LA International Computer Consultants Ltd

Contractor job Prompt Engineer

London (SW1A 2AH)

LA International Computer Consultants Ltd

Job position

Contractor
As soon as possible
6 months
£400-450
< 2 years experience
SW1A 2AH, London, England, United Kingdom
Published on 09/10/2025

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Prompt Engineer
6 Month contract initially
Location: London
Rate: £400 £450 p/d (via Umbrella company)

We have a great opportunity with a world leading organisation where you will be provided with all of the support and development to succeed. A progressive organisation where you can really make a difference. We have a great opportunity for an Prompt Engineer to join the team.
Prompt Engineer in the Data and Analytics domain within banking plays a crucial role in leveraging Generative AI (GenAI) and large language models (LLMs) to extract valuable insights and automate processes efficiently and compliantly

Key Responsibilities:
* Design, develop, and refine prompts to maximize the accuracy and effectiveness of GenAI models.
* Utilize techniques like few-shot prompting, chain-of-thought, and RAG (Retrieval Augmented Generation) to improve model performance within banking applications.
* Iteratively test and refine prompts based on the evaluation of AI outputs to enhance model performance.
* Manage the full prompt lifecycle, ensuring alignment with business needs and technical requirements.
* Formulate precise queries to guide AI models in analysing vast datasets for market trends, risk assessment, and portfolio optimization.
* Help generate automated reports, summaries of key financial metrics, revenue/expense forecasts, and risk assessments.
* Optimize AI outputs to turn raw data into actionable insights for decision-making.

Key Skills & Experience:
* A strong understanding of Large Language Models (LLMs), including architectures, capabilities, and limits.
* Familiarity with different GenAI model types, such as text generation, summarization, and question answering.
* Knowledge of model hallucinations, bias, and context windows.
* Mastery of prompting strategies such as zero-shot, few-shot, chain-of-thought (CoT), tree-of-thought (ToT), and self-consistency.
* Expertise in Retrieval Augmented Generation (RAG) architecture and implementation to integrate external, up-to-date, and proprietary data sources.
* Knowledge of prompt templating, variable injection, and dynamic prompt generation
* Strong SQL skills for querying and extracting data from banking databases.
* Proficiency in Python (or similar) for data manipulation, scripting, automation, and integrating with AI APIs.
* Familiarity with data structures and data warehousing concepts.
* Understanding of API authentication, rate limits, and error handling
Desirable skills/knowledge/experience:
* Analytical and Critical Thinking
* Strong verbal communication skills to collaborate with data scientists, engineers, business stakeholders, and legal teams
* Meticulousness in crafting prompts, as small changes can impact AI output quality and adherence to regulatory requirements
* Ability to work effectively in cross-functional teams (Data Science, ML Engineering, UX, Legal, Business Units).

This is an excellent opportunity on a great project of work, If you are looking for your next exciting opportunity, apply now for your CV to reach me directly, we will respond as soon as possible.


LA International is a HMG approved ICT Recruitment and Project Solutions Consultancy, operating globally from the largest single site in the UK as an IT Consultancy or as an Employment Business & Agency depending upon the precise nature of the work, for security cleared jobs or non-clearance vacancies, LA International welcome applications from all sections of the community and from people with diverse experience and backgrounds.

Award Winning LA International, winner of the Recruiter Awards for Excellence, Best IT Recruitment Company, Best Public Sector Recruitment Company and overall Gold Award winner, has now secured the most prestigious business award that any business can receive, The Queens Award for Enterprise: International Trade, for the second consecutive period.

Stoke-on-Trent, United Kingdom
100 - 249 employees
Recruitment agency
Whether you’re aiming for your next contract or permanent role, we connect you to opportunities across the digital and technology landscape in both public and private sectors. With eight specialist Divisions and a single-site team of highly experienced consultants, you get personalised support backed by deep sector expertise. Already security-cleared? Our in-house Security Vetting Department can transfer your clearance quickly and smoothly. New to cleared environments? Our Enhanced Government Security Accreditation allows us to sponsor new clearances, opening doors to career-defining roles. Operating across 90 countries and 5 continents, and supporting candidates for over 40 years, we don’t just help you find a job, we help you build a career.

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Prompt Engineer

LA International Computer Consultants Ltd

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