Prompt Engineer

Sourcebae; United Kingdom; Remote; GBP 40,000 - 60,000; Part time

Job summary

A leading technology company is seeking a Prompt Engineer / LLM Specialist to join their AI research team. This remote position requires 4–5 years of experience in prompt engineering and a strong understanding of LLMs and generative AI. You'll work on optimizing prompts and workflows, collaborating with engineers to enhance AI applications. Ideal candidates should have experience with Python and AI libraries like Hugging Face and OpenAI API. Competitive contract terms offered.

Qualifications

• 4–5 years of experience in prompt engineering, LLM applications, or generative AI development.
• Strong understanding of LLMs, agentic AI, and AI workflows.
• Experience with Python and AI/ML libraries.

Responsibilities

• Design, test, and optimize prompts for large language models.
• Collaborate with AI researchers and engineers on agentic systems.
• Validate and curate datasets to improve model performance.

Skills

Prompt engineering

LLM applications

Generative AI development

Python programming

Analytical skills

Communication skills

Tools

Hugging Face

LangChain

OpenAI API

Job description

Prompt Engineer / LLM Specialist – Generative AI (Remote – UK)

Experience: 4–5 years

Location: Remote (UK‑based candidates only)

Job Overview:

We are looking for a skilled Prompt Engineer / LLM Specialist to join our AI research and development team. The ideal candidate will work on designing, optimizing, and validating prompts and workflows for large language models and agentic AI systems. This role focuses on building high‑quality, efficient, and scalable generative AI applications.

Key Responsibilities:

• Design, test, and optimize prompts for large language models (LLMs) to achieve accurate and contextually relevant outputs.
• Collaborate with AI researchers and engineers to develop agentic systems and autonomous AI workflows.
• Validate and curate datasets to improve model performance and reliability.
• Implement human-in-the-loop processes for iterative model improvement.
• Document prompt strategies, patterns, and system behaviors for internal knowledge sharing.
• Monitor, analyze, and troubleshoot model outputs for bias, errors, or inconsistencies.
• Stay updated with the latest developments in LLMs, generative AI, and AI agent frameworks.

Required Skills & Qualifications:

• 4–5 years of experience in prompt engineering, LLM applications, or generative AI development.
• Strong understanding of LLMs, agentic AI, and AI workflows.
• Experience with Python and AI/ML libraries (Hugging Face, LangChain, OpenAI API, or similar).
• Familiarity with data curation, model evaluation, and human-in-the-loop systems.
• Excellent analytical and problem‑solving skills.
• Strong communication skills for cross‑functional collaboration.

Preferred Qualifications:

• Experience in developing agentic AI systems or autonomous AI agents.
• Knowledge of prompt optimization for multiple modalities (text, code, audio, or vision).
• Hands‑on experience with fine‑tuning or adapting LLMs for specific tasks.

Seniority level: Associate

Employment type: Contract

Job function: Information Technology

Industries: Technology, Information and Internet

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