Quantumjelly
Services

Reliable tech. Wild speed.

AI-assisted development has changed the economics of software. Better outcomes, faster delivery — none of the overhead.

The economics

Months of work in days.

AI handles scaffolding, boilerplate, and first drafts at machine speed — directed and steered by senior engineering judgment. The result: production-quality software for a fraction of what an agency quotes, in a fraction of the time.

MVP in 1–2 weeks, not a quarter
Senior engineering rates, not agency markup
No retainer, no discovery phase
You own the code outright
Talk to a human →
🧠
The safeguard

AI writes. We review.

AI moves fast and confidently — which means it also fails confidently. Every commit is reviewed before it merges. Hallucinated APIs, insecure patterns, logic that passes tests and breaks in production: caught before it ships.

Code review on every PR, no exceptions
Security, auth and edge cases checked properly
No blind copy-paste from the model
Full transparency at every stage
Talk to a human →
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The quality floor

Best practices aren't optional.

Hand-coding means trade-offs — tests get deferred, error handling gets cut, observability is phase two. When AI carries the effort, nothing gets skipped. The things that used to require a full sprint get done on day one.

Tests written alongside the feature, not after
Logging, error boundaries and rate limits from day one
Accessible and performant by default
Migrations, rollbacks, monitoring — all included
Talk to a human →
The stack

Battle-tested. Not bleeding-edge.

Infrastructure that's been in production for a decade, with AI handling the new shiny on top — and senior devs and designers double-checking the result.

Frontend
Next.js · TypeScript · Tailwind
Backend
Postgres · Prisma · tRPC
AI
Claude · OpenAI · local Llama
Infra
Vercel · Fly · Cloudflare
Auth
Clerk · Auth.js · WorkOS
Payments
Stripe · Polar · invoicing
Observability
Sentry · Axiom · PostHog
Tests
Playwright · Vitest · evals

Let's build something quickly.