Sanjay Gopal

About Me & Technical Expertise

Senior Software Engineer with over 7+ years of experience in designing and developing robust backend systems, microservices, and scalable architectures. I specialize in cloud platforms like AWS, container orchestration with Kubernetes, and building high-performance APIs that serve millions of requests.

7+

Years Experience

50+

Microservices Built

99.9%

Uptime Achieved

💻

Backend Development

Python, Java, Node.js, TypeScript

☁️

Cloud Architecture

AWS Lambda, S3, API Gateway, ECR, EC2, SQS, RDS

🗄️

Database Management

MySQL, PostgreSQL, MongoDB, DynamoDB

🚀

DevOps & CI/CD

Docker, Kubernetes, Jenkins, Harness

🔗

Microservices & APIs

RESTful APIs, FastAPI, Django REST

Professional Journey

UST

Software Engineer

UST Global Inc • Jun 2025 - Present

Built Lambda-based APIs to ingest and validate FHIR resources, handling errors, and providing real-time feedback via AWS CloudWatch
Leveraged Amazon Q to optimize developer workflows and enhance documentation access for internal engineering teams
Developed and deployed AWS Lambda functions (Java/Python) for event-driven processing and data transformation in real-time
Developed unit tests using PyTest and unittest to validate functionality, improve code quality, and ensure reliability across Python applications

CB

Senior Software Engineer

Citibank • Sep 2024 - May 2025

Built Python-based microservices with MongoDB integration
Implemented OAuth 2.0 security protocols
Managed Kubernetes deployments and orchestration
Automated CI/CD pipelines with Jenkins and Harness

HH

Senior Software Engineer

Highmark Health • Jun 2024 - Aug 2024

Led Azure Databricks to Unity Catalog migration
Designed PySpark data pipelines on Google Cloud Platform
Optimized BigQuery performance for large-scale analytics

NT

Lead Software Engineer

NTT DATA Services • Feb 2023 - Dec 2023

Architected REST APIs using FastAPI and Django frameworks
Designed AWS Lambda serverless applications
Managed large datasets with Pandas and NumPy optimization

AP

Senior Software Engineer

Apisero • Jan 2022 - Jan 2023

Led API design and development for insurance clients
Implemented comprehensive security policies
Deployed scalable AWS cloud solutions

Improved deployment efficiency by 90%

Managed data migration for enterprise clients

Led security implementation across multiple APIs

Featured Projects & Technical Solutions

🏗️

Enterprise Microservices Platform

Built scalable Python microservices architecture serving 10M+ API calls/day with auto-scaling, fault tolerance, and comprehensive monitoring.

Python FastAPI MongoDB Kubernetes AWS

10M+ API Calls/Day

99.9% Uptime

View Details See Code

☁️

Cloud Migration & Data Pipeline

Led enterprise data migration from Azure Databricks to Unity Catalog. Processed 100TB+ data with PySpark, optimized BigQuery performance by 40%.

PySpark GCP BigQuery Delta Live

100TB+ Data Processed

40% Performance Boost

View Details See Code

🚪

Multi-Client API Gateway

Designed secure API gateway serving 5+ insurance clients with OAuth 2.0, rate limiting, SSL/TLS. Handled 1M+ daily transactions.

API Gateway Lambda DynamoDB JWT

1M+ Daily Transactions

5+ Clients Served

View Details See Code

📊

Real-time Analytics Dashboard

Developed React.js dashboard with real-time data visualization. Integrated with Python backend APIs, implemented efficient caching with Redis.

React.js Python Redis Chart.js

Real-time Data Updates

60% Faster Load

View Details See Code