Technical Exploitation Capability Developer

HM Revenue and Customs

Apply before 11:55 pm on Thursday 21st October 2021


Reference number



£37,606 - £40,911
Plus a Flexibility payment


Higher Executive Officer

Contract type


Business area

HMRC - CCG - Fraud Investigation Service - Digital Support & Innovation – Cyber & Digital Forensics

Type of role


Working pattern

Flexible working, Full-time, Job share, Part-time, Compressed Hours, Part Year

Number of posts



Stratford, London, E20 1EL

About the job


At HMRC we are committed to creating a great place to work for all our colleagues; an inclusive and respectful environment that reflects the diversity of the society we serve.

We want to maximise the potential of everyone who chooses to work for us and we offer a range of flexible working patterns and support to make a fulfilling career at HMRC accessible to you.

Diverse perspectives and experiences are critical to our success and we welcome applications from all people from all backgrounds with the experience and skills needed to perform this role.

HMRC is the UK’s tax, payments and customs authority and we have a vital purpose: we collect the money that pays for the UK’s public services and help families and individuals with targeted financial support.

Digital Support and Innovation (DSI) sits within HMRC’s wider Fraud Investigation Service (FIS) responsible for the department’s civil and criminal investigation work. FIS ensures that HMRC has an effective approach to taking on the most serious tax evasion and fraud.

Working across Law Enforcement and government, DSI provides investigative tools and covert techniques to front-line investigations and works with key partners to develop and provide access to new technology and systems to enable investigators to respond to serious and complex tax evasion and crime.

The technical exploitation developer in Capability Development - Targeted Equipment Interference (TEI) plays an integral role in Her Majesty's Government's fight against serious and organised crime, supporting investigations totalling hundreds of millions of pounds each year.

The team manages a diverse and rapidly increasing project portfolio, ranging from developing covert tools for mobile device data acquisition, building custom radio frequency hardware, to the implementation of cutting edge data visualisation platforms.

Job description

As an experienced developer, you will deliver all aspects of research and exploitation development, in order to collect and develop intelligence in a proactive operationally driven environment. The role is ideal for candidates who enjoy problem solving and are driven to overcome complex technical challenges to produce solutions that enhance our sensitive capabilities.


1. Carry out research and development of new equipment, tools and techniques to counter the threat, risk and harm posed by serious organised criminals.

2. Conduct reverse engineering of digital media to facilitate access and acquire data to an evidential standard.

3. Perform routine maintenance and testing of existing tools.

4. Collaborate as part of a team to design components for larger systems.

5. Provide guidance, technical operational support and training in the installation and use of developed tools and techniques for deployment by investigation officers.

6. Ensure all work is carried out within the requirements of the legal framework to be compliant in the law enforcement and legislative process.

7. Build relationships and collaborate with external partners, private industry and academia.

Essential Criteria:
• Proven ability to successfully develop computer software and have an understanding of the software development lifecycle. Must be able to demonstrate identifying user requirements, ability to design software, write secure code and implement testing methods.

Experience in one or more of the following languages:
• Python, Go, Rust, Java, C, Objective-C, C++
• Web Development: JavaScript, Node.js, React

And experience in at least one of the following technologies:
• Database: MongoDB, MySQL, PostgreSQL, SQLite
• Mobile application development: Android Studio
• Virtualisation: Docker, VMWare
• Automation and testing: Ansible, Chef, Jenkins, Terraform, Travis CI
• Logging and Visualisation: Elastic, Graylog, Splunk
• Reverse Engineering: IDA Pro, Ghidra, WinHex

• Experience in the use of Linux, OS X and Windows operating systems.

• Proven ability to work in a secure environment with the highest standards of integrity; able to recognise sensitive information and always maintain discretion and confidentiality.

• Proven ability to work on own initiative and experience of working effectively within a team.

• Demonstrate an understanding of relevant legislation including CPIA, Police Act, RIPA and Investigatory Powers Act.

This post requires National Security Vetting at Developed Vetting (DV) clearance level and you must hold DV vetting or be willing to apply for DV vetting.

Desirable Criteria:
Ideally, you will also have experience in one or more of the following:
• Android and iOS app development
• Development of software running on Arduino and Raspberry Pi microcomputers
• Experience of data and log analysis
• Experience in any of the following:
• Cryptography – distributed tools including Hashcat
• Geo mapping systems
• Radio Frequency (RF)
• 3D design, modelling and printing


STEM degree or degree-level qualification, and/or at least 2 years’ practical experience in a technical environment. Must be able to demonstrate up-to-date knowledge of relevant research and development methodologies, tools and techniques.
Qualifications and certifications held may include (but not limited to): MSc, BSc, GIAC, OSCP, OSWP, CCMP, CCLO, CCPA, A+, Security+, Network+, MCP and CWSA.


