~/preschian $ whoami
Preschian
Febryantara
I design and build reliable web and mobile products end to end, from the database schema to the last pixel on screen.
A builder who cares about the whole system, not just one end of it.
For over a decade I've helped startups, marketplaces, and enterprises turn rough ideas into production products. I'm equally at home modeling data and writing resilient APIs as I am building web and mobile experiences that feel fast and considered.
I care about the seams: where backend meets web and mobile clients, where design meets engineering, where a feature meets a real user. That's where good products are won or lost.
The full stack, handled.
Selected builds.
A minimal Islamic companion: a daily Quran verse, reflective journaling with mood tracking, and morning & evening dhikr counters, all offline on-device.
view on play store ↗A TCG news platform for Indonesia: daily coverage, reviews, and meta analysis across Pokémon, Yu-Gi-Oh!, One Piece, and Dragon Ball.
visit site ↗An internal field-ops platform for PLN (Tangerang region): a help-desk ticket queue and on-site work reporting, built for technicians working in the field.
private · corporateA Playwright-native library for automating real wallet extension interactions: connect, sign, and approve across any chain. Awarded a Web3 Foundation grant for advancing dApp testing tooling.
visit ↗A zero-config CLI that scaffolds production-ready Polkadot dApps with pre-wired templates and best practices. Received a Web3 Foundation grant for lowering the barrier to Polkadot development.
visit ↗Owned the Things To Do page & internal dashboard at tiket.com: both the customer-facing experiences storefront and the ops tooling behind it.
view live page ↗Built the corporate & newsroom site for Bukalapak: a headless WordPress + Nuxt platform serving company news, careers, and investor relations.
visit site ↗Built marketplace experiences for one of Indonesia's largest e-commerce platforms, a tech unicorn, on a micro-frontend architecture spanning multi-cloud infrastructure.
visit site ↗A corporate profile site: company information, business lines, and investor resources.
visit site ↗The corporate website for United Tractors: company overview, business lines, investor relations, and sustainability.
visit site ↗The brand & product site for IM3: prepaid and postpaid plans, network coverage, and customer support.
visit site ↗A property profile site for Capitol Park Residence: units, facilities, location, and gallery.
visit site ↗An e-commerce storefront for Le Portier: fragrances and accessories with a refined catalog and checkout.
visit site ↗An e-commerce store for SamWon: Korean food and BBQ products with cart and checkout.
e-commerceWork log.
Cut CDN and operational cost from $1000+ to under $20 with Cloudflare, and designed scalable backend APIs for marketplace operations across Substrate and EVM chains.
Improved legacy page performance with React and Next.js best practices, and raised delivery quality with proper CI/CD and automated tests.
Reduced server cost by 60% and improved Core Web Vitals by 30%. Led the micro-frontend migration and cloud platform transitions.
Started out building frontend interfaces for agencies and early-stage startups, turning concepts into polished, responsive builds.
Notes & writing.
~/preschian $ ./contact.sh