Hello! 👋

I'm Lalith Sai Kumar

Software Engineer

I build reliable backend systems, data-driven services, and ML prototypes that turn complex problems into production-ready solutions.

About

Final-year Artificial Intelligence and Data Science student with hands-on experience in backend system design, serverless architectures, and machine learning. Proficient in building scalable applications with PostgreSQL, REST APIs, and cloud-native technologies. Recent contributions include refactoring open-source codebases for improved domain clarity and developing a financial analytics platform handling 1K+ daily data updates with optimized caching. Strong foundation in Data Structures, Algorithms, Object-Oriented Programming, and full-stack development. Proven ability to collaborate effectively in agile environments, deliver production-ready solutions, and apply engineering principles to solve real-world challenges.

My Tech Stack

Languages

Python Java C SQL (PostgreSQL)

Backend Frameworks

FastAPI Django Flask

Backend & APIs

REST API Design Request Validation Authentication Basics

Databases

PostgreSQL Relational Schema Design Indexing NoSQL Fundamentals (Redis)

DevOps & CI/CD

Docker Git GitHub Actions Postman Linux AWS

Distributed Systems

Service Decomposition API Rate Limiting Fault Handling (Foundational)

Core CS

Data Structures and Algorithms OOP Operating Systems DBMS

Coding Profiles

Projects

01 Live

Financial Analytics Platform

Financial Analytics Platform dashboard hero Financial Analytics Platform dashboard view Financial Analytics Platform stocks view

Serverless backend platform ingesting live stock data for 150+ NSE-listed stocks with PostgreSQL schemas, external API integration, and hash-based caching reducing API calls by 70-80%. Handles 1K+ daily data updates with ownership-based access control.

PostgreSQL REST APIs Serverless Functions Supabase
Code Live Demo
02 Preview

AI Campus Chatbot with Local RAG & Gemma2

PREVIEW

Preview coming soon

A full-stack, privacy-first chat assistant for campus information with RAG and locally-hosted Gemma2:2b model. Features real-time chat UI, custom knowledge base, and runs entirely offline.

Python Flask JavaScript Ollama FAISS
Code
03 Preview

Real-Time AI Risk Scoring System

PREVIEW

Preview coming soon

Real-time ML pipeline processing 100+ IoT endpoints with anomaly detection. Enhanced system performance by 30% and deployed scalable solution to GCP serving 3+ teams.

Python Scikit-learn GCP Docker
Code
04 Preview

Car Dealership Cloud Application

PREVIEW

Preview coming soon

Full-stack web app with authentication, admin panel, and data management. Improved user experience by 40% through backend enhancements and reduced load times by 20%.

Python Django REST APIs HTML/CSS
Code

Experience

Open Source Contributor

Activist (GitHub), Remote

Dec 2025
  • Refactored backend and frontend modules to improve domain clarity and data consistency
  • Updated APIs, shared types, tests, and documentation to align with revised domain models
  • Collaborated with maintainers through structured pull requests, reviews, and CI fixes

Software Engineer Intern

Proven Solution, Riyadh, Saudi Arabia, Remote

Oct 2024 – May 2025
  • Designed and tested ML algorithms achieving 85% accuracy for telemetry systems
  • Developed scalable inference engine reducing latency by 30 seconds
  • Built and debugged REST APIs in collaborative team environment
  • Contributed to 15+ Agile sprints and reviewed 50+ PRs

Education

Bachelor of Technology in Artificial Intelligence and Data Science

Sree Rama Engineering College (Affiliated to JNTUA), Tirupati, India

Oct 2022 - Expected Apr 2026
  • Specializing in Artificial Intelligence and Data Science
  • Strong foundation in Machine Learning and Deep Learning
  • Coursework in Data Structures, Algorithms, and Statistical Analysis

Certifications

Oracle Issued Oct 2025

Oracle Cloud Infrastructure 2025 Certified AI Foundations Associate

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Foundational AI/ML concepts with OCI services plus GenAI and LLM basics, with secure deployment patterns.

edX Issued Apr 2024

Analyzing Data with R

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Data wrangling, visualization, and statistical testing in R to ship decision-ready insights.

IBM Issued Apr 2024

Full Stack Application Development Project

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Built a full-stack app with responsive UI, RESTful backend, and a deployment workflow tuned for performance.

JPMorgan Chase & Co. Issued Jan 2024

Software Engineering Job Simulation

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Simulated trading dashboards, code cleanup, and performance tuning for real-time data pipelines.

Cisco Issued Nov 2023

Python Essentials 1

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Core Python constructs, problem-solving patterns, and clean code habits for backend and scripting.

Contact

Have a project, collaboration, or question? Drop a line and I’ll reply soon.

I respond to most messages within 24–48 hours.