Shipping at Selfmade Ninja Academy — Bengaluru, India
Roles: Product & AI Engineer, Prompt Engineer, Platform Engineer — Frappe/ERPNext, MCP & Agent Developer
I ship production AI — not demos. Voice agents that qualify every sales lead. Multi-agent pipelines that turn university syllabi into living learning platforms. All deployed, all in daily use.
12.9716°N / 77.5946°EBLR
Story
Three years into a five-year degree, the pull of real users beat the pull of a diploma.
Currently
Product & AI Engineer @ Selfmade Ninja
I'm a product engineer and AI engineer at Selfmade Ninja Academy in Bengaluru — a tech academy and cloud-labs platform teaching programming, Linux and cybersecurity, with its whole business running on Frappe/ERPNext.
I finished school in Erode, joined the five-year integrated M.Sc. Software Systems programme at Kongu Engineering College — and after three years, left to build products full-time. Months later, my code was qualifying every sales lead the academy receives and generating lessons for thousands of learners.
My discipline is production-grade AI engineering: prompt systems that hold up against noisy real-world speech, data pipelines that fail safely without losing a record, telephony that never deadlocks, and attribution that ad platforms verify and trust.
Capabilities
Organised by engineering discipline — every item here has shipped to production. Nothing aspirational.
I engineer prompt systems and multi-agent orchestration for production — prompts that hold up under noisy real-world input, custom Claude Code skills, and AI wired to the tools it needs to deliver real work.
I engineer the production Python platform an entire academy runs on — Frappe/ERPNext at the core, built for correctness and uptime.
I architect the message queues, data stores and container infrastructure that keep long-running AI workloads reliable, observable and recoverable.
I build dependency-free interfaces, conversion funnels and dashboards — instrumented end-to-end so every decision is backed by data.
I integrate payments, telephony and advertising platforms into one coherent system — with event deduplication and attribution ad platforms verify.
I convert unstructured documents into validated, structured data — and render data back into production-grade, pixel-accurate documents.
Journey
No earlier roles to list — just the direct path from the classroom to shipping code for real users.
URC Palaniammal Matric Hr. Sec. School · Erode, Tamil Nadu
Finished schooling in Erode — where the curiosity for making computers do real work began.
Kongu Engineering College · Perundurai, Erode
Three years into the five-year integrated programme, the pull of building real products outgrew the classroom.
Student → Product & AI Engineer
Walked away from the degree to ship software with real users — a bet that paid off within months.
Selfmade Ninja Academy · Bengaluru
Largest contributor to the academy's core ERP (315 of 596 commits) and its sales CRM (180 of 473). Lead author of the All-Access subscription platform, the Referral Credit Ledger and the Cloud CRM behind Selfmade Cloud; creator of Syllabi AI, the syllabus-to-lesson pipeline behind LearnAI; owner of the AI voice lead-qualification system; and one of three engineers on Sponge Collaborative's company ERP — 350+ merged pull requests, all running in production.
Selected work
Everything here is deployed and in daily use — at Selfmade Ninja Academy and Sponge Collaborative. The work repos are private, so each case stands on its architecture and outcomes.
The whole catalogue on one plan — trial, mandate, quota
A new subscription module inside the academy Portal: a one-time 7-day free trial, UPI AutoPay mandate billing with KYC, weekly watch-hour quotas, sequential video unlocking, and an exam-centre gate deciding who earns a certificate. First commit to production in 8 days — then a 19-bug correctness campaign to make every edge exact.
Feature lead, end-to-end across the ERP and both student dashboards — 73 commits in the subscription core, followed by a ~24-PR hardening campaign after launch.
Architecture — signal path
CHECKOUT
plan pricing · ex-GST offer + GST · coupons · split-checkout autopay
MANDATE
Cashfree UPI AutoPay · KYC gate at enrollment · ended-trial mandate cancel
TRIAL
exact 7×24h · Trial Ended sweep · per-course availability · content cap
ACCESS
sequential unlock keyed by content · server-side playback OTP gate
METER
weekly quota from the access instant · festival multipliers · top-up lots
Earn, spend and send credits — exact under concurrency
One credit ledger replacing the academy's old points scheme. Students earn credits only from money that actually settled, spend them on watch passes, subscriptions and course instalments, and send them to friends by referral code — built to stay exact under replayed webhooks, racing workers and simultaneous transfers.
Sole author across the ERP and both student dashboards — 13 merged PRs, 1,100+ automated tests.
Architecture — signal path
EARN
settled payments only · two-level referral · workshop + trial earnings
LEDGER
insert-once rows · unique dedupe key · hourly reconcile sweep
SPEND
per-student wallet lock · holds, debts, returns · per-product caps
SEND
transfer by referral code · ordered wallet locks · idempotency keys
GOVERN
refund clawback · Desk kill switches · staff-only reversal
Every new lead, called by AI within seconds
A new sales lead lands in the CRM and an AI voice agent calls them within seconds, interviews them in Tamil-English, captures a structured qualification profile live during the call and routes hot leads to humans — then hands its verdict to Meta so the ads optimise on it.
Feature author and owner, end-to-end — 70+ commits, ~460 automated tests.
