Open to opportunities

Subash Sajan

@subashsajan

Message

Full-stack engineer shipping end-to-end product features with AI-ready modern web stacks.

India

Message

What I'm looking for

I’m looking for a team where I can own features end-to-end—architecture through deployment—using modern React/Next.js, APIs, and AWS. I want to ship AI features where LLMs support real workflows with human-in-the-loop controls.

I’m a full-stack engineer who builds and ships product features end-to-end across modern web stacks—front to back to deployment. I focus on owning work from architecture and backend systems to frontend experiences, with AWS infrastructure in the loop.

In my recent role, I delivered an end-to-end Canvas LMS integration on a Next.js + FastAPI + PostgreSQL stack. I also built an AI Evaluator with a full instructor-review UI and a failure-retry queue, turning manual grading into minutes while keeping humans in control.

I’m especially drawn to agentic, production-minded AI. I’ve worked on retrieval and review layers behind an agentic teaching assistant using LangGraph + Claude—bringing PostgreSQL + pgvector embedding search, reranking, and React surfaces for diffs and approval gates before changes are saved.

I also freelance to support multiple teams and use cases, engineering full-stack apps with React, Node.js, and Firebase. I care deeply about scalable architecture, secure authentication, reliable REST APIs, and clean admin tooling that helps non-technical users manage content independently.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Sentellent

Feb 2026 - Present (5 months)

Owned end-to-end Canvas LMS integration on a Next.js + FastAPI + PostgreSQL stack, including course versioning, IMSCC import/export, gradebook sync, and bulk submissions. Built an AI Evaluator with instructor-review UI and an agentic workflow (LangGraph + Claude) using PostgreSQL + pgvector and shipped features via AWS ECS CI/CD.

Next.js React fastAPI PostgreSQL Pgvector LangGraph Anthropic: Claude AI Evaluator AI Agents RAG Frontend Diffs Approval Gates AWS ECS CI CD GitHub Actions

Current

Freelance Software Developer

Current

Freelance

Apr 2025 - Present (1 year 3 months)

Engineered full-stack applications for 5+ clients using React, Node.js, and Firebase, focusing on scalable architecture, secure authentication, and optimized data flows. Designed REST API backends with role-based access control and validation pipelines, and built admin dashboards with modular components and clean state management.