Toni Suwendi

Enterprise POS system unifying Kalbe's pharmacy retail (Kalcare) and home delivery (KHD) — initialized the project, built the design system, and owned most feature modules. Unified POS for Kalbe Pharma merging Kalcare (retail pharmacy counters) and KHD (Kalbe Home Delivery). I initialized the project, set up the tech stack and GraphQL, built all base components with Storybook. Key modules I built: • Library: product CRUD (multi-variant, multi-unit, expiry), categories, vendors, units, barcodes with in-app barcode printing • Reports: sales, item, user, payment, discount, account mutation, stock, dashboard (tables & charts) • Auth, transaction list, order detail, settlement • Task module: Kanban board (drag-drop, Jira-style) for KHD packing → shipping → received → completed status tracking • Order flow (most complex): cashier open/close, multi-store, retail & FnB card views, barcode scan-to-cart, QRIS via Midtrans Snap, customer KPoint redemption, delivery address, discount engine, split payment • Multilingual (i18next: ID + EN for Philippines operations) and multi-currency

Next.jsTypeScript+7

Offline-first field data platform for enterprise mining operations (Vale, Freeport) — featuring multi-database sync architecture and real-time updates. A field data management system for mining site operators. The core challenge: devices collect drilling/survey data with no connectivity in the field, store it locally, and sync to the server once back at the office. Architecture: three databases — Hub DB (Geoshub's own data), Centre DB, and Client DB (e.g., Vale or Freeport). Login resolves against Hub DB, then routes to the correct Client DB based on the user. I built: • Backend (Express.js, Prisma, PostgreSQL, Socket.IO) — sync engine, multi-DB routing, real-time updates. • Frontend (React.js, TypeScript, Material UI) — client & template management, data input/validation forms, synced record viewing.

Express.jsTypeScript+6

Multi-app system for an Islamic boarding school — company profile, digital PPDB enrollment, and a full REST API backend. A three-part system for Pondok Pesantren Al-Jairy: 1. Company Profile (WordPress + Elementor) — 10+ pages covering school levels, facilities, achievements, news, and admission info. 2. PPDB System (Next.js) — three enrollment modules: (a) SPMB new-student registration with multi-step forms (personal data, address, guardian, documents), (b) Lapor Diri — check-in after acceptance with payment scheme selection, and (c) Daftar Ulang — re-enrollment for current students with similar forms. 3. Backend REST API (Express.js, MySQL, AWS S3) — admin panel for SPMB verification, enrollment management, referral management, and active student records.

Next.jsTypeScript+6

SaaS digital product catalog — one shareable link lets any business showcase products and receive orders via WhatsApp. TapMenu is a SaaS side-project I built solo. Businesses create a digital product catalog accessible via a single link — like Linktree, but with a real product list, categories, cart, and WhatsApp checkout. Seller dashboard: product & category CRUD, store settings (theme, QR code), subscription management via QRIS (iPaymu), WhatsApp OTP via Fonnte, and automated cron jobs for trial expiry & subscription lapses. Customer storefront: browse categories, add to cart, checkout → redirects to seller's WhatsApp with a pre-filled order message.

Next.jsTypeScript+5

Full-stack PPOB platform for agents and regular users — covering mobile credits, data packages, electricity tokens, PDAM, BPJS Kesehatan, and e-wallet top-ups. Isiin is a PPOB (Payment Point Online Bank) platform I built with teammates as a volunteer project. I contributed across the backend, web admin, and landing page. - Backend API (Express.js, PostgreSQL) — integrated with Digiflazz for digital product fulfillment and Xendit for QRIS payments and balance top-ups. Powered separate pricing tiers for agents and regular users, along with business flows for agent KYC verification, notifications, promotions, points, and agent receivables. - Web Admin (Next.js, Mantine) — built operational interfaces for pricing management, product configuration, order monitoring, and user management. - Landing Page (Next.js, Tailwind) — built the public-facing marketing website for the product. Supported products: mobile credits, data packages, electricity tokens, PDAM, BPJS Kesehatan, and e-wallet top-ups. The project was eventually discontinued due to a change in direction from the project owner. Despite this, it remains one of my most complete end-to-end builds — combining third-party PPOB integration, payment flows, role-based pricing logic, and multi-surface product development in a single system.

Express.jsPostgreSQL+6

Adaptive HRIS with ML-based salary prediction and performance recommendation for hybrid remote teams — built as an undergraduate thesis project. Thesis title: "Development of an Adaptive HRIS for Hybrid Remote Teams with Performance Prediction and Salary Recommendation Using Machine Learning". I built three of the four components: • REST API (Express.js, MySQL, AWS S3) — HR data, attendance, salary records. • Web Admin (Next.js, TypeScript, Tailwind, Shadcn, React Query) — manage employees, attendance, WFH/WFO records, and view ML-generated salary recommendations. • ML API (Flask) — model trained on public HR datasets using scikit-learn. Inputs: attendance patterns, WFH/WFO ratio, position, etc. Outputs: performance prediction and salary recommendation with SHAP explainability. Teammate built the Android mobile app.

Next.jsTypeScript+7