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Immanuel Janis

Full Stack Engineer | TypeScript Ecosystem | Web3 & AI Solutions

TypeScriptNext.jsWeb3AI

Tangerang Selatan, Indonesia

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TypeScript

Blockchain

Next.js

Product Engineer

AI & Automation

Profile

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.

Expertise

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

Base

Hardhat

Foundry

DBMS

MySQL

MongoDB

PostgreSQL

Prisma

Oracle Database

Supabase

Libraries & State

Redux

Zustand

React Query

Formik

Zod

DevOps & Infra

Git

Docker

Github Actions

CI/CD

Redis

PM2

AI / Automation

n8n

AI Assistant Tools

MCP

Web Concepts

SSR/SSG/SPA

SEO

Career

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.

Resume

Curriculum Vitae

View or download my CV directly.

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Portfolio

Featured Projects

Selected work across Web3, enterprise, and product engineering.

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).

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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.

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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.

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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.

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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.

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IMZN Technology

Developed a mobile-responsive static company profile website using Next.js. Achieved an average PageSpeed Insights score of 98.6.

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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.