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Faculty

Senior Software Engineer

Faculty is hiring a Senior Software Engineer in London, United Kingdom. Level rates it ; you can apply on Faculty.

Level's read on this job

  • On Level's scale, this software engineer role is Builds AI ●●●●: the job is building AI systems.
  • The posting mentions Python, Machine learning and AI safety among its tools and skills.
  • Level classes it as a senior role.
  • Faculty has 85 other open roles on Level.

AI in this role

Design, build, and deploy production-grade AI systems and scalable ML infrastructure for life sciences.

pythonmachine-learning
ai-safety

Why Faculty?


We established Faculty in 2014 because we thought that AI would be the most important technology of our time. Since then, we’ve worked with over 350 global customers to transform their performance through human-centric AI. You can read about our real-world impact here.

We don’t chase hype cycles. We innovate, build and deploy responsible AI which moves the needle - and we know a thing or two about doing it well. We bring an unparalleled depth of technical, product and delivery expertise to our clients who span government, finance, retail, energy, life sciences and defence.

Our business, and reputation, is growing fast and we’re always on the lookout for individuals who share our intellectual curiosity and desire to build a positive legacy through technology.

AI is an epoch-defining technology, join a company where you’ll be empowered to envision its most powerful applications, and to make them happen.

About the Team

Bringing medicine to patients is complex, expensive and high-risk. Faculty’s Life Science’s team is concentrated on building AI solutions which optimise the research and commercialisation of life-changing therapies.

We partner with major pharma firms, academic research centres and MedTech start-ups to design and deliver solutions which address critical healthcare challenges, and help to democratise health for all.

About the role:

As a Senior Software Engineer, we’ll look to you to lead development and deployment of cutting-edge AI and software systems for our diverse clients. You’ll design, build, and deploy scalable, production-grade ML/software and infrastructure that meets rigorous operational and ethical standards.

This is an ambitious, cross-functional role requiring a blend of technical expertise and confident client-facing skills.

What you'll be doing:

  • Leading technical scoping and architectural decisions for high-impact ML and software systems

  • Designing and building production-grade ML/software, tools, and scalable infrastructure

  • Defining and implementing best practices and standards for deploying machine learning at scale across the business

  • Collaborating with engineers, data scientists, product managers, and commercial teams to solve critical client challenges and leverage opportunities

  • Acting as a trusted technical advisor to customers and partners, translating complex concepts into actionable strategies

  • Mentoring and developing junior engineers, actively shaping our team's engineering culture and technical depth

Who we're looking for:

  • You possess strong software engineering skills in Python and at least one compiled or strongly-typed language (e.g. Go, Java, Rust, or TypeScript), and know how to build robust, production-grade systems.

  • You bring deep expertise in software engineering and strong Python skills, focusing on building robust, reusable systems

  • You have demonstrable hands-on experience with cloud platforms (e.g., AWS, Azure, GCP), including architecture, security, and infrastructure

  • You've extensive experience working with container and orchestration tools such at Docker & Kubernetes to build and manage applications at scale

  • You thrive in fast-paced, high-growth environments, demonstrating ownership and autonomy in driving projects to completion

  • You communicate exceptionally well, confidently guiding both technical teams and senior, non-technical stakeholders

The Interview Process

  1. Talent Team Screen (30 minutes)

  2. Pair Programming Interview (90 minutes)

  3. System Design Interview (90 minutes)

  4. Commercial Interview (60 minutes)

Our Recruitment Ethos

We aim to grow the best team - not the most similar one. We know that diversity of individuals fosters diversity of thought, and that strengthens our principle of seeking truth. And we know from experience that diverse teams deliver better work, relevant to the world in which we live. We’re united by a deep intellectual curiosity and desire to use our abilities for measurable positive impact. We strongly encourage applications from people of all backgrounds, ethnicities, genders, religions and sexual orientations.

If you don’t feel you meet all the requirements, but are excited by the role and know you bring some key strengths, please don't hesitate in applying as you might be right for this role, or other roles. We are open to conversations about part-time hours.

A note on AI: we're happy for you to use it for research and interview prep, but please don't use it to generate answers during live interviews. We also use an AI note-taker (Metaview) in interviews so interviewers can stay present (which you can opt out of just let us know,) and every application is reviewed by a human, never decided by AI.

How we rate this

Senior Software Engineer at Faculty rates 90 out of 100 for how much of the daily work is AI. That makes it Builds AI (AI Level 4 of 4). The level is about AI in the job, not seniority.

Classification

Builds AI. The job is building AI systems.

  1. ●●●● Builds AI80 to 100
  2. ●●●○ Works on AI60 to 79
  3. ●●○○ Uses AI40 to 59
  4. ●○○○ Little AI0 to 39

Levels come from how often the tools, models and workflows of the role are named in the posting itself. Read the description and count the AI tools, models and workflows it names.

Prepare for this job

Built from this posting and from similar jobs on Level.

Skills and AI tools this role asks for

AI SafetyPythonMachine learning

Also common in software engineer jobs at this level

Pay

Typical software engineer job
$167k

This posting doesn't list pay. Use the typical software engineer figure when pay comes up. See software engineer jobs

Questions you could be asked

  1. How do you think about the risk of an AI system in this kind of role failing silently?
  2. Walk me through how you've used Python in your day-to-day work.
  3. What are the limits of Machine learning that you've run into, and how did you work around them?
  4. How would you decide a model or AI system is ready to ship?
  5. Tell me about a time a model underperformed in production. How did you find out, and what did you change?

Adapt your resume

  • List these exact terms on your resume: AI Safety, Python, and Machine learning. An applicant tracking system matches the wording, not the idea.
  • Attach one line of real, concrete experience to at least one of them. A tool named with nothing behind it rarely survives a human read.
  • Lead with what you built, trained or shipped. This role is judged on the AI system itself, not the tools around it.

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