Nikhil Rai

Software Engineer

New Delhi, Delhi, India5 yrs 8 mos experience

Most Likely To Switch

Key Highlights

Built scalable systems serving over 10 million users.
Led a team to improve response times by 75%.
Achieved 75% code reuse across platforms.

Stackforce AI infers this person is a Full-Stack Developer with expertise in E-commerce and Fintech solutions.

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Skills

Core Skills

JavaReactMicroservicesCloud ComputingJavascript

Other Skills

AJAXAPI DevelopmentAWSAerospikeAlgorithmsAmazon Web Services (AWS)Back-End Web DevelopmentBig DataBootstrapCC++CSSCascading Style Sheets (CSS)Code ReviewComputer Networking

About

I’m a Full-Stack Developer with 2.5+ years of experience building scalable backend systems and modern, high-performance frontend applications serving over 10 million users. At Limeroad, I work end-to-end — designing robust microservices and event-driven architectures using Java, Spring Boot, Kafka, and AWS, while also building responsive, SEO-friendly web applications using React, Next.js, and TypeScript. I’ve migrated legacy stacks, built universal frontend architectures, and delivered mission-critical systems like semantic search engines, payment gateways, real-time bidding platforms, and admin dashboards. I thrive on solving challenging problems — whether that’s optimizing Core Web Vitals, designing distributed systems, or shipping features that drive engagement and revenue. I love collaborating across teams and delivering reliable software that users love. I’m currently looking for exciting opportunities in backend, frontend or full-stack engineering where I can tackle impactful problems and keep growing as a builder and teammate.

Experience

5 yrs 8 mos

Total Experience

2 yrs 10 mos

Average Tenure

3 yrs

Current Experience

Limeroad

3 roles

SDE 2

Promoted

Aug 2024 – Present · 1 yr 10 mos · Gurugram, Haryana, India

Led a 4 engineer team to build a scalable semantic search & recommendation engine for 5M+ products at 50K+ RPM — migrated legacy Solr to distributed cloud with Varnish caching and Kafka-based real-time updates, improving response times by 75%.
Designed and maintained payment-gateway agnostic services in Spring Boot, integrating 5+ providers with circuit breakers, SSE, and failover flows — improved checkout conversions by 8% and retention by 15%.
Spearheaded a real-time bidding system for 5K+ vendors, integrated with search and ads pipelines — increased revenue by 12% and vendor engagement by 35%.
Led universal frontend migration of key modules to React/TypeScript with Next.js, achieving 75% cross-platform code reuse with React Native, speeding up feature rollouts by 3x.
Implemented SSR, Core Web Vitals optimizations (lazy loading, shimmer effects, critical CSS inlining) — improved LCP by 1.5s and FCP by 800ms.
Orchestrated containerized deployments using Docker, AWS ECR, and CI/CD pipelines, enabling auto-scaling and faster rollouts.

JavaSpring BootKafkaAWSReactNext.js+2

SDE 1

Jun 2023 – Aug 2024 · 1 yr 2 mos · Gurugram, Haryana, India

SDE Intern

Nov 2022 – Jun 2023 · 7 mos · Gurugram, Haryana, India

National service scheme, dtu

3 roles

Council Head

Aug 2022 – Jun 2023 · 10 mos

Executive

Aug 2021 – Jul 2022 · 11 mos

Volunteer

Aug 2020 – Jul 2021 · 11 mos

Retainiq

Software Development Intern

Jul 2021 – Jan 2022 · 6 mos · Bengaluru, Karnataka, India

Developed admin dashboards, authentication systems, and a live chat interface using HTML, CSS, JavaScript, React, Next.js, and Webpack.
Built secure RESTful APIs using Node.js, JWT and integrated them seamlessly with the frontend.
Deployed and maintained production hosting on AWS cloud services.

HTMLCSSJavaScriptReactNext.js