Full-Stack Developer · Product and Design Engineer · AI products end to end with React, Next.js, Node, FastAPI and AWS

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Rajveer Singh • Peerlist

An AI version of me that answers for my work while I'm away. It reads my site, replies in my voice with its sources, shows the real projects instead of describing them, checks a job description against what I've built, and moves around the site when you ask: ask it to make it night and let it rain, and it does.I built all of it on my own vendor-neutral engine: retrieval over the site (RAG), tool calling, generative UI streamed over server-sent events, guardrails, and evals that run against the real model every night and alert me when answers fall below the bar.Try it: <a target="_blank" rel="noopener noreferrer nofollow ugc" class="break-all link-break text-gray-500 hover:underline" href="https://rajveers.com">https://rajveers.com</a> (the Ask tab, or press "a")Write-up: <a target="_blank" rel="noopener noreferrer nofollow ugc" class="break-all link-break text-gray-500 hover:underline" href="https://rajveers.com/projects/ai-me">https://rajveers.com/projects/ai-me</a>

The AI me

Anonymous chat rooms with peer-to-peer voice calls, where the server introduces two browsers and gets out of the way. One <a target="_blank" rel="noopener noreferrer nofollow ugc" class="break-all link-break text-gray-500 hover:underline" href="http://Socket.IO">Socket.IO</a> server handles chat and signalling, relays the WebRTC handshake, and never touches the audio. Early network candidates wait in a queue, so a fast network never races the handshake.It was the take-home for the job I have now at IABTM: voice was beyond the brief, and it went live in two days, twelve hours before the deadline.Write-up: <a target="_blank" rel="noopener noreferrer nofollow ugc" class="break-all link-break text-gray-500 hover:underline" href="https://rajveers.com/projects/kernel">https://rajveers.com/projects/kernel</a>Code: <a target="_blank" rel="noopener noreferrer nofollow ugc" class="break-all link-break text-gray-500 hover:underline" href="https://github.com/rajveeerr/Kernel">https://github.com/rajveeerr/Kernel</a>Live: <a target="_blank" rel="noopener noreferrer nofollow ugc" class="break-all link-break text-gray-500 hover:underline" href="https://kernelchat.vercel.app">https://kernelchat.vercel.app</a>

Kernel

A harassment shield for LinkedIn DMs. A Chrome extension (Plasmo, Manifest V3) hides abusive messages behind a warning, flags a sender once five people have hidden them, and turns their messages into a PDF evidence report. Every message is screened cheapest first: a word list, verdicts already cached, and only then the model.We built it as a team of four, and it took first place at HackWIE 3.0 and Code Kshetra 2.0.What I built: the backend (Express, MongoDB, Redis, Gemini, Puppeteer). The API; moderation moved into its own service with failover across deployments, so a spent quota never stops a check; a verdict cache so no message is paid for twice; and evidence reports that survive bad model output. In the extension, the popup and the login hand-off.Write-up: <a target="_blank" rel="noopener noreferrer nofollow ugc" class="break-all link-break text-gray-500 hover:underline" href="https://rajveers.com/projects/safire">https://rajveers.com/projects/safire</a>Code: <a target="_blank" rel="noopener noreferrer nofollow ugc" class="break-all link-break text-gray-500 hover:underline" href="https://github.com/rajveeerr/Safire">https://github.com/rajveeerr/Safire</a>Live: <a target="_blank" rel="noopener noreferrer nofollow ugc" class="break-all link-break text-gray-500 hover:underline" href="https://safire-five.vercel.app">https://safire-five.vercel.app</a>

Safire

An agentic personalisation engine for commerce that learns why a shopper buys, not just what. We built it as a team of four at Cognizant's Technoverse 2.0, where it made the finals: top 24 of 5,600+ teams.The browser streams consented events; agents on AWS Bedrock turn them into facts about the shopper; Titan embeddings go into OpenSearch Serverless; and a recommender ranks those facts, drafts an offer and checks every claim against its sources before it shows a single product.What I built: the storefront (React, TypeScript), the event SDK that loses nothing to a reload or a closed tab, consent checked on every event in the browser and again on the server, a noise gate that keeps trivia away from the model, the move to OpenSearch Serverless, and a relevance cutoff so a search for "towel" stopped returning 48 shirts.Write-up: <a target="_blank" rel="noopener noreferrer nofollow ugc" class="break-all link-break text-gray-500 hover:underline" href="https://rajveers.com/projects/hyperpersona">https://rajveers.com/projects/hyperpersona</a>Code: <a target="_blank" rel="noopener noreferrer nofollow ugc" class="break-all link-break text-gray-500 hover:underline" href="https://github.com/rajveeerr/Hyperpersona">https://github.com/rajveeerr/Hyperpersona</a>Live: <a target="_blank" rel="noopener noreferrer nofollow ugc" class="break-all link-break text-gray-500 hover:underline" href="https://hyperpersona-web.vercel.app">https://hyperpersona-web.vercel.app</a>

