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SankalpRaiGambhir
Sankalp Rai GambhirFullstack & AI Engineer
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Selected Work

Explore my portfolio of projects showcasing expertise in full-stack development, cloud architecture, and scalable system design.

5Projects
Car rental app dashboard showing real-time search and booking availability

Preventing Rental Car Double-Bookings with Serializable Transactions & Geo-Spatial Search

Every double-booking costs a refund, a support ticket, and usually the customer. This handles peak-hour demand without a single conflicting reservation.
Sub-100ms real-time geo searchConcurrency-safe bookings6 microservices based backend
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Resume Diff AI dashboard showing AI-generated resume-to-job-description match scoring

Automating Resume Screening with Reliable Structured Outputs from LLMs

Screening a few hundred resumes eats days of recruiter time and still ends in gut calls. This scores every candidate in seconds, consistently enough to defend to a hiring manager.
schema-constrained responsesserverless architecture< 800ms cold start
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Real-time multiplayer Tic-Tac-Toe game interface with live match state

Eliminating Race Conditions in Real-Time Multiplayer Games with Atomic Redis Lua

Players don't come back to a game that glitches mid-match. This keeps 1,000+ live matches in sync, so nobody loses to a bug instead of an opponent.
Go WebSockets + RedisAtomic state validations in LuaSupports 1K+ concurrent games
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Deployment platform dashboard showing live build logs and CloudFront distribution status

Automating Frontend Deployments from Git to a Global CDN with Event-Driven AWS

Hand-rolled deploys burn an engineer's afternoon and break on release day. Push to Git and the site is live worldwide in minutes, with logs showing exactly what shipped.
Containerized Lambda buildsCloudFront delivery + SPA routingSQS orchestration
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Document management RAG chat interface showing semantic search results with source attribution

Scaling AI Q&A Over Documents at Low Cost with Cached Embeddings & Vector Search

The answer is in the documents somewhere — finding it costs hours. Ask in plain English, get a sourced answer in seconds, on infrastructure that costs almost nothing to run.
Semantic retrievalLow-cost infrastructureStreamed AI Responses with SSE
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About

Sankalp Rai Gambhir

Fullstack & AI engineer helping growing teams ship production AI, backend systems, and full-stack products.

Worked with startups & enterprises

Contact

career.sankalp21@gmail.com

Remote-first

UK / EU / US overlap

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Ways I Work

Scoped Build

A defined feature or platform, delivered from architecture through deployment.

Workstream Ownership

Senior-level ownership inside an existing team and delivery process.

Technical Spike / MVP

Validate the architecture and de-risk hard decisions before scaling.

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