I'm a Full-Stack Developer with 8+ years of experience building high-performance, scalable applications. Currently focused on backend systems, microservices architecture, and blockchain/DeFi technologies.

• 🏗️ Building secure backend integrations at HeyFlow GmbH
• 🔗 Exploring advanced DeFi protocols and smart contract development
• 📈 Optimizing system performance and implementing monitoring solutions
• 🌍 Preparing to relocate to Dubai for new opportunities

• Backend Architecture: Designed microservices handling 10,000+ concurrent users
• Performance: Achieved 60-80% response time improvements across multiple projects
• Blockchain: Built NFT marketplaces and multi-chain crypto wallets
• Security: Implemented secure authentication systems and resolved critical vulnerabilities
• Scale: Processed millions of environmental data points with optimized pipelines

Lead Full-Stack Developer

• Built Ethereum smart contracts for NFT marketplace using Solidity
• Implemented EIP-712 for secure off-chain signatures
• Developed complete Web3 integration layer
• Tech: Solidity, Web3.js, React.js, Node.js

Blockchain Developer

• Developed multi-chain crypto wallet supporting tokens and NFTs
• Implemented secure key management and transaction signing
• Built blockchain abstraction layer for seamless chain switching
• Tech: React Native, Web3, Multiple Chain SDKs

Senior Software Engineer

• Architected microservices with NestJS and RabbitMQ
• Optimized PostgreSQL queries (40% improvement)
• Implemented comprehensive monitoring with Prometheus/Grafana
• Tech: NestJS, TypeScript, PostgreSQL, Docker, Kubernetes

Full-Stack Developer

• Built high-performance backend handling geo-located data
• Implemented Redis caching (60% response time reduction)
• Developed real-time data processing pipeline
• Tech: Node.js, MongoDB, Redis, React.js, Leaflet

I'm seeking opportunities to work on:

• DeFi protocols and blockchain infrastructure
• High-performance backend systems at scale
• Microservices architecture with modern monitoring
• Web3 integration and smart contract development

• 🏅 Top Rated Freelancer on Upwork for 6 consecutive years
• 🚀 Reduced API response times by 60-80% across multiple projects
• 👥 Built systems handling 10,000+ concurrent users
• 🔍 Cut incident detection time by 75% with monitoring solutions
• 💼 Successfully delivered 20+ production applications

• Advanced Solidity patterns and DeFi protocols
• Rust for system programming
• Advanced Kubernetes orchestration
• Zero-knowledge proofs and Layer 2 solutions

I'm always interested in discussing:

• Blockchain and DeFi innovations
• Backend architecture and scalability
• Performance optimization techniques
• Open source collaboration

Feel free to reach out if you want to discuss technology, potential collaborations, or exciting opportunities!