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Preetham 16

@preetham16

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Senior full-stack software engineer building scalable cloud-native messaging platforms on React, Node, and AWS.

India

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What I'm looking for

I’m looking for a role where I can own end-to-end delivery of cloud-native systems—driving migrations, building scalable messaging and APIs, and improving reliability, security, and cost on AWS through strong system design and operational excellence.

I’m a Senior Software Engineer with 4+ years building scalable full-stack applications, frontend experiences, and cloud-native messaging platforms. I focus on practical system design, reliable delivery, and measurable operational improvements.

I led an AWS Lambda → Amazon EKS migration end-to-end—owning architecture, proof-of-concept, load testing, deployment planning, and production rollout. I also improved security and compliance readiness by implementing a Field Level Encryption (FLE) framework, including historical data migration and migration tooling under customer-driven timelines.

Across my roles, I’ve driven large-scale performance and stability improvements, including reducing Elasticsearch shard-management overhead by ~90% and enabling near real-time delivery status processing with a self-managed poller service on Amazon EKS consuming Kinesis Streams. I build features that span backend services, REST APIs, UI screens, and deployment pipelines to deliver outcomes like lower infrastructure cost and faster incident response.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

LeadSquared

Apr 2025 - Present (1 year 2 months)

Enabled reliable execution of messaging campaigns from 1K to 100K+ leads by architecting batching, throughput management, rate limiting, and infrastructure scaling. Led an end-to-end Field Level Encryption (FLE) framework implementation and reduced Elasticsearch shard-management overhead by ~90%.

AWS Lambda Amazon EKS Kubernetes Field Level Encryption (FLE)Elasticsearch Kibana Rate Limits Event Driven Architecture

Software Engineer

LeadSquared

Jul 2024 - Mar 2025 (8 months)

Solely owned the AWS Lambda to Amazon EKS containerization initiative from architecture and proof-of-concept through load testing, deployment planning, and production rollout for 100M+ transactions/day. Reduced infrastructure costs by ~35% and improved production delivery reliability by ~40–50% by delivering Kibana and Amazon S3-based delivery transparency capabilities.

AWS Lambda Amazon EKS EKS Capacity Planning JMeter Kubernetes AutoScaling Kibana Amazon S3 Load Testing

Associate Software Engineer

LeadSquared

Jul 2022 - Jun 2024 (1 year 11 months)

Reduced platform costs through Redis adoption, Elasticsearch query optimization, index restructuring, and log cleanup. Built Kibana dashboards and monitoring workflows, and developed full-stack messaging capabilities using React.js and Node.js while provisioning AWS resources with AWS CDK.

Redis Elasticsearch Kibana React Node.Js AWS CDK DynamoDB SNS SQS S3 NodeJS

Software Engineering Intern

HighRadius & LeadSquared

Developed web application features and reusable UI components using React.js, JavaScript, and ExtJS. Contributed to enterprise product delivery through debugging, testing, REST API integration, and Agile workflows.

React JavaScript API Integration UI Components Debugging Testing Agile Web Application Development