Sijo Sam
Technical Lead & Full-Stack Engineer
Kerala, India
Professional Summary
Technical Lead and Full-Stack Engineer with 8+ years building and modernising enterprise web platforms using Node.js, React, React Native, TypeScript, GraphQL, and cloud infrastructure. I've re-architected large legacy codebases, shipped performance improvements of 30%+ across production systems, and owned complex API and backend integrations end to end. I also lead teams when the work calls for it, but the code is where I live.
Technologies & Skills
Work Experience
SaaS Products · Kochi, Kerala
- Led migration of a 100k+ line Angular 13 codebase to React 19, covering architecture decisions, component decomposition, and state management patterns using Zustand
- Drove HLD and LLD for new platform capabilities across the SaaS enterprise product, covering API integrations, deployment workflows, and shared frontend infrastructure
- Built a reusable analytics and reporting dashboard component library adopted across multiple product verticals, reducing per-feature UI build time significantly
- Introduced and standardised AI-assisted development using Claude Code and Windsurf — ran hands-on workshops, set usage guidelines, and improved delivery throughput by 10%
- Conducted structured code reviews and knowledge-sharing sessions; directly mentored three developers into independent ownership of complex feature areas
- Leading a team migrating features from an acquired platform (Pimcore, PHP, Vue) into the core product, working across a mixed stack including Blazor and .NET to integrate and re-platform existing functionality
Stack: React 19, Node.js, Python, Zustand, MUI, Docker, GCP, AWS, Terraform, Pimcore, PHP, Vue, Blazor, .NET, Spring Boot
Digital Media & Streaming · London, UK (remote)
- Modernised frontend architecture across large-scale video streaming platforms, migrating legacy React patterns to functional components and redesigning rendering pipelines that cut load times by 30% and reduced LCP significantly
- Owned technical SEO end to end: migrated to an SSR rendering platform, restructured meta and content layers, and grew organic search rankings by 50%
- Designed and led API integration work connecting streaming clients to backend content delivery and licensing services via GraphQL and REST
- Fast-tracked to Technical Lead after 18 months; led distributed international teams across time zones, ran structured 1:1s, and reduced code error rates by 35%
- Shipped across web, mobile, and connected TV surfaces using React, React Native, Next.js, GraphQL, Redux Toolkit, and Astro
Stack: React, React Native, Next.js, GraphQL, Node.js, Tailwind, Redux Toolkit, AWS, Netlify, Astro
IDE Products · Bangalore, India
- Architected the browser-based IDE for HyperBlox's IoT and 5G platform, including compiler workflow integration, Lua runtime bridging, and distributed execution support, cutting application development time by 30%
- Collaborated directly with the CTO on compiler design and runtime integration for enterprise-scale deployments; built the abstractions that let product teams ship features without touching low-level platform code
- Designed reusable frontend and backend abstractions that reduced duplicated engineering effort; served as Scrum Master and Project Owner for core platform delivery
Stack: React, Node.js, MUI, Redux, Docker, Lua, ShellScript, Kubernetes, MongoDB
SaaS Products · Kochi, India
- Built full-stack SaaS products across healthcare, retail, and travel, owning both frontend and backend delivery for business-critical features that improved client operational efficiency by 20%
- Accelerated product delivery for multiple startup clients, covering web and mobile with React, React Native, Node.js, and Next.js
Stack: React, React Native, Node.js, Next.js, MUI, SCSS, Redux, AWS, GCP, Firebase, MongoDB
Education
Bachelor of Technology in Computer Science
University of Cochin, India
Certifications
- Certified Scrum Master (CSM) — Scrum Alliance
- Certified Secure Web Application Engineer (CSWAE) — Mile2