Headline

Principal UI Engineer | Javascript, react, Next.js, Node.js expert | Architecting Scalable APIs & High-Performance Web Apps

About

I am a Principal UI Engineer specialising in building high-performance web applications and scalable system architectures. Over my career, I have focused on bridging the gap between pixel-perfect user experiences and robust backend systems. My core expertise lies in maximising frontend performance, optimising core web vitals, and designing highly available APIs that scale seamlessly under heavy traffic. At Shopalyst, I lead frontend engineering efforts, where my primary focus has been architecting a highly customisable landing page platform integrated with a companion no-code page builder. By optimising the architecture for fast load times and ultra-low latency, the platform significantly improved user engagement. Beyond this core platform, I enjoy mentoring engineering teams, establishing clean code practices, and aligning technical roadmaps with business goals. Additional Portfolio Highlights: AdTech: Engineered high-scale systems for delivering rich media ads via HTML5 ad tags and VAST protocols, optimising for strict latency and cross-platform compatibility. Creative Studio: Designed a companion creative builder meant to create shop-able creatives for e-commerce, which combines product visuals, product meta info & contextual backgrounds. End-to-End MarTech SaaS: Developed the UI architecture for a comprehensive digital marketing platform managing the full media lifecycle—from audience identification to campaign deployment and analytics reporting. Core Technical Expertise: Frontend: UI Architecture, React, Next.js, JavaScript (ES6+), HTML5, CSS3, Performance Optimisation API: Node.js, RESTful APIs, System Design

Location

Bengaluru

AI stack

aistudio

claude code

cursor

notebooklm

Replicate

Vercel AI SDK

Work experience

Principal Engineer at Shopalyst, Aug 2023 - Present · 3 yrs 2 mos

Engineering Manager at Shopalyst, Jun 2019 - Present · 7 yrs 4 mos

Software Engineer at Shopalyst, Aug 2016 - Jun 2019 · 2 yrs 11 mos, Bengaluru, Karnataka, India

IT Analyst at Williams Lea, Apr 2015 - Jul 2016 · 1 yr 4 mos, Kochi, Kerala, India

Senior Software Engineer at Williams Lea, Sep 2013 - Mar 2015 · 1 yr 7 mos, Kochi, Kerala, India

Senior Systems Engineer at Infosys, Jul 2009 - Aug 2013 · 4 yrs 2 mos, Thiruvananthapuram Taluk, India, My work in Infosys involved UI development in HTML/ CSS/ Javascript and Adobe Flex. Also have experience in Java/ J2EE.

Education

Bachelor's degree, Computer Science, Adi Sankara Institute of Science and Technology

Public links

github: https://github.com/sreekanthjnayar