Headline

Software Engineer @ NatWest Group | Building Production-Grade RAG & MCP Systems | Python, FastAPI, Cloud-Native Data Platforms

About

I build production-grade AI systems — from Retrieval-Augmented Generation pipelines to Model Context Protocol integrations — that solve real infrastructure problems at scale. As a Software Engineer at NatWest Group, I work on cloud-native data platforms, applying LLMs and RAG to make systems smarter and more reliable. I also write publicly about the system design problems I solve, including cache invalidation and event-driven architecture at scale. Before NatWest, I built backend systems as an intern at Aamara Technologies (Django REST APIs, Dockerized deployments on Kubernetes, database query optimization) and at Pods Studio (Python/Docker microservices, API testing). I graduated from Ramaiah Institute of Technology with a 9.06 CGPA in Computer Science. I enjoy breaking down complex distributed-systems concepts for others and I'm always looking to work on systems that perform under real-world constraints. Open to new opportunities in backend engineering, AI/LLM systems, and data platforms — let's connect.

Location

Bengaluru

AI stack

anthropic apis

claude code

claude

deepseek

hugging face

kiro

Work experience

Software Engineer at NatWest Group, Jul 2025 - Present · 1 yr 4 mos, Bengaluru

Backend Developer intern at Aamara, Mar 2024 - Oct 2024 · 8 mos, Bengaluru, Built a full-stack HR management system for Techno Rings (20,000+ machinery and employee records) using Django + React, reducing manual processing time from 4 hrs/day to under 30 minutes — a 87% reduction. Implemented scalable backend modules for attendance tracking, payroll calculation, and equipment management using Django and MySQL; exposed via REST APIs consumed by a React frontend.

Software Engineer Intern at Pods Studio, Sep 2023 - Nov 2023 · 3 mos, Built 43 REST APIs in FastAPI/Django powering core app features — user auth, data validation, and third-party integrations — serving 20,000 active users. Automated personalized email communication workflows using event-driven triggers (Celery + cron), reducing manual outreach effort and improving user retention by 27%.

Education

Bachelor of Engineering - BE, Computer Science, Ramaiah Institute Of Technology

PUC, MPC, Tirumala

Public links

github: https://github.com/SaiMouli3

sai-mouli-portfolio.vercel.app: https://sai-mouli-portfolio.vercel.app⁠/