Senior Frontend Engineer | React & Next.js Specialist | TypeScript & Component-Driven Architecture
Aktualisiert am 22.05.2026
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 22.05.2026
Verfügbar zu: 100%
davon vor Ort: 20%
React
TypeScript
JavaScript
Next.js
Front-End
HTML5
CSS3
Redux
Zustand
REST
Material UI
Styled Components
TailwindCSS
Sass
Jest
Git
Cypress
Playwright
Scrum
Webpack
GraphQL
Vite
CI/CD
Bulgarian
Native
English
Proficient
German
Intermediate

Einsatzorte

Einsatzorte

Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

1 Jahr 9 Monate
2024-02 - 2025-10

Software Update Management System

Senior React Developer React TypeScript Material UI (Custom Library) ...
Senior React Developer
  • Developed the frontend of the Software Update Management System (SUMS), a key module within the SCALAR ecosystem for managing vehicle Software lifecycles.
  • Implemented UI features designed to support compliance with UN Regulation No. 156, focusing on the accurate visualization of software versions and update histories for global fleets.
  • Architected the SUMS module as a standalone micro-frontend, allowing for independent deployment and seamless integration into the main SCALAR platform.
  • Built a scalable UI using Atomic Design principles, creating a library of reusable components to ensure consistency across the fleet management dashboard.
  • Engineered real-time monitoring interfaces for Over-the-Air (OTA) updates, providing operators with clear visibility into mission-critical firmware deployments.
  • Integrated TanStack Query to manage server state, ensuring high data consistency between the frontend and the automotive backend services.
  • Maintained high code quality and reliability through extensive unit and integration testing (Jest/Vitest) of complex update workflows.
  • Collaborated effectively with international cross-functional teams, ensuring that technical frontend solutions aligned with the rigorous standards of the automotive industry.
  • Mentored and onboarded team members, providing technical guidance on React best practices, state management, and effective TypeScript patterns
React TypeScript Material UI (Custom Library) Webpack 5 (Module Federation) TanStack Query Jest Vitest Azure DevOps (CI/CD) Git
ZF Friedrichshafen AG
Friedrichshafen
2 Jahre 3 Monate
2021-09 - 2023-11

Building a Professional network

Founder/ Independent Consultant
Founder/ Independent Consultant
  • Focused on building a Professional network in the Middle East market by connecting with business owners to discuss software development needs.
  • Sourced and coordinated software contractors for various project opportunities, ensuring a match between client requirements and technical talent.
  • Managed the communication between business stakeholders and developers, handling initial requirement gathering and project coordination.

on request
4 Jahre 4 Monate
2017-05 - 2021-08

Developement the frontend for a warehouse management system,

Frontend developer React.js (Hooks & Class Components) JavaScript (ES6+) TypeScript ...
Frontend developer
  • Logistics & Inventory Management (Germany): Developed the frontend for a warehouse management system, implementing unique serial number tracking and automated dispatching workflows for global stock items.
  • Automotive Process Flow System (Germany): Built a cross-platform (Web & Tablet) management tool for auto repair cycles, focusing on real-time coordination between mechanics, suppliers, and insurance providers.
  • Fintech & Digital Banking (London, UK): Developed core modules for a cross-border payment app using React Native, including currency conversion logic, card security controls, and interactive expense dashboards.
  • Renewable Energy Platform (Germany): Contributed to an established ERP/CRM and crowd-investing platform, developing complex modules for tracking project performance and automated investor payments.
  • Event Registration & Management System (German Automotive Brand)
  • Automated Banner Creation Platform (Global Beverage Corporation)
  • Ad-Tech Performance & Affiliate Tracking Platform
  • Digital Publishing & Assets Management Web-Platform
  • Interactive Selfie Machine - IoT platform for real-time green-screen photo processing, editing, and social media sharing via large-scale touch displays
React.js (Hooks & Class Components) JavaScript (ES6+) TypeScript jQuery GraphQL Redux Context API React Native REST APIs (Axios) HTML5 CSS3 Sass/SCSS Styled Components Material UI React Hook Form Webpack Babel Git npm/yarn
Infoleven
Sofia, Bulgaria (Hybrid)

Aus- und Weiterbildung

Aus- und Weiterbildung

2014 - 2018

Bachelor of Information Systems

Sofia University, Sofia, Bulgaria

Kompetenzen

Kompetenzen

Top-Skills

React TypeScript JavaScript Next.js Front-End HTML5 CSS3 Redux Zustand REST Material UI Styled Components TailwindCSS Sass Jest Git Cypress Playwright Scrum Webpack GraphQL Vite CI/CD

Produkte / Standards / Erfahrungen / Methoden

Profile

Senior Frontend Developer with 6 years of experience, specializing in building robust web applications with React and TypeScript. A highly eff ective communicator with a proven track record of collaborating across 10+ international teams to deliver high-quality products. Expert in architecting scalable interfaces and translating complex business needs into clean, maintainable code, while ensuring seamless synergy within distributed global environments.


