GCHQ (Government Communications Headquarters) is a Government security agency focused on gaining intelligence about threats through communication, especially online.
The history of the modern GCHQ began in naval and military signals during World War One, and the organisation started as the Government Code and Cypher School (GC&CS) in 1919. With the threat of another war in 1939, GC&CS moved to Bletchley Park, and its intelligence from intercepted transmissions and codebreaking saved thousands of Allied lives. After the Second World War the organisation, by then renamed GCHQ, left Bletchley Park in 1946 and later moved to Cheltenham.
GCHQ is on a mission to keep Britain safe, by protecting our forces, preventing terrorism and crime, and shielding against cyber attacks.
Careers At GCHQ
GCHQ is one of the UK's intelligence agencies, alongside MI5 and MI6. Much of its work is secret, but its careers pages explain what it is like to work there and the kinds of roles available.
GCHQ's headquarters is in Cheltenham, and its other sites are in Bude, Scarborough, Manchester and London.
GCHQ does not only employ mathematicians and analysts. It recruits people from many backgrounds into areas including:
- Analysis
- Applied Research
- Computer Network Operations
- Engineering
- Information Assurance
- IT Services
- Languages
- Mathematics and Cryptography
- Project Management
- Corporate roles such as Human Resources, Legal Services, Information Management and Communications
There are routes in for people at different stages. Some people start as apprentices, some join through analyst or leadership development schemes, and students can apply for summer placements, many of which are paid. Experienced professionals can also apply directly.
How To Get Hired At GCHQ
There are a few basic requirements that must be met before you can be considered for a position at GCHQ. You must be a British citizen (dual nationals are considered) and will usually need to have lived in the UK for seven of the last ten years. You can apply from age 17. Education requirements are set in each job advert, and there are routes in through apprenticeships, degree-level roles and development schemes. All staff need Developed Vetting, which covers your finances, health, relationships and any drug use.
GCHQ says it needs people from all walks of life and the right mix of minds to meet future challenges.
GCHQ Application Process
GCHQ publishes the main stages of its application process and gives candidates prompts at stages throughout.
GCHQ has a robust candidate screening process because of the nature of the work, which means that it can take a while between stages before you will find out whether you have been successful or not.
GCHQ Online Application
The first stage is to register your details in the candidate profile. Basic contact information should be included here, as well as details about your qualifications and experience.
Some vetting information is also taken at this stage, such as details of your immediate family.
You then complete an online application form, and you could be asked to complete an online test. GCHQ does not publish which tests it uses, so practise the common formats below. If you meet its requirements you are invited to an interview or assessment centre.
Aptitude Test Practice For GCHQ
Verbal Reasoning Practice
Verbal reasoning tests assess your ability to quickly read, understand and analyse the information given in text form.
You are usually given a paragraph of text, often in formal or business language, and asked a question based on that information. You need to pick the right answer from a multiple-choice selection.
While the language content of the text might be complicated, there is no need to guess or use previous knowledge, because the information is in the paragraph. The time pressure and test conditions are what make questions like this difficult, but with practice you can improve your performance.
Numerical Reasoning Practice
Despite the name, numerical reasoning tests are not so much a test of your mathematical ability as an assessment of the way you can manipulate data provided in different formats.
In a numerical reasoning assessment, you will be provided with figures in a chart, table, or graph. There will be a question about this data, which needs a calculation to work out, usually basic maths like multiplication, addition, subtraction or division. You will need to have a working knowledge of percentages, ratios and fractions, but in most cases, you won't need a maths degree to be successful.
These tests are usually multiple choice and timed.
Logical Reasoning Practice
Logical reasoning assessments are a test of the way you can solve a problem using logic. They can be presented in several ways, but are usually presented as two related sentences, with a conclusion based on the information in the sentences. You have to decide if this conclusion follows, or does not follow.
This assessment needs no prior knowledge, as the information is provided in the question.
Diagrammatic Reasoning Practice
The diagrammatic reasoning assessment is testing your ability to make decisions based on limited and unfamiliar information.
Presented with a series of images, you will need to select the missing image in the sequence from the multiple-choice answers. To be successful, you will need to quickly and accurately assess the sequence to discover the pattern that links the images, and then use that information to choose the right answer.
Personality Questionnaires
Personality tests are designed to measure an individual in terms of their work behaviour and personality traits.
As pre-screening tests for employment, personality tests are used to determine whether you match an 'ideal candidate' persona for the role you have applied for. This is determined by the organisation that you have applied for and means that in these assessments there are no right or wrong answers.
Most personality tests need you to be self-aware, as you will be presented with a number of statements and decide how well each one describes you. They are usually untimed, but should be answered as honestly as possible, which means you need to give the first answer that comes to you rather than trying to guess what the employer wants to hear.
GCHQ Interview
Your interview may be by telephone, video call or face to face, and depending on the role there may be more than one.
In the interview, you will be asked questions about your qualifications, experience, and skills as presented in your initial application.
You will be asked some competency-based questions too, where you will be expected to provide examples that demonstrate your competency. GCHQ assesses candidates against three competency themes, Future, People and Delivery, which focus on behaviours rather than knowledge. Expect around five to ten minutes per question, with follow-up probing questions, and use the STAR structure with "I" rather than "we".
GCHQ Vetting
An important part of the application process is to pass a strict vetting process. This means you will need to fill out an extensive questionnaire about your family, friends, and interests so they can be checked. You may be asked to take a drug test, and the checks cover your health and finances.
Vetting can take a long time, so this is where applicants need to be patient. These checks are essential to maintaining the security and integrity of the organisation, so honesty matters most. Holding back or playing down information can lead to your clearance being refused.
Tips To Get Hired At GCHQ
Demonstrate Interest And Willingness
GCHQ wants to hire the brightest and best people who really want to make a difference in protecting our forces, and Britain as a whole.
Throughout the interview process, make sure that you have done the research, know what is expected of you, and be willing to take on the challenges set.
Be Prepared for Vetting
Vetting is an essential part of the application process, and you need to make sure that you have all the information to hand that is needed for filling out the questionnaire. This includes personal details about family and friends, as well as your medical history and financial background.
Practise Aptitude Tests
Aptitude tests are difficult because they are unfamiliar, timed, and put candidates under pressure. Practice helps you get used to the formats and the timing. If you are told which tests you will face, practise those formats so that you know what to expect.
Be Adaptable
Being able to adapt to change is a useful quality in any role, and it can come up in interview questions.
Be prepared for anything by doing adequate research, and have examples of key competencies and skills ready for the interview.
Demonstrate Team Work In Public Service
GCHQ's competency themes include People, so have examples ready of working well with others. If you are early in your career, volunteering or helping to run a charity event can give you good examples.
