
· 2020 — Present
GURINDER SINGH
Building the nervous system for agentic engineering.
A connected platform that observes work, evolves its own tooling, applies that intelligence to real agents, and learns from validated outcomes.
I build the platforms
Observe + evolve, then, recalibrate
Vireo observes and remembers. Darwin evolves. MAIA and Devmo turn that into real outcomes — validated in a production-shaped sandbox, with results returning to memory.

Vireo
The flight recorder for AI agents
You can't trust an agent you can't see. Vireo captures everything one does — then turns it into memory the next run can use.
Vireo records what an agent actually did — across the CLI, shell hooks, MCP, and skills — and distills those logs into procedural, failure, and semantic memory the next run can draw on. It installs in two minutes and became the team's standard for watching agents in production. With Darwin, it's the engine every other system here runs on.

Darwin
Skills that improve themselves
If a task has a prompt in, an answer out, and a way to score it, Darwin evolves it — automatically, and opens the PR.
Darwin takes the skills agents run on, tries many variations, keeps the best, and opens a pull request with the upgrade — every attempt saved with its score and reasoning, so each round builds on the last. It plugs into any repo with no fork. This is the loop that quietly improves MAIA and Devmo underneath them.

MAIA × Venmo
Cold-start to live in 20 minutes
An ephemeral Claude-CLI agent — built entirely from skills and subagents — that onboards a new merchant end to end.
MAIA is bootstrapped and ephemeral: a Claude-CLI agent assembled from skills and subagents — the same skills Darwin evolves and Vireo observes. It's the merchant-facing payoff of the engine. Over one weekend I grew its test corpus from 332 to 9,513 real scored businesses; onboarding that took ~3 months now runs in about 20 minutes.

Devmo
Venmo's agent — and its hive mind
MAIA faces merchants; Devmo faces the org. It turns the signals Vireo captures into organizational memory Venmo can act on.
Devmo is the internal counterpart to MAIA. It leans on the same Vireo + Darwin engine, but because it lives inside the org, it can do more: build a hive mind from the organizational insights, lessons, and signals Vireo captures — and evolve far more than skills. It reaches the whole internal surface area of how Venmo's engineers actually work.

Merchant Sandbox
A production-shaped validation surface for checkout, authentication, release, and partner workflows — tested end-to-end on iOS.
- Helped lead and personally tested merchant sandbox flows end-to-end across the iOS-majority user base.
- Owned iOS identity, domains, entitlements, provisioning, CI, and TestFlight distribution.
- Diagnosed authentication, universal-link, direct-API host, and switchback behavior.
Claude Cosmos
A Claude-CLI harness that lets any Vertex AI model run behind one consistent agent interface — with sanitization, PII scrubbing, and telemetry baked in.
Org-wide proxyai-video-toolkit
Turns code and technical work into narrated explainers that keep product launches current — Remotion 4.0 + Google Veo / Chirp3-TTS, runnable from GitHub Actions.
Launch storytellingn8n
My favorite way to teach others how automation works — and a powerful internal automation tool for the enterprise.
Automation + teachingNested macOS
Apple Virtualization gives agents a safe sandbox and parallelizes iOS tests for 2–3× faster runs — a secure runtime substrate for agent experimentation and the iOS test fleet.
Runtime substrateDX Sounds
MCP server merged into the PayPal AI Hub — 8 themes, 14 tools. Sonic confetti for your dev loop.
In AI HubDevmo Prompt Enhancer + Guardrails
Guardrails and prompt enhancer migrated into the canonical Devmo repo. Guardrails ship with ~90 tests including a prompt-injection battery.
ProductionizedThe tools
I reach for first.
Gemini
LlamaIndex
Gemini
LlamaIndex
RoomPlan
WidgetKit
RoomPlan
WidgetKitAsk my brain.
A live retrieval pass over my 2026 work — questions retrieve source chunks, light up systems and exact skills, then answer only from the corpus.
Ask anything.
I'll retrieve relevant chunks from the 2026 corpus and light up the systems and skills behind the answer.
Hover source chips or ask a question to illuminate systems, metrics, and related infrastructure.
28 HACKATHONS. TWO FIRSTS.
A BBC DOCUMENTARY.
A decade on the circuit across six countries — as competitor, mentor, and judge. Hover any clip to preview, click to watch the full thing.
1ST PLACE
FINALISTDevcamp NYC @ Google
Talent Management App
HackZurich 2023
Legal Lunatics
UPC Barcelona
Refugee Crowdsourcing App
Copenhacks @ Microsoft
Innovation Project
HackNY @ NYU
Urban Tech Innovation
Hack Yale (2×)
Hack Yale (2×)
PennApps — UPenn
PennApps — UPenn
try! Swift Tokyo
try! Swift Tokyo
Stages, hackathons,
and the next generation.
Talks, winning teams, and mentoring — click any photo to enlarge.
Curated Showcase.
Six surfaces worth a closer look — landscape homes, hover previews, and the full story behind each build.
SYSTEMS THAT EVOLVE.
Gurinder Singh
Staff Software Engineer
Agentic Engineering
LET'S CONNECT
Interested in collaborating on innovative projects? Get in touch and let's build something legendary together.

