Badal Sahani · Senior Frappe/ERPNext Engineer · Tech Lead
I build revenue-grade platforms — ERP and payments at the core, with the AI tooling, realtime systems, and cloud infrastructure around them — and lead the 8–10 engineers who ship it all. Hands-on daily, from schema to Terraform to the LLM pipeline reviewing our PRs.
Fee transactions verified, deduplicated, reconciled
HMAC-signed webhooks, idempotent, replay-safe
Custom Frappe apps in production
thin overlays over one shared core — no forks
Users served across institutions
4–5 education groups, one multi-tenant core
Payment gateways integrated
behind one pluggable router, HMAC-verified
Bank payout rails connected
incl. ISO 20022 over GPG-encrypted SFTP
Notices API latency, before → after
query restructuring + Redis caching
Infrastructure cost reduction
documented, with a raised security posture
The platform's entire revenue system — 40+ DocTypes on ERPNext, from payment plan to GL posting.
An EMI lifecycle state machine with single-writer settlement eliminated double-booked payments; auto-posted settlement Journal Entries removed manual reconciliation.
An automated code-review pipeline: every pull request is read by an LLM, grounded in the changed code's context, before a human ever sees it.
Reviewers start from a machine-annotated diff instead of a cold one — cutting review turnaround and catching the boring bugs before humans spend attention on them.
One shared core serving 4–5 institutions and 20–30k users — 25+ custom Frappe apps, 250+ DocTypes.
New institutions onboard without forking the platform; the core stays clean through Frappe version upgrades.
Multi-tenant architecture where correctness is the feature: one core, many institutions, no forks.
AI as infrastructure, not garnish — wired into the team's daily loop where it compounds.
Infrastructure as code, delivery as GitOps, secrets as references — nothing hand-built, nothing plaintext.
High-volume fee collections through code I own — every transaction posted, verified, and reconcilable.
Building on Frappe and need someone who has shipped it at scale — payments, upgrades, infrastructure, team and all?