Prompt Engineer / AI Engineer

GIMO Global Interactive Marketing Online Ltd; City of London; On-site; GBP 50,000 - 70,000; Full time

Job summary

A leading marketing agency in London is seeking a mid-level Prompt Engineer & AI Engineer to enhance AI-driven applications. The ideal candidate will have 2-3 years of experience in AI/ML roles, strong Python skills, and the ability to design effective prompts for large language models. This position offers a hybrid working model with competitive benefits, including private health insurance and development programs.

Benefits

Hybrid working: 2 days in office, 3 days remote

Private Health Insurance

Learning and Development Programmes

Qualifications

• 2-3 years of professional experience focused on AI/ML applications.
• Proven ability to design and iterate on prompts for LLMs.
• Strong command of Python for API interaction and application building.

Responsibilities

• Design, build, and refine prompts for LLMs for business applications.
• Conduct analysis of model responses and improve performance.
• Develop and maintain Python scripts for AI systems.

Skills

Prompt Engineering

Python Proficiency

Collaborative Development

Tools

Replit

AI Frameworks (LangChain, LangGraph)

Vector Databases (Pinecone, Weaviate)

Job description

Global Interactive Marketing Online (GIMO) Global Interactive Marketing Online (GIMO) is a London-based leading independent marketing agency and software developer within the iGaming industry. GIMO works in close partnership with leading global gaming brands such as NetBet, 777, and betFIRST.

About Netbet Brand:

Since 2006, NetBet has delivered the ultimate online casino and sportsbook experience for its players across the globe. Alongside sports betting and casino, players have also enjoyed Lotto, Live Casino, and Poker products. With access to multiple languages across all its registered markets, thousands of industry‑leading casino games, and daily sports events, NetBet has evolved into one of the world’s favourite online gaming brands. NetBet provides users with a friendly environment, total security, and reliable navigation. Its features are recognised by flagship organisations specialising in regulating and controlling online gaming sites. To enrich player trust and protection NetBet has several gaming licences from across the world including MGA, UK, Germany, Denmark, Greece, France, Romania, and Italy. This ensures that NetBet operates in line with the rules and regulations of each jurisdiction and that players receive the best possible service.

Role Overview:

We are seeking an innovative and detail‑oriented mid-level Prompt Engineer & AI Engineer to enhance our AI‑driven applications. This role is crucial for designing, testing, and refining the prompts that power our large language models (LLMs) and for developing supporting Python‑based tools, often within collaborative environments like Replit. The ideal candidate has a deep understanding of conversational AI, a creative mindset for problem‑solving, and a strong commitment to the evolving field of generative AI.

Duties and Responsibilities:

• Design, build, test, and refine high‑quality prompts to steer LLMs toward desired outputs and behaviors for key business applications.
• Conduct thorough analysis of model responses and perform iterative prompt engineering to improve accuracy, tone, and overall performance.
• Develop, test, and maintain Python scripts and applications, particularly within collaborative platforms like Replit, to support AI systems and streamline workflows.
• Collaborate with product and engineering teams to integrate prompting strategies into user‑facing features and backend systems.
• Stay current with the latest advancements in prompt engineering techniques, LLM capabilities, and conversational AI research.
• Play a key role in building and maintaining a centralized library of best‑in‑class prompts and interaction patterns to ensure consistency and reusability.

Person Specifications:

Core Qualifications (Must‑Haves)

• Experience: 2‑3 years of hands‑on professional experience in an AI Engineer, ML Engineer, Data Scientist or Python development role with a focus on AI/ML applications.
• Prompt Engineering: Proven ability to design and iterate on prompts for real‑world LLM applications, with a strong portfolio of examples.
• Python Proficiency: Strong command of Python and its use in interacting with APIs and building applications.
• Collaborative Development: Experience using collaborative coding environments like Replit for rapid prototyping and team‑based projects.

Ideal Qualifications (Nice‑to‑Haves)

• API Integration: Practical experience integrating with third‑party APIs and services within AI workflows.
• AI Frameworks: Familiarity with AI development frameworks such as LangChain or LangGraph.
• Vector Databases: Understanding of or experience with vector databases (e.g., Pinecone, Weaviate) for managing embeddings.
• Cloud Platforms: Familiarity with cloud services for deploying and managing applications (e.g., Google Cloud Run, AWS Lambda) is a plus.
• Hybrid working [ 2 days in office/ 3 days remote]
• Private Health Insurance
• Learning and Development Programmes

More benefits are available and will be discussed once successful. These benefits are applicable to Malta based candidates.

“GIMO is committed to equality of opportunity for all staff and applications from individuals are encouraged regardless of age, disability, sex, gender reassignment, sexual orientation, pregnancy and maternity, race, religion or belief and marriage and civil partnerships.

For more information on how we protect your personal data and process your application, please see our Recruitment Privacy Notice.’