Software Engineer | Python | TypeScript | React | Node.js

Abheet Singh Isher • Peerlist

Single-page portfolio covering my experience and eight projects (Zeno, Weft, Vantage, Glass, Helm, HealthFlow, Textify, ShieldAI). Three.js glyph animation with GSAP ScrollTrigger transitions and a reduced-motion fallback; a client-side portfolio assistant that answers only from cited facts (TF-IDF retrieval), so questions never leave the browser; zero-dependency Node.js static server with security headers. Deployed on Fly.io. Code: github.com/abheet19/Portfolio

Portfolio

Runs ML model evaluations on encrypted data using partially homomorphic (Paillier) encryption, so predictions are computed without exposing the raw inputs. Deployed on Fly.io. Code: github.com/abheet19/ShieldAI

ShieldAI

RAG-powered document summarizer with grounded question answering: upload documents, get summaries and ask questions answered with citations to the source text (Index &gt; Retrieve &gt; Answer). Python backend, deployed on Fly.io. Code: github.com/abheet19/Textify

Textify

Full-stack TypeScript web application that automates medical check-up reports, with a real-time WebSocket connection. Deployed on Fly.io. Code: github.com/abheet19/HealthFlow

HealthFlow

Ops and observability console for my deployed projects. A Node.js/Express server probes each live service server-side, measures real latency and keeps a rolling window, so uptime, p50/p95 latency and sparklines come from actual measurements; metrics not yet instrumented are shown as clearly labelled samples, never fake numbers. Glass design-system UI with a fleet service map and a read-only MCP manifest. Deployed on Fly.io. Code: github.com/abheet19/Helm

Helm

Local-first AI suite of three products on a deterministic policy layer outside the language model: what an agent may do is decided by code and risk tiers, not prompt wording. Windows desktop app (Electron) driving local open-source models via Ollama, plus a CLI and an MCP server. Forge: open-model AI IDE and agent runtime working in a disposable git worktree and returning a reviewable diff. Command: live approval queue over server-sent events with a signed receipt timeline. Counsel: meeting copilot citing its source line for every decision. Strict TypeScript, Ed25519-signed hash-chained ledger.

Zeno

A public design system (oklch tokens, CSS primitives, a Tailwind preset) extracted from eight of my projects. A script evaluates the WCAG contrast budget over 8 themes x 2 grounds, 814 assertions (text at 4.5:1, graphics at 3:1), and fails CI on any regression, proving the ratios rather than asserting them. Stack: CSS, design tokens, oklch, Tailwind CSS, Node.js, GitHub Actions.

Glass

Analytics service that answers plain-English questions with funnels, retention and user-path reports, and shows the exact SQL behind every number, on a NestJS backend with a React dashboard. Safe by construction: the model can only fill a fixed, read-only query template, enforced by a typed query grammar and a read-only database role, not by prompt wording. Also runs as an MCP server so AI assistants like Claude can query the metrics directly. Stack: NestJS, Node.js, TypeScript, PostgreSQL, React, Zod, Docker.

Vantage

A Google Docs-style editor that merges concurrent edits with nothing lost and no 'resolve conflict' prompt, built on a from-scratch CRDT (Fugue algorithm) proven with property-based tests across 10,000+ randomized concurrent-edit runs. Offline-first on an IndexedDB op-log synced over WebSockets. Stack: TypeScript, React, ProseMirror, WebSockets, IndexedDB, Node.js.