Architecture — signal path
TRIGGER
after_insert hook · returning-lead check · no-call window · Do-Not-Call
DIAL
Zenvoice REST · channel reservation · one-lead-one-call locking
CAPTURE
live tool-call qualification · signed end-of-call webhook · poll fallback
EXTRACT
gpt-4o-mini at temperature 0 · 11 profile fields · six verdicts
ROUTE
Hot → human sales · callbacks honour requested slots · verdict → Meta CAPI
A new product's revenue pipeline — website to sales desk
When the academy launched Selfmade Cloud, I built its customer pipeline across three codebases: a consent-gated Meta pixel on selfmade.work, an idempotent milestone relay in the ERP, and a complete CRM that turns every signup, trial and top-up into a lead sales can work — with AI calls, WhatsApp and ad attribution built in.
Lead author across 3 repositories — shipped in 9 independently deployable phases from a written spec, 160+ automated tests.
Architecture — signal path
CONSENT
banner tied to the policy version · ad click IDs in both Meta URL layouts
RELAY
ERP outbox on natural keys · consent + attribution snapshots
STAGE
~24 event types → 10 rules · monotonic, order-independent
WORK
7 DocTypes · Kanban board · 3 reports · AI calls + WhatsApp
MEASURE
7 standard + 17 custom Meta events · 3 synced audiences
A whole company's operations on one platform
The company platform for Sponge Collaborative, built on Frappe v16, ERPNext and HRMS with a Vue 3 app for the team: projects planned on a Gantt chart down to stages, activities and deliverables; a task kanban and timesheets; attendance, leave, holidays and expenses; handbook, policies, offer letters and payslips; partner financial dashboards; and a Tailscale-secured private network — self-hosted end to end.
One of three engineers on the platform — 61 commits and 19 merged PRs of my own, all live in production: employee exit, VPN enrollment, working-day rules, leave accrual, shift reminders, bulk expense payments and project visibility.
Architecture — signal path
PLAN
projects · Gantt stages, activities, deliverables · task kanban · timesheets
PEOPLE
attendance + shift reminders · leave accrual · holidays · expenses · onboarding + exit
DOCS
handbook · policies + acknowledgement · offer letters · payslips
FINANCE
project P&L · salary allocation · company overhead · Insights dashboards
ACCESS
Tailscale enrollment + device registry · role permissions · self-hosted Docker
A university syllabus PDF becomes a personal AI course, with hands-on labs
Syllabi AI turns a university curriculum PDF into a browsable tree — programme and regulation down to courses and units — on labs.selfmade.ninja. From any unit, a student opens LearnAI, the platform's AI tutor, pre-filled with that unit's topics: it writes a module-and-chapter lesson grounded in the syllabus, streams each chapter live, recommends hands-on cloud labs, and answers questions through a chat tutor that can run commands inside the student's own lab.
Designed and built Syllabi AI v1 end to end — the agentic parsing backend and the web UI, 35 commits and ~9k lines — plus LearnAI's lab-recommendation agents. Most of today's parser code is still mine; the wider team built LearnAI's core and extended the syllabus module.
Architecture — signal path
INGEST
admin upload or student request · PDF + 10 MB guard · SHA-256 dedup → HTTP 409
EXTRACT
pdfplumber → OCR fallback · PyMuPDF link harvest · flat mode past 10 Drive links
AGENTS ×5
Syllabus · FlatSyllabus · Unit · WebUnit · Lab — Pydantic contracts, units + labs in parallel
STORE
deterministic IDs · upsert-only re-parse · MongoDB course + unit collections
LEARN
LearnAI outline → streamed chapters · lab picks · Ask-AI tutor inside the student's lab
Top of the paid-acquisition funnel
Anonymous multi-step eligibility quiz feeding the CRM — with Meta Pixel + Conversions API attribution, browser/server event dedup, ROAS values and full UTM capture. The leads it qualifies are the ones the AI voice agent calls.
leads.selfmade.ninja
Template-driven credential rendering
Visual position picker with rotation, alignment and word-wrap for laying out dynamic fields on certificate artwork — a clean v3 renderer built alongside the untouched legacy system.
Money booked exactly once
Traced a Cashfree order booked twice, 448 ms apart, to a REPEATABLE READ snapshot and fixed it by claiming the transaction with a locking read before booking. Closed a hole where a zero-total fee could mark a course paid for life, and made fee rollbacks reverse their ledger entries.
WhatsApp and Telegram, wired into the CRM
The CRM side of the academy's WhatsApp sales assistant — one thread per contact, agent takeover, questions asked only when the answer is still unknown, and calls booked by the bot itself — plus Desk controls for the Telegram support bot: prompts, replies, rate and spend caps, key rotation.
Workshop commerce, end to end
Ported the recorded-workshop site from standalone Flask into the Frappe monolith: registration → Cashfree order → webhook → auto Sales Invoice → academy access. Discord roles granted automatically on payment.
The funnel report the founders read every Monday
A PDF mailed every Monday at 07:00 IST that re-scores eight past trial cohorts — trials convert a median of 11 days after starting — and attributes revenue only to purchases made after each student's own trial began.
Contact
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