Hi, I'm Stefen 👋
I'm a Software Engineer turned Entrepreneur with a passion for building innovative solutions and helping others achieve their goals. As a full-stack developer, I thrive on creating things from the ground up.
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About

As a dedicated and passionate frontend developer with six years of experience, I specialize in creating dynamic, user-friendly web applications that enhance the user experience and drive business success. My expertise lies in leveraging the latest technologies, including JavaScript, TypeScript, HTML, CSS, and React.js, to build responsive and visually appealing interfaces.

Read my blog

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Work Experience

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Xendit

Nov 2020 - Feb 2024
Frontend Engineer
  1. Redesigned the entire Admin Dashboard for internal users using Material UI
  2. Migrating Design System from scratch using Shadcn and Tailwind
  3. Implement microservices
  4. Collaborated with cross-functional teams to design and develop scalable frontend solutions, resulting in a seamless integration with backend systems and increased efficiency in data processing.
  5. Optimized website performance by utilizing advanced techniques such as code splitting, lazy loading, and caching, resulting in a 40% reduction in page load time.
  6. Conducted code reviews and provided constructive feedback to junior developers, fostering a culture of continuous learning and improvement, and resulting in a more robust and maintainable codebase.
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Mapaya

Mar 2017 - April 2020
CTO

Spearheaded the development of a cutting-edge ecommerce platform for seamless user food ordering experiences Utilized web technologies such as Laravel, MySQL, ReactJS, and mobile framework Flutter to construct an innovative solution Oversaw server operations to ensure optimal performance and reliability of the ecommerce platform

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Dealjava

April 2015 - March 2017
Fullstack Engineer

Architected and wrote the entire MVP of the GeForce Now Cloud Gaming internal admin and A/B testing dashboard using React, Redux, TypeScript, and Python.

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Bank Mestika

August 2013 - April 2015
Web Developer

Co-developed a prototype iOS app with another intern in Swift for the new Splunk Phantom security orchestration product (later publicly demoed and launched at .conf annual conference in Las Vegas). Implemented a realtime service for the iOS app in Django (Python) and C++; serialized data using protobufs transmitted over gRPC resulting in an approximate 500% increase in data throughput.

Skills

React
Next.js
Typescript
Node.js
Postgres
Laravel
My Projects

Check out my latest work

I've worked on a variety of projects, from simple websites to complex web applications. Here are a few of my favorites.

Sapa AI

Sapa AI

Experience the future of communication with Sapa AI. Our advanced AI technology offers natural and effortless interactions, enhancing your engagement with intelligent conversational capabilities. Flexible pay-as-you-go credits ensure you only pay for what you use.

Next.js
Typescript
PostgreSQL
Mantine UI
Weka Interior

Weka Interior

Developed a website for interior design and home improvement. Weka Interior is a one-stop to create beautiful homes and interiors.

Next.js
Typescript
PostgreSQL
Toby's Pack

Toby's Pack

A landing page for dog hotels. We aim to provide a seamless experience for customers and pet owners.

Next.js
Typescript
TailwindCSS
Shadcn UI
Magic UI
Contact

Get in Touch

Want to chat? Just shoot me a dm with a direct question on twitter and I'll respond whenever I can. I will ignore all soliciting.