Prompt Engineer - £775p/d (Inside IR35) - 6 Months
Posted 4 days ago by IO Associates
£775 Per day
Inside
Hybrid
London, UK
Summary: The role of Prompt Engineer involves designing, testing, and optimizing prompts for large language models within a central government organization. This position is crucial for enhancing AI co-pilots and autonomous agents, ensuring they deliver accurate and relevant outputs for public services. The engineer will work collaboratively with multidisciplinary teams to drive public sector transformation. The contract is for 6 months with a possibility of extension.
Key Responsibilities:
- Build agent architectures enabling autonomy and task completion
- Integrate AI agents into apps, APIs, and automation workflows
- Collaborate with research, product, and engineering teams
- Optimise agent behaviour via feedback and user interaction
- Evaluate performance and maintain safety mechanisms
- Document agent logic, design, and dependencies
Key Skills:
- Proven experience designing and refining LLM prompts and AI agents
- Strong analytical skills for assessing outputs and interactions
- Experience managing prompt libraries and best-practice templates
- Effective cross-functional collaboration and communication
- Familiarity with evaluation frameworks and key performance metrics
- Up-to-date understanding of LLMs, prompt engineering, and agentic AI
Salary (Rate): £775 per day
City: London
Country: UK
Working Arrangements: hybrid
IR35 Status: inside IR35
Seniority Level: undetermined
Industry: IT
Role: Prompt Engineer
Location: London (Hybrid)
Day Rate: £775p/d (Inside IR35)
Duration: 6 months (likely extension)
iO Associates have been engaged by a central government organisation to find a Prompt Engineer to design, test, and optimise prompts for large language models that power AI co-pilots and autonomous agents. Working at the heart of public sector transformation, you'll collaborate with multidisciplinary teams to ensure AI delivers accurate, safe, and contextually relevant outputs that improve services for citizens.
Key Responsibilities:
?? Build agent architectures enabling autonomy and task completion
?? Integrate AI agents into apps, APIs, and automation workflows
?? Collaborate with research, product, and engineering teams
?? Optimise agent behaviour via feedback and user interaction
?? Evaluate performance and maintain safety mechanisms
?? Document agent logic, design, and dependencies
Key Skills & Experience:
?? Proven experience designing and refining LLM prompts and AI agents
?? Strong analytical skills for assessing outputs and interactions
?? Experience managing prompt libraries and best-practice templates
?? Effective cross-functional collaboration and communication
?? Familiarity with evaluation frameworks and key performance metrics
?? Up-to-date understanding of LLMs, prompt engineering, and agentic AI
Desirable:
?? Experience with frameworks such as AutoGPT, CrewAI, or LangGraph
?? Background in conversational UX or human-AI interaction
?? Knowledge of vector databases or RAG techniques
?? Awareness of ethical and safety considerations in AI system
If you'd like to learn more, feel free to reach out directly or email for a confidential chat.
Role: Prompt Engineer Location: London (Hybrid) Day Rate: £775p/d (Inside IR35) Duration: 6 months (likely extension)