HyperPersona

SDE Intern @ Code Inbound LLP • Next.js • Typescript • MERN/PERN • React-Native • DSA (Java) • Exploring DevOps • MSIT'2

Preparing for consulting case interviews, product management rounds, finance technicals, or marketing strategy roles often requires practice beyond just reading frameworks. Finding mock interview partners at the right level and availability, or assembling a dependable team for a case competition, can be time-consuming and inefficient, relying heavily on personal networks or scattered online groups.Our Solution: Modulus - Connect &amp; Prepare EffectivelyModulus provides a centralized solution for collaborative preparation:<ol><li>Find Mock Interview Partners (Peer Mocks):&nbsp;Easily request a practice session by specifying your target domain (Consulting, PM, Finance, etc.) and experience level. Our system matches you with a compatible peer for a structured mock interview, followed by feedback exchange.</li><li>Build Case Competition Teams (Find Your Peer):&nbsp;Post openings for your case competition team, detailing the skills you need. Alternatively, browse listings from other teams seeking members. Connect directly with potential teammates within the platform.</li><li>Practice with Real Questions:&nbsp;Access our growing library of actual interview questions asked at top firms for non-tech roles. Filter by company, industry, or type to focus your practice.</li><li>Get Expert Guidance (1:1 Mentorship):&nbsp;Book sessions with vetted mentors from leading companies for personalized advice, resume feedback, or advanced mock interviews (includes a free starting credit).</li></ol>Why Modulus?Built by a team familiar with the challenges of non-tech recruitment (with backgrounds from Bain, Goldman Sachs, Zomato, etc.), Modulus aims to:<ul><li>Save You Time:&nbsp;Quickly find relevant practice partners and teammates.</li><li>Improve Your Skills:&nbsp;Practice effectively and receive structured feedback.</li><li>Expand Your Network:&nbsp;Connect with ambitious peers beyond your immediate circle.</li><li>Increase Accessibility:&nbsp;Provide core peer-connection tools for free.</li></ul>Get Started &amp; Let Us Know What You Think:We believe collaborative practice is key to success.<ul><li>Explore Modulus:&nbsp;<a target="_blank" rel="noopener noreferrer" class="break-all link-break text-gray-500 hover:underline" href="http://yourwebsite.com">trymodulus.com</a>&nbsp;</li></ul>

Modulus

10xAnswers is a sleek, fully customizable, and draggable chatbot component that seamlessly fits into your website.Features - Plug-and-Play: Install it, configure prompts, and you’re live. That’s it. - Look Like a Pro: Customize everything — chat window, bot icon, colors, and style. - Rich Responses: Markdown support lets your bot display code blocks, tables, and beautiful text. - Flexible Backend: Use your backend or our hosted service (we’ve got your back). - Internet-Ready: Built-in connectivity checks keep your users informed. - Smooth User Experience: It’s draggable! Users can move the chat window wherever they like. - Smart Input: Editable questions and easy-to-copy responses make conversations effortless. One Component, Endless Possibilities Perfect for support, FAQs, or any custom AI experience you can dream up. Just drop it into your site and watch the magic happen. See It Live: <a target="_blank" rel="noopener noreferrer nofollow" class="text-green-500 rich-link break-all link-break" href="https://10x-answers.vercel.app">https://10x-answers.vercel.app</a>Install Instantly: <a target="_blank" rel="noopener noreferrer nofollow" class="text-green-500 rich-link break-all link-break" href="https://www.npmjs.com/package/10xanswers">https://www.npmjs.com/package/10xanswers</a>Stop losing visitors. Start engaging them. Add 10xAnswers to your website today and give your users the answers they deserve.