Maths and Cryptography Graduates

Job description

Make your maths skills count for more.

Are you a maths student or graduate looking for an exciting first step in your career? Or are you in a mathematical role and ready for a change? Do you have a passion for maths and love to learn? Are you curious about how your skills could help GCHQ protect the UK? We’ve got a variety of opportunities in our Maths and Cryptography teams, from permanent roles through to two-week insight programmes and nine-week internships.

We’re looking for people with mathematical minds to join us. Wherever you’re at in your degree, or whether you currently have experience in a maths related role, there’s an opportunity for you to get involved. And when you join, you’ll get a unique insight into the work we do, becoming part of our mission as you learn unique ways to apply your maths and cryptography skills.

What opportunities are there?

Maths and Cryptography Roles

If you have, or expect to obtain, at least a 2:2 undergraduate degree in a mathematical discipline, you could join us in a permanent role and apply your mathematical thinking to help solve an incredible range of interesting problems. You could also be working in a maths-based role at present and looking for a change in career. In a typical day you might: evaluate an existing theorem or develop a new one; use some of Europe’s most powerful computers to deliver world-class input on vital security projects; study or design a new cryptographic protocol; and complete projects which influence key decisions made by government agencies. With expert training and development opportunities, you’ll be working as a specialist in no time, producing innovative and one-of-a-kind work which has meaningful purpose.

Maths and Cryptography Insight Programme

We strive to be as inclusive and representative of society as possible, however we acknowledge that individuals who identify as women and those from ethnic minority backgrounds are currently underrepresented in our teams. That’s why we offer this programme to undergraduates from these groups. If you’re in your first year or above of a mathematics degree and have an ‘A’ in A-level maths (or equivalent), join us for two weeks and gain a unique insight into how we use maths and cryptography to keep the UK safe.

Maths and Cryptography Internship

If you’re a current undergraduate studying for your degree (Bachelors, Integrated Masters or equivalent) in mathematics, or a Joint Honours subject with mathematics as the main component, you could join us on this nine-week paid summer internship. You’ll get involved in real operational projects, working alongside, and learning from, technical experts. You’ll complete research on multiple technical projects, grow your skills and confidence, and get an idea of what a role with us could look like once you graduate.

We’re now open for applications. So, if you’re curious, why not take a look at the full details?

Discover how your maths skills could count for more and apply now.

What we are looking for

We’re looking for people with mathematical minds to join us. Wherever you’re at in your degree, or whether you currently have experience in a maths related role, there’s an opportunity for you to get involved. And when you join, you’ll get a unique insight into the work we do, becoming part of our mission as you learn unique ways to apply your maths and cryptography skills.

To be eligible to apply, you must be a British Citizen. If you hold dual nationality, of which one component is British, you will nonetheless be considered. You can apply at the age of 17 years, if successful you will not be offered a start date prior to your 18th birthday. See our website for full eligibility details.

Accepted degree subjects

• accounting and finance
• physics
• mathematics
• economics

Additional job details

How to apply

Click Apply to start your application now. This job will be available on 蘑菇视频黄片 until 27 October 2025

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Closing date:  27 October 2025