Case Studies Archive

Detailed technical case studies of production platforms engineered by Linearc co-founders.

FULLSTACK & SOCIAL IMPACTLead: Rishabh Sharma

KaushalAI — Vernacular-First Skilling & Certification Platform

KaushalAI is a self-initiated product built to solve skilling and certification access for India's informal workforce — workers who are often left out of upskilling platforms because everything is in English. Built and shipped as v1 during Ideas to Impact 2026, then taken into a full v2 rebuild.

1st place, Ideas to Impact 2026 — competing against 50+ teams from 14+ institutions, hosted by the Awadh Incubation Foundation (KMCLU). The win validated both the product thesis and the execution speed — a full working AI product built and pitched in a compressed timeframe.

React.jsNode.jsExpress.jsGemini 2.5 Flash

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AI INFRASTRUCTURE & CACHINGLead: Rishabh Sharma

Layerzero — Hybrid AI Document Summarization Platform

Layerzero is a full-stack, hybrid AI document summarization platform built and shipped as a college project (submitted under 'Academic Paper Summarizer'). It lets users summarize documents using a choice of AI models, with production-grade infrastructure behind it.

Cache hit response time cut from ~9 seconds to ~150ms — a ~98% latency reduction on repeated queries, turning a noticeably slow summarization flow into a near-instant one.

Node.jsExpress.js (ESM)Redis (Upstash)MongoDB

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ENTERPRISE AI PLATFORMLead: Ayush Soni & Rishabh Sharma

HireCore OS — AI-Powered Candidate Evaluation & Assessment Platform

HireCore OS is an open-standard, AI-powered evaluation operating system designed for software developers, candidates, and engineering teams. It bridges the gap between curriculum vitae parsing, domain-specific technical assessment, project-based oral examinations, and real-time performance analytics.

Engineered 6 institutional-grade candidate evaluation modules with sub-second feedback latency, Dockerized environment orchestration, and persistent MongoDB session analytics.

React 19Node.js v22Express.jsMongoDB

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