KANKAN DAS

Frontend Engineer

Noida, Uttar Pradesh, India11 yrs 9 mos experience

Most Likely To SwitchHighly Stable

Key Highlights

Led migration of 29 web platforms to Next.js.
Increased Google DFP ad revenue by 18%.
Architected AI automation platform reducing content creation time.

Stackforce AI infers this person is a SaaS-focused Full-Stack Engineer with expertise in performance optimization and automation.

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Skills

Core Skills

Next.jsNode.jsJavascriptReact.jsAngularjs

Other Skills

Atomic DesignCore Web VitalsNGINXRedisMongoDBDockerKubernetesAWSGoogle DFPA/B TestingGmail WebhooksAmazon PA APIMean StackJava SpringBootHibernate

About

With over a decade of experience, most recently as Technical Lead at Times Internet, I have honed expertise in JavaScript, JavaScriptMVC, and MERN stack technologies. My work focuses on crafting full-stack solutions to deliver impactful digital products, collaborating with teams to enhance user experiences and system performance. As a professional transitioning from Times Internet, I bring a commitment to driving innovation, fostering collaboration, and delivering robust technical solutions to advance organizational goals. My approach is rooted in secure coding practices and leveraging modern technologies to solve complex challenges efficiently and effectively.

Experience

11 yrs 9 mos

Total Experience

5 yrs 10 mos

Average Tenure

9 yrs 10 mos

Current Experience

Times internet

2 roles

Frontend Technical Lead

Promoted

Mar 2020 – Present · 6 yrs 2 mos · Noida · On-site

Performance & Platform Architecture
Led migration of 29 web platforms to Next.js, implementing Atomic Design architecture; reduced INP by 42% (0.29s → 0.17s).
Improved Core Web Vitals: CLS (1.2 → 0.04) and LCP (2.9s → 2s), driving ~10% increase in user retention.
Reduced HTML payload by ~52KB via critical CSS extraction and static optimization.
Upgraded Webpack from v2 to v5 across platforms within 7 days, modernizing build infrastructure.
Revenue & Monetization Engineering
Increased Google DFP ad revenue performance by 18% through lightweight pre-render JS architecture.
Implemented Sticky ATF & AMP interstitial ads contributing ~40% AMP revenue share.
Boosted video request volume by 40% via performance-optimized rendering strategy.
Built a data-driven A/B Testing Engine for headline optimization, improving CTR by 10%.
Infrastructure & Scalability
Reduced server hits by 75–80% using NGINX reverse proxy caching with consistent hashing.
Architect scalable backend ecosystems using Node.js, Redis, MongoDB, Docker, Kubernetes, and AWS.
Improved platform resilience for high-traffic events (IPL, Elections) with optimized CDN strategies (Akamai) and using Redis caching layers (Memcached, Redis) with ~90% hit rates, cutting DB load by 60%.
AI & Automation Systems
Architected event-driven GenAI automation platform integrating Gmail Webhooks, Amazon PA API, Telegram, and CMS.
Reduced Amazon product research & content creation time from 2–3 hours to ~25 minutes using Node.js + LLM (LangChain) pipelines.
Process ~2K+ automated events monthly for AI-assisted publishing workflows.
Led 6-7 member team through structured sprint planning, stakeholder alignment, and phased release execution with reduced post-QC defects.

Next.jsAtomic DesignCore Web VitalsNGINXNode.jsRedis+4

Senior Frontend Engineer

Jul 2016 – Mar 2020 · 3 yrs 8 mos · Noida · On-site

Mean StackReact.js

Sapient global markets

Interactive Developer

Jul 2014 – Jun 2016 · 1 yr 11 mos · NCR - National Capital Region

Developed financial trading web applications for Goldman Sachs using AngularJS and Java SpringBoot/Hibernate, enhancing user experience and performance
Built modular UI components integrated with REST services, improving code reusability and maintainability

AngularJSJava SpringBootHibernate