> Markdown version of [/jobs/ext/2406879-principal-machine-learning-engineer](https://www.wearedevelopers.com/jobs/ext/2406879-principal-machine-learning-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Machine Learning Engineer - **Company:** Faculty - **Location:** UK - **Contract:** Permanent contract - **Skills:** Machine Learning, Software Architecture, Software Requirements Analysis - **Published:** August 7, 2026 - **Apply:** https://www.totaljobs.com/job/principal-machine-learning-engineer/faculty-job107808209 ## About the Role * You possess deep technical authority in machine learning, statistics, and advanced data science methodologies and have a specific focus on the Defence domain. * You have a proven track record of designing large, complex, and scalable systems that fit organisational frameworks. * You demonstrate strong architectural leadership, with experience defining both functional and non functional software requirements. * You are a respected peer and collaborative problem solver capable of delivering expert guidance across multiple initiatives. * You are an experienced technical leader who enjoys the challenge of guiding teams and turning real world problems into architecting system architectures with minimal oversight. * You thrive when setting strategic technical direction and influencing high impact engineering projects. * You bring an entrepreneurial mindset and a passion for fostering team growth and pushing technological boundaries. ## Description As a Principal Machine Learning Engineer at Faculty, you will serve as a technical authority driving innovation, setting architectural direction, and steering our flagship systems. You will solve complex problems that span multiple projects and business units, acting as a trusted expert to both internal teams and external clients. In this high-impact role, you will shape software architectures, ensure systems scale seamlessly within broader frameworks, and leverage your deep expertise to help define company strategy while mentoring and fostering the growth of the engineering team. What you'll be doing: * Steering technical direction on flagship machine learning and advanced data science projects across the organisation. * Designing scalable, complex systems that integrate smoothly with existing software and enterprise architectures. * Defining robust functional and non-functional requirements alongside the software architecture for large-scale platforms. * Solving high-level, cross-project technical challenges that span multiple business units and client ecosystems. * Providing authoritative, expert advice on major strategic initiatives to guide teams and senior stakeholders. * Contributing directly to company strategy by identifying and leveraging emerging technologies and innovative practices. ## Related Videos - [How Machine Learning is turning the Automotive Industry upside down](https://www.wearedevelopers.com/videos/61-how-machine-learning-is-turning-the-automotive-industry-upside-down) - [Introduction to Azure Machine Learning](https://www.wearedevelopers.com/videos/368-introduction-to-azure-machine-learning) - [Modern software architectures](https://www.wearedevelopers.com/videos/1684-modern-software-architectures) - [From Vibe Coding to Viable Code with Spec-Driven Development](https://www.wearedevelopers.com/videos/100216-from-vibe-coding-to-viable-code-with-spec-driven-development) - [What non-automotive Machine Learning projects can learn from automotive Machine Learning projects](https://www.wearedevelopers.com/videos/397-what-non-automotive-machine-learning-projects-can-learn-from-automotive-machine-learning-projects) - [Navigating the AI Revolution in Software Development](https://www.wearedevelopers.com/videos/1266-navigating-the-ai-revolution-in-software-development) ## Related Articles - [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer) - [What Are Large Language Models?](https://www.wearedevelopers.com/magazine/304-what-are-large-language-models) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers)