---
title: "Hire Prompt Engineers | LLM Evaluation and Prompt Design | Agility"
url: https://agilitytech.ai/hire-prompt-engineers
description: "Hire prompt engineers who measure, not guess: prompt design, evaluation sets and model selection that make LLM features reliable and cheaper to run."
publisher: Agility (agilitytech.ai)
---

Hire · Prompt Engineers

# Hire Prompt Engineers

Prompt engineering has a bad reputation because a lot of it is guesswork dressed up.

- Senior, pre-vetted engineers only
- You interview and choose before anyone starts
- Working-hours overlap with India, the UK and the USA

48-hour turnaround · free · no obligation

### Talk to us about hiring prompt engineers

Tell us what you want to build. A senior engineer sends back a scope and a fixed price within two business days, no obligation.

In short

## The quick answer

Done properly, it is closer to testing: write the prompt, run it against a set of real examples, look at the failures, change one thing, run it again. That is how our prompt engineers work.

The role

## What our prompt engineers do

### What our prompt engineers build

- Evaluation sets built from real inputs and correct outputs
- Prompts and system instructions tuned against those sets
- Model comparisons on accuracy, speed and cost
- Structured output that validates every time
- Prompt versioning so a change can be rolled back

### When to hire a prompt engineer

- An LLM feature works in demos and fails with real users
- Nobody can say whether the last prompt change helped
- Model costs are high and you suspect a smaller model would do
- You need output in a strict format every time

Skills

## Skills and stack

- OpenAI
- Claude
- Gemini
- Open models
- Promptfoo
- LangSmith
- Python
- JSON Schema

Process

## How hiring works

- 01 ### Share your needs Tell us the stack, the problem and how you want to work. We confirm fit on a short call.
- 02 ### Interview the shortlist We send profiles of pre-vetted senior engineers who match your stack and domain. You interview and choose.
- 03 ### Onboard and ship Your engineers onboard and start delivering without a long recruiting cycle, with working software at the end of each sprint.

Engagement models

## Three ways to work with us

### Staff augmentation

Add one or two senior engineers to your existing team to close a specific skill gap. Your leads, our specialists.

### Dedicated team

A small senior team working only on your roadmap, with a lead who owns delivery.

### Defined project

A scoped build such as a RAG system, a model or a pipeline, delivered to an agreed outcome.

Related work

## See similar systems in production

[HSN code classification case study](https://agilitytech.ai/case-studies/hsn-classification)[Insurance document automation case study](https://agilitytech.ai/case-studies/insurance-automation)[Ship chandler RFQ automation case study](https://agilitytech.ai/case-studies/ship-chandler-rfq)

Next step

Comparing options? Read [what it costs to hire AI developers](https://agilitytech.ai/hire-ai-developers-cost) or [contact us](https://agilitytech.ai/contact) to discuss your project.

FAQ

## Hiring prompt engineers: FAQs

[Ask us something else](https://agilitytech.ai/contact)

**Is prompt engineering still needed with newer models?+**

Less trickery is needed, but the testing discipline matters more than ever. Newer models are better at following instructions, and you still need to check they followed yours.

**What is an evaluation set?+**

A collection of real inputs with the answers you expect. Every prompt or model change is run against it, so you know if quality went up or down.

**Can a prompt engineer cut our LLM costs?+**

Often. Shorter prompts, caching and moving simple tasks to a smaller model can reduce costs, and the evaluation set shows whether quality held.

**Do they work alone or with developers?+**

Usually alongside your developers or ours, since prompts live inside code and need to ship with it.

Keep reading

## Related pricing and decision guides

[Hire AI developers (all roles)](https://agilitytech.ai/hire-ai-developers)[Hire LLM developers](https://agilitytech.ai/hire-llm-developers)[Hire RAG developers](https://agilitytech.ai/hire-rag-developers)[Hire LangChain developers](https://agilitytech.ai/hire-langchain-developers)[Hire AI agent developers](https://agilitytech.ai/hire-ai-agent-developers)[Hire machine learning engineers](https://agilitytech.ai/hire-machine-learning-engineers)

## Get your exact number with a free 48-hour audit

Indicative ranges only get you so far. Tell us the specifics and get a scope and a fixed price in two business days.

Get my fixed estimate