Senior Full-Stack Developer
Freiburg, Germany
+49 176 8826 9966
info@saeidmohadjer.com
Senior Full-Stack Developer with 15+ years of experience delivering web platforms, e-commerce solutions, mobile applications, APIs and content-driven websites. I help companies turn ideas and complex requirements into accessible, reliable products, from architecture and development through deployment and long-term maintenance. My experience spans healthcare, e-commerce, enterprise platforms and applications with complex workflows.
Services
Available for end-to-end projects, technical leadership, product development, modernization and ongoing development support.
- Full-stack web application development
- Frontend architecture and modernization
- E-commerce and Shopware development
- React Native mobile application development
- API development and third-party integrations
- Accessibility, responsive design and performance
- Deployment, maintenance and technical consulting
Technical Skills
- Frontend engineering
- TypeScript, JavaScript, React, React Router, Redux Toolkit, TanStack Query, HTML, CSS, SCSS
- Accessibility and web standards
- Accessibility (WCAG), semantic HTML, responsive design, SEO
- Backend and APIs
- Node.js, Express, PHP, REST APIs, JWT authentication
- Mobile development
- React Native, iOS, Android
- Data, CMS and validation
- MongoDB, MariaDB, Contentful, JSON Schema, Ajv
- Delivery and operations
- GitHub Actions, CI/CD, Vercel
- Development tools
- Git, npm, esbuild, Postman, Figma, Axe DevTools, WAVE
Work Experience
- Freelance Full-Stack Developer Lead full-stack projects for clients in Germany and the US, translating business requirements into production-ready web applications and websites. Own technical strategy, architecture, development, integrations, deployment and ongoing maintenance while working directly with clients and design teams.
- Senior Frontend Developer
Worked on Shopware-based online shops for brands including Cube Bikes and Bosch, and developed, released, and maintained a white-label React Native application for pharmacies on the Apple App Store and Google Play. The application allows customers to read prescriptions from their electronic health insurance cards via NFC and order the prescribed medication directly from their pharmacy.
Letter of Reference (PDF in German) - Freelance Frontend Developer Collaborated with design studios and interactive agencies on developing and maintaining responsive websites and web applications for clients such as Recall InfoLink, Neoperl, Siedle, Union Investment, Roche, Voestalpine, and Sto, among others.
- Frontend Developer
Worked closely with concept and design teams on projects ranging from time-sensitive campaigns to large corporate website relaunches. Developed, tested and debugged UI components and integrated frontends with Java, Python and PHP backends.
Letter of Reference (PDF in German) - Freelance Frontend Developer Collaborated with design and advertising agencies on fast-paced campaigns and award-winning websites, including Webby-honored projects for the Museum of Vancouver and the University of Toronto.
- Senior Interactive Developer Outstanding Achievement for Koloa Landing Website
- Interface Developer Worked on projects for Electronic Arts and Canadian Tourism
Projects
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abzumplatz.de
Founded, designed, developed and continue to operate a web application that helps tennis clubs in Germany manage court reservations and club members.
Education
Doctor of Medicine (M.D.), Tehran University of Medical Sciences, Tehran, Iran
Languages
English (Fluent), German (C1), Persian (Native)