Lead Machine Learning Engineer – Conversational AI Platform
Location: Remote / Flexible
Contract Type: Permanent
We’re partnering with a pioneering technology business that’s redefining how humans interact with AI at scale. Their platform powers millions of personalised conversations every day, and they’re looking for a hands-on technical leader to drive the next evolution of their large language model (LLM) capabilities.
This is a rare opportunity to take ownership of the architecture, optimisation, and deployment of cutting-edge models in a high-growth environment. You’ll lead a small, highly skilled team while remaining deeply involved in coding and problem-solving.
Key Responsibilities
- Lead from the front: Architect solutions, mentor engineers, and contribute production-level code (Python/PyTorch).
- Optimise the conversational engine: Enhance context handling, retrieval pipelines, and inference speed for real-time performance.
- Own the model lifecycle: Define strategies for fine-tuning, RLHF/DPO, and evaluation; oversee data sourcing and curation for improved steerability and diversity.
- Design advanced safety systems: Build classifiers and moderation frameworks that go beyond binary decisions, ensuring compliance without compromising user experience.
What we’re looking for
- Proven delivery at scale: 6+ years in engineering, with significant experience shipping ML/LLM solutions to large audiences.
- Technical depth: Strong Python/PyTorch skills and familiarity with modern LLM stacks (e.g., Hugging Face, vLLM, fine-tuning pipelines).
- Practical alignment expertise: Understanding of how prompts, sampling, and architecture influence model behaviour.
- Execution mindset: Ability to prioritise shippable solutions over academic perfection.
- Ownership mentality: Committed to performance, safety, and user experience beyond initial deployment.
The environment
- Team: Small, senior engineering group reporting into you, with close collaboration across DevOps and product.
- Culture: High autonomy, rapid decision-making, and direct access to leadership.
- Tech stack: Python, PyTorch, vLLM, Hugging Face, RAG pipelines, custom moderation systems.
Lead Machine Learning Engineer / High Growth AI Start-Up in Aberdeen employer: Opus Recruitment Solutions
Join a forward-thinking company that values innovation and collaboration, offering a dynamic work culture where your contributions as a ServiceNow Mapping Product Lead will directly impact large-scale digital transformation initiatives. With a focus on employee growth, we provide ample opportunities for professional development and the chance to work alongside industry leaders in a hybrid environment that promotes work-life balance. Our commitment to excellence and support for your career aspirations make us an exceptional employer in the tech landscape.
Contact Details:
Opus Recruitment Solutions Recruitment Team
