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Principal Engineer · AI-Augmented Systems

Abhishek Rawat

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I design systems that scale and build products that matter — from fintech payment rails to AI-powered enterprise assistants.

9+
Years of Experience
Employee of the Year
8+
Industry Domains
Remote Ready

Built to lead.
Designed to scale.

I'm a Principal Engineer & Technical Lead with over 9 years building, modernizing, and scaling enterprise-grade systems — from US fintech payment rails to AI-augmented enterprise assistants. I don't just write code; I own architectures, mentor teams, and drive decisions that shape products.

My edge is the rare combination of deep backend engineering (Java, Spring Boot, microservices) and hands-on AI delivery (OpenAI, RAG, vector databases). I've been twice recognized as Employee of the Year — because I treat every system like it has my name on it.

Fintech Digital Banking Healthcare Supply Chain AI / LLM Trading Platforms Enterprise Systems Remote-First

Technologies I Command

A curated stack refined over 9 years of production-grade engineering.

⚙️
Backend & APIs
Java Spring Boot Hibernate Python FastAPI RESTful APIs
🤖
AI / LLM & Data
OpenAI APIs Prompt Engineering RAG pgvector Vector Databases PostgreSQL
🏗️
Architecture
Microservices Modulith System Design Event-Driven Distributed Systems Performance Opt.
☁️
DevOps & Cloud
Docker CI/CD AWS Azure Linux
🗄️
Databases
PostgreSQL MySQL MongoDB SQLite
💻
Frontend
React.js TypeScript HTML CSS

The Journey

Almost a decade of continuous growth — from trainee to principal.

Technical Lead / Principal Engineer
Mind IT Systems — Delhi, India
📅 Jul 2021 – Present
  • Leading architecture & delivery of Spring Boot platforms using microservices and modulith patterns, choosing the right approach for each product's scale.
  • Acting as primary technical owner — accountable for long-term scalability, system design, and maintainability.
  • Building and integrating AI-augmented backend services using Python, FastAPI, OpenAI APIs, and pgvector.
  • Mentoring engineers, driving code reviews, and elevating engineering quality & productivity across the team.
  • Awarded Employee of the Year — Twice for exceptional leadership, ownership, and delivery impact.
Fintech AI/LLM System Design Leadership
Senior Software Engineer
Mind IT Systems — Delhi, India
📅 Oct 2016 – Jul 2021
  • Designed & developed high-performance REST APIs using Java and Spring Boot across multiple domains.
  • Delivered backend systems across fintech, e-commerce, supply chain, healthcare, and trading domains.
  • Worked on monolithic, modulith, and microservice architectures — developing strong architectural judgement.
  • Improved system reliability through query optimization, refactoring, and modularization.
Banking Healthcare E-Commerce Microservices
Software Trainee
Mind IT Systems — Delhi, India
📅 Jul 2016 – Oct 2016
  • Trained in Java, backend development, and database fundamentals.
  • Quickly ramped up to production responsibilities, leading to early promotion to a full-time engineering role.
Java Backend

Systems I've Built

Enterprise-grade products across 8 domains, delivered with ownership.

Niyo App
1.5 Years
🏦 Digital Banking Platform

Backend systems for an Android digital banking app. Built APIs for account management, transactions, statements, and expense analytics with spending-trend insights.

Java Spring Boot MySQL REST APIs
Taiba HMS
1.5 Years
🏥 Healthcare · HMS Migration

Re-architected a large Hospital Management System from a JSP monolith to React + Spring Boot. Designed APIs for long-term extensibility with minimal disruption to hospital operations.

Java Spring Boot React.js PostgreSQL
COT — Container Optimizer
6 Months
📦 Supply Chain · Optimization

Algorithm-driven backend to optimize container filling by volume, weight, and dimensions. Maximized container utilization and reduced manual logistics planning effort significantly.

Java Spring Boot Algorithms
Algotic
6 Months
📈 Algo Trading Platform

Backend for an algorithmic trading platform on Paytm Money broker APIs. Enabled automated trades based on predefined strategies with secure order placement, execution tracking, and status updates.

Java Spring Boot Broker APIs
SB Inventory
2 Months
📊 AI Automation · Inventory

AI-driven inventory reconciliation tool mapping external order sheets to internal systems. Used vector embeddings and similarity search to normalize inconsistent data — drastically reducing manual effort.

Python OpenAI pgvector SQLite
EPrabhat
6 Months
📚 Digital Publishing · DRM

License-based eBook platform with a proprietary desktop eReader. Implemented DRM — purchased books only accessible through the platform's app via purchase validation, license enforcement, and reader authentication.

Java Spring Boot DRM PostgreSQL

Achievements & Credentials

🏆
Employee of the Year — 2×
Awarded twice at Mind IT Systems for exceptional leadership, ownership, and delivery impact.
🎓
B.Tech — Computer Science
Dr. A.P.J. Abdul Kalam Technical University (AKTU)
📜
Microsoft Azure AI Fundamentals
AI-900 Certified — Microsoft Azure AI services & workloads.
🚀
Trainee → Principal in One Company
Full career arc built through merit and consistent delivery — trusted technical owner for business-critical systems.

Open to Remote
Opportunities

Comfortable in distributed, high-ownership teams. Strong adopter of AI-assisted engineering workflows. Let's build something great.