Software Development / Full Stack Engineering
Aktualisiert am 23.03.2026
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 01.04.2026
Verfügbar zu: 100%
davon vor Ort: 0%
React
TypeScript
.NET
Next.js
Node.js
Python
C#
PostgreSQL
Azure
AWS
Docker
Redux
FastAPI
React Native
GraphQL
REST APIs
CI/CD
Micro-Frontends
Storybook
Jest
Playwright
Redis
Russian
Muttersprache
English
Verhandlungssicher
German
A2 (in progress)

Einsatzorte

Einsatzorte

Teningen (+50km)
Deutschland
möglich

Projekte

Projekte

7 months
2025-09 - now

Building production SaaS products

Principal Engineer (Contract)
Principal Engineer (Contract)

Building production SaaS products with AI/LLM integration: warehouse management, German e-invoicing, and AI-powered content automation platform.


SmartWMS (smartwms.one):

  • Built multi-tenant warehouse management SaaS: 40 API modules, 150+ routes, real-time updates via SignalR
  • Technologies: React, TypeScript, Redux Toolkit, RTK Query, Webpack, .NET 8, PostgreSQL, SignalR, Docker, GitHub Actions
  • Landing: Next.js 14, Tailwind CSS, 17 localizations, Stripe payments (SEPA + cards)
  • Testing: xUnit (150+ files), Jest, Playwright E2E. CI/CD: Docker, GitHub Actions
  • Telegram AI agent: daily inventory reports, shipment alerts and warehouse monitoring delivered to mobile


InvoCore (invocore .eu):

  • German e-invoicing SaaS (XRechnung, ZUGFeRD), GDPR compliant, multi-tenant architecture
  • Technologies: React, TypeScript, RTK Query, Python, FastAPI, PostgreSQL, Redis, Celery. Testing: pytest (294 tests), Playwright


Nootee (nootee .com):

  • AI-powered content automation platform: analyzes Git commits, generates and publishes posts to LinkedIn and Discord, responds to GitHub Issues automatically
  • Multi-LLM architecture (OpenAI, Claude, Gemini) ? pluggable provider system, RAG-based knowledge assistant integrated across all SaaS products
Independent Contractor ? Remote, Germany
6 years 7 months
2019-03 - 2025-09

Designed micro-frontend architecture

Senior Full Stack Engineer
Senior Full Stack Engineer

Full-stack engineer across frontend, backend, and mobile ? core contributor to enterprise products serving healthcare professionals in 30+ countries.

  • Designed micro-frontend architecture (Module Federation) adopted across product teams, reducing integration conflicts by 80%
  • Built React component library: 50+ components with Storybook documentation, reducing UI development time by 50%
  • Co-initiated and built React Native apps (iOS + Windows) outside main roadmap ? now in production, generating revenue
  • Led rapid-delivery team that shipped critical Finance & Invoicing modules in 2 months 
  • Reduced bundle sizes by ~40%, improved page load performance
  • Modernized legacy modules into maintainable React / TypeScript codebase with 90% test coverage


Leadership:

  • Acted as unofficial Tech Lead ? owned most complex features from design to delivery
  • Mentored junior developers, led architectural discussions with Lead Architect and PO
  • Core architectural patterns I designed became foundation for system-wide refactoring

Auditdata ? Remote (EU)
1 year
2018-04 - 2019-03

Developed real-time gaming interfaces for Evolution Gaming

Javascript Engineer
Javascript Engineer

Developed real-time gaming interfaces for Evolution Gaming ? global leader in live casino products.

  • Built high-performance UIs using React, TypeScript, Redux for live streaming environments
  • Developed modular components with Jest/Enzyme test coverage
  • Optimized Webpack builds, improved load times and animation performance
NewGround LLC (Evolution Gaming) | Kyiv, Ukraine
1 year 11 months
2016-06 - 2018-04

Built front-end architecture

Frontend Software Engineer
Frontend Software Engineer
  • Built front-end architecture using React, Angular 4, Redux, TypeScript for IoT platform
  • Developed reusable UI components for scalable, maintainable codebase
KaaIoT (CyberVision) | Kyiv, Ukraine
3 years 5 months
2013-01 - 2016-05

