Senior Full Stack Engineer

Architecting
Scalable Systems
With Precision.

Senior Backend / Full Stack Engineer | 8+ Years | FinTech, AI & SaaS Systems | 20M+ Records

Specializing in high performance backends, AI automation, and distributed systems. I transform complex technical challenges into robust, production ready solutions.

Professional Summary

Senior Backend / Full Stack Engineer with 8+ years of experience designing and owning scalable systems across FinTech, AI, and SaaS domains. Specialized in Laravel-based architectures, high volume data processing (20M+ records), asynchronous pipelines, and AI powered automation. Proven track record of delivering production grade platforms with measurable performance and reliability.

Panneer Selvam

8+ Years Experience

Laravel

Expertise

Python

AI Mastery

Background

Deep Engineering
& System Leadership

With over 8 years of specialized experience in backend architecture and full stack development, I've lead the engineering efforts for diverse projects ranging from fintech transaction engines to cutting edge AI support systems.

My approach is defined by maintainability, security, and extreme performance. I don't just write code; I design systems that scale linearly with business growth, ensuring technical debt stays low while delivery speed stays high.

I design systems with clear domain boundaries, async pipelines, observability first monitoring, and failure safe defaults for production scale.

Founder of V2Globe, building AI driven SaaS platforms and internal engineering systems that automate complex business workflows.

30+

Projects Delivered

20M+

Records Processed

Core Technical Expertise

Backend Systems & Architecture

Laravel Architect PHP Expert PostgreSQL & Redis Horizon & Jobs Domain Driven Design Async Processing

AI & Data Engineering

RASA / NLP Bots ChromaDB & Vector Search Typesense Search Multi-LLM Orchestration Python (Celery/Flask) RAG Pipelines

Integrations & Ecosystem

Stripe / Authorize.net MX API (Fintech) Zapier / Klaviyo ActiveCampaign / OCR GitHub REST API's Expert API Security & OAuth

DevOps & Product Design

Jenkins Deployment Sentry / Bugsnag Laravel Pulse / Monitoring Vue.js & Inertia.js Filament (Admin UI) System Design Expert

Portfolio

Featured Projects

A selection of industrial grade systems developed with a focus on architecture and performance.

Transaction Data Storage & Analytics System (FinTech)

FinTech System Owner 20M+ Records

Case Study 01

Architected and owned a high-throughput financial data warehouse ingesting 20M+ records from MX API, featuring production-grade reliability and sub-3 second analytical performance.

Engineering Highlights
  • High throughput pipeline batching 1,000 records/call into parallel async queue jobs
  • Implemented concurrency safe upsert logic and rigorous data validation for financial accuracy
  • Optimized PostgreSQL indexing and TypeSense integration for real time analytical queries
Role & Scale

System Owner & Architect • 20M+ Transactions

Technical Impact

Delivered linear scalability for financial insights, reducing data latency and enabling sub-3 second query times.

Laravel PostgreSQL Redis/Queues MX API Typesense Async Processing

AI Knowledge Retention & Support Assistant (Slack)

AI & NLP Project Head Slack Integrated

Case Study 02

Built an AI support system converting 4+ years of Slack history into a searchable knowledge base using hybrid semantic search and intent-based reasoning.

Key Innovation
  • Orchestrated RASA + ChromaDB for sub second intent detection and context retrieval
  • Integrated Slack Real-Time APIs for seamless internal knowledge accessibility
  • Automated lookup workflows, drastically reducing manual support resolution time
Role & Delivery

Project Head • Delivered in 240 hrs (40% faster than planned)

Outcome

60%+ reduction in support lookup time, earning high client appreciation for rapid delivery and system depth.

Python RASA ChromaDB Flask Celery Slack API

AI Based Instagram Strategy & Content Generator

Founder Project Fully Owned SaaS AI Orchestration

Case Study 03

Designed and built an AI powered Instagram content strategy platform that generates end to end viral ready content plans based on niche, audience level, and creator intent.

Architecture & Capabilities
  • Multi LLM orchestration (OpenAI, LLaMA, Qwen) with automatic provider fallback
  • Generates scripts, hooks, viral scoring, and strategic reasoning for creator success
  • Implemented abuse screening, rate limiting, and async generation for production scaling
Role & Ownership

Founder • Product Architect & Backend / AI Engineer

Strategic Impact

Automated end to end content strategy with production grade reliability, proving complete product ownership and AI depth.

Laravel OpenAI API HuggingFace LLaMA/Qwen Async Processing

AI Travel Itinerary & Location Intelligence Platform

Founder Project Fully Owned Location Intelligence

Case Study 04

Designed and developed an AI-powered travel intelligence platform that allows users to save travel locations and generate personalized itineraries based on trip constraints and preferences.

Engineering & Logic
  • Clean domain based data modeling for locations, trips, and user preferences
  • Dynamic route and day wise planning logic with error tolerant generation pipelines
  • Scalable backend workflows for automated itinerary regeneration and updates
Role & Vision

Founder • Product Architect & Backend Engineer

Strategic Impact

Delivers automated, high precision trip planning from saved user data, showcasing advanced system reliability.

Laravel AI APIs Data Modeling REST APIs

Smart Kitchen AI Assistant

Founder Project R&D Product Voice Synth

Case Study 05

Built an AI driven smart kitchen assistant that manages grocery inventory, generates personalized meal plans, and provides voice guided cooking support.

Technical Prowess
  • Inventory aware AI reasoning for stock based menu generation
  • Automated detection of missing ingredients with purchase recommendations
  • Multilingual voice synthesis for step by step guidance and preparation logic
Role & Design

Founder • AI Product Designer & Engineer

Impact

Demonstrates applied AI reasoning in real world consumer automation, bridging software and physical environment.

Gemini AI API AI Reasoning Automation Workflows Voice Synthesis

Let's build
something Epic.

Currently open to strategic architectural roles, technical leadership, or high impact backend consultancy.

Direct Contact

panneermca2017@gmail.com

Availability

Open to Remote | Hybrid | Onsite (India / Global)

Social Feed

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