We'll assess you against these behaviours during the selection process:

  • Delivering at Pace
  • Developing Self and Others
  • Managing a Quality Service

Technical skills

We'll assess you against these technical skills during the selection process:

  • 10 minute presentation at interview


• Learning and development tailored to your role
• An environment with flexible working options
• A culture encouraging inclusion and diversity
• A Civil Service pension
• Flexibility Payment

This post attracts a Level 2 Flexibility Payment (FP) that is paid monthly with salary. This FP allows HMRC flexibility to change your work pattern, at short notice, to meet business needs. You will be expected to work longer hours from time to time, at weekends and outside your normal working hours/days (including bank holidays).
In applying for a position and accepting the FP you agree that you can and will meet those flexibility requirements.
Details of the Flexibility Payment can be found in the attached document.

Team members that are moving offices as a result of the Locations Programme will be entitled to a Moves Adjustment Payment for three years where they incur additional costs. This is calculated based on the difference between the costs of travelling to and from the new and old office, over a weekly period. You will get more detail on this as part of targeted locations move communications.

Find more about HMRC benefits in 'Your little extras booklet' for further information

Things you need to know


Successful candidates must pass a disclosure and barring security check.
Successful candidates must meet the security requirements before they can be appointed. The level of security needed is developed vetting.

See our vetting charter.
People working with government assets must complete basic personnel security standard checks.

Selection process details

This vacancy is using Success Profiles, and will assess your Behaviours, Strengths, Experience and Technical skills.
As part of the application process, you will be asked to provide:

1. A CV, setting out your career history, with key responsibilities and achievements. Please ensure you have provided reasons for any significant gaps in employment history within the last two years;

2. A personal statement (no more than 750 words), providing examples of how you consider your technical and personal skills, qualities and experience define your suitability for the role. Examples should include the Behaviours: Delivering at Pace, Developing Self & Others, and Managing a Quality Service.
It is crucial that you provide particular reference to the essential criteria set out in the person specification. Please note that the personal statement is an important part of your application and is as much the means by which you will be assessed as your CV.

A sift will be undertaken on the CV, Personal Statement and Behaviours. Candidates who are successful at sift will be selected for formal interview and further tested against experience, Behaviours, Strengths and Technical skills.

These questions will be based on the essential/desirable criteria that are detailed in the advert. We will test your technical skills by way of a 10 minute presentation delivered at interview. The presentation brief will be sent out to those invited for interview.

You will need to complete a 6 months Training and Assessment Period (TAP). Document attached.

Sift and Interview will take place within 5 weeks of advert closing date. Location to be confirmed. Due to Covid 19, interviews may be held by video.

HMRC are an equal opportunity employer and value diversity at our company. HMRC do not discriminate on the basis of race, religion, colour, national origin, sex, gender, gender expression, sexual orientation, age, marital status, veteran status, or disability status. HMRC will ensure that individuals with disabilities are provided reasonable adjustments to participate in the job application or interview process.

Please take extra care to tick the correct boxes in the eligibility sections of your application form. We understand mistakes sometimes happen but if you contact us later than 48hours before the vacancy closes, we will not be able to reopen your application for you. The inbox to contact is: Use subject line to insert appropriate wording eg. Please re-open my application - 144548 & vacancy closing date 21.10.2021.

Security Update

If you are successful and transferring from another Government Department, we will carry out a check of your identity, nationality, and immigration status (including the right to work in the UK) and a criminal record check before confirming your appointment.

Successful candidates must pass a Disclosure and Barring Security Check. Please note that HMRC have an exemption under the Rehabilitation of Offenders Act 1974, which enables us to make enquiries about both unspent and spent convictions.

In order to process applications without delay, we will be sending a Criminal Record Check to Disclosure and Barring Service on your behalf. However, we recognise in exceptional circumstances some candidates will want to send their completed forms direct. If you will be doing this, please advise Government Recruitment Service of your intention by emailing stating the job reference number in the subject heading.

Applicants who are successful at interview will be, as part of pre-employment screening, subject to a check on the Internal Fraud Database (IFD). This check will provide information about employees who have been dismissed for fraud or dishonesty offences. This check also applies to employees who resign or otherwise leave before being dismissed for fraud or dishonesty had their employment continued. Any applicant’s details held on the IFD will be refused employment.

Please note: in addition to the standard pre-employment checks for appointment into the Civil Service, all candidates must also obtain National Security Vetting at Developed Vetting (DV) clearance level for this vacancy. You will normally need to meet the minimum UK residency period as determined by the level of vetting being undertaken, which for DV is 10 years UK residency prior to your vetting application. If you have any questions about this residency requirement, please speak to the vacancy holder for this post.

A candidate is not eligible to apply for a role within the Civil Service if the application is made within a 5 year period following a dismissal for carrying out internal fraud against government.

All applicants will be required to declare any past convictions, criminal findings, or police cautions, regardless of whether they are ‘spent’. You must also declare any disciplinary proceedings relating to previous employments. The disclosure of this information will not automatically disbar you from employment with FIS, but we need to be aware of any event or issue which could impinge on your credibility if questioned in court.

FIS may conduct background checks and any offer will be withdrawn if you fail to disclose any relevant material that causes

Appointment will be conditional upon satisfactory conduct and discipline checks and security vetting.

HMRC transformation

HM Revenue and Customs is currently going through an exciting ten-year transformation programme to create a tax authority fit for the future. As part of this, we are committed to providing high-quality jobs and giving employees a great place to work, whichever location you work from.

