Sonnet Code
Service · AI & LLM

Work with senior Prompt Engineering engineers.

Prompt Engineering engineers who ship production systems, not pitch decks.

We build production Prompt Engineering systems for US product teams every week. Senior engineers, aligned with your timezone, embedded in your process. We write Prompt Engineering the way your team will still want to read it next year.

Let's talk

Jump-start your Prompt Engineering

Tell us a bit about what you're building. We reply within one business day.

By submitting this form you agree to our privacy policy. No spam, no sharing.
Prompt Engineering in production
Why Sonnet Code for Prompt Engineering

The bar we hold ourselves to.

Senior only

Every engineer we put on your work has 5+ years shipping production code. No rotations out, no bait-and-switch.

Measured, not promised

Performance budgets, observability, and evaluation metrics are part of the build — not things we add after you ask.

Honest scoping

We'll tell you when this is the wrong tool for the job. The fastest way to lose a client is to ship the wrong thing.

What we build with Prompt Engineering

Prompt Engineering work, shipped.

New Prompt Engineering systems

Greenfield Prompt Engineering services architected for the three-year horizon — proper boundaries, tests, and documentation from day one.

Prompt Engineering modernization

Incremental migration from legacy systems, using the strangler-fig pattern so you never bet the farm on a single cutover.

Prompt Engineering scaling

Taking an existing Prompt Engineering codebase from working-for-10k-users to working-for-10M-users, without a full rewrite.

Prompt Engineering team augmentation

Senior Prompt Engineering engineers embedded in your team, shipping alongside your engineers with the same standards and PR process.

Ready to get started with Prompt Engineering? Fifteen minutes is all it takes.