Signatech↗
ERP · SaaSERP and accounting platform for pharmaceutical distribution — purchasing, sales, inventory, and general ledger in one multi-tenant system, used daily.
signatech.id
Full-Stack Engineer & Systems Architect — Bandung, Indonesia
Herin Yudha
Pratama.
Quiet systems behind busy businesses. I design and build ERP, WhatsApp commerce, and AI automation for companies in Indonesia — from database to production.
01About
I spent fourteen years on the business side — founding AS GOOD SUPPLY CO and running it for nearly a decade, then leading commercial at consumer brands, running the full org: offline stores, online store & marketplace, digital marketing, CRM, KOL, and content teams.
Performance marketing is home ground — tens of billions of rupiah deployed across Meta, Google, TikTok, and Shopee ads at a 15–20× average ROAS. Somewhere along the way I started building the systems my teams needed, and never stopped.
Today I build operational software: ERP and accounting platforms, WhatsApp commerce, dashboards, and AI agents that work around the clock. My approach is simple — understand the business flow first, then write the code. The tools change; the goal doesn't: systems that quietly do their job every day.
02Experience
Founder — MAJI
2023 — NowHead of Commercial — Paddy Indonesia
2024 — 2026Led the full commercial org — offline stores, online store & marketplace, digital marketing, CRM, KOL, and content teams.
Marketing Manager — PORTEE
2023 — 2024Commercial Lead & Digital Marketing Manager — Visval
2021 — 2022Founder — AS GOOD SUPPLY CO
2012 — 202103Selected Work
Farmatek↗
E-commerce · WhatsApp AIDigital pharmacy with a WhatsApp agent — product catalog, ordering, and customer service running automatically inside the chat app everyone already uses.
farmatek.id
Neupix WA Commerce
Product · Multi-tenantWhite-label WhatsApp commerce engine — one core, many tenants, with per-industry guardrails. Serving pharmacy and cosmetics, ready for the next one.
Alcavella↗
Analytics · AdsCross-platform advertising analytics dashboard — Meta, TikTok, and marketplaces — so daily budget decisions come from numbers you can trust.
alcavella.id
04What I Do
AI Automation & Agent Orchestration
Multi-agent AI systems that can weigh a decision, not just follow rules — running around the clock, monitored, and accountable.
Full-Stack App Development
Web apps, dashboards, and internal tools built end-to-end — from database and architecture to production and monitoring.
ERP & Accounting Systems
From transaction records to a ledger that balances. Systems that follow the business flow, not the other way around.
WhatsApp Commerce & AI Chatbots
Selling and serving customers where they already are — with agents that know their limits.
Performance Marketing & Ads
Meta, Google, TikTok, and Shopee ads — tens of billions of rupiah managed at a 15–20× average ROAS.
Dashboards & Analytics
Numbers from many sources, unified and presented so they're fast to read — and right.
05Live Demo
Don't take my word for it — click around.
A working sample of the kind of system I build — sales orders, invoicing, purchasing, inventory, and a ledger that stays balanced. All sample data, in dollars. It's live below: create an invoice, post it, watch the books move.
Interactive demo — runs entirely in your browser, resets anytime.
06Contact
Have a project in mind, or want to talk systems first? Email is the fastest way to reach me.
surel.herin@gmail.com