D. Daud Yusup

Software Engineer | Blockchain Enthusiast | IoT & AI Orchestration

"Any fool can write code that a computer can understand.

Good programmers write code that humans can understand."

- Martin Fowler

About

Abstraction

I have been writing code for over ten years now. SaaS, fintech, IoT, smart contracts, AI.
Different industries, different stacks, but the core question stays the same: how do I make this thing actually work, and work well.
I learned that good software is not just about clean architecture or the latest framework. It is about understanding the problem deeply enough that the solution feels obvious.
That is what I try to do every time I sit down to build something.

Skill Infographic

Praxis

Frontend

Typescript, React, Next, Vite, Redux, Zustand, GSAP, R3F, Motion, Velocity

Backend

Python, Django, Fastapi, Flask, NodeJs, Express, SQL, NoSQL, RPC, Redis

IoT & Hardware

C++, ESP32, STM32, LoRaWAN, MQTT, TinyML, Node-RED, Raspberry Pi

Web3 & AI

Solidity, DeFi, dApps, Alchemy, Hardhat, Wagmi, VectorDB, RAG, Transformers

DevOps & Tools

Linux, Git, CI/CD, Docker, Grafana, AWS, Sentry, RouterOS, Telegram & Discord Bot

Softskill

Critical Thinking, Problem Solving, Leadership, Attention to Detail

Education

Episteme

Cyber Security

2020

Oxford Home Study College

Bachelor Degree

Economic - STIE Paripurna

2016-2020

Web Developer & SEO

2019

Tech In Asia

Experience

Chronicles

Feb 2025 to Present

Technical Lead

Espro Excelindo

Led a cross functional team in the end to end development of an ISP product, covering device provisioning, customer management, billing system integration, and the linking of network infrastructure with software platforms.

. Automated the device provisioning process, reducing the time required from 15 minutes to under 2 minutes.
. Designed a customer management system capable of handling over 1,000 concurrent users during peak hours.
. Integrated billing systems to link isolated customer devices with databases and payment gateway reports; reconciliation error rates dropped by 40% following this system integration.

Jun 2024 to Jan 2025

Software Engineer

Freelancer • Andlaw, Auronex, Goldium

Handled freelance full stack projects for various startups, studios, and dApps, encompassing MVP creation, cross border collaboration, and the development of decentralized applications on EVM compatible networks, Solana, and TON.

. Engaged with diverse startups and unique project timelines; successfully launched every MVP within an 8 to 12 week timeframe.
. Served clients across the logistics, DeFi, and healthcare sectors, maintaining effective operations despite asynchronous workflows and cross timezone collaboration.
. Built dApps on EVM networks from scratch, covering the entire lifecycle from smart contract development to frontend implementation.

Dec 2023 to May 2024

Software Engineer

Adira Dinamika Multifinance

Developed and maintained an application system for credit payment requests, covering loan processing, credit scoring, and integration with various marketplaces, while handling high transaction volumes and ensuring data integrity.

. Reduced the loan approval process from three days to less than 8 hours per application.
. Integrated with various marketplaces to enable credit based payment options for users.
. Integrated a credit scoring API, transforming the decision making process from two days to just 30 minutes.

Apr 2023 to Oct 2023

Software Engineer

Teknologi Karya Digital Nusa

Designing and implementing IoT solutions in the transportation sector for smart city applications. Developing firmware, cloud integrations, and monitoring dashboards that link hardware and software to provide real time operational visibility.

. A dashboard for real time monitoring of over 100 vehicles, integrating smart city fleets and assets into a unified view.
. Deployment of over 200 IoT sensors transmitting data to a cloud platform for analytics and automated alert systems.
. Management of diverse hardware platforms, each with unique connectivity challenges; performing cross platform debugging to maintain high data transmission success rates.
. Development of firmware and specialized communication protocols for sensor networks operating in varied deployment environments.

Jul 2021 to Apr 2023

Lead Frontend Engineer

Dedomena

Led the frontend team in developing a modern internal ERP solution. Responsible for refactoring the legacy system into a new one, making architectural decisions, mentoring developers, and ensuring smooth product delivery across cross functional teams.

. Refactored a frontend system built on outdated technology into a modern, maintainable, and developer friendly ERP.
. Implemented code review processes and mentored four developers, successfully reducing the number of production bugs during the refactoring phase.
. Integrated external APIs and ensured seamless data exchange between frontend and backend services.
. Collaborated with product and UX teams, analyzing over 100 pieces of user feedback to inform technical decision making.

