Sijo Sam

SaaS Products Team · Kochi, Kerala

• Leading platform architecture and system integration initiatives across multiple SaaS products, managing a distributed team of engineers spanning frontend, backend, and cloud workflows
• Drive HLD and LLD discussions for new platform capabilities, integrations, deployment workflows, and shared engineering infrastructure
• Designed and executed phased modernisation of a 100k+ line enterprise monolith using a strangler-pattern architecture, enabling zero-downtime migration across 3 product teams
• Established engineering standards, code review workflows, and knowledge-sharing practices that improved delivery quality and reduced onboarding friction
• Championed AI-assisted engineering workflows using Claude Code and Windsurf, improving developer productivity and reducing repetitive implementation effort

Technologies: React, Vue, Node.js, Python, Docker, Terraform, AWS, GCP, TanStack, Zustand, MUI

Digital Media & Streaming Products · Remote (London, UK)

• Led architecture modernisation initiatives across frontend platforms, API integrations, rendering pipelines, and deployment workflows for large-scale streaming applications
• Improved application performance, rendering efficiency, and platform scalability, reducing load times by 30% and increasing frontend performance by 25%
• Led distributed engineering teams across multiple time zones and collaborated with product, QA, and platform teams on cross-functional delivery
• Mentored engineers through code reviews, technical guidance, and architectural discussions, improving delivery quality and reducing defects
• Improved search visibility by 50% through technical SEO initiatives, rendering optimisations, and infrastructure-level content delivery improvements

Technologies: React, React Native, GraphQL, Node.js, Next.js, Tailwind CSS, Redux, AWS, Astro, Netlify

IDE Products Team · Bangalore, India

• Architected a web-based IDE platform for IoT and 5G workflows, reducing application development time by 30%
• Collaborated with the CTO on compiler workflows, runtime integrations, and distributed platform capabilities for enterprise-scale deployments
• Designed reusable frontend and backend abstractions that accelerated feature delivery and reduced duplicated engineering effort
• Served as Project Owner and Scrum Master, improving sprint execution, delivery visibility, and cross-functional coordination

Technologies: React, Node.js, Docker, Kubernetes, MongoDB, Lua, Shell Script, Redux, MUI

SaaS Products Team · Kochi, India

• Built scalable SaaS platforms across healthcare, retail, and travel domains spanning frontend applications, backend services, and cloud infrastructure
• Designed business-critical systems that improved operational efficiency, reduced manual workflows, and enabled automation across multiple client platforms
• Developed reusable engineering foundations and shared application modules that accelerated delivery across startup and enterprise projects
• Worked closely with stakeholders to translate product requirements into scalable technical implementations and deployment-ready systems

Technologies: React, React Native, Node.js, Next.js, MongoDB, AWS, GCP, Firebase, Redux, SCSS

• Built an open-source security toolkit for production LLM systems focused on prompt injection defence, trust-boundary enforcement, and secure tool execution
• Designed hybrid detection pipelines combining rule-based filtering and semantic classification across OpenAI, Anthropic, and Ollama integrations
• Implemented streaming-aware security workflows, telemetry hooks, and extensible adapters for real-time AI applications

Technologies: TypeScript, AI Security, Prompt Injection Detection, OpenAI, Anthropic, Ollama

• Built an interactive platform for simulating prompt injection attacks and AI tool misuse scenarios
• Implemented RBAC-based execution controls, context isolation, and execution trace inspection for security-focused AI workflows
• Designed training scenarios covering privilege escalation, data exfiltration, and unsafe tool execution patterns

Technologies: RBAC, Tool Execution Controls, Prompt Security, Trace Inspection, Input Validation

Technical writing focused on architecture, engineering trade-offs, frontend performance, scalable systems, and practical software engineering patterns.