Hire a Prompt Engineer who makes model output dependable.
Get answers you can put in front of customers. A pre-vetted prompt engineer designs, tests and versions the instructions behind your AI features.
- OpenAI Playground
- Anthropic Console
- Promptfoo
- LangSmith
- Langfuse
- Python
Overview
What does a Prompt Engineer do?
Your AI feature works on the demo inputs. Then real users arrive with typos, odd requests and edge cases, and the output drifts: wrong tone, missing fields, a confident answer to a question it should have declined. Somebody tweaks the prompt, something else breaks, and nobody can say whether this week's version is better than last week's.
A prompt engineer owns that layer. They write system prompts and few-shot examples, define structured output formats, build evaluation sets from real traffic, and run every change against them before it ships. Prompts become versioned, reviewed assets with measurable quality, not text pasted into a config file.
AssistHubPro matches you with a prompt engineer who has tuned production prompts, not just chat sessions. Your engineers keep building features. Your prompt engineer makes sure what the model says is consistent, on brand and correct.
- System prompt design
- Few-shot examples
- Structured outputs
- Evaluation sets
- Regression testing
Skills and stack
Every instruction the model reads, written and tested.
The day-to-day work your prompt engineer owns, in the tools your team already uses.
- System prompt designWrites the core instructions, role, constraints and refusal rules that shape every response.
- Few-shot examplesCurates worked examples that show the model the exact style, depth and format you expect.
- Structured outputsDefines JSON schemas and function calls so responses parse cleanly into your application.
- Evaluation setsBuilds labeled test cases from real user inputs, including the awkward ones that break things.
- Regression testingRuns every prompt or model change against the test set and reports what improved and what got worse.
- Prompt version controlKeeps prompts in Git or a prompt registry with change notes, reviews and easy rollback.
- Tone and brand voiceTunes wording so replies sound like your company, across support, sales and in-product help.
- Model comparisonsTests the same prompts across models and versions to find the best balance of quality, speed and cost.
Tools they already know
- OpenAI Playground
- Anthropic Console
- Promptfoo
- LangSmith
- Langfuse
- Python
- GitHub
Your prompt engineer works in your provider consoles and repositories with only the roles they need. You own every account and key, and access is removed the day a placement ends.
Human vs AI
Why a Prompt Engineer beats AI on its own.
AI tools are quick at first drafts. A dedicated prompt engineer turns them into finished work you can trust, inside your business.
| Topic | AI aloneAI tools on their own | Your prompt engineerYour Prompt Engineer |
|---|---|---|
| Knows your business | ||
| Knows your business | Starts from zero each timeStarts from a blank prompt every time you ask. | Remembers your clients and preferencesLearns your clients, preferences and way of working, and remembers them. |
| Judgment calls | ||
| Judgment calls | Can be confidently wrongFollows patterns and can sound certain when it is wrong. | Checks facts and asks before actingSpots the exception, checks the facts and asks you before acting. |
| Follow-through | ||
| Follow-through | Waits for the next promptAnswers when asked, then waits for the next prompt. | Owns each task until it is doneOwns the task from start to finish and follows up until it is done. |
| Relationships | ||
| Relationships | Can't build trustCan't build trust with the people you work with. | Part of your team to clientsTalks to your clients, vendors and team like part of your company. |
| Works in your tools | ||
| Works in your tools | Output needs copying overNeeds someone to copy its output into your systems. | Works inside your accountsWorks inside your accounts, with access you control. |
| Accountability | ||
| Accountability | Nobody stands behind itNobody stands behind the result. | Reports to you, with a free rematchYour prompt engineer reports to you, backed by an Account Manager and a free rematch. |
The best of both. Your prompt engineer can use AI tools to draft, research and summarize faster, then checks every result before it reaches you or your clients.
How hiring works
From first call to first commit.
Every prompt engineer is checked before you meet them, so your interviews are only with strong candidates.
Step 1
Free consultation
30 minutes on your your AI features, models and quality goals.
Step 2
Matched shortlist
Pre-vetted prompt engineers who fit your stack, hours and budget.
Step 3
Vetted for you
Prompt rewrite task · Evaluation design · Written English · Safety and edge cases
Step 4
Start working
A kick-off call sets up access and routines, and work starts.
Cost
What a Prompt Engineer could cost you.
No pricing grid to squeeze into. We scope the role, hours and experience with you, then quote exactly that.
- Part-timeA few focused hours a day.
- Full-timeOne prompt engineer, dedicated to you.
- TeamSeveral roles, managed together.
Example yearly cost, full-time
$115,000 salary + 30% benefits and overhead
$35/hr × 40 hrs × 52 weeks
Illustrative figures only. Your quote depends on experience and hours. Try the savings calculator.
Projects
Bigger projects you can hand over.
With stable prompts and tests in place, your prompt engineer can raise quality and safety further.
LLM-as-judge scoring
Builds automated graders, checked against human labels, so quality can be scored at scale.
Prompt injection hardening
Tests your assistant with adversarial inputs and tightens instructions and filters against them.
Fine-tuning datasets
Prepares clean example pairs when a fine-tuned model would outperform prompting alone.
Prompt playbooks for your team
Writes internal guides and templates so everyone on your team gets consistent results from AI tools.
- Pre-vettedInterview and skills test first.
- Account ManagerOne named person, always.
- Free rematchNo questions asked.
- Prompts are your IPSystem prompts, examples and evaluation sets created for you belong to your company.
FAQ
Hiring a Prompt Engineer: your questions.
Do we need a prompt engineer if we already have an AI specialist?
Often, yes, once a feature is live. An AI specialist builds the integration, retrieval and plumbing. A prompt engineer focuses full time on what the model says: instructions, examples, output formats and the tests that keep quality steady.
Which tools and models do they use?
Provider consoles such as the OpenAI Playground and Anthropic Console, evaluation tools like Promptfoo, LangSmith or Langfuse, Python for test scripts and Git for versioning. We match on the models and stack you already use.
How do they work with our developers?
Prompts live in your repository or prompt registry, and changes go through the same review as code. Your prompt engineer hands developers schemas and test results, and joins your planning so quality work is scheduled, not squeezed in.
Can they work in our time zone?
Yes. They work the hours you agree, with overlap for reviews, standups and release checks.
How fast can they start?
Most clients meet pre-vetted candidates within days of the free consultation. After you choose, onboarding covers access, current prompts and a first review of where output is failing.
How is our user data protected?
Your prompt engineer works under an NDA with least-privilege access. When evaluation sets are built from real traffic, personal details can be removed or masked first, following your data rules.
Can we scale up as we add AI features?
Yes. Add hours, or add a second prompt engineer or an AI specialist through your Account Manager as your feature list grows.
What if the prompt engineer isn't the right fit?
Tell your Account Manager and we'll match you with someone else at no cost, no questions asked.
Hire a Prompt Engineer with AssistHubPro.
A free 30-minute consultation and a real reply within 24 hours. No obligation.
- 1We reply within 24 hoursA real person reads every request and replies with a clear next step.
- 2Free 30-minute consultationWe scope the role, the hours and the tools you use.
- 3Meet your matchesInterview pre-vetted prompt engineers and choose who joins.
- Pre-vetted
- Free rematch
- Account Manager