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Rajat Sehgal

@rajatsehgal

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Full Stack Engineer skilled in scalable systems, cloud architecture, and cost-efficient solutions.

India

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What I'm looking for

I am looking for a role that fosters innovation, collaboration, and growth opportunities.

I am a Full Stack Engineer with 6+ years of experience in designing and building scalable, high-performance applications from scratch to production. My expertise lies in cloud architecture, backend optimization, and cost-effective solutions using AWS, Node.js, TypeScript, PostgreSQL, and React.

Currently, at ATMA, I have architected a high-performance microservices queue system, ensuring seamless data synchronization for millions of users. I have also optimized cloud costs by $145K/year by replacing third-party APIs with in-house solutions and implemented Redis caching, boosting API performance 10x. My experience spans cloud-native development, infrastructure optimization, and API-driven architectures.

I am passionate about solving complex engineering challenges, improving developer experience, and building scalable, efficient, and maintainable systems. Always eager to learn and adopt new technologies, I thrive in fast-paced, innovation-driven environments where ownership, collaboration, and technical excellence are valued.

Experience

Work history, roles, and key accomplishments

Current

Backend Engineer

Current

ATMA

Jul 2022 - Present (2 years 10 months)

As a Backend Engineer at ATMA, I delivered significant contributions by managing JIRA tasks and GitHub pull requests. I built a scalable notification system using AWS services, designed a microservices queue system, and replaced APIs to achieve substantial cost savings. My role involved optimizing API performance and automating workflows, enhancing overall efficiency.

Redis Microservices API Development Jira GitHub Notion Serverless Architecture

Full Stack Engineer

FARMFETCH

Oct 2021 - Jul 2022 (9 months)

At FARMFETCH, I led a team to develop a scalable platform using React and Node.js. I optimized NestJS APIs for better performance and created a dynamic reporting system that significantly reduced reporting time. My contributions improved data flow and overall application efficiency.

React Node NestJS Team Leadership Performance Optimization Reporting Systems Redux

Full Stack Engineer

ASTS Technology

May 2020 - Oct 2021 (1 year 5 months)

In my role at ASTS Technology, I developed a user-centric platform that streamlined student progress management. I automated tracking processes, built a reporting tool, and created a reusable component library, significantly enhancing productivity and efficiency.

React Automation Reporting Tools Component Libraries User Centric Design Process Optimization Team Leadership

Software Engineer

Lumiq.ai

Jun 2018 - Apr 2020 (1 year 10 months)

As a Software Engineer at Lumiq.ai, I designed and optimized API endpoints for loan risk calculations and improved data processing accuracy. I developed a web application for cognitive receipt recognition and implemented a blockchain-powered KYC encryption system.