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Open to job opportunities and freelance projects

Andrey Chernyakov

Full-Stack Developer

Building fast web applications and backend services since 2018. Focused on clean code, responsive user interfaces, and reliable systems.

Get in TouchDownload CV (PDF)
Andrey Chernyakov
8 years
Experience
Chebyrnet
Key Project
REST · WS
Architecture
TS · Nest
Stack

About Me

Hands-on developer with 8 years of experience in modern web development. I write clean, maintainable code and deliver practical solutions to production.

I work across both the frontend (Next.js, React, responsive layouts, performance optimization) and backend (NestJS, Node.js, database schema design, and REST APIs).

I appreciate simplicity and avoid unnecessary complexity: in projects, I strive for predictable architectures, strict TypeScript typing, and adherence to accessibility standards.

Experience

8 years of commercial software development across product teams and projects

2022 — Present

Full-Stack Developer

Chebyrnet Music & Ecosystem · Remote
  • Developed and maintained the web player for the music streaming platform using Next.js and React.
  • Implemented synchronized karaoke lyric display in real-time.
  • Built backend endpoints for the track catalog, artist profiles, and user playlists in NestJS.
  • Integrated object S3 storage and configured HLS audio streaming.
Next.jsReactTypeScriptNestJSTailwind CSSPostgreSQLRedisDockerhls.js
2020 — 2022

Full-Stack Developer

Web Services & Portals · Remote
  • Developed customer portals and web interfaces with JWT authentication.
  • Created REST API endpoints on Node.js and Express.
  • Covered core business logic with automated unit and integration tests.
ReactTypeScriptNode.jsExpressPostgreSQLDockerTailwind CSS
2018 — 2020

Frontend Developer

Web Applications & UI · Saint Petersburg
  • Built responsive layouts according to design systems with accessibility and touch device support.
  • Developed reusable UI components and forms with validation.
  • Migrated codebases to TypeScript and refactored components.
JavaScriptTypeScriptReactReduxHTML5CSS3 / SCSSWebpack

Technology Stack

Practical technology stack for building high-throughput and reliable systems

01

Frontend

User interfaces with React and Next.js: responsive layouts, state handling, and performance tuning.

  • Next.js
    App Router, SSR, SSG, static export
  • React
    Hooks, state management, lifecycle
  • TypeScript
    Strict typing, interfaces, contracts
  • Tailwind CSS
    Utility-first classes, themes, fluid grid
02

Backend & APIs

Server applications with NestJS and Node.js: REST API design, authentication, and WebSockets.

  • NestJS / Node.js
    Modules, controllers, services, guards
  • REST API & WebSocket
    Clean API contracts, real-time events
  • Authentication
    JWT, session validation, RBAC
  • hls.js & Streaming
    Audio streaming and buffering
03

Databases & Cache

Relational schema design, Prisma migrations, and session caching in Redis.

  • PostgreSQL
    Schema design, queries, relations
  • Prisma ORM
    Data modeling, type-safe queries
  • Redis
    In-memory caching and session state
  • SQL
    Query optimization and indexes
04

DevOps & Quality

Application containerization with Docker, Nginx routing, Git collaboration, and automated testing.

  • Docker & Compose
    Multi-stage builds, isolation
  • Git & GitLab
    Feature branches, Merge Requests, Code Review
  • Nginx
    Reverse proxy, host routing
  • Testing
    Vitest, Jest, Playwright

Projects

Selected practical projects and applications I have worked on

Active Project2022 — Present

Chebyrnet Music

Streaming music web application with synchronized lyrics and recommendations

Role
Full-Stack Developer
Period
2022 — Present
Status
Production
Stack
Next.js · NestJS · Redis
Challenge

The project needed a web player that plays audio streams via HLS and displays lyrics in sync with playback.

Solution

Engineered the frontend player with HLS streaming support, optimized lyric rendering, and implemented catalog backend APIs backed by PostgreSQL and Redis.

Next.jsReactTypeScriptNestJSTailwind CSSPostgreSQLRedisDockerhls.js
DemoView Project Details
In Development2024 — Present

Real-time Voice Rooms

Lightweight browser voice chat service for small teams

Role
Full-Stack Developer
Period
2024 — Present
Status
In Development
Stack
WS · NestJS · React
Challenge

Required a lightweight, self-hosted voice chat option without relying on heavy third-party vendor platforms.

Solution

Implemented frontend microphone capture combined with a WebSocket signaling server to coordinate room participants.

TypeScriptWebSocketNestJSReactDocker
View Project Details
In Production2023 — Present

Authentication & Account Service

Centralized login and user profile management

Role
Full-Stack Developer
Period
2023 — Present
Status
Production
Stack
JWT · Redis · NestJS
Challenge

Needed a unified account system across multiple internal web applications with simple login flows.

Solution

Developed an authentication service with Access and Refresh tokens, session validation via Redis, and a clean profile UI.

NestJSPostgreSQLRedisTypeScriptDocker
View Project Details

Services & Collaboration

How I can help your team or web project

01

Frontend Development (React / Next.js)

Building modern interfaces, responsive styling from Figma designs, component refactoring, speed optimization, and API integration.

Deliverables:
  • Responsive, accessible layouts matching designs
  • Integration with REST APIs
  • Clean TypeScript code without duplication
02

Backend Development (NestJS / Node.js)

Building server applications, database schema modeling, REST API endpoints, user authentication, and validation.

Deliverables:
  • Well-documented REST API endpoints
  • PostgreSQL schemas with Prisma migrations
  • Input validation and proper error handling
03

Project Maintenance & Improvements

Bug fixing, adding new features, and setting up Docker Compose for smooth local development.

Deliverables:
  • Fixing UI issues and backend bugs
  • Setting up Docker Compose environments
  • Unit and integration test coverage

How I Work

011–2 days

Task Discussion

Aligning on requirements, deliverables, timeline, and tech stack.

021–2 days

Implementation Plan

Breaking tasks into clear milestones and agreeing on the scope.

03Sprint-based

Development

Writing clean code, providing regular progress updates, and answering questions.

04Final step

Delivery & Review

Reviewing results, addressing feedback, and merging code into your repository.

Engagement Terms

Remote work. Full-time or part-time in team, or fixed-scope per agreed milestone.

Clear task description, designs/mockups (if available), and timely communication.

Message on Telegram

Contact

Open to team opportunities and freelance development. I reply promptly.

Direct Channels

The fastest way to reach me is Telegram. You can also send project briefs, specs, or invitations via the direct form.

TG
Telegram
@xarlay
GL
GitLab
gitlab.com/xarlay
@
Email
xarlayytgmail.com

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