Skip to main content

CoreTech Security Services

Cyber Security Researcher

Cheltenham, England, United Kingdom

Location
Cheltenham, England, United Kingdom
Work
On-site
Employment
Full-time
Level
Not stated
Function
Security
Pay
Not stated
Posted
41 months ago

Pay and the market here

10 security jobs open in Cheltenham: 20% remote, 3 posted in the last 30 days.

Wondering how well you fit this one? OptiTalent Career checks each requirement against your own record, privately. About OptiTalent Career →

About the role

CoreTech is looking for candidates with a STEM background, which may also include experience of research, cyber security or ethical hacking, to join our team. Our team is highly experienced, deeply technical and passionate about delivering quality solutions that blend rapid development, security research and software engineering skills.

Our Research team uses a wide range of tools, programming languages and emerging technologies to develop rapid prototypes, minimal viable products and world-class research that has meaningful real-world impact. The work is conducted in a fast-paced and dynamic environment, which results in solutions to some of the most complex cyber security challenges faced by the UK. This means no two days are the same and project requirements can quickly change based on your experience, understanding and input.

We are looking for skills in a variety of technologies, but experience with C, C++, Python, operating system internals, embedded systems, network packet analysis or machine learning would be advantageous. Equally, the role requires an inquisitive mindset, persistence, and enthusiasm for solving difficult research tasks, which can often appeal to those with a technologist, scientific or mathematical background.

As part of our team, you will

  • Work alongside hugely talented and respected researchers, vulnerability researchers and software engineers.
  • Tackle a wide range of challenging problems using various technologies.
  • Conduct cutting-edge, novel and world-leading research.
  • Design and produce niche solutions with immediate real-world impact.
  • Use your skills and experience to propose new ways of doing things.
  • Continually learn new skills and technologies.

An ideal candidate will

  • Have a passion for cyber security and/or technology.
  • Thrive on solving difficult and complex problems.
  • Have a genuine interest in how technology works and how it can be applied in different ways.
  • Enjoy sharing their knowledge and working with team members.
  • Work with various technologies and programming languages, with uncertain outcomes, to achieve something new.

Your Experience

  • Reverse engineering in IDA Pro or Ghidra.
  • Familiarity with Wireshark or other network packet analysis tooling.
  • Ethical hacking.
  • Network and protocol analysis.
  • Hardware debugging (UART, JTAG, SWD).
  • Knowledge of exploitation techniques and mitigations.
  • Experience and knowledge of operating system internals, including Linux, Windows and embedded systems.
  • Experience and knowledge of Android or iOS, and its internals.
  • Familiarity with C, C++ or Python.
  • RF technologies and Software Defined Radio.
  • An inquisitive nature.
  • Problem solver.

We are recruiting at all grades from consultants through to highly experienced principal consultants. This vacancy is aimed at our consultant, through to our Senior level grades

Work Benefits

  • Promotions are based on technical excellence and reviewed regularly
  • 25 days holiday per year (with bank holidays on top), option to buy up to 5 days per year
  • Level up with an extra day of holiday per year, up to an extra 5 days, starting from 2 years' service
  • We offer financial support to cover HMRC allowable costs of relocating if you’re moving to the area
  • Training and development opportunities to support your career aspirations
  • O'Reilly books subscription which provides access to huge range of technical books
  • Regular events including internal technical conferences, company socials and pizza-fuelled lunchtime seminars
  • Free seasonal fruit, tea, coffee, milk, squash and hot chocolate

Health Benefits - Private medical including access to

  • Private online GP, and a helpline to speak with various healthcare professionals.
  • Physiotherapists, osteopaths or chiropractors for muscle, bone, and joint pain.
  • Mental health - counselling, and specialist consultations and treatment with psychologists and cognitive behavioural therapists.
  • Annual Health assessment.

Financial Benefits

  • A company bonus scheme so that everybody is rewarded for company success. This is an annual award that is based on the company hitting its targeted forecast. We have achieved this every year to date.
  • 8% company contribution to pension with no minimum requirement for employee contribution.
  • Death in Service cover of 4x base salary.

Lifestyle Benefits

  • Enhanced maternity/paternity/adoption leave: 12 weeks maternity leave at full pay as soon as you join, further enhanced to 20 weeks full pay from 2 years’ service. 2 weeks paternity leave at full pay as soon as you join, further enhanced to 4 weeks full pay from 2 years’ service.
  • Enhanced cycle-to-work scheme including the ability to purchase a bike over £1,000 (e-bikes, specialist cycles and trikes allowed).

Salary

We are recruiting staff at all levels in this team, and are able to support market-leading salaries for every grade within our sector/location. We reward staff based on technical excellence and not years of experience, so it's important to us to speak with you to see which grade you would fit into - it's not always obvious from a CV! Your interviewer will spend time during your first interview speaking with you about how your skills and experience map against our grades, and discuss a salary band so that you know early what you can expect if you receive an offer from us. The technical interview will provide a deeper assessment of your skills against your mapped grade which ultimately determines whether you receive an offer and the exact salary.

Location

We are based in the centre of Cheltenham in a stunning new build contemporary office, 5 minutes walk from the local shops and cafes.

Additional Details

Our interview process is quick and to the point: if you look like a good fit for the role, we'll schedule a brief call to discuss it in more detail and answer any questions you may have. If that goes well, we'll arrange a technical interview to understand your level of experience. We aim to get back to you with an answer within a couple of days of the technical interview.

Please note, due to sensitivity of the role, successful applicants must be British Citizens and willing to undergo extensive background checks to obtain a security clearance.

If you’re looking for a challenging role where you can make a real impact in the world, in a friendly environment and with all the support to advance your career, click apply.

Source

Posted by CoreTech Security Services on their own hiring page, jobs.eu.lever.co. OptiTalent shows it as published, read 07 Nov 2026 11:47 UTC; the original is the reference.

View the original ad ↗

More at CoreTech Security Services

  • CoreTech Security Services · Cheltenham, England, United Kingdom

    On-siteFull-timeSenior£33K – £39K a yearFinance

    Here at CoreTech we continue to grow, and growth like ours creates opportunity. We're looking for an experienced Senior Finance Administrator to take real ownership within our Operations team – not just to keep the finance function running, but to help shape what it becomes as…

  • CoreTech Security Services · Cheltenham, England, United Kingdom

    On-siteFull-timeEngineering

    Our Software Engineering team develops bespoke capabilities for clients in the Cyber Security domain. We may be building assured products that prioritise engineering rigour and reliability, rapid solutions that bring together existing tooling for high-impact results, or blended…

  • CoreTech Security Services · Cheltenham, England, United Kingdom

    On-siteFull-timeLead / staffEngineering

    Our Software Engineering team develops bespoke capabilities for clients in the Cyber Security domain. We may be building assured products that prioritise engineering rigour and reliability, rapid solutions that bring together existing tooling for high-impact results, or blended…

  • CoreTech Security Services · Salisbury, United Kingdom

    HybridFull-timeSeniorSecurity

    Working for CoreTech as a vulnerability researcher will see you join a world-class team of developers and vulnerability researchers whose mission is to deliver bespoke products and research into the most interesting cyber security clients in the UK.