Jul 2020 to Jun 2021

Frontend Engineer

Qerja Manfaat Bangsa

Developed an interactive interface for a job search and company review platform serving thousands of users, focusing on performance, accessibility, and pixel perfect implementation across various devices.

. Improved Lighthouse scores from 55 to over 85 through performance optimization and code splitting.
. Ensured accessibility across five different device types, successfully meeting WCAG AA standards.
. Transformed over 30 wireframes into production ready interfaces through close collaboration with designers.
. Built a component library containing 20 reusable components, reducing feature completion time by approximately 30%.

Feb 2019 to Jul 2020

Software Engineer

Sabre Travel Network

Full stack development for a global online travel booking platform serving millions of users. Built and maintained features across the entire system stack, ranging from the user interface to high capacity booking APIs.

. Developed interfaces and backend booking services supporting over 500 travel agency partners.
. Addressed slow page load times by optimizing the frontend and refining API queries, resulting in a 40% reduction in load time.
. Designed APIs to integrate multiple partner systems for real time travel data exchange.
. Worked with legacy code while modernizing critical booking workflows to enhance reliability.

Jan 2018 to Dec 2018

Software Engineer

Prima Adhikarya

Delivered custom software solutions to government and corporate clients throughout the project lifecycle. Collaborated directly with stakeholders to translate requirements into technical specifications and reliable systems.

. Managed four government and corporate projects simultaneously, from inception to completion.
. Provided consulting services to clients regarding IT infrastructure and legacy system migration strategies.
. Maintained 99% operational system availability through routine maintenance and monitoring.
. Developed documentation and trained over 20 end users to ensure smooth system adoption.

Jan 2017 to Dec 2017

Software Engineer

Care Indonesia Solusi

Developed HR management tools and psychological assessment platforms for clients. Collaborated with subject matter experts to digitize recruitment workflows and psychometric evaluation processes.

. Built recruitment, evaluation, and employee engagement modules used by over 15 corporate clients.
. Partnered with psychologists to digitize IST, MBTI, and Papi Kostick assessments; automated scoring reduced processing time from two hours to less than five minutes per test.
. Conducted comprehensive testing and provided training to more than 20 HR staff members and psychologists prior to launch.
. Carried out continuous development based on client feedback.

Jan 2016 to Dec 2016

Software Engineer

Quadrant Boarding School

Developed educational software for learning management and school administration within a boarding school environment. Collaborated with educators to digitize curriculum delivery, grading systems, and student progress tracking.

. Built a learning and information platform featuring assessment and attendance tracking capabilities; used daily by over 200 students and 20 teaching staff members.
. Collaborated with more than 10 teachers to align the platform with actual curriculum requirements and classroom workflows.
. Maintained system availability and implemented enhancements based on feedback regarding school operations.
. Conducted staff training and provided hands-on technical support during the rollout across the school.

Portfolio

Opus Magnum

Cloud Kitchen

A mobile ordering app for a multi outlet cloud kitchen brand. Real time order tracking, push notifications, payment gateway, dispatch coordination. All in one.

React Native, Redux, WebSocket, OneSignal, Midtrans API, Google Maps SDK

DeFi Gasless App

Fullstack dApp with gasless meta transactions. Smart contracts on EVM, frontend integration, cross chain bridges, relayers handling fee abstraction.

React, Li.Fi, EVM (Solidity, Hardhat, Alchemy), TON SDK, Solana Web3.js, Ethers.js, Wagmi, The Graph

ERP Dashboard

Led frontend architecture for a modular ERP system. Built a component library, coordinated with three backend squads, mentored four developers along the way.

React, Vite, Redux Toolkit, React Query, TypeScript, Tailwind, Chart.js, React Router, REST API

E-Wallet App

Multi currency wallet with QR payments, P2P transfers, transaction history, and biometric authentication. Backend and frontend, from scratch.

Next.js, Express.js, Prisma ORM, Zustand, PostgreSQL, Redis, JWT, QR Code API, Fingerprint SDK

Fleet Management

Desktop fleet monitoring with real time GPS tracking, YOLO based plate recognition, Flask telemetry API, and a dashboard for fuel analytics.

PyQt6, Flask, YOLO, TensorFlow, OpenCV, MQTT, SQLite, WebSocket, Folium Maps

Health Wearable

Real time vitals monitoring for healthcare providers. Live charts, alert system UI, mobile first, responsive.

