Senior Machine Learning Scientist

As a Senior Machine Learning Scientist, you will lead high‑impact AI projects and shape the technical direction of bespoke solutions. This role requires hands‑on technical excellence combined with crucial team leadership. You will define data science approaches, design robust software architectures, mentor junior colleagues, and ensure delivery rigour across projects all while building deep client relationships and solidifying our reputation as a leader in practical, measurable AI.

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• Mapping the end‑to‑end data science approach and designing the associated software.
  
• Leading project teams that deliver bespoke algorithms and high‑stakes AI solutions to clients across the sector.
  
• Conceiving the core data science approach and designing the associated robust software architecture for new engagements.
  
• Mentoring a small number of data scientists and supporting the professional growth of technical team members on projects.
  
• Partnering with commercial teams to build client relationships and shape project scope for technical feasibility.
  
• Contributing to Faculty's thought leadership and reputation through delivering courses, public speaking, or open‑source projects.
  
• Ensuring best practices are followed throughout the project lifecycle to guarantee high‑quality, impactful delivery.
  

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• Senior experience in a professional data science position or a quantitative academic field.
  
• Strong programming skills with fluency in Python and core libraries (NumPy, Pandas) and a deep‑learning framework such as PyTorch.
  
• Deep expertise in core data science paradigms (supervised/unsupervised learning, NLP, validation) and ability to develop innovative algorithms.
  
• Leadership mindset focused on growing technical capabilities of the team and nurturing a collaborative culture.
  
• Commercial awareness with experience in client‑facing work and ability to translate business problems into a rigorous mathematical framework.
  
• Skilled in project planning, assessing technical feasibility, estimating delivery timelines, and leading a team to deliver high‑quality work on a strict schedule.
  
• Knowledge of responsible AI and ethical, reliable, cutting‑edge AI solutions for high‑stakes environments.
  
• Eligibility for UK Security Clearance (SC) if working with defence clients.
  
• Willingness to work between 2–4 days per week on‑site with customers, with travel across the UK; flexible to work from London office or remotely otherwise.
  

Established in 2014, Faculty has worked with over 350 global customers to transform their performance through human‑centric AI. We innovate, build and deploy responsible AI that moves the needle, and we bring unparalleled depth of technical, product and delivery expertise to clients in government, finance, retail, energy, life sciences and defence. Our business and reputation are growing fast, and we are always on the lookout for individuals who share our intellectual curiosity and desire to build a positive legacy through technology.

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• Unlimited Annual Leave Policy
  
• Private healthcare and dental
  
• Enhanced parental leave
  
• Family‑Friendly Flexibility & Flexible working
  
• Sanctus Coaching
  
• Hybrid Working (2 days in our Old Street office, London)