GenAI Prompt Engineer

TieTalent; London; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A prominent AI recruitment agency is seeking a GenAI Prompt Engineer to optimize LLMs in London. The ideal candidate will have a degree in Computer Science or related field, 1+ years in prompt engineering, and experience with platforms like OpenAI. Responsibilities include designing prompts and collaborating with teams. This full-time role requires hands-on technical skills and offers the chance to make a significant impact in an evolving field.

Qualifications

• At least 1 year experience in prompt engineering or LLMs.
• Strong background in AI/ML and NLP.
• Hands-on experience with platforms in AI.

Responsibilities

• Design, test, and refine prompts for LLMs.
• Develop prompt libraries for internal use.
• Collaborate with teams to integrate engineering into workflows.

Skills

Prompt engineering

NLP understanding

Python

Analytical skills

Problem-solving

Education

Bachelor’s or Master’s degree in relevant field

Tools

OpenAI

Hugging Face

LangChain

Job description

Overview

Certain Advantage are recruiting on behalf of our globally renowned brand for a GenAI Prompt Engineer in London, initially until 31st Dec. This will need 2-3 days working onsite in Central London.

Responsibilities

• Design, test, and refine prompts to optimise the performance of LLMs across various tasks (e.g., summarisation, Q&A, content generation, reasoning).
• Develop prompt libraries and reusable templates for internal and external use cases.
• Collaborate with cross-functional teams to integrate prompt engineering into product workflows and AI pipelines.
• Analyse model outputs and user feedback to iteratively improve prompt effectiveness and reliability.
• Stay current with the latest research and advancements in prompt engineering, LLMs, and GenAI.
• Contribute to internal documentation, best practices, and knowledge sharing initiatives.

Required Qualifications

• Bachelor’s or Master’s degree in Computer Science, Artificial Intelligence, Linguistics, or a related field.
• Commercial years of experience in AI/ML, with at least 1 year focused on prompt engineering or working with LLMs.
• Strong understanding of NLP, transformer models, and generative AI principles.
• Hands-on experience with platforms such as OpenAI, Anthropic, Cohere, or Hugging Face.
• Proficiency in Python and familiarity with tools like LangChain, PromptLayer, or similar.
• Excellent analytical, problem-solving, and communication skills.

Preferred Qualifications

• Experience with prompt tuning, fine-tuning, or reinforcement learning from human feedback (RLHF).
• Familiarity with multi-modal AI systems (e.g., text-to-image, speech-to-text).
• Background in UX writing, technical writing, or computational linguistics.
• Contributions to open-source GenAI projects or publications in AI/ML conferences.

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Engineering and Information Technology
• Industries: Technology, Information and Internet

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