React, Vite, Redux, TypeScript, Tailwind, Chart.js, WebSocket, Axios

HRIS Platform

Employee lifecycle management from onboarding to offboarding. Payroll engine, attendance tracking, role based access control.

Django, Django REST Framework, PostgreSQL, React, Redis, Celery, Docker, Nginx

ISP Management

Subscriber management with automated Mikrotik provisioning, usage based billing, payment gateway, and CI/CD. Led the team end to end.

Next.js PWA, Express.js, RouterOS API, Zustand, GitHub Actions CI/CD, Docker, Mikrotik API, MySQL, Telegram Bot API

Job Portal

Job listing and search with Elasticsearch, resume parser frontend, candidate dashboard, employer branding pages. Pushed Lighthouse scores up significantly.

Next.js, Redux, Tailwind, TypeScript, React Query, Elasticsearch, REST API, Axios, React Hook Form

Jobs Hunting App

Mobile job search with one tap apply, push notifications for job alerts, real time chat with recruiters, and offline resume storage.

React Native, Redux, Sentry, OneSignal, Firebase, TypeScript, React Navigation, Axios, AsyncStorage

Jobs Platform

Freelance marketplace with escrow payments, dispute resolution, skill verification, project management, and real time messaging.

Next.js, Express.js, Sequelize, Zustand, PostgreSQL, Socket.io, Stripe API, Redis, Docker

Logistic Management

Desktop logistics app with real time GPS tracking, route optimization using LLM, warehouse management, and image capture for delivery confirmation.

PyQt6, Flask, YOLO, LLM API (OpenAI), TensorFlow, OpenCV, PostgreSQL, WebSocket, Leaflet Maps

Multifinance App

Mobile loan origination with AI credit scoring, document verification, marketplace integration for financing products, and automated approval workflows.

React Native, Feathers.js, MongoDB, Redux, Node.js, Redis, JWT, AWS S3, Midtrans API

Omnichannel Marketplace

Multi channel inventory dashboard, POS system UI, order orchestration, real time stock sync between online and physical stores.

React.js, Redux, TypeScript, Tailwind, React Query, Chart.js, WebSocket, REST API

Online Marketplace

Vendor management, product catalog with real time inventory sync, payment gateway, shopping cart and checkout flow.

React, Vite, Flask API, PostgreSQL, Redis, Docker, Midtrans API, Celery, Nginx

Sentiment Analysis

NLP sentiment classification API trained on social media data. PyTorch model, Flask inference endpoint, dashboard for brand mention analysis.

PyTorch, Flask, HuggingFace Transformers, PostgreSQL, Docker, Nginx, React

Smart Farm

ESP32 firmware for soil moisture and temperature sensors. MQTT telemetry pipeline, automated irrigation logic, PWA dashboard for monitoring and control.

ESP32 (C++), Next.js PWA, MQTT, Flask API, SQLite, Grafana, Mosquitto

Social Media Marketing

Cross platform post scheduler with automated content scraping, analytics dashboard for engagement metrics, scheduled posting engine.

FastAPI, PostgreSQL, Celery, BeautifulSoup/Scrapy, Redis, React, Social Media APIs

Supply Chain Management

Mobile app for real time inventory tracking, purchase order approval, supplier communication, and barcode scanning for warehouse operations.

React Native, Redux, Node.js, PostgreSQL, Socket.io, Camera API, Barcode Scanner

Travel Agency

Multi provider rate comparison UI, booking flow with real time availability, dynamic pricing, responsive travel search interface.

Next.js, Redux, TypeScript, Tailwind, Sabre API, React Query, Axios, REST API

Twitter Comment Classification

ML pipeline for tweet classification combining sentiment and topic analysis. Scikit learn models, FastAPI endpoint, moderation dashboard.

Scikit-learn, FastAPI, Pandas, NLTK, PostgreSQL, Docker, React, Twitter API v2

And More on GitHub

This is just a snapshot of what I build. More projects, internal tools, experimental systems, and open source contributions live on my GitHub. Let's connect.

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Industries

Ten years of building software across industries from finance to IoT to Web3.

Services

Applied Techne

Software Development

Modern responsive interfaces, dashboards, SaaS products, and frontend architecture.

IoT Solutions

Firmware, telemetry, MQTT systems, sensor integration, and hardware-cloud bridges.

Blockchain Integration

Smart contracts, wallet integrations, token utilities, and EVM application flows.

AI Orchestration

Agent workflows, LLM integration, automation pipelines, retrieval systems, and AI assisted product engineering.