Portfolio

Abdul Hajees S

AI/ML Engineer · LLM Applications

AI/ML Engineer building production LLM systems: provider-agnostic model orchestration, tool-calling agents, streaming backends and multi-channel AI products, taken from architecture through to production delivery.

Contact

me@abdulhajees.inabdulhajees.inlinkedin.com/in/abdulhajeesgithub.com/abdulhajees+91 9361730050Tiruchirappalli, Tamil Nadu, India

Technical Skills

Programming
Python · TypeScript · JavaScript · SQL
AI Systems
LLM Orchestration · Tool Calling · Agentic Workflows · Multi-Provider Model Routing · RAG · Context Engineering · Prompt Engineering · LLM Evaluation
Backend Engineering
FastAPI · REST APIs · WebSockets · Streaming · Serverless Functions · Authentication & SSO · Multi-Tenant Architecture
Frontend
React · Next.js · TypeScript · Tailwind CSS · PWA · Tauri · Capacitor
Data & Storage
PostgreSQL · Redis · Supabase · Firebase · Schema Design · Offline-First Architecture
Cloud & DevOps
Google Cloud (Vertex AI) · Docker · CI/CD · Linux · Cloudflare · Vercel
Product Engineering
System Design · Product Architecture · Design Systems · Technical SEO

Education

B.Tech in Information Technology
M.A.M. College of Engineering and Technology
Jul 2021 – May 2025
Founding Member & Initiator of the College Code Club
2nd Prize Winner, Frontend Web Development Hackathon (Karpagam College of Engineering, Mar 2024)

Experience

AaleeNov 2025 – Present
AI / ML Engineer · May 2026 – Present
AI Engineer · Nov 2025 – May 2026
  • Product lead (internal role) and primary engineer for Aalee Assist, a client-facing AI support SaaS: customisable AI chat with human inbox, escalation and agent routing across a web widget and seven messaging channels.
  • Designed provider-agnostic LLM orchestration supporting 15+ providers and ~45 models (Vertex AI, Gemini, OpenAI, Anthropic, Mistral, DeepSeek) with bring-your-own-key.
  • Engineered Python/FastAPI tool-calling paths, WebSocket streaming, Redis-backed services, shared SSO and multi-tenant domain resolution.
  • Shipped the embeddable web widget, the agent dashboard, and Tauri desktop and PWA builds.
  • Built early backend APIs for Aalee Reach, a lead management platform that captures leads from ad platforms and forms and automates follow-up by email and WhatsApp.
  • Evaluated prompts, tool-calling behaviour and model outputs through test scripts and side-by-side model comparison.
  • Led technical SEO that made Aalee's product sites discoverable on major search engines.
  • Named Star Performer in 4 monthly recognitions.
Champion Award at Aalee, 2026Rising Star Award, 2026
Independent EngineeringMay 2024 – Present
Product Engineer
  • Building Aaptam, an AI-first expense tracker for Android and web whose assistant acts through 35+ tools and answers with interactive widgets.
  • Built and open-sourced Pludo Coder (AGPL-3.0), an AI tool that turns a résumé into a deployed portfolio site.
Remote Engineering Internships
  • Svasti Vector SolutionsWeb Dev InternJul 2024 – Aug 2024
  • Exposys Data LabsFront-End InternJun 2023 – Jul 2023
  • RETECH SolutionsWeb Dev InternJun 2023 – Jul 2023
  • HILIFE.AI Pvt LtdWeb Dev InternJan 2021 – Mar 2021

Selected Projects

Aaptam
AI-first expense tracker for Android and web, in closed testing. Tam, its assistant, acts through 35+ tools and replies with widgets. React, Capacitor, Supabase, Firebase, serverless functions.
Aalee Assist
Omnichannel AI support platform: AI assistant with human escalation across a web widget and seven messaging channels, 15+ LLM providers. Python, FastAPI, React, Vertex AI, Redis.
Pludo Coder
AI portfolio builder that turns an uploaded résumé into a deployed site, with visual and AI editors. Open source under AGPL-3.0.
Nehru's Vision Law Academy
Learning management system with student, staff and admin roles, custom dashboards and content flows, deployed for a law academy.