catalog, variants and inventory, guest and authenticated baskets, wishlist, JWT authentication with refresh-token rotation, transactional order processing, Stripe checkout and webhooks, reviews, Cloudinary uploads and account management. Includes Docker-based local infrastructure, GitHub Actions CI and an extensive Vitest test suite.

Next.js 16React 19TypeScriptExpress

DevOps / Full-stack Infrastructure

Yuviron Server

Production-grade server infrastructure for the Yuviron platform. Built on Docker Compose with full service orchestration: Nginx reverse proxy, HTTPS termination, MySQL, Redis cache, RabbitMQ message queue, Seq logging and Tailscale networking. Includes CI/CD via a self-hosted GitHub Actions runner with automated Linux server deployment and strict dev/prod environment separation.

DockerDocker ComposeNginxGitHub Actions

Full-stack Team Project

GitHub Clone

Full-stack GitHub-inspired platform built as a team project. Features a React frontend with responsive layout and navigation, an ASP.NET Core backend with authentication and user management, an Entity Framework data layer integrated with MS SQL Server, and a fully containerized Docker Compose environment covering frontend, backend and database services.

ReactC#ASP.NET Core.NET 8

Frontend / Full-stack — Commercial Product

Tentai

Production React/Next.js application developed at TENTAI. Worked on real product features, led the full migration from SPA to Next.js with SSR, integrated REST APIs, improved routing and page architecture, and raised the Lighthouse performance score from 50 to 74. Real commercial work shipped to production.

ReactNext.jsTypeScriptREST API

Backend / DevTools — CLI & API Tool

CommitScope

Tool for fetching commits, diffs and review comments from any GitHub repository, available as a CLI, a REST/SSE API and a web interface. Built around a shared Python core with a resilient HTTP client (retries, rate-limit handling), strict mypy typing and full pytest coverage with mocked requests. The web UI streams commits live via Server-Sent Events into expandable cards with diffs and comments.

PythonFastAPIDockerDocker Compose

Full-stack / E-commerce Platform

Exclusive

Full-stack e-commerce platform built with Next.js 16, React 19, TypeScript and an Express API backed by Prisma and PostgreSQL. Implements a server-rendered product catalog, variants and inventory, guest and authenticated baskets, wishlist, JWT authentication with refresh-token rotation, transactional order processing, Stripe checkout and webhooks, reviews, Cloudinary uploads and account management. Includes Docker-based local infrastructure, GitHub Actions CI and an extensive Vitest test suite.

Next.js 16React 19TypeScriptExpress

DevOps / Full-stack Infrastructure

Yuviron Server

Production-grade server infrastructure for the Yuviron platform. Built on Docker Compose with full service orchestration: Nginx reverse proxy, HTTPS termination, MySQL, Redis cache, RabbitMQ message queue, Seq logging and Tailscale networking. Includes CI/CD via a self-hosted GitHub Actions runner with automated Linux server deployment and strict dev/prod environment separation.

DockerDocker ComposeNginxGitHub Actions

Full-stack Team Project

GitHub Clone

Full-stack GitHub-inspired platform built as a team project. Features a React frontend with responsive layout and navigation, an ASP.NET Core backend with authentication and user management, an Entity Framework data layer integrated with MS SQL Server, and a fully containerized Docker Compose environment covering frontend, backend and database services.

ReactC#ASP.NET Core.NET 8

Frontend / Full-stack — Commercial Product

Tentai

Production React/Next.js application developed at TENTAI. Worked on real product features, led the full migration from SPA to Next.js with SSR, integrated REST APIs, improved routing and page architecture, and raised the Lighthouse performance score from 50 to 74. Real commercial work shipped to production.

ReactNext.jsTypeScriptREST API

Backend / DevTools — CLI & API Tool

CommitScope

Tool for fetching commits, diffs and review comments from any GitHub repository, available as a CLI, a REST/SSE API and a web interface. Built around a shared Python core with a resilient HTTP client (retries, rate-limit handling), strict mypy typing and full pytest coverage with mocked requests. The web UI streams commits live via Server-Sent Events into expandable cards with diffs and comments.

