Freelancer profile translated to English.
Back to original languageAbout Yasin
Do you need a website that loads quickly, works on all devices, and turns visitors into customers — but without agency prices and months of waiting?
I develop modern websites with Next.js for small and medium-sized businesses. Individually programmed, no WordPress, no builders, no off-the-shelf templates.
My packages:
→ Website Relaunch (from €3,200) — up to 5 pages, responsive, SEO-optimized
→ Landing Page (from €1,500) — one page, optimized for conversions
→ Onepager (from €800) — compact presence in a single-scroll design
What you get with me: Fixed price, clear scope, implementation in 1–3 weeks, one point of contact from start to finish. Every page achieves a Lighthouse Score of 90+ and is optimized for search engines.
I particularly support service providers, e-commerce companies, and agencies that want a professional web presence without hiring their own developer.
My full-time job is as a Software Developer with several years of experience in full-stack development — I bring this quality to every freelance project.
German
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- dataholix solutions GmbHFull-Stack DeveloperDIGITAL AND ITApril 2024 - November 2025 (1 year and 7 months)München, GermanyExperience from main occupation as AI Developer (not offered as freelance service):→ Multi-Agent Platform: Architecture and development of a scalable platform for decentralized AI collaboration (50+ agents, 99.9% uptime). Rust, gRPC, Event-Driven Architecture.→ Enterprise RAG System: Implementation of a Retrieval-Augmented Generation system for 10,000+ documents/day — 85% higher answer accuracy, 70% faster processing. Python, LangChain, LlamaIndex, pgvector.→ Self-Optimizing Coding Agents: Development of automated code review agents with 92% accuracy and 40% time savings. Python, OpenAI API, AST Parsing.→ Full-Stack Control Platform: React 18, Next.js 14, TypeScript, NestJS — Real-time monitoring and visual workflow creation for 100+ parallel agent processes.
- LOBECO GmbHAI DeveloperSOCIAL NETWORKSNovember 2025 - Today (9 months)München, Germany- Development and further development of the SaaS platform CorporateGPT — an enterprise solution that enables companies to safely use AI language models to optimize internal processes- Architecture and implementation of a scalable multi-agent platform for decentralized AI collaboration (50+ specialized agents, 99.9% uptime, autonomous agent-to-agent communication)Tech: Rust, gRPC, Message Queuing, Event-Driven Architecture- Building an Enterprise RAG system for knowledge-based document processing — increasing answer accuracy by 85% with 10,000+ documents/day, reducing processing time by 70%Tech: Python, LangChain, LlamaIndex, pgvector, ChromaDB, PostgreSQL- Development of self-optimizing coding agents for automated code reviews using fine-tuning and prompt engineering — 92% accuracy, 40% time savings in the development teamTech: Python, OpenAI API, AST Parsing, Custom Evaluation Metrics- Realization of a full-stack control platform for agent orchestration with real-time monitoring and visual workflow creation (100+ parallel processes)Tech: React 18, Next.js 14, TypeScript, NestJS, WebSockets, Tailwind CSS, shadcn/ui
- THING TECHNOLOGIES GMBHJunior Frontend DeveloperSOFTWARE PUBLISHINGApril 2023 - March 2024 (11 months)Frankfurt am Main, Germany• Development of 15+ new features for the Thing-IT Mobile App — independently from concept to deployment, increasing user engagement by 30% and reducing support requests by 25%Tech: Angular 17, TypeScript, RxJS, SCSS, REST APIs• Optimization of app performance through systematic refactoring and code splitting — 40% faster loading times and 50% reduction in bundle sizeTech: Webpack Optimization, Lazy Loading, Change Detection Strategies• Establishment of technical documentation and best practices for an 8-person development team — shortening onboarding time for new developers from 4 to 2 weeksTech: Confluence, JSDoc, Angular Style Guide, Git Workflow• Conducting 200+ code reviews and identifying critical performance bottlenecks — preventing 5 potential production bugs before releaseTech: GitLab MR Reviews, SonarQube, Chrome DevTools
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Education
- Bachelor of Science in InformaticsTechnische Hochschule Rosenheim2021Schwerpunkte: - Software Engineering & Algorithmen/Datenstrukturen - Full-Stack-Entwicklung mit Java, Python, C++ und JavaScript/TypeScript - IT-Sicherheit und Software-Architektur - Agile Projektmanagement-Methoden (Scrum) Praxisprojekte: - Studenten-Dashboard (PWA): Entwickelte Progressive Web App für 2.000+ Studierende mit React/Next.js zur Echtzeit-Anzeige von Mensa-Daten, Offline-Funktionalität und Push- Benachrichtigungen - Microservices-Plattform: Architektierte verteilte Event-Driven- Architektur mit 5 Services (Node.js/Python), Docker- Orchestrierung und automatisiertem CI/CD-Pipeline via GitLab - IoT-Datenanalyse-System: Implementierte Echtzeit- Datenverarbeitung für Wetter-Sensordaten mit Apache Kafka, Python und PostgreSQL - verarbeitete 100.000+ Events/Tag