Backend engineer and tech lead at Innovasia, where I build billing, integrations and APIs for a WhatsApp Business CRM.
1,116 commits I authored in the product's private repository, February 2025 to September 2026.
| Month | Commits |
|---|---|
| February 2025 | 9 |
| March 2025 | 28 |
| April 2025 | 6 |
| May 2025 | 41 |
| June 2025 | 9 |
| July 2025 | 33 |
| August 2025 | 24 |
| September 2025 | 26 |
| October 2025 | 28 |
| November 2025 | 30 |
| December 2025 | 32 |
| January 2026 | 40 |
| February 2026 | 47 |
| March 2026 | 40 |
| April 2026 | 34 |
| May 2026 | 99 |
| June 2026 | 109 |
| July 2026 | 112 |
| August 2026 | 187 |
| September 2026 | 182 |
billable messages from three months of production traffic checked before switching billing models. One had no price.
Some partners pay Meta's messaging fees through the company, so any send that isn't metered is money lost. I built the quota engine that prices each message from Meta's category rates and deducts prepaid credit idempotently from status webhooks, with deadlock-safe batch jobs and reconciliation reports. The same data now drives postpaid monthly billing, starting October 2026.
per run, for a query that fired every minute
Database CPU spiked whenever broadcasts sped up, yet the sending code looked fine. The cause was a cleanup query that scanned 5.5 million message rows every 60 seconds, almost always to update nothing. Bounding it to an index range removed the load, and sending concurrency went from 10 to 25.
for the heaviest view, with identical results across 20 checks
An insight module where organizations follow donors, conversations and broadcast conversion. Nightly roll-ups precompute each contact's monthly pattern, a 39-second conversion query now takes 1.8 seconds, and the first full roll-up covered all 250 tenants in 7 minutes without a failure.
old URLs from Search Console, each redirected or retired on purpose
I rebuilt the company site as a Laravel app with its own CMS for articles, case studies and partner pages, plus lead forms that feed Notion. All 64 articles kept their exact URLs, so search traffic still lands where it used to. Live since July 2026.
Zakat and wakaf organizations sync donations and pull reports through the partner REST API, where I added API keys with IP allow-lists, idempotent writes, outbound webhooks and one call that provisions a whole tenant. For WhatsApp Flows I rebuilt the webhook bridge so each receiver URL has its own signing secret, the way Stripe signs webhooks, and tenants can recover a drifted encryption key without a support ticket.
A sales-funnel classifier that labels each conversation's stage and sends follow-ups, on rate-limited workers that tell “out of credit” apart from “rate-limited”. WhatsApp Insight, a standalone Laravel 12 app that sorts chats by sentiment, emotion and topic and reuses earlier results so history is paid for once. Most recently, Meta's Business AI agent wired into the CRM, including the handover between AI, automations and human agents.
Also built: a monitoring product for organizations that run many WhatsApp teams, an internal revenue dashboard that reconciles six revenue streams, product catalog sync to Meta Commerce, a support ticketing module, an in-app interactive tutorial, and a design-system refresh across the whole app.
Lead engineering on the CRM: reliability, performance and the newer systems (billing, partner API, analytics, AI features). Datadog APM and SLOs, and first responder when production misbehaves.
Fixed 30+ production bugs across broadcast, chat, transactions and catalog, sped up slow queries on million-row tables, and built broadcast segmentation.
Set up a new branch office: network, hardware and software.
Project manager for a speech-recognition modeling project; taught Python data-visualization webinars.
The CRM is a Laravel monolith with a Node.js service for high-volume sending, talking to Meta's Graph API and serving 200+ organizations from one codebase. The core architecture predates me. I started on bug fixes in early 2025 and grew into leading the engineering, which mostly means keeping it reliable, cleaning up what had grown messy, and building the newer systems on top.
I lean pragmatic. I'd rather ship something correct and observable than something clever, and I measure before I change anything: most of the numbers on this page started as an EXPLAIN plan, a Datadog trace or a count run against production. I also care how software feels, which is why I led the UI refresh across the product.
Bachelor of Engineering, Computer Engineering, 2024. Diploma, Computer Engineering, 2022.
Cisco CCNAv7 (2020, 2021), Data Analytics Essentials and Introduction to Cybersecurity (2024).