Role overview
The role**
Enhancing how we operate today will better prepare us for the challenges of tomorrow. Thats why were creating dedicated teams focused on bringing Artificial Intelligence (AI) into some of our most mission critical areas. As a Machine Learning Engineer, youll be at the heart of our efforts, working with our technical teams to design, build and operate mission-critical machine learning capabilities. This includes everything from infrastructure and MLOps through to training, fine-tuning, deployment, and live model management. While youll be hands-on in engineering, your work will also be advisory, ensuring models are reliable, scalable, and fit for use.
Day to day, youll collaborate with multidisciplinary teams of data scientists, researchers, and hosting specialists, acting as the subject-matter expert for ML deployment, reliability, and best practice. Youll be the critical bridge between research and production, making sure ideas dont stay theoretical but instead become robust, impactful systems.
A large part of your role will be leading on the technical evaluation of environments and workflows, driving innovation-led initiatives, and continuously improving how we monitor, measure, and optimise model performance. Just as importantly, youll champion model explainability, transparency, and ethical AI as core engineering principles. Across multiple projects, youll also support and mentor junior ML engineers, help software engineers design ML-ready hosting environments, and translate complex systems into a clear, practical understanding for non-technical stakeholders.
What we're looking for
Open to UK nationals only.
Interview process
Equal opportunities**
At MI6 diversity and inclusion are critical to our mission. To protect the UK, we need a truly diverse workforce that reflects the society we serve. This includes diversity in every sense of the word: those with different backgrounds, ages, ethnicities, gender identities, sexual orientations, ways of thinking and those with disabilities or neurodivergent conditions. We therefore welcome and encourage applications from everyone, including those from groups that are under-represented in our workforce such as women, those from an ethnic minority background, people with disabilities and those from low socio-economic backgrounds.
Find out more about our culture, working environment and diversity on our website.
Offer Of Interview
We are committed to providing equitable opportunities throughout the recruitment process to support candidates with disabilities. As part of this, we aim to ensure that a fair and proportionate number of disabled applicants who best meet the essential minimum criteria for this position, will be offered an interview, if it is practical for us to do so. (This is known as the Offer of an Interview.) To secure an interview for this role, the minimum criteria (in order of application process) are:
- You will be required to reach the minimum pass mark for the Situational Judgement Test which looks at your ability to problem solve. If you meet this criterion, you will be directed to complete an application form
- You have experience of creating and rigorously evaluating systems that utilise Machine Learning, operating under experienced supervision to be assessed at application sift
- Demonstrate the ability to use modern software engineering processes and an understanding of MLOps to be assessed at application sift.
- You have started to work independently under supervision, and can demonstrate an ability to turn high-level technical objectives into packages of work to undertake yourself to be assessed at application sift
There is a wide range of extra support available throughout the recruitment process to enable you to do your best, see our website for information on reasonable adjustments we can offer.
What to expect
Our recruitment process is fair, transparent, and based on merit. Here is a brief overview of each stage, in order:
- An initial online application form including pre-screening questions to ensure you meet our eligibility criteria
- Online Situational Judgement Test (SJT) rating the appropriateness of your responses to a series of short scenarios. The SJT tests criteria important for all roles in our organisation
- Application sift looking at your skills and motivation for the role and organisation
- An online HR interview focusing on motivation and competencies important to the role.
- If successful at the HR interview, you will be invited to a face to face technical assessment. (Please note the role maps to Data Scientist on the a forementioned GDDPC framework. We will assess you against this framework by asking questions about your previous projects and experiences.)
- If successful, youll receive a conditional offer of employment
Please note, you must successfully pass each stage of the process to progress to the next. Your application may take around 6 - 9 months to process including vetting, so we advise you continue any current employment until you have received your final job offer.
Before you apply
To work at MI6, you need to be a British citizen or hold dual British nationality. Read about our eligibility criteria.
This role requires the highest security clearance, known as Developed Vetting (DV). Its something everyone in the UK Intelligence Community undertakes. Find out more about the vetting process.
Please note we have a strict drugs policy, so once you start your application, you cant take any recreational drugs and youll need to declare your previous drug usage at the relevant stage.
Before you apply, we advise you to consider setting up a separate email address for your contact with us, to ensure your personal and application correspondence remain separate. Try to avoid having identifying features in your email address, such as your first and/or surname and date of birth. This is good practice and will help you to manage your application with us more securely.
The role is based in Central London, so youll need to live within a commutable distance. Please consider any financial implications and practicalities before submitting an application. An interest-free loan is available to assist with relocating into privately rented accommodation to take up the offer of employment.
We offer reasonable reimbursement of travel costs for candidates attending in-person appointments during the recruitment and vetting process. Full details will be provided with your interview or assessment invitation.
Reimbursement is discretionary and will only be made in line with the Candidate Expenses Policy, as amended from time to time. Candidates must book their own travel, using the most economical option, and provide original hardcopy receipts for reimbursement.
*Please note, you should only launch your application from within the UK. If you are based overseas, you should wait until you visit the UK to launch an application. Applying from outside the UK will impact on our ability to progress your application. You should not discuss your application, other than with your partner or a close family member.
Right to withdraw statement:**
Please be aware that we reserve the right to bring forward the closing date for this role from the original closing date once a certain number of applications have been received. Please be mindful of this and submit your application at your earliest convenience to avoid disappointment.
Feedback will only be provided if you attend an interview or assessment.