Hello, I'm

Aghilan Baskar

Senior Software Engineer · Full Stack Developer

7+ years building wallet, payment, notification and integration platforms. Currently leading a backend team at mFine, previously at HighLevel.

View resume Get in touch

Experience: 7+ yrs
Users on wallet & payments: 10M+
Notification events handled: 50M+
Engineers led: 2–4

// about

A little bit about me

I'm a backend engineer who likes owning systems end to end, from high-level design and schema to vendor API contracts and rollout. I've spent 7+ years building systems where correctness matters: wallets, payments, payouts and notifications.

At mFine I lead a team of 2–4 backend engineers building RBI-compliant wallet and QR payment flows for 10M+ users. Before that, at HighLevel, I ran a 50M+ event notification service and owned the Meta and Google integrations for the CRM.

Lately I've been building AI agents with LangGraph and LangChain, and using Claude Code for day-to-day AI-assisted development across my team.

// experience

Where I've worked

Senior Software Engineer – Backend · mFine

Sep 2024 – Present · Bangalore

A LifeCell International company
- Lead a team of 2–4 backend engineers: sprint planning, code reviews, system-design mentoring, and AI-assisted development with Claude Code.
- Built and scaled wallet, QR payment and payout systems for 10M+ users with RBI-compliant flows, including corporate OPD wallet allocation, audit-trailed claim deductions and top-ups.
- Led the greenfield VisionSure integration for cashless optics purchases on Lenskart for corporate users, owning system design, schema (per-cart wallet blocking, external TPA wallets) and vendor API contracts.
- Eliminated booking race conditions with Redis soft-lock reservations, and ran a zero-downtime MongoDB index migration using partial indexes.
- Designed chatbot APIs for Grow Aasan support automation (wallet balance, eligibility, user validation) with automated CRM ticketing.
- Node.js
- LoopBack JS
- MongoDB
- Redis
- React
- AWS
Software Development Engineer II – Integrations · HighLevel

May 2022 – Jul 2024 · Remote

CRM platform
- Owned a notification service processing 50M+ events, adding Email, SMS and Push channels through a System Notification API used by cross-functional teams.
- Built a Notification Preferences module with per-user channel settings, increasing notification click-through rate by 50%.
- Built LoginAs, letting agency admins switch into account admins and accounts to reproduce issues, which improved issue-resolution efficiency by 40%.
- Migrated user permissions from boolean flags to scope-based authorization with the platform team, securing OAuth, web app and internal APIs.
- Led integrations with Facebook, Instagram and Google Business Profile, bringing Facebook Lead Ads, Google and Facebook reviews, and Messenger, Instagram and Google Business messages into the CRM.
- Drove adoption of Vue 3 micro-frontends with module federation and internationalization.
- Node.js
- NestJS
- Vue 3
- Module Federation
- GCP
Software Engineer, R&D · Logic Research Labs

May 2019 – May 2022 · Kumbakonam
- Diabwellness (sole developer): built a doctor-appointment platform with Google Calendar, SendGrid and Razorpay integrations, cron-based prescription reminders and WebSocket real-time chat.
- Gradskey: converted a social platform into a PWA with push notifications, hardened login and signup security, and set up Git-hook deployments on VPS.
- Node.js
- Express
- Vue (Vuetify)
- MongoDB
- PHP (CodeIgniter)
- PostgreSQL
- jQuery
- DigitalOcean

// projects

Things I've built

Featured · AI

AI Video Generation & Publishing Agent

A LangGraph ReAct agent that turns plain-English commands into multi-step media workflows, from script to render to publish, running daily on autopilot.

9 Zod-typed tools (content scan, render, AI metadata, upload) with a dry run and human confirmation before any public upload.
Provider-agnostic LLM layer that switches between Groq (Llama 3) and Gemini through config, with exponential backoff that honours retry-after hints.
7 end-to-end pipelines: LLM scripts and SEO metadata, TTS voiceover (ElevenLabs, gTTS), Remotion rendering, and auto-publishing to YouTube, Instagram Reels and Facebook.
Cut LLM token cost with per-collection metadata caching. Stateful cron jobs handle lockfiles, retries and missed-day catch-up.

LangGraph
LangChain
Node.js
Remotion (React)
YouTube & Meta Graph APIs

See the channel

Professional

Gradskey

Logic Research Labs · Social platform

Social network for students, professionals and academicians. I turned it into a PWA with push notifications, hardened auth, and set up Git-hook deployments.

PHP
CodeIgniter
PostgreSQL
PWA

Diabwellness

Logic Research Labs · Healthcare

Diabetic patient management and doctor-appointment app, built solo. Patients view and download prescriptions, bills and reports, and chat in real time.

Node.js
Vue
MongoDB
Razorpay
WebSockets

Personal & open source

Inverter Battery Calculator

Size an inverter (VA) and battery (Ah) from your appliance load, power factor and backup hours.

Vue 3
Tailwind

HTTPS Enabler for CentOS

Bash script that automates Apache virtual host setup and enables HTTPS with Let's Encrypt and Certbot.

Bash
Apache

Zoom PHP

Composer package for the Zoom OAuth API that handles token refresh internally.

PHP
OAuth

Zoho Mail CLI

Node CLI to authenticate with Zoho Mail and read account and message data.

Node.js
CLI

// writing

Articles

Technical writing on Medium and Geekflare.

Medium

HTTPS on localhost with XAMPP

Enabling HTTPS in XAMPP using an Apache virtual host.

Geekflare

HTTPS on Apache with Let's Encrypt

Securing an Apache virtual host on Ubuntu or CentOS with Let's Encrypt and Certbot.

Blogspot

Deploy a Vue SPA in a subfolder

How to deploy a Vue.js single-page app under a subfolder on Apache.

// skills

What I work with

Backend

Node.js
NestJS
Express.js
REST API design
Event-driven systems
PHP

AI / Agents

LangGraph
LangChain
ReAct agents
Tool calling
Prompt engineering
Groq (Llama 3)
Gemini
Claude
Claude Code

Databases & caching

MongoDB
Partial indexes
Zero-downtime migrations
PostgreSQL
MySQL
Redis
Firestore

Frontend

JavaScript
React
Vue 3
Nuxt.js
Vite
Tailwind CSS
Micro-frontends
Module federation

Cloud & DevOps

AWS
GCP
DigitalOcean
Docker
Kubernetes
Git
GitHub
Release automation

Engineering

System design (HLD/LLD)
Payment & wallet systems
Third-party integrations
Code review
Mentoring

// education

Education

B.Tech, Computer Science & Engineering

College of Engineering, Guindy (Anna University), Chennai

2015 – 2019

// contact

Let's build something reliable

I'm open to conversations about backend, payments and platform engineering, and about AI agents.

aghilanbaskar@gmail.com LinkedIn