TECHNICAL SKILLS

Frontend Technologies:

  • React
  • React Native
  • Next.js
  • jQuery
  • Web Components
  • REST APIs
  • GraphQL
  • Redux Toolkit
  • TanStack Query
  • Material UI
  • Sass
  • Styled Components
  • Tailwind CSS


Testing:

  • Jest
  • Vitest
  • Unit/Integration Testing


Tools & Process:

  • Git
  • GitLab
  • Vite
  • Webpack
  • CI/CD
  • Jira
  • Trello
  • Agile (Scrum)

Programmiersprachen

JavaScript
ES6+
TypeScript
HTML5
CSS3

Einsatzorte

Einsatzorte

Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

1 Jahr 9 Monate
2024-02 - 2025-10

Software Update Management System

Senior React Developer React TypeScript Material UI (Custom Library) ...
Senior React Developer
  • Developed the frontend of the Software Update Management System (SUMS), a key module within the SCALAR ecosystem for managing vehicle Software lifecycles.
  • Implemented UI features designed to support compliance with UN Regulation No. 156, focusing on the accurate visualization of software versions and update histories for global fleets.
  • Architected the SUMS module as a standalone micro-frontend, allowing for independent deployment and seamless integration into the main SCALAR platform.
  • Built a scalable UI using Atomic Design principles, creating a library of reusable components to ensure consistency across the fleet management dashboard.
  • Engineered real-time monitoring interfaces for Over-the-Air (OTA) updates, providing operators with clear visibility into mission-critical firmware deployments.
  • Integrated TanStack Query to manage server state, ensuring high data consistency between the frontend and the automotive backend services.
  • Maintained high code quality and reliability through extensive unit and integration testing (Jest/Vitest) of complex update workflows.
  • Collaborated effectively with international cross-functional teams, ensuring that technical frontend solutions aligned with the rigorous standards of the automotive industry.
  • Mentored and onboarded team members, providing technical guidance on React best practices, state management, and effective TypeScript patterns
React TypeScript Material UI (Custom Library) Webpack 5 (Module Federation) TanStack Query Jest Vitest Azure DevOps (CI/CD) Git
ZF Friedrichshafen AG
Friedrichshafen
2 Jahre 3 Monate
2021-09 - 2023-11

Building a Professional network

Founder/ Independent Consultant
Founder/ Independent Consultant
  • Focused on building a Professional network in the Middle East market by connecting with business owners to discuss software development needs.
  • Sourced and coordinated software contractors for various project opportunities, ensuring a match between client requirements and technical talent.
  • Managed the communication between business stakeholders and developers, handling initial requirement gathering and project coordination.

on request
4 Jahre 4 Monate
2017-05 - 2021-08

Developement the frontend for a warehouse management system,

Frontend developer React.js (Hooks & Class Components) JavaScript (ES6+) TypeScript ...
Frontend developer
  • Logistics & Inventory Management (Germany): Developed the frontend for a warehouse management system, implementing unique serial number tracking and automated dispatching workflows for global stock items.
  • Automotive Process Flow System (Germany): Built a cross-platform (Web & Tablet) management tool for auto repair cycles, focusing on real-time coordination between mechanics, suppliers, and insurance providers.
  • Fintech & Digital Banking (London, UK): Developed core modules for a cross-border payment app using React Native, including currency conversion logic, card security controls, and interactive expense dashboards.
  • Renewable Energy Platform (Germany): Contributed to an established ERP/CRM and crowd-investing platform, developing complex modules for tracking project performance and automated investor payments.
  • Event Registration & Management System (German Automotive Brand)
  • Automated Banner Creation Platform (Global Beverage Corporation)
  • Ad-Tech Performance & Affiliate Tracking Platform
  • Digital Publishing & Assets Management Web-Platform
  • Interactive Selfie Machine - IoT platform for real-time green-screen photo processing, editing, and social media sharing via large-scale touch displays
React.js (Hooks & Class Components) JavaScript (ES6+) TypeScript jQuery GraphQL Redux Context API React Native REST APIs (Axios) HTML5 CSS3 Sass/SCSS Styled Components Material UI React Hook Form Webpack Babel Git npm/yarn
Infoleven
Sofia, Bulgaria (Hybrid)

Aus- und Weiterbildung

Aus- und Weiterbildung

2014 - 2018

Bachelor of Information Systems

Sofia University, Sofia, Bulgaria

Kompetenzen

Kompetenzen

Top-Skills

React TypeScript JavaScript Next.js Front-End HTML5 CSS3 Redux Zustand REST Material UI Styled Components TailwindCSS Sass Jest Git Cypress Playwright Scrum Webpack GraphQL Vite CI/CD

Produkte / Standards / Erfahrungen / Methoden

Profile

Senior Frontend Developer with 6 years of experience, specializing in building robust web applications with React and TypeScript. A highly eff ective communicator with a proven track record of collaborating across 10+ international teams to deliver high-quality products. Expert in architecting scalable interfaces and translating complex business needs into clean, maintainable code, while ensuring seamless synergy within distributed global environments.


TECHNICAL SKILLS

Frontend Technologies:

  • React
  • React Native
  • Next.js
  • jQuery
  • Web Components
  • REST APIs
  • GraphQL
  • Redux Toolkit
  • TanStack Query
  • Material UI
  • Sass
  • Styled Components
  • Tailwind CSS


Testing:

  • Jest
  • Vitest
  • Unit/Integration Testing


Tools & Process:

  • Git
  • GitLab
  • Vite
  • Webpack
  • CI/CD
  • Jira
  • Trello
  • Agile (Scrum)

Programmiersprachen

JavaScript
ES6+
TypeScript
HTML5
CSS3

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