Suman S.

I am a Full-Stack Lead Architect and Security Specialist with over 7 years of experience building high-performance web applications, scalable backend systems, and secure blockchain infrastructure. I help startups, Web3 teams, and enterprise clients design robust software architectures, integrate complex APIs, and conduct end-to-end security audits to protect digital assets. ⚡ Core Technical Stack: • Web3 & Blockchain: Smart Contract Auditing, Ethereum, Cardano, DeFi Applications, P2P & Crypto Payment Integrations • Security & QA: Web & Smart Contract Security Audits, Penetration Testing, Code Review, OWASP Top 10, OPSEC • Backend: Node.js, C# / .NET, Python, PHP, REST & GraphQL APIs • Frontend: React, Next.js, AngularJS, Vue.js, TypeScript, Tailwind CSS • Cloud & DevOps: AWS, Google Cloud, Hetzner, Docker, CI/CD Pipelines (GitHub Actions, GitLab) • Databases: PostgreSQL, MongoDB, SQL Server, Neo4j 🛠 AI-Accelerated Development: I leverage modern development tools (Cursor IDE, AI workflows) to accelerate code reviews, refactor complex systems, and deliver production-ready features faster without compromising on security or code quality. Whether you need a full-stack Web3 platform built from scratch, high-throughput backend APIs, or a complete smart contract & application security audit before launch, I deliver enterprise-grade results. Let’s connect and discuss your project requirements! Disclaimer: For the safety and security of all parties, I only communicate and conduct business through Upwork. Please do not request communication outside of this platform. This ensures interactions remain fully protected and compliant with Upwork policies.