https://satyamkumarsingh.com Satyam Kumar Singh is an AI engineer and full-stack developer, a second-year Computer Science (AI) student at Vedam School of Technology, Pune, who builds multi-agent and RAG systems, ships the full stack around them (Java, Node, React, React Native), and evaluates LLMs for Deccan AI Experts. en https://satyamkumarsingh.com/writing/1346-notification-jobshttps://satyamkumarsingh.com/writing/1346-notification-jobsTue, 15 Sep 2026 00:00:00 GMTCommit first, publish second, sweep for the gap. The decisions behind Notify's 98.1%, and the 25 jobs that failed anyway. https://satyamkumarsingh.com/writing/rag-for-my-own-portfoliohttps://satyamkumarsingh.com/writing/rag-for-my-own-portfolioTue, 15 Sep 2026 00:00:00 GMT125 chunks, one threshold, a prompt that is allowed to say no, and a benchmark anyone can inspect. https://satyamkumarsingh.com/writing/webhook-refund-handlerhttps://satyamkumarsingh.com/writing/webhook-refund-handlerTue, 15 Sep 2026 00:00:00 GMTA one-line guard, a whole-flow outage, and the four rules for payment webhooks I follow now. https://satyamkumarsingh.com/contact#ledgerhttps://satyamkumarsingh.com/contact#ledgerTue, 01 Sep 2026 00:00:00 GMTThe contact form posts events to Notify as tenant portfolio, with its own API key, rules and templates. A tenant-scoped metrics endpoint (totals, per channel, per day, median ingest to delivered) feeds a live reliability ledger, and the first message was delivered on both channels. Learned: A second tenant found the gaps a single tenant never would: global sender name, a path allowlist in the auth filter. https://satyamkumarsingh.com/work/humraahhttps://satyamkumarsingh.com/work/humraahTue, 01 Sep 2026 00:00:00 GMTBackend, PWA and the React Native app, from a failed audit on 30 June to store-ready. In-app purchases on both stores, UGC compliance, reviewer access. Learned: One backend, three clients: keep the policy in one place. https://satyamkumarsingh.com/work/oiltracehttps://satyamkumarsingh.com/work/oiltraceSat, 01 Aug 2026 00:00:00 GMTU-Net detection of oil slicks on Sentinel-1 radar, trained on about 2,500 scenes with 685 look-alike traps. I built the detection service, the dashboard and the report. Learned: Put the traps in the validation set or the number is a lie. https://satyamkumarsingh.com/work#changeloghttps://satyamkumarsingh.com/work#changelogMon, 01 Jun 2026 00:00:00 GMTFull-stack intern at Third Shade; selected to Deccan AI's expert network to evaluate terminal and agentic workflows for LLM training. Learned: Evaluating models changes how you build with them. https://satyamkumarsingh.com/work/notifyhttps://satyamkumarsingh.com/work/notifyFri, 01 May 2026 00:00:00 GMTA multi-tenant notification service in Java and RabbitMQ, designed and built alone, serving every CampusCritique notification since. Learned: Commit before you publish, then sweep for the gap. https://satyamkumarsingh.com/work/kisanmindhttps://satyamkumarsingh.com/work/kisanmindWed, 01 Apr 2026 00:00:00 GMTFive-node LangGraph advisor for farmers with Hindi and Marathi voice. I built the AI service and wired the frontend. Learned: Every voice layer needs a fallback. https://satyamkumarsingh.com/work/campuscritiquehttps://satyamkumarsingh.com/work/campuscritiqueWed, 01 Apr 2026 00:00:00 GMTTrust-first college discovery for India's new-age tech programs. I own payments, notifications and admissions automation. Learned: Ship the boring reliability first; the UI can wait a week. https://satyamkumarsingh.com/work/askmynoteshttps://satyamkumarsingh.com/work/askmynotesSun, 01 Mar 2026 00:00:00 GMTAskMyNotes, a RAG study copilot. Co-built the retrieval with Ved. Eight hours, about fifty teams, a rule change halfway and a connectivity failure near submission. Learned: Under pressure, split the work by risk, not by role. https://satyamkumarsingh.com/work#changeloghttps://satyamkumarsingh.com/work#changelogWed, 01 Oct 2025 00:00:00 GMTA cultural-club site in plain HTML, CSS and JavaScript, two months into college. Learned: Ship something. Then ship something harder.