Backend architecture
REST APIs, async Python services, multi-tenant data models, validation, migrations, and release-ready code.
Python backend + AI automation
Hi, I am Shivam Gupta.
I build reliable Python systems for financial data and AI workflows.
Backend engineer with 2+ years building FastAPI services, async ingestion pipelines, AWS Lambda jobs, and OpenAI-powered reconciliation for custodian files, portfolio transactions, QSR feeds, and enterprise treasury workflows.
FastAPI
OpenAI API
AWS Lambda
PostgreSQL
About
A backend engineer who can own messy data, clean APIs, and practical AI.
My work sits where financial files meet production backend systems. I design FastAPI endpoints, model tenant-aware PostgreSQL schemas, build daily Python automation on AWS, and turn custodian/QSR transaction files into reliable platform data.
AI in production workflows
OpenAI API reconciliation, prompt-driven validation, and AI-assisted debugging, test generation, and documentation.
Cloud automation
AWS Lambda, SQS, S3, CloudWatch, Inspector remediation, and scheduled jobs for daily operational runs.
Selected work
Recruiter-friendly proof: systems, scale, and outcomes.
OpenAI API
Financial validation
AI-powered reconciliation engine
Built a Python reconciliation workflow that checks daily securities holdings from custodian banks against internal balance-sheet data and flags mismatches before manual review.
- Configurable column-mapping profiles for onboarding new custodian banks.
- Designed for explainable mismatch output and audit-friendly operations.
- Focused on real daily work: holdings, transactions, QSR feeds, and portfolio files.
FastAPI
PostgreSQL
Multi-tenant transaction APIs
Architected CUSIP-level ingestion and query APIs across CPs, T-Bills, Bonds, Agencies, and Corporate Bonds for enterprise treasury clients.
- 10+ REST APIs backed by SQLModel and PostgreSQL.
- Tenant-aware SQLAlchemy model generation and migration setup.
- Polars and Dask parsing for high-volume CSV, JSON, and TXT feeds.
AWS
Automation
Serverless daily processing
Created Python Lambda functions and SQS integrations for recurring financial processing, scheduled validation, service monitoring, and cloud hardening.
- Async downstream calls with asyncio and httpx.
- CloudWatch visibility for scheduled and containerized workloads.
- Remediated AWS Inspector vulnerabilities during release cycles.
Experience
Production backend work across Python, APIs, cloud, and automation.
Python Backend + AI Engineer
Building FastAPI microservices, async ingestion workflows, OpenAI-powered reconciliation, AWS Lambda jobs, and tenant-aware PostgreSQL systems for enterprise treasury clients.
FastAPI
OpenAI API
AWS Lambda
SQLModel
Polars
Backend Engineer
Authored REST APIs across Spring Boot and Quarkus microservices, implemented OAuth2 authentication, worked with Kafka and Redis, and shipped backend updates through bi-weekly AWS releases.
Spring Boot
Quarkus
Kafka
Redis
OAuth2
Automation Intern
Built a Selenium automation framework with the PageFactory pattern, covering 30+ end-to-end test cases and reducing manual QA effort for an ESG application.
Selenium
Java
CI/CD
JUnit
Software Intern
Completed structured enterprise training in C#, ASP.NET MVC, and web application development through hands-on projects.
C#
ASP.NET MVC
Enterprise Web
Projects
Project work that supports the backend + AI narrative.
Python / TensorFlow / Flask
Predictive Text Generation System
Built a Bi-LSTM next-word prediction system trained on 20,000+ sequences, reaching 91% accuracy and serving real-time predictions through a Flask interface.
Java / Maven / PostgreSQL
Database Drift Detection Library
Authored a schema comparison library that detects drift across Dev, QA, and Prod PostgreSQL environments and generates SQL reconciliation scripts.
Python / OpenCV / Dlib / Flask
Drowsiness Detection System
Implemented a real-time computer vision pipeline using EAR/MAR thresholds and Dlib/OpenCV face detection, processing roughly 25 frames per second with alerting.
Skills
A practical stack for backend systems and AI-enabled engineering.
Python Backend
Python
FastAPI
Flask
asyncio
httpx
SQLAlchemy
SQLModel
uv
AI + Processing
OpenAI API
Prompt Engineering
Codex
Claude Code
Polars
Dask
Pandas
TensorFlow
Cloud + Systems
AWS Lambda
SQS
S3
ECR
CloudWatch
Inspector
Docker
CI/CD
APIs + Platforms
REST APIs
PostgreSQL
MySQL
Kafka
Redis
OAuth2
Spring Boot
Quarkus
Signals
Consistency, learning velocity, and engineering discipline.
Contact
Need a backend engineer who can ship APIs and use AI responsibly?
I am open to Python backend, AI engineer, and cloud automation roles where clean APIs, strong data validation, and pragmatic AI workflows matter.
- Phone
- +91 7276302388
- Location
- Nagpur, India