Full-Time Senior Prompt Engineer
ScultureAI is hiring a remote Full-Time Senior Prompt Engineer. The career level for this job opening is Senior Manager and is accepting UK based applicants remotely. Read complete job description before applying.
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ScultureAI
Job Title
Senior Prompt Engineer
Posted
Career Level
Full-Time
Career Level
Senior Manager
Locations Accepted
UK
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Job Details
About ScultureAI
ScultureAI is a B2B SaaS startup developing coaching solutions for shaping organisational culture using large-language models and other cutting-edge Al technologies.
About the role
We are looking for a talented Senior Prompt Engineer to help us push the boundaries of what’s possible with LLMs. This role has two core aspects. First, you’ll design, build and optimise complex multi-agent prompt pipelines that directly power our product and customer outcomes. Second, you'll build and scale rigorous evaluation systems to evaluate these constantly changing pipelines.
Requirements
- Architect, design, and implement robust multi-agent pipelines leveraging a diverse range of LLMs
- Systematically decompose complex problems into structured, scalable prompt-driven solutions
- Use advanced prompt engineering techniques to drive desired results
- Build and maintain a library of atomic evaluation prompts to measure coaching output quality across several dimensions
- Develop and automate evaluation systems that can benchmark, identify regressions, and measure the stability of new prompts, models, and model versions
- Use statistical techniques and domain knowledge to define quality thresholds, analyse variance, and surface outliers or black swan failures
- Participate in designing and running human-in-the-loop processes to validate and improve evaluator prompts
- Contribute to internal tooling for prompt observability, output sampling, evaluator scoring, and user feedback
- Optimise the trade-offs between latency, quality and operational cost
- Implement safety and security best practices
- Build and manage modular, version-controlled prompt libraries with support for templating and reuse
- Collaborating with full-stack engineers to design and implement complex automatedsystems to evaluate the quality and consistency of outputs across pipeline stages and agents.
- Collaborating with other technical colleagues to develop tools and systems for prompt observability, such as usage tracking, output variance monitoring, and feedback loop integration.
Necessary to have
- 18+ months of hands-on experience in LLM prompt engineering, ideally with multi-prompt or agentic architectures
- Demonstrated experience designing or contributing to LLM evaluation systems, either for QA, R&D, or production monitoring
- Strong understanding of LLM behaviour, capabilities, and failure modes
- Comfortable working with prompt evaluation tools or libraries (e.g., OpenAI Evals, DeepEval, Promptfoo, TruLens, LangChain eval, etc.)
- Familiarity with advanced evaluation metrics and an ability to interpret results
- A Masters degree with distinction in a relevant subject
- Appreciation of coaching, behaviour change and organizational culture principles
- Experience designing few-shot evaluator prompts and LLM-as-a-judge pipelines
Personal Characteristics
- Great communicator who builds strong relationships with colleagues
- Self-starter and fast learner, able to operate in a fast-paced environment
- Creative problem solver with a can-do attitude
- Accountable, reliable with high attention to detail
- Passionate about our vision to reimagine coaching and corporate culture
Benefits
- Competitive salary and equity options.
- Flexible working hours and a remote-first environment.
- Opportunity to work on groundbreaking AI technology.
- Learning and development budget to support your career growth.
- A supportive, inclusive team culture where your contributions make a real impact.
Skills
FAQs
What is the last date for applying to the job?
The deadline to apply for Full-Time Senior Prompt Engineer at ScultureAI is
14th of August 2025
. We consider jobs older than one month to have expired.
Which countries are accepted for this remote job?
This job accepts [
UK
] applicants. .
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