Immanuel Janis
Full Stack Engineer | TypeScript Ecosystem | Web3 & AI Solutions
About Me
Full Stack Engineer (2+ Years Experience) specializing in the TypeScript ecosystem with a record of architecting enterprise solutions. Expertise in building scalable monorepo architectures and optimizing system efficiency, resulting in reduced latency and enhanced user engagement. Dedicated to delivering robust, production-ready applications that drive measurable business growth through clean, maintainable code and modern web standards.
Skills & Technologies
Programming Languages
- Javascript
- Typescript
- PHP
- Python
Frontend
- React.js
- Next.js
- Tailwind CSS
- DaisyUI
- shadcn/ui
- Mantine
Backend
- Node.js
- Express.js
- Bun
- Hono
- Flask
- CodeIgniter 4
- Laravel
Mobile
- React Native
Blockchain
- Solidity
- Monad
- Lisk
- Hardhat
- Foundry
DBMS
- MySQL
- MongoDB
- PostgreSQL
- Prisma
- Oracle Database
Tools / Process
- Git
- Redux
- Formik
- React Query
- Zod
- Redis
- Docker
- Zustand
- Github Actions
- SSR/SSG/SPA
- SEO
Work Experience
Developer Engineer
PT. Pelindo Solusi Digital • Mar 2024 - Now
- Engineered internal tools using React.js, Next.js, and Express.js, reducing manual workflow time significantly and increasing team productivity.
- Led the stabilization and bug for critical enterprise systems (Customer Portal, Port Operation, & Billing), ensuring seamless daily operations across 17 branches nationwide.
- Executed onsite stabilization and user training at 2 ports in Indonesia, successfully onboarding 12 operational staff and achieving a 100% adoption rate for the new system.
Fullstack Web Developer
PT. Septa Astha Nawa • Sep 2022 - Nov 2022
- Led a small team and developed the E-Office website for PT Septa Astha Nawa.
- Create a monolithic app using PHP and CodeIgniter 4 framework.
- Implemented features such as document generation (PDF, Excel), QR Code-based digital signatures, and user management with 8 distinct roles.
- Delivered the project with a "Very Satisfied Result" rating from stakeholders.
Featured Projects
LokaPay (RealFi/RWA Payment Infrastructure)
Architected and deployed a Monorepo system using Next.js 15 and Bun Runtime, achieving superior execution speed and memory efficiency. Engineered a custom Real-Time Blockchain Indexer (Background Worker) that continuously scans Mantle & Lisk mempools, enabling sub-second payment detection and instant "Paid" status updates for merchants without polling. Developed the proprietary "Compliance Firewall" engine, a hybrid logic layer that automates the conversion of on-chain Stablecoin (USDT) payments into compliant Local Fiat (IDR) settlement invoices. Implemented a fully automated CI/CD pipeline via GitHub Actions connected to a production VPS, utilizing PM2 for deployments and concurrent process management (API, Web, & Workers).
System and Equipment Readiness (Pelindo Solusi Digital)
Led the entire frontend implementation from Figma slicing to production using Next.js and shadcn/ui to deliver a high-fidelity, responsive, and accessible monitoring dashboard. Designed and engineered Regional and Branch-level views providing consolidated, real-time visibility into the operational health of all deployed applications. Implemented secure, fine-grained access control by integrating directly with the Pelindo User Management API. Transformed complex data streams into actionable, signal over noise metrics, empowering regional operators to immediately identify and diagnose application downtime.
Eyes Wide Open (Company Profile for Animator Agency)
Architected and engineered a high performance, fullstack company profile platform utilizing Next.js (App Router) for the front-end and ExpressJS for robust backend API services, ensuring optimal speed and SEO performance. Implemented a custom, fully responsive UI using shadcn/ui and Tailwind CSS to deliver a minimal, professional aesthetic. Developed a dynamic, custom Admin Dashboard with secure API endpoints, allowing the client to self-manage and update all site content in real-time.
Nautory (Blockchain Seafood Traceability Platform)
Co-founded and developed an end-to-end Web3 supply chain protocol on an EVM-compatible L2 to combat fraud and enhance transparency in the seafood industry. Led the strategy and frontend development for a decentralized application. Engineered a comprehensive solution including Solidity smart contracts for on-chain logic, a Next.js dashboard for business clients, and an offline-first mobile app, successfully solving the critical user adoption challenge through Account Abstraction (ERC-4337). Architected and deployed a suite of modular Solidity smart contracts on an L2 network.
Credura (Blockchain Education Platform)
Built a blockchain-based education platform where users can log in with their wallet, take courses, complete quizzes, and earn rewards like credits (ERC20), badges (ERC1155), and student IDs (ERC721 soulbound). Led product design, user flow, pitching strategy, frontend, integrate with contract. Focused on using Web3 to make learning more rewarding and verifiable. Frontend built with Next.js and deployed on Vercel.
IMZN Technology
Developed a mobile-responsive static company profile website using Next.js. Achieved an average PageSpeed Insights score of 98.6.
IMZN Reservation Hotel (Final Year Project School)
Built a hotel reservation web application using Python, Flask, and MySQL. Integrated Midtrans Payment Gateway for seamless transactions. Features included user/admin management, room booking, discounts, payment processing, and receipt generation (PDF). Received a score of 97/100 from external examiners.
E-Vote OSIS Chairman SMK Bina Informatika
Developed a web-based voting system for school elections using PHP and MySQL. Successfully deployed and utilized by 350+ users, including students and staff.
E-Office PT. Septana
Led a small development team to deliver a custom E-Office web application for PT. Septa Astha Nawa, using PHP with the CodeIgniter 4 framework. Creates a monolithic app with document generation (PDF, Excel), QR Code-based digital signatures, and user management with 8 distinct roles. Delivered the project with a "Very Satisfied Result" rating.
Education
Solidity Bootcamp - Monad X BlockDevId
Smart contract architecture, L2 deployment, Web3 fundamentals
Jun 2025 - Jul 2025
Leadership Camp by Merry Riana
Strategic leadership, long-range planning, persuasive communication
April 2025
Purwadhika Digital Technology School
Fullstack Web Development
Oct 2023 - Mar 2024
SMK Bina Informatika
Software Engineering, GPA: 97/100, Best Project Award
Jul 2020 - Aug 2023
Certifications & Awards
Best Project - Web Hotel Reservation
SMK Bina Informatika
2023
Highest Predicate - Final Competency
SMK Bina Informatika
2023
Gold Medal - National Informatics Competition
Kompetisi Pelajar Nasional
2022
Services
Web Application Dev
I build scalable and performant web applications from landing pages to full admin dashboards, I deliver pixel-perfect and optimized solutions.
Smart Contract Development
I develop Solidity-based smart contracts for various applications like DeFi, NFTs, and DAOs. My code is optimized for gas efficiency and follows security best practices.
AI Integration
GPT-powered tools, chatbots, and automations for your apps or workflows. I craft AI-driven experiences that elevate user engagement and simplify processes.
Let's Build Something
Reach out for collaborations, freelance opportunities, or to discuss ideas. My inbox is always open.