Maths and Cryptography Summer Internship at GCHQ

Internship (1-4 Months)
Application Deadline
South West
£20,536 pro rata
Role May Involve

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“My programming skills are much better now than when I came in, and I feel I have learnt far more at work than I did at uni. I was also given assistance on project ideas for my final year project…” - Read full review

- 2 reviews

Maths and Cryptography Summer Internship

A summer that adds up.

Here at GCHQ, we have a clear purpose - we want to help protect the UK. We work against cyber-attacks, terrorism and espionage. So everyone who works here, works towards that goal. But we always do it together, supporting each other every step of the way. We’re proud to collaborate, and even prouder to work with purpose.

On this nine-week summer placement, you’ll develop your mathematical skills and get an insight into how we use innovative technologies. Collaborating with other students and colleagues across GCHQ, you’ll solve challenging problems and work on vital projects that are of operational interest to us. You might be involved in programming high performance computers, assessing cryptographic algorithms, analysing complex data sets or developing new statistical tools. No matter the project, you’ll keep communications secure and help to protect the UK.

To join us on this summer placement, you must have completed at least three years of your mathematics degree and be on track to achieve a first-class honours qualification. While it’s great if you have some programming experience, it’s not a problem if you don’t. With a passion to learn and a real curiosity, we’ll teach you everything you need to know. And as a real team-player, you’ll thrive in our supportive environment and work with real purpose.
To find out more and apply, visit

About GCHQ

At GCHQ, our mission is to protect Britain from ever-evolving threats. It’s incredibly varied work as the UK’s infrastructure, businesses and way of life are constantly targeted. By gathering information and looking into communications, our organisation aims to stop this. It means you’ll have one of the most unique and interesting careers there is to offer.

As Britain faces increasingly sophisticated threats, at GCHQ, we constantly develop unique and creative solutions to stay one step ahead of adversaries. Our intelligence helps prevents terrorism, serious crime and protects Britain against cyber-attacks.

To achieve our mission, we are looking for graduates from different backgrounds with diverse skills and perspectives. Graduates who dare to think differently. No matter what your degree subject is, you could be eligible to apply to a number of areas, including intelligence analysts, technology and engineering, maths and cryptography, languages analysts, project management, finance, leadership and others.

How to apply

To apply for this role and to find out more, please click on the apply button.