Developed responsive websites and web applications

Frontend Developer
Frontend Developer
  • Developed responsive websites and web applications using HTML, CSS, JavaScript, and jQuery
  • Built CMS-based projects with WordPress and Drupal
  • Implemented UI components and client-facing features for multiple commercial projects
Frontmen Agency, Innovecs ? Kyiv, Ukraine

Aus- und Weiterbildung

Aus- und Weiterbildung

2010 - 2014

Bachelor of Engineering ? Belgorod State University


2002 - 2005

Specialist Degree ? Maikop State Technological University

Kompetenzen

Kompetenzen

Top-Skills

React TypeScript .NET Next.js Node.js Python C# PostgreSQL Azure AWS Docker Redux FastAPI React Native GraphQL REST APIs CI/CD Micro-Frontends Storybook Jest Playwright Redis

Produkte / Standards / Erfahrungen / Methoden

PROFESSIONAL SUMMARY

Senior React / Full Stack Engineer with 13+ years building enterprise web applications. EU work authorization ? no visa sponsorship required. Expertise in React, Next.js, TypeScript, Node.js, and .NET. Deep background in micro-frontend architecture, cloud deployment (Azure, AWS), CI/CD, and high-performance UI systems. Agile, Scrum, TDD.


TECHNICAL SKILLS

  • Frontend: React, Next.js, Redux, Redux Toolkit, RTK Query, TypeScript, JavaScript, HTML5, CSS3, Tailwind CSS, Material UI, Storybook, Jest, React Testing Library, Playwright, Webpack, Vite
  • Backend: Node.js, Express.js, Python, FastAPI, C#, .NET 8, ASP.NET Core, Entity Framework Core, REST APIs, GraphQL, WebSockets, SignalR
  • Cloud & DevOps: Microsoft Azure, AWS (S3, EC2, CloudFront), Azure DevOps, GitHub Actions, CI/CD pipelines, Docker, Nginx, Sentry
  • Mobile: React Native (iOS, Android, Windows)
  • Architecture: Micro-frontends, Module Federation, Microservices, Multi-tenant systems, Vertical slices, Component libraries, Design systems, Accessibility (WCAG 2.1, a11y, ARIA), Agile, Scrum, Kanban, TDD, System Design
  • AI/LLM: OpenAI API, Claude (Anthropic), Gemini, multi-LLM architecture, prompt engineering, dynamic prompt generation, RAG, AI agents, Telegram bot integration, LLM-powered workflow automation

Datenbanken

PostgreSQL
Azure SQL
MySQL
MongoDB
Redis

Einsatzorte

Einsatzorte

Teningen (+50km)
Deutschland
möglich

Projekte

Projekte

7 months
2025-09 - now

Building production SaaS products

Principal Engineer (Contract)
Principal Engineer (Contract)

Building production SaaS products with AI/LLM integration: warehouse management, German e-invoicing, and AI-powered content automation platform.


SmartWMS (smartwms.one):

  • Built multi-tenant warehouse management SaaS: 40 API modules, 150+ routes, real-time updates via SignalR
  • Technologies: React, TypeScript, Redux Toolkit, RTK Query, Webpack, .NET 8, PostgreSQL, SignalR, Docker, GitHub Actions
  • Landing: Next.js 14, Tailwind CSS, 17 localizations, Stripe payments (SEPA + cards)
  • Testing: xUnit (150+ files), Jest, Playwright E2E. CI/CD: Docker, GitHub Actions
  • Telegram AI agent: daily inventory reports, shipment alerts and warehouse monitoring delivered to mobile


InvoCore (invocore .eu):

  • German e-invoicing SaaS (XRechnung, ZUGFeRD), GDPR compliant, multi-tenant architecture
  • Technologies: React, TypeScript, RTK Query, Python, FastAPI, PostgreSQL, Redis, Celery. Testing: pytest (294 tests), Playwright


Nootee (nootee .com):

  • AI-powered content automation platform: analyzes Git commits, generates and publishes posts to LinkedIn and Discord, responds to GitHub Issues automatically
  • Multi-LLM architecture (OpenAI, Claude, Gemini) ? pluggable provider system, RAG-based knowledge assistant integrated across all SaaS products
Independent Contractor ? Remote, Germany
6 years 7 months
2019-03 - 2025-09

Designed micro-frontend architecture

Senior Full Stack Engineer
Senior Full Stack Engineer

Full-stack engineer across frontend, backend, and mobile ? core contributor to enterprise products serving healthcare professionals in 30+ countries.

