AI Engineer – Gen AI Specialist in London

Join to apply for the AI Engineer – Gen AI Specialist role at OLIVER Agency. Established in 2004, OLIVER is the world’s first and only specialist in designing, building, and running bespoke in‑house agencies and marketing ecosystems for brands. We partner with over 300 clients in 40+ countries and counting. Our unique model drives creativity and efficiency, allowing us to deliver tailored solutions that resonate deeply with audiences. As a part of The Brandtech Group, we’re at the forefront of leveraging cutting‑edge AI technology to revolutionise how we create and deliver work. Our AI solutions enhance efficiency, spark creativity, and drive insightful decision‑making, empowering our teams to produce innovative and impactful results.

About the role

We’re seeking a highly capable Gen AI Specialist to support the development and delivery of AI‑driven solutions, with a strong focus on visual content creation. This role centres on image and video generation, model training, and creative AI experimentation. You will work closely with our Gen AI & AI Technology Lead to prototype, refine, and deliver AI outputs that integrate seamlessly into our CGI workflows. You will collaborate with creatives, producers and CGI artists to bring AI‑powered visual concepts to life, enabling faster, more flexible content creation for global clients. You will also apply data‑driven methodologies to support content production, tools and automation, leveraging AI wherever possible.

What you will be doing

• AI Visual Generation
  • Support rapid prototyping using:
  • Text‑to-Image / Text‑to-Video
  • Image‑to-Image / Video‑to-Video
  • Image‑to‑Video & Video‑to‑Image workflows
• Produce high‑quality, product‑accurate AI imagery and video content.
• Model Training & Optimisation
  • Train and fine‑tune LoRA models.
  • Optimise models using a combination of CGI datasets, photographic references, look‑dev materials, etc.
  • Explore emerging image/video generation techniques and model architectures.
• Workflow Collaboration
  • Work with CGI Artists to ensure outputs meet client‑approved visual standards.
  • Help translate experimental results into reliable, repeatable workflows.
  • Contribute to testing, validating, and refining AI tools used by the wider team.
• R&D and Exploration
  • Stay informed about new developments in the Gen AI and ML landscape.
  • Identify and evaluate new tools, methodologies and models.
  • Document findings clearly for internal use and knowledge‑sharing.
  • Actively share expertise and learnings with the team.

What you need to be great in this role

• Strong enthusiasm for AI, Machine Learning and emerging technologies.
• Hands‑on experience generating image or video content using AI models.
• Familiarity with LoRA training and model fine‑tuning.
• Interest in LLM development and integration.
• Understanding of modular, data‑driven workflow design.
• Strong visual sensibility and an interest in CGI aesthetics.
• Experience with tools such as ComfyUI, Qwen, WAN or equivalent platforms.
• Ability to thrive in a fast‑paced, iterative R&D environment.
• Confidence to experiment – explore, learn from setbacks and iterate quickly.

Nice to Have

• Python skills for automation and tooling.
• Familiarity with CGI pipelines, VFX workflows or look development.
• Understanding of GPU compute usage and optimisation.

Our values shape everything we do

• Ambitious to succeed
• Imaginative to push the boundaries of what’s possible
• Inspirational to do groundbreaking work
• Always learning and listening to understand
• Results‑focused to exceed expectations
• Actively pro‑inclusive and anti‑racist across our community, clients and creations

OLIVER, a part of the Brandtech Group, is an equal‑opportunity employer committed to creating an inclusive working environment where all employees are encouraged to reach their full potential, and individual differences are valued and respected. All applicants shall be considered for employment without regard to race, ethnicity, religion, gender, sexual orientation, gender identity, age, neurodivergence, disability status or any other characteristic protected by local laws. OLIVER has set ambitious environmental goals around sustainability, with science‑based emissions reduction targets. Collectively, we work towards our mission, embedding sustainability into every department and through every stage of the project lifecycle.