Sumanth Reddy Mereddy

Python Full Stack Engineer
SC, US.

About

Highly accomplished Full Stack Software Engineer with 4+ years of experience specializing in Python-based microservices, cloud-native architectures, and modern web applications within the banking and financial services sector. Proven expertise in building scalable, high-availability, and compliant (PCI, FCRA) systems, integrating advanced AI/ML capabilities to optimize decision support and automate processes. Drives measurable business outcomes by translating complex requirements into production-ready solutions.

Work

Capital One Financial Corporation
|

Full Stack Software Engineer

USA, US

Summary

Led the development of Python-based microservices and React/TypeScript frontends for critical banking applications, ensuring compliance and enhancing customer experience.

Highlights

Developed scalable FastAPI and Django microservices for credit decisioning and payment processing, handling 50,000+ monthly applications with sub-4s response times.

Built and deployed AI-assisted decision support components using Python and ML models, reducing manual document review effort by 25%.

Designed a high-performance React and TypeScript widget, achieving under 2-second load times and improving partner conversion by 18% across 5+ platforms.

Optimized MongoDB session storage and Redis caching layers, reducing API latency by 40% during peak traffic.

Delivered five major partner integrations within one year, contributing to $150M in incremental lending growth.

IBM
|

Software Engineer

India, India

Summary

Developed and maintained Python microservices and ETL pipelines for retail banking, focusing on customer onboarding and digital payment workflows.

Highlights

Developed Python microservices using FastAPI and Flask, supporting over 5 million retail banking users for customer onboarding and digital payment workflows.

Implemented asynchronous transaction processing with Celery and RabbitMQ, increasing real-time reconciliation throughput by 35% during peak hours.

Designed and maintained Python ETL pipelines using Pandas and SQLAlchemy to migrate and cleanse over 1.8M customer records.

Tuned PostgreSQL and MongoDB queries, improving API response times from 1.2 seconds to under 700ms.

Built Jenkins CI/CD pipelines with automated testing, maintaining over 92% test coverage and reducing release cycles to five days.

L&T Infotech
|

Software Developer

India, India

Summary

Developed Python-based automation frameworks and ETL pipelines to enhance testing efficiency and data validation for large-scale datasets.

Highlights

Developed Python-based automation frameworks using PyTest and Selenium, reducing manual regression testing effort by 65%.

Built ETL and data reconciliation pipelines with Pandas and SQLAlchemy, validating large-scale datasets with 98% accuracy.

Implemented an ML-driven defect prediction model using scikit-learn, identifying high-risk modules and reducing post-release defects by 22%.

Integrated automation suites into Docker-based Jenkins pipelines, accelerating feedback cycles by 50%.

Education

Campbellsville University
Campbellsville, KY, United States of America

Master of Science

Computer Science

Jawaharlal Nehru Technological University Hyderabad
Hyderabad, India

Bachelor of Technology

Civil Engineering

Languages

English

Skills

Programming Languages

Python, JavaScript (ES6+), TypeScript.

Backend Development

FastAPI, Django, Django REST Framework (DRF), Flask, RESTful APIs, GraphQL.

Frontend Development

React.js, Next.js, Redux Toolkit, HTML5, CSS3, Tailwind CSS.

Databases & Caching

PostgreSQL, MongoDB, MySQL, Redis, SQL.

Cloud & DevOps

AWS (EC2, S3, Lambda, RDS, ECS, EKS, CloudWatch), Docker, Kubernetes, GitHub Actions, Jenkins, Terraform, Nginx.

AI & Machine Learning

Machine Learning Fundamentals, Model Integration in Production, Scikit-learn, Pandas, NumPy, LLM Integration (OpenAI APIs, LangChain), Prompt Engineering, Retrieval-Augmented Generation (RAG), Vector, Natural Language Processing (NLP), Semantic Search.

Asynchronous & Event-Driven Systems

Celery, RabbitMQ, AWS SQS, AWS Step Functions, Redis.

Testing & Quality Engineering

PyTest, Unittest, Selenium, Postman, JMeter, TDD/BDD.

Security & Compliance

OAuth 2.0, JWT Authentication, Role-Based Access Control (RBAC), SSL/TLS, PCI-DSS, FCRA.

Monitoring & Observability

Prometheus, Grafana, ELK Stack, Sentry, New Relic.

Development Practices & Tools

Object-Oriented Programming (OOP), System Design, Design Patterns, Agile/Scrum, Git, Jira, Swagger/OpenAPI, Linux/Unix.

Soft Skills

Leadership, Problem-Solving, Data Validation, Analytical Thinking, Strategy Planning, Time Management.