hello there,
I'm Fathi. I build Rails apps that quietly run real businesses.
10 years of Ruby on Rails for teams in Malaysia, Singapore and Seoul. Right now I'm a senior engineer at CaterSpot. On the side, I take on projects and retainers for Malaysian companies.
CaterSpot · CHOWIS · Betacode · DNSVault — Rails since 2016
Things I've made
10 projects · newest first
01 · Community · Non-profit · volunteer
Masjid BBR
Website and back office for Masjid Bandar Bukit Raja: hall booking, equipment loans, majlis requests and prayer times, with an AJK inbox.
React / Cloudflare Workers / Hono / Supabase / R2
v2.masjidbbr.com.my
02 · E-commerce
Malioris
Invitation-only online store for a Malaysian women's membership brand.
React 19 / Vite / Tailwind CSS / Cloudflare Pages
malioris.com
03 · HR SaaS
Click4Cuti
Leave management for Malaysian companies, with EA 1955 entitlements, approvals and invoicing, on the web and mobile.
Ruby on Rails / React / Expo
click4cuti.my
04 · F&B · Loyalty
Wafaa+
Loyalty platform for F&B outlets that works with any POS: points, member portal, cashier app and WhatsApp campaigns.
Ruby on Rails / React
wafaaplus.my
- Yuran.myEdTech · PaymentsSchool and tuition fee collection and records for Malaysian institutions and parents.
- MantryFintech · AI · stagingAccounting app that reads uploaded invoices, bills and receipts with AI and turns them into proper accounting entries.
- HearmeCommunityA community for parents of children with hearing impairment: connect, share, find resources.
- PropsocialPropTechMalaysian property portal with listings, reviews and community insight for buyers, sellers and renters.
- OutletshirtE-commerceApparel store on BigCommerce with a custom Rails back office for orders and operations.
- Valo SchoolEducationSite for a Finnish-inspired early childhood centre in Petaling Jaya, ages 0–6.
Where I've been
2016 – now
10 years in Rails, 4 companies
2022 – now
current — remote from Shah Alam
CaterSpot
Senior Software Engineer
4 yrs 2 mos · Singapore (remote)
- Automated outlet assignment with the Google Maps API
- Real-time logistics dashboard on Elasticsearch
- Driver payment system with bonus logic
- Live monitoring with Action Cable and the Tookan API
- Led the UI/UX overhaul of Vendor App V2
2021 – 2022
the Seoul chapter
CHOWIS
Full Stack Developer
1 yr · Seoul, South Korea
- APIs for user management and analytics
- Skin analysis tool with real-time facial recognition
- Customisable product platform with dynamic rendering
2018 – 2021
four products in three years
Betacode
Software Engineer
3 yrs 5 mos · Malaysia
- Unispark — student portal and campus marketplace
- Cannected — batch tracking for cultivation
- Classruum — e-learning with video
- Umrahloka — APIs for a travel booking app
2016 – 2018
where the Rails started
DNSVault
Platform & Application Engineer
1 yr 9 mos · Shah Alam
- i-hack — team platform for cybersecurity competitions
- Real-time question delivery and dynamic scoring
- DNS management systems
Sound familiar?
Project work gets a fixed price after a short scoping call. Retainers are priced in MYR. If the budget is tight, say so upfront — I'd rather scope to a real budget than quote a fantasy.
“We have an idea and need it built properly.”
Green-field Rails apps with React or Next.js front-ends, PostgreSQL, background jobs and CI/CD from day one.
→ New Rails builds
“Our app is stuck on Rails 5 and nobody wants to touch it.”
Move Rails 4–6 apps to current versions, clear deprecated gems, fix N+1s, and modernise the front-end without a rewrite.
→ Upgrades & rescues
“We need payments, webhooks and a mobile back end.”
Rails API back-ends, payment gateways, webhooks, third-party APIs and mobile app back-ends.
→ APIs & integrations
“We need a senior, not another full-time hire.”
A retainer for teams that need senior Rails help without a full-time hire: reviews, architecture, hands-on work.
→ Fractional senior engineer
Still shipping, most days.
Every day
Ruby on Rails / React / Next.js / TypeScript / PostgreSQL
When the job needs it
Node.js / Vue.js / Redis / Elasticsearch / MongoDB / AWS / Action Cable / Stimulus