  • Designed micro-frontend architecture (Module Federation) adopted across product teams, reducing integration conflicts by 80%
  • Built React component library: 50+ components with Storybook documentation, reducing UI development time by 50%
  • Co-initiated and built React Native apps (iOS + Windows) outside main roadmap ? now in production, generating revenue
  • Led rapid-delivery team that shipped critical Finance & Invoicing modules in 2 months 
  • Reduced bundle sizes by ~40%, improved page load performance
  • Modernized legacy modules into maintainable React / TypeScript codebase with 90% test coverage


Leadership:

  • Acted as unofficial Tech Lead ? owned most complex features from design to delivery
  • Mentored junior developers, led architectural discussions with Lead Architect and PO
  • Core architectural patterns I designed became foundation for system-wide refactoring

Auditdata ? Remote (EU)
1 year
2018-04 - 2019-03

Developed real-time gaming interfaces for Evolution Gaming

Javascript Engineer
Javascript Engineer

Developed real-time gaming interfaces for Evolution Gaming ? global leader in live casino products.

  • Built high-performance UIs using React, TypeScript, Redux for live streaming environments
  • Developed modular components with Jest/Enzyme test coverage
  • Optimized Webpack builds, improved load times and animation performance
NewGround LLC (Evolution Gaming) | Kyiv, Ukraine
1 year 11 months
2016-06 - 2018-04

Built front-end architecture

Frontend Software Engineer
Frontend Software Engineer
  • Built front-end architecture using React, Angular 4, Redux, TypeScript for IoT platform
  • Developed reusable UI components for scalable, maintainable codebase
KaaIoT (CyberVision) | Kyiv, Ukraine
3 years 5 months
2013-01 - 2016-05

Developed responsive websites and web applications

Frontend Developer
Frontend Developer
  • Developed responsive websites and web applications using HTML, CSS, JavaScript, and jQuery
  • Built CMS-based projects with WordPress and Drupal
  • Implemented UI components and client-facing features for multiple commercial projects
Frontmen Agency, Innovecs ? Kyiv, Ukraine

Aus- und Weiterbildung

Aus- und Weiterbildung

2010 - 2014

Bachelor of Engineering ? Belgorod State University


2002 - 2005

Specialist Degree ? Maikop State Technological University

Kompetenzen

Kompetenzen

Top-Skills

React TypeScript .NET Next.js Node.js Python C# PostgreSQL Azure AWS Docker Redux FastAPI React Native GraphQL REST APIs CI/CD Micro-Frontends Storybook Jest Playwright Redis

Produkte / Standards / Erfahrungen / Methoden

PROFESSIONAL SUMMARY

Senior React / Full Stack Engineer with 13+ years building enterprise web applications. EU work authorization ? no visa sponsorship required. Expertise in React, Next.js, TypeScript, Node.js, and .NET. Deep background in micro-frontend architecture, cloud deployment (Azure, AWS), CI/CD, and high-performance UI systems. Agile, Scrum, TDD.


TECHNICAL SKILLS

  • Frontend: React, Next.js, Redux, Redux Toolkit, RTK Query, TypeScript, JavaScript, HTML5, CSS3, Tailwind CSS, Material UI, Storybook, Jest, React Testing Library, Playwright, Webpack, Vite
  • Backend: Node.js, Express.js, Python, FastAPI, C#, .NET 8, ASP.NET Core, Entity Framework Core, REST APIs, GraphQL, WebSockets, SignalR
  • Cloud & DevOps: Microsoft Azure, AWS (S3, EC2, CloudFront), Azure DevOps, GitHub Actions, CI/CD pipelines, Docker, Nginx, Sentry
  • Mobile: React Native (iOS, Android, Windows)
  • Architecture: Micro-frontends, Module Federation, Microservices, Multi-tenant systems, Vertical slices, Component libraries, Design systems, Accessibility (WCAG 2.1, a11y, ARIA), Agile, Scrum, Kanban, TDD, System Design
  • AI/LLM: OpenAI API, Claude (Anthropic), Gemini, multi-LLM architecture, prompt engineering, dynamic prompt generation, RAG, AI agents, Telegram bot integration, LLM-powered workflow automation

Datenbanken

PostgreSQL
Azure SQL
MySQL
MongoDB
Redis

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