Open to opportunities

Lekha Karthikeyan

@lekhakarthikeyan

Message

Software engineer specializing in backend systems, database migrations, and scalable API architecture.

India

Message

What I'm looking for

I seek backend-focused roles where I can design scalable APIs, lead migrations/replatforming, work across distributed teams, and own production reliability.

I am a backend-focused software engineer with hands-on experience designing scalable APIs, migrating data platforms, and replatforming legacy systems into service-oriented architectures. I have led database migration strategies, implemented GraphQL schemas for cart and checkout workflows, and built high-performance APIs to handle large-scale account operations.

My background includes impactful contributions at Wayfair and Amazon where I optimized CDN and cache infrastructure, developed tooling to improve CloudFront performance, and integrated Alexa features on Android tablets. I emphasize test coverage, zero-downtime deployments, cross-team collaboration across time zones, and production ownership including on-call responsibilities.

Experience

Work history, roles, and key accomplishments

Current

Software Development Engineer

Current

Wayfair

Mar 2024 - Present (1 year 10 months)

Architected zero-downtime database migration from NoSQL to relational systems and designed GraphQL APIs for cart and checkout, improving reliability and scalability across a replatformed service-oriented architecture.

Data Migration GraphQL Microservices API Design Test Coverage Distributed Systems On Call

Software Development Engineer

Amazon

Jul 2021 - Feb 2024 (2 years 7 months)

Optimized CloudFront and cache infrastructure to reduce throttling and improve invalidation, built CLI/tools for cache management, and contributed Java Android features and keyboard integrations for Alexa/tablet products.

Cloudfront Caching Java CLI Tools Performance Optimization Cache Invalidation FireOS Debugging

Software Development Engineer Intern

Amazon

Jan 2021 - Jul 2021 (6 months)

Built a Spring MVC metrics dashboard integrating platform APIs to surface QA graphs and migrated Android packages to AndroidX, ensuring FireOS 8 compatibility for OOBE WiFi flows.

Spring MVC Android Dashboards FireOS

Education

Degrees, certifications, and relevant coursework

SRM Institute of Science and Technology

Bachelor of Technology, Computer Science and Engineering

2017 - 2021

Grade: 9.04 CGPA

Activities and societies: Projects: Artificial Neural Networks, Big Data Analytics, Convolutional Neural Networks; internship at Amazon; coursework in backend development and cloud technologies.

Completed Bachelor of Technology in Computer Science and Engineering with a 9.04 CGPA, focusing on backend development and related projects.