HM Revenue and Customs has made significant progress with its plans to locate in 13 large, modern, flexible offices, equipped with high-speed digital infrastructure supporting improved customer service and compliance activity. These collaborative workspaces will enable smarter working and great training and development facilities, allowing for the sharing of expertise, local training, promotion, and provide great ongoing career development opportunities.

These offices will be located in central locations in the following towns and cities close to accessible transport links: Glasgow, Edinburgh, Belfast, Newcastle, Leeds, Liverpool, Manchester, Nottingham, Birmingham, Bristol, Cardiff, Croydon and Stratford. Our Regional Centres in Croydon, Bristol and Belfast are already operational.

In addition, there will also be a small number of specialist sites where the work cannot be done anywhere else, in Gartcosh (near Glasgow), Telford, Ipswich, Worthing and Dover, as well as our headquarters in central London. What’s more, our Welsh language service has people located in Porthmadog, as well as Cardiff.

We are letting you know about our future plans because if you are recruited into an office that is not one of these locations, you will be expected, subject to HM Revenue and Customs applicable policies, to move to one of these locations in the future. In some cases, this will be via one of our nine transitional sites.

If you are not a current civil servant, you will not be eligible for financial assistance for your move to the regional centre or a transitional or specialist site.

If you are a current HM Revenue and Customs employee and you joined us through an advert that was advertised on or after 11/01/2017, you will not be eligible for financial assistance for your move to a regional centre, a transitional site or a specialist one. This is in line with the terms of your original appointment to HM Revenue and Customs.

For more information please contact the vacancy holder.

Terms and Conditions

We really hope you decide to apply for this role. If you’re successful you need to know that in February 2021 members of recognised trade unions (ARC and PCS) voted to approve a pay and contract reform offer. This means that HMRC will adopt new terms and conditions for all colleagues as part of a multi-year pay deal and contract offer, the pay deal period is 01 June 2020 – 31st May 2023 and terms and conditions changes take place from the 01 June 2021 onwards. These terms will apply to colleagues who already work in HMRC and if you join us, it will apply to you too. We’ve put together a summary of the key changes that will be made and you can find this attached to the Job Advert.


If you are currently working for an OGD and would like to consider the impact on your pay when joining HMRC, please see the attached document "Pay on Transfer from OGD" for further information.

New entrants are expected to join on the minimum of the pay band.

Further Information

Candidates must live within reasonable daily travel, which is usually an hour each way.

Customer facing roles in HMRC require the ability to converse at ease with members of the public and provide advice in accurate spoken English and/or Welsh where required. Where this is an essential requirement this will be tested as part of the selection process.

A reserve list may be held for a period of 6 months from which further appointments can be made.

Any move to HMRC from another employer will mean you can no longer access childcare vouchers. This includes moves between government departments. You may however be eligible for other government schemes, including Tax Free Childcare. Determine your eligibility here

HMRC welcomes applications from those who need to work a more flexible arrangement and will agree to requests where possible, taking into account our operational and customer service needs. We can’t guarantee that we can meet all requests to work flexibly, as agreement will be subject to business ability to accommodate, and any request to work a more flexible arrangement should be made prior to your acceptance of the provisional offer.

If you are experiencing accessibility problems with any attachments on this advert, please contact the email address in the 'Contact point for applicants' section.

Reasonable adjustment

We want to make sure no one is put at a disadvantage during our recruitment process because of a disability, condition or impairment. To assist you with this, we will reduce or remove any barriers where possible and provide additional support where appropriate. Please see our Disability Matters: How we can support you during our selection process booklet for more details.

If you need a change to be made so that you can make your application, you should:

• Contact Government Recruitment Service via as soon as possible before the closing date to discuss your needs.
• Complete the “Assistance required” section in the “Additional requirements” page of your application form to tell us what changes or help you might need further on in the recruitment process. For instance, you may need wheelchair access at interview, or if you’re deaf, a Language Service Professional.

Feedback will only be provided if you attend an interview or assessment.

Nationality requirements

Open to UK nationals only.

Working for the Civil Service

The Civil Service Code sets out the standards of behaviour expected of civil servants.

We recruit by merit on the basis of fair and open competition, as outlined in the Civil Service Commission's recruitment principles.
The Civil Service embraces diversity and promotes equal opportunities. As such, we run a Disability Confident Scheme (DCS) for candidates with disabilities who meet the minimum selection criteria.

Apply and further information

Once this job has closed, the job advert will no longer be available. You may want to save a copy for your records.

Contact point for applicants

Job contact :
Name :  Wendy Goring
Email :
Telephone :  03000 564096
Recruitment team :
Email :

Further information

Appointment to the Civil Service is governed by the Civil Service Commission’s Recruitment Principles. You have the right to complain if you feel a department has breached the requirement of the Recruitment Principles. In the first instance, you should raise the matter directly with the department concerned. If you are not satisfied with the response, you may bring your complaint to the Commission. For further information on bringing a complaint to the Civil Service Commission please visit their web pages:

Share this page