PythonFastAPIDockerDocker Compose

Full-stack / E-commerce Platform

Exclusive

Full-stack e-commerce platform built with Next.js 16, React 19, TypeScript and an Express API backed by Prisma and PostgreSQL. Implements a server-rendered product catalog, variants and inventory, guest and authenticated baskets, wishlist, JWT authentication with refresh-token rotation, transactional order processing, Stripe checkout and webhooks, reviews, Cloudinary uploads and account management. Includes Docker-based local infrastructure, GitHub Actions CI and an extensive Vitest test suite.

Next.js 16React 19TypeScriptExpress

DevOps / Full-stack Infrastructure

Yuviron Server

Production-grade server infrastructure for the Yuviron platform. Built on Docker Compose with full service orchestration: Nginx reverse proxy, HTTPS termination, MySQL, Redis cache, RabbitMQ message queue, Seq logging and Tailscale networking. Includes CI/CD via a self-hosted GitHub Actions runner with automated Linux server deployment and strict dev/prod environment separation.

DockerDocker ComposeNginxGitHub Actions

Full-stack Team Project

GitHub Clone

Full-stack GitHub-inspired platform built as a team project. Features a React frontend with responsive layout and navigation, an ASP.NET Core backend with authentication and user management, an Entity Framework data layer integrated with MS SQL Server, and a fully containerized Docker Compose environment covering frontend, backend and database services.

ReactC#ASP.NET Core.NET 8

Frontend / Full-stack — Commercial Product

Tentai

Production React/Next.js application developed at TENTAI. Worked on real product features, led the full migration from SPA to Next.js with SSR, integrated REST APIs, improved routing and page architecture, and raised the Lighthouse performance score from 50 to 74. Real commercial work shipped to production.

ReactNext.jsTypeScriptREST API

Backend / DevTools — CLI & API Tool

CommitScope

Tool for fetching commits, diffs and review comments from any GitHub repository, available as a CLI, a REST/SSE API and a web interface. Built around a shared Python core with a resilient HTTP client (retries, rate-limit handling), strict mypy typing and full pytest coverage with mocked requests. The web UI streams commits live via Server-Sent Events into expandable cards with diffs and comments.

PythonFastAPIDockerDocker Compose

FEATURED

FileSystemManager — Sandboxed CLI

C++17STLstd::filesystemSHA-256GitHub Actions CI

A multi-user command-line file manager written in C++17 with zero external dependencies. Each user is sandboxed inside a workspace/ directory through canonical-path validation that blocks directory-traversal attacks, and authentication uses a from-scratch SHA-256 implementation with per-user random salting. The CLI offers 22 file and directory operations, recursive glob search, Tab-completion, persistent history and masked password input. Backed by 88 unit tests on a custom framework and a GitHub Actions CI pipeline that builds and tests on every push.

Watches Web Application

Node.js ·Express.js ·EJS

More projectsExplore more repositories and side projects.

APR 2024Present

Freelance — Full-stack Developer

Remote · Client projects

Building full-stack web applications with React and Next.js, integrating REST APIs, implementing SSR and optimizing client-server data flow. Delivering end-to-end solutions including frontend architecture, backend API integration and deployment — with a focus on Lighthouse performance and SEO for real client websites.

React / Next.js
TypeScript
REST API
SSR / SEO
Lighthouse

AUG 2025DEC 2025

TENTAI — Full-stack / Frontend Developer

Product development · Full-time

Developed and maintained production features in a React/Next.js application. Led the migration from SPA to Next.js with SSR, significantly improving SEO and performance. Integrated REST APIs, improved routing and page structure, and raised the Lighthouse score from 50 to 74 through targeted performance optimizations.

React / Next.js
SSR Migration
REST API
SEO
Performance

AUG 2024JUL 2025

SEIDAT — Web Developer

Product development · Full-time

Developed and delivered a presentation template web store integrated into the main Seidat application and administrative panel. Built frontend functionality with React, TypeScript and JavaScript, contributed to Node.js backend development and MongoDB data handling, and supported Stripe-based template purchasing flows. Worked with an existing production codebase, resolved integration issues, participated in code reviews and improved features through team feedback.

React / TypeScript
Node.js
MongoDB
Stripe
Web Application Development
Code Review

MAY 2024JUL 2024

Dvigunity — Data Engineer

Automation · Data workflows · Full-time

Developed automation and data processing solutions using Python and Microsoft Power Platform, built workflow integrations with Azure Logic Apps, designed internal data flows and reporting pipelines, and contributed to frontend feature development and client-side integrations.

Python
Power Platform
Azure Logic Apps
Data Flows
Reporting