Prompt Engineer
Posted 9 days 16 hours ago by REO Digital Limited
Permanent
Not Specified
Other
London, United Kingdom
Job Description
About REO Digital: REO Digital is a group of agencies providing a range of digital services, including Analytics, Conversion Rate Optimisation (CRO), Accessibility, User Experience (UX) & Design, and Performance Marketing. Our mission is to empower businesses to maximise their digital potential through data-driven insights and user-focused strategies.
We are looking for a proven Prompt Engineer for Agent-Led AI Platform. This is a rare opportunity to join from the ground up, own key parts of the solution, and help shape the foundation of a technically ambitious product.
Key Responsibilities:
- Design, optimise, and evolve LLM prompts for complex multi-agent reasoning workflows
- Translate structured and unstructured data into prompt-ready inputs and memory chains
- Implement prompt chaining, context injection, and result validation patterns
- Use vector search and retrieval-augmented generation (RAG) to ground AI reasoning in fact
- Work with engineers and product leaders to align output quality with strategic goals
- Continuously test and refine prompts through performance benchmarking and feedback loops
Required Experience:
- Strong experience designing prompts for GPT-4, Claude, or equivalent LLMs
- Hands-on knowledge of frameworks like LangChain, DSPy, or similar tools
- Ability to reason across structured data, text-based inputs, and system state
- Familiarity with embedding-based retrieval, memory architectures, and prompt composition
- High standards for clarity, accuracy, and stability in AI-generated output
- Bonus: exposure to user insight tooling, behavioural analysis, or platform decision logic
Why REO Digital?
- Join a fast-growing consultancy with a strong commitment to digital innovation and quality service.
- Work with a talented team that values learning, collaboration, and career growth.
- Opportunity to shape your marketing career and take on additional responsibilities as you grow within the company.
- Attractive base salary and benefits package