FA
Hi, I'm Fathin 👋
a guy in 20’s, building apps. chasing freedom. now also very active on X.

About

At the mid of 2025, I quit my job then go to work as a freelancer and start building and scaling my own Product. In the past, I pursued a degree in Engineering

Work Experience

N

Nightcoders
Current

2024 - Present
Founder
Founder of a tech studio building modern web and mobile applications with deep integration of AI systems. Delivered full-stack projects using Next.js, React Native, TypeScript, and Python. Worked on end-to-end machine learning pipelines and LLM-based features for real-time apps. Also leading the development of our own SaaS products that blend clean user experience with intelligent automation and scalable infrastructure.
U

Upwork
Current

2024 - Present
Software Engineer
Focused on delivering high-impact solutions to global clients, including web apps using Next.js, mobile apps with React Native, and AI-powered systems. Worked on scoping and prototyping solutions that leverage machine learning and LLMs. While no contracts were finalized, the experience sharpened project planning, proposal writing, and integration of AI into client-facing products.
F

Fastwork
Current

2024 - Present
AI Engineer
Built and deployed multiple machine learning models and AI-based features across internal and external applications. Integrated LLMs into production systems, powering tasks such as content generation, summarization, and recommendations. Collaborated on backend services using Python and worked on deploying scalable inference workflows that integrate seamlessly with web and mobile frontends.
S

Sejasa.com - Recommend Group

2023 - 2025
Data Analyst
Led the development of a smart chatbot powered by Retrieval-Augmented Generation (RAG), integrated directly with Sejasa's APIs and WATI. Enabled users to request services and get personalized responses via chat. Handled full-stack implementation including prompt engineering, vector search integration, API connection, and conversation UX — significantly improving support automation and customer experience.

Skills

Python
TypeScript
JavaScript
FastAPI
Flask
OpenAI API
React
Next.js
Tailwind CSS
ShadCN/UI
MagicUI
TensorFlow
LangChain
Supabase
MongoDB
PostgreSQL
Docker
Cloudflare
AWS
Vercel
Git
Client Projects

Check out our latest work

We've worked with clients on a range of products — from landing pages to full-scale platforms. Here are some highlights of our recent client work.

Creacon

Creacon

A modern web app for Creacon, showcasing digital creative services, project portfolio, and a contact system with Strapi CMS backend.

Next.Js
Typescript
Strapi
TailwindCSS
MyDr-Detection

MyDr-Detection

A modern web app for Creacon, showcasing digital creative services, project portfolio, and a contact system with Strapi CMS backend.

Next.Js
Typescript
TailwindCSS
Python
OpenAI API
FastApi

GEN-Z EYEWEAR

GEN-Z EYEWEAR is a next-gen eyewear brand and web platform that caters to the bold, expressive style of Gen Z. the site provides PD (Pupillary Distance) measurement tools, helping users find the perfect fit for prescription or fashion glasses — all from the comfort of their devices.

Wix.com
FastAPI
Tensorflow
Latihan Soal

Latihan Soal

LatihanSoal.fun offers a wide range of practice questions and mock exams for individuals preparing to enter public institutions or become civil servants. Designed to help users improve accuracy, speed, and confidence, our platform supports success in competitive government job tests.

Next.Js
Typescript
Supabase
TailwindCSS
Building

I like building things

We're building our own SaaS products at Nightcoders - 1+ so far. Some are tools like Copi, others are full platforms. Everything we launch is built fast, with purpose, and used by real people.

  • C

    Copi - Notes & Tasks

    Copi is a minimal note-taking and task management app that helps you stay organized without distractions. Add tasks with reminders, capture quick notes, and categorize everything using shared labels - all in one clean, unified interface.
Contact

Get in Touch

Got a question? Feel free to DM me on Twitter- I'll get back to you when I can. Please note: I ignore all messages that are disrespectful.