AI Developer in London

VCCP is the challenger agency for challenger brands, with over 900 people around the world. We offer full-service marketing and brand experience solutions from advertising to media buying, content production to data science, customer mapping to platform design & build.

Bernadette is our award-winning specialist product and service and digital comms discipline of the VCCP Partnership. We are a friendly and knowledgeable team of 80 specialists across Strategy & Data, UX, Design, Motion, Technology & Engineering, Project & Account Management and Operations, all dedicated to creating great work across all digital channels.

Our culture at VCCP Group is unique, and we are looking for people who will make a positive contribution to this. Therefore, the candidate must have the following attributes:

• A collaborative nature
• An entrepreneurial spirit
• Take pride in their work
• Have an honest approach
• Be un-precious and be able to recognise that a good idea can come from anywhere
• Take responsibility

We are Bernadette - Bernadette means Brave as a bear. Being brave as a bear is having the confidence to face any challenge. It’s having a relentless curiosity. Fearlessly breaking new ground and having a passionate pioneering digital spirit.

Our mission is to make digital more valuable, using creativity and collaboration to unlock innovation. That includes opening new categories and formats, delivering groundbreaking customer interactions, or generating long-term customer advocacy - across the whole digital ecosystem. We design and make digital experiences, products and campaigns which set new standards for everyone to follow, are indispensable and you can’t imagine life without them.

This is an engineering-focused role dedicated to the practical implementation of AI. You will design the logic for AI agents and optimize how our platforms interact with LLMs, ensuring that AI features are functional, brand-safe, and technically sound.

Key Responsibilities:

• Design and implement agentic workflows and prompt strategies.
• Develop RAG systems to allow AI models to interact with specific client data sets.
• Optimize AI performance, focusing on token usage, latency, and response accuracy.
• Work within the Python stack to deploy AI services into production.
• Benchmark AI outputs against established quality and safety guardrails.

Required Experience:

• Strong software engineering foundation with proficiency in Python.
• Hands-on experience with LLM APIs and API orchestration.
• Ability to translate emerging AI capabilities into stable, shippable product features.

Beneficial Experience:

• Experience with Python for data processing and model evaluation tasks.
• Experience with Weavy or similar.
• Experience with C#/.NET.
• Knowledge of frontend technologies for building conversational UI prototypes.

We believe that DE&I is about creating a strong culture of inclusion within our agency, where everyone can thrive and be their authentic self. VCCP is an equal opportunity employer and does not discriminate on the basis of gender, age, disability, religion, belief, sexual orientation, marital status, or ethnicity. If you require any adjustments during the application or interview process, please let us know via joinus@vccp.com.

As part of our onboarding process, you will be required to complete a Criminal Records Declaration regarding any unspent convictions. For roles in finance, HR, Legal, IT or senior management, we may be required to verify your declaration with a basic DBS check, as well as an Adverse Finance and ID check.

Please note, we try to respond to as many applications as possible but, if you do not hear from us within two weeks of submitting your application, please assume we are unable to proceed with your application for this specific role. Thank you for your interest in VCCP.