Renj R
@renjr
I’m a Lead Frontend Engineer building scalable, high-performance web and AI-integrated systems.
IndiaWhat I'm looking for
I’m a results-driven Lead Frontend Engineer with 10 years of experience architecting and delivering scalable, high-performance web applications. My core strength is React.js, Redux, and microfrontend architecture, and I’ve also independently delivered full-stack solutions, including Golang microservices, database setup, and cloud deployments. I’m a hands-on early adopter of AI/LLM tooling, integrating AI automation workflows with an emphasis on practical, production-minded outcomes.
In my current role, I architected and delivered a production-ready Golang microservice end-to-end within a 2-week sprint and led a frontend team of 3 engineers to drive technical direction, quality gates, and mentoring. I’ve built reusable UI component libraries adopted across divisions, improved scalability by 50% through microfrontend design, and significantly reduced deployment times via CI/CD pipelines. I’m actively seeking a senior/lead position where I can drive engineering excellence and mentor high-performing teams while continuing to build AI-integrated, reliable products.
Experience
Work history, roles, and key accomplishments
Lead Software Engineer
Samsung R&D Institute
Nov 2021 - Present (4 years 7 months)
Architected and delivered a production-ready Golang microservice end-to-end in a 2-week sprint, demonstrating full-stack ownership within a frontend-focused team. Designed microfrontend architecture that increased scalability by 50% and led a 3-engineer team, improving development velocity by 30% through reusable UI components and code review mentorship.
Software Engineer - UI
The DataTeam
Jun 2019 - Nov 2021 (2 years 5 months)
Revamped core product interfaces using React and Redux, reducing project turnaround time by 40%. Optimized application performance to improve Core Web Vitals (LCP, FID, CLS), and integrated frontend apps with REST and GraphQL APIs deployed on AWS and Azure.
Full Stack Engineer
Kyvor Genomics Inc
Dec 2018 - May 2019 (5 months)
Built a full-stack biomedical search interface using React, Node.js, and Elasticsearch to improve cancer research discovery efficiency. Implemented REST APIs integrated with the React frontend for real-time data interactions and developed supporting data services using MongoDB.
Software Engineer
Infosys Ltd
Jun 2016 - Nov 2018 (2 years 5 months)
Delivered internal tools using React and Python, leading end-to-end development of multiple modules. Built a room/SPA management system using Oracle DB and gained foundational experience in automation testing with Selenium.
Education
Degrees, certifications, and relevant coursework
RMK College of Engineering and Technology
Bachelor of Engineering, Electronics and Communication Engineering
2012 - 2016
Grade: CGPA: 8.0 / 10
Earned a B.E. in Electronics and Communication Engineering at RMK College of Engineering and Technology from 2012 to 2016.
Tech stack
Software and tools used professionally
Availability
Location
IndiaAuthorized to work in
Skills
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