Jatin Goel

Full Stack Developer & Blockchain Engineer

Freelance / Self-Employed • Freiberufler

Jan 2022 - Present • 4 yrs 4 mos

Over 6+ years of professional experience in Full Stack Development, Blockchain Engineering, and AI Automation. Delivered 100+ projects across diverse industries including fintech, e-commerce, healthcare, and Web3. Key Achievements: - Built and deployed 15+ Solidity smart contracts for DeFi, NFT, and token vesting projects on Ethereum and BSC networks - Developed 10+ AI-powered chatbots using OpenAI GPT-4 and DeepSeek for customer support, lead generation, and business automation - Architected and launched 3 full crypto exchange platforms with wallet integration, trading engine, and admin dashboards - Built 5+ MLM platforms with multi-level referral systems, commission tracking, and crypto payment gateways - Delivered 20+ REST and SOAP API integrations for enterprise clients using Node.js, Laravel, and Python - Designed scalable backend systems handling 50,000+ daily active users using PostgreSQL, MySQL, and Redis - Reduced client operational costs by 60% through intelligent n8n and Zapier automation workflows - Maintained 98% on-time delivery rate with 5-star client satisfaction across all freelance projects

Full Stack Developer

Freelance / Remote Clients • Freiberufler

Jan 2020 - Jan 2022 • 2 yrs

Expanded expertise into full stack development, taking on more complex projects with international clients. Key Responsibilities & Achievements: - Built 15+ full stack web applications using Laravel, Node.js, React, and REST APIs - Developed backend systems with PostgreSQL and MySQL handling thousands of daily transactions - Created custom CMS and e-commerce platforms for clients in USA, UK, and Australia - Started working with API development and integration including payment gateways (Stripe, PayPal, Razorpay) - Began learning blockchain and smart contract development on Ethereum and BSC networks - Improved code performance by 40% through database optimization and caching techniques

Junior Web Developer

Infugin Corporation • Vollzeit

Jan 2018 - Jan 2020 • 2 yrs

Started my professional journey as a Junior Web Developer, working with local businesses and startups to build dynamic websites and web applications. Key Responsibilities & Achievements: - Developed 30+ business websites using HTML, CSS, Bootstrap, php, laravel , ci and JavaScript for both local and overseas clients. - Built dynamic web applications using PHP, CodeIgniter, and Laravel with MySQL database integration - Designed and managed relational databases using MySQL for e-commerce and business management systems - Implemented responsive front-end designs using Bootstrap and CSS for mobile-friendly user experiences - Integrated third-party APIs and payment gateways into client web applications - Delivered all projects on time with positive client feedback and repeat business