Open to work

7 years running ecommerce operations. Now I build the tools — and audit them the way an operator would.

Achmad Khairul Anam — Amazon, Etsy, Shopee, 15+ seller accounts, P&L owned end to end. Today I ship AI products solo, and I check my own work the way I'd want a vendor to check something I'm paying for.

See the audit log → Get in touch
Audit log — 001 / 005
2026 · Marketplace lead-gen infrastructure
Revenic.io
Live →

The problem: marketplace sellers are invisible to typical prospecting tools — nearly 50% of US ecommerce runs through Amazon and Shopify, where sellers rarely show up on LinkedIn or in static contact databases.

Trade-off Chose a "Deterministic First, LLM Last" architecture — every score, match, and flag stays rule-based and auditable. The LLM is restricted to narrating results in plain language, never computing them.
Result A live test run surfaced 18 verified leads from real, named companies (JLO Beauty, TruSkin, beautyblender, and others) — each with a verified contact and an auto-drafted first-touch email. Live now as a credit-based SaaS ($29–$299/month).
Next.jsTypeScriptApifyClaude API
2026 · CV-to-job matching, live
DiterimaKerja.id
Live →

The problem: a job-matching tool was live and converting paying customers — but AI parsing reliability was silently degrading behind a working interface.

Found Three separate root causes: a silently-deprecated model breaking every parse, a 4,000-character input limit quietly dropping work history from longer CVs, and unreliable JSON from a reasoning model — none visible without deliberate investigation.
Fixed Switched to a non-reasoning model for structured extraction, added defensive JSON repair. 18+ paying customers since launch, zero ad spend, fully organic.
Node.jsOpenRouterClaude Sonnet 5REST APIs
2026 · Amazon/Etsy brand protection
Defenr.com
Live →

The problem: a platform that detects hijackers for other sellers only works if its own infrastructure is trustworthy.

Found A public authentication exposure in my own infrastructure, during a routine audit — no external report, no incident.
Fixed Closed it with HTTP Basic Auth middleware, owned the full audit-to-fix cycle solo, verified before calling it done.
Next.jsTypeScriptSupabaseVercel
2026 · Shopee product research
CekLaris.com
Live →

The problem: before wider rollout, I audited my own live product instead of waiting for a user to find something first.

Found A premium-payment flag trusted entirely on the client side — exploitable from the browser console — plus a usage counter that overstated real traction.
Fixed & verified Rebuilt payment verification server-side, re-ran the original exploit myself to confirm it's closed. Also relabeled every AI-estimated result honestly and added a 7-day money-back guarantee.
OpenAI APIVercelMidtrans
2026 · Indonesian document & admin tools
DiterimaBerkas.id
Live →

The problem: Indonesian bureaucratic processes — civil service registration, university admission, passport, marriage — each demand their own document formats, and most tools that handle them upload personal files to a third-party server first.

Trade-off Built all 8 tools (PDF compression, ID photo formatting, letter templates, ATS CV builder, OCR, digital signature) to run fully client-side — no file ever leaves the user's device. Harder to build than a simple server-side pipeline, but the right trade for documents this sensitive.
Status Live with active free-tier usage across all 8 tools; monetization in place, no paid conversions yet.
Next.jsTypeScriptClient-side PDF/image processing
About

7+ years running multi-platform ecommerce operations — Amazon, Etsy, eBay, Shopee — owning P&L across 15+ seller accounts, including my own Amazon FBA and an Etsy shop I still run today.

Now I build AI-powered products solo — directing Claude Code to ship and debug production systems fast — using the same instinct: find what's actually broken, fix it, verify it works. I test everything before I trust it — every story above is a bug I found in my own shipped work. That's not an accident. It's the habit.

Contact

Open to Founding Engineer / Product Engineer roles at early-stage startups, ecommerce-tech & martech companies, Technical PM / Solutions Engineer roles, and freelance data & automation projects.

achmad.khairul@gmail.com WhatsApp LinkedIn GitHub Apify