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Junior Prompt Engineer

Job in Reading, Berkshire, RG1, England, UK
Listing for: Halian | Managed Services, Recruitment Agency & Contract Staffing
Full Time position
Listed on 2026-07-13
Job specializations:
  • Software Development
    AI Engineer (Applied/Software), Machine Learning/ ML Engineer
Salary/Wage Range or Industry Benchmark: 25000 - 38000 GBP Yearly GBP 25000.00 38000.00 YEAR
Job Description & How to Apply Below

Benefits

  • Pension, Hybrid Working, Training & Development, Career Progression, Annual Leave, Company Benefits etc.

We are an innovative technology company developing cutting‑edge AI solutions for a diverse range of commercial clients. As we continue to invest in artificial intelligence and emerging technologies, we are looking to expand our growing AI team with the addition of a Junior Prompt Engineer.

We are looking to hire a Junior Prompt Engineer with a passion for Generative AI and Large Language Models (LLMs). This is an excellent opportunity for a recent graduate or early‑career professional to work alongside experienced AI Engineers and Software Developers, helping to design, test, and optimise AI‑powered solutions used across a variety of real‑world applications.

MUST have
  • A degree qualification (2:1 or above preferred) in Computer Science, Artificial Intelligence, Data Science, Software Engineering, Mathematics, Physics, Engineering, or another STEM discipline
  • A genuine interest in Generative AI and Large Language Models (LLMs)
  • Basic to intermediate Python programming skills
  • Experience using AI tools such as ChatGPT, Claude, Gemini, or similar LLMs
  • Strong analytical and problem‑solving skills
  • Excellent communication skills (both verbal and written)
  • A willingness to learn, develop, and build a career within AI
Attributes
  • An understanding of prompt engineering principles and AI best practices
  • Experience working with OpenAI, Anthropic, or Azure OpenAI APIs would be beneficial
  • Knowledge of AI frameworks such as Lang Chain, Llama Index, or similar
  • Familiarity with Git and Git Hub version control
  • Experience with SQL and REST APIs would be advantageous
  • Knowledge of vector databases and Retrieval‑Augmented Generation (RAG) concepts would be beneficial
  • Exposure to cloud platforms such as Microsoft Azure or AWS
  • Experience using automation tools such as Power Automate, n8n, or Zapier would be advantageous
  • A proactive approach with a passion for learning new technologies
Responsibilities
  • Designing and refining prompts to improve the performance, accuracy, and reliability of AI models
  • Building AI workflows that integrate Large Language Models, APIs, databases, and automation platforms
  • Testing and evaluating AI model performance through prompt optimisation and benchmarking
  • Working closely with software engineers and stakeholders to develop AI‑powered applications
  • Applying Python and prompt engineering techniques to solve real‑world business challenges
  • Researching emerging AI technologies and recommending improvements to existing solutions
  • Maintaining prompt libraries, technical documentation, and AI best practices

If you are interested in this position, please apply with an up‑to‑date CV as soon as possible, along with your availability and salary expectations.

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