I'm a passionate Software Engineer specializing in Fullstack Development, Web3, and AI Engineering. Based in Medan, Indonesia, I build innovative solutions that bridge cutting-edge technologies with real-world impact. My journey includes crafting PoS systems for SMEs, contributing to university IT systems, and competing in ETHGlobal hackathons in Singapore and Bangkok. Iβm driven by a love for clean code, decentralized tech, and AI-driven innovation.
π Portfolio: marcofernandio.netlify.app
π« Email: marcofernandioo@gmail.com
π± WhatsApp: +62 821-728-42911
- π Software Engineering Graduate with hands-on experience in React, Node.js, and MongoDB.
- π οΈ Built custom PoS systems for SMEs and internal tools for Asia Pacific University.
- π Participated in ETHGlobal Hackathons (Singapore Sep 2024 & Bangkok Nov 2024), focusing on Web3 solutions like ERC-4337, The Graph, and LangChain.
- π‘ Passionate about Web3, AI, and creating user-friendly, scalable applications.
| Category | Technologies |
|---|---|
| General | JavaScript, Python, TypeScript, SQL, RESTful APIs, GraphQL, Docker |
| Web Development | React, Next.js, AngularTS, Express, FastAPI, Django, MongoDB |
| Blockchain | Hardhat, Viem, Wagmi, The Graph, 1inch, Uniswap, Phala Network |
| AI Engineering | MCP, OpenAI SDK, Google ADK, RAG, LangChain |
- ETHGlobal Bangkok 2024: Built a webapp to simplify Web3 transactions using ENS URLs and gas fee sponsorship.
- Tech: Privy Smart Wallet, ENS, Wagmi, Viem, Biconomy, Solidity, Scroll L2, Base L2.
- Impact: Enhanced user onboarding for Web3 with gasless transactions.
- ETHGlobal Singapore 2024: Developed a dApp for natural language querying of Uniswap Subgraph data with visual charts.
- Tech: The Graph, LangChain-TS, Phala Network, Node.js.
- Impact: Deepened understanding of subgraphs and LLM-blockchain integration.
- Built a web-based tool for real estate agents to automate social media content.
- Tech: React, Express, Netlify.
- Impact: Saved businesses $100+/week.
- Sparepart Warehouse Manager @ Multi Forklift, Toyota Forklift Dealer (Jan 2024 - Present)
- Learned the intricacies of the heavy machinery sparepart business in Indonesia.
- Developed internal tools to track locations of spareparts and create product orders easily.
- Research & Development Member @ Asia Pacific University, Malaysia (Sep 2023 β Sep 2024)
- Developed internal tools, optimized intake planning productivity by 20%, and automated backup scripts (50% less manual work).
- Freelance Web Developer @ Multiple SMEs, Medan, Indonesia (Jan 2021 β Sep 2022)
- Delivered 5 PoS systems & landing pages for retailers, improving transaction and inventory processes.
- ETHGlobal Hackathons: Competed in Singapore (Sep 2024) and Bangkok (Nov 2024), building innovative Web3 solutions.
- Freelance Success: Sold software to 5 businesses, including PoS systems and landing pages.
- University Impact: Enhanced campus systems with user-friendly UI/UX and reliable data access tools.
- GitHub: marcofernandioo
- Portfolio: marcofernandio.netlify.app
- Email: marcofernandioo@gmail.com
- WhatsApp: +62 821-728-42911
π¬ Letβs collaborate on Web3, AI, or fullstack projects!


