Owais Korejo
Owais Korejo
CS & Business @ TCD · Dublin

I like to build communities to share products

I'm Owais, a 19-year-old CS & Business student at Trinity College Dublin. I've been programming since I was 9 and building businesses since I was 15. I love the deterministic nature of code — if something's broken, there's always a reason.

Alongside engineering, I'm deeply into entrepreneurship: I ran an e-commerce store that hit $110k in sales, and I've since built and launched Groooves, a music-reviewing app on the App Store. One thing that sets me apart: I focus heavily on marketing before a product ships. When Groooves launched, 200 users signed up in the first week — we've since hit 5K+ users and 70 million social media views.

github activity

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expertise

Full-Stack Dev
Mobile (React Native)
Entrepreneurship
Organic Marketing
Product Design

education

2025 – present

Computer Science & Business

Trinity College Dublin

Studying the intersection of software engineering and business.

Aug 2023 – May 2025

Leaving Certificate

Institute of Education, Dublin

613 points — 5 H1s and 2 H2s.

Aug 2019 – May 2023

Junior Certificate

Stepaside Educate Together Secondary School

successful ventures

(there were many failed ones...)

2024 – present

active

Groooves

Letterboxd for music · groooves.app

Built with React Native & Supabase. 5K users in 3 months, 70M social media views, artists like SZA and Pusha T engaging.

2022 – 2025

closed

Album Posters Store

Music poster e-commerce · $110,000 in sales

Grew to 21K Instagram/TikTok followers organically. Peaked at $15k/month. Closed to focus on Groooves.

hackathons & competitions

2026

Rethrift

Connecting fast fashion buyers with thrift alternatives · 2× Hackathon Winner

Finds the carbon cost of any clothing item and surfaces similar, cheaper, more sustainable alternatives from local thrift shops.

2025

Claude Hackathon — HealthPilot AI

All-in-one AI health tracking app

Built in ~3 hours with a team of four. Tracks health, exercise, sleep, vitals, and body composition; uses Claude to turn data into personalised insights.

2022

All Ireland Programming Olympiad (AIPO)

Top 10 National Finalist

Reached the top 10 in Ireland's national programming olympiad. Spent months studying algorithms and data structures in C++.

experience

Groooves

Jun 2025; Present

Founder

Groooves

Building and growing Groooves, a music-reviewing app (Letterboxd for music) built with React Native & Supabase. 5K+ users in the first 3 months, 70M social media views. Artists including SZA, Pusha T, and Kali Uchis have engaged with the app.

Album Posters Store

Jun 2023; Jun 2025

Founder

Album Posters Store

Ran a music poster e-commerce store from age 15. Designed all posters, grew to 21,000 organic Instagram/TikTok followers with zero paid ads, and generated $110,000 in total sales. Peaked at $15k/month. Closed to focus on Groooves.

Integration Xperts

Summer 2024

Software Engineer Intern

Integration Xperts

Worked as a software engineer intern for 3 weeks, contributing to real-world software projects and gaining hands-on industry experience.

Self-Employed

2022; 2023

Programming Tutor

Self-Employed

Tutored 3 students in HTML, CSS, and Python for a year. Used earnings to fund the Album Posters Store.

let's connect

Find me on LinkedIn, or send me an email.