CoreTech Security
CoreTech is a specialist cyber security company whose people are motivated by the desire to deliver exceptional capabilities coupled with a real sense of mission. Our world-class team is highly experienced, deeply technical, and blend vulnerability research, research engineering and software development skills.
Open roles at CoreTech Security
2 roles
Junior Cyber Security Researcher
CoreTech Security
Cheltenham, UK
Graduate Cybersecurity Research role focused on reverse engineering, ethical hacking, vulnerability research, and hands-on technical development with training and mentoring.CoreTech Security’s mission is to deliver high-end security research and bespoke solutions to some of the most interesting cyber security clients in the UK. In practice, this means that we have built a world-class team of vulnerability researchers, reverse engineers, and high-assurance software engineers. CoreTech is looking for talented individuals with an active interest in subjects such as reverse engineering, hardware teardown and cyber engineering to join our world-class research team. We deliver bespoke and innovative solutions which enable the operational needs of our clients. Our team is highly experienced, deeply technical and has a rich history of blending rapid prototyping, security research and software engineering skills. Our Operational Research team use a blend of technical skillsets, state of the art tooling and creative innovation to achieve the best results for our clients. This role requires an inquisitive mindset and enthusiasm for solving difficult research tasks. CoreTech AcademyAs a CoreTech graduate you will be enrolled on the CoreTech Academy where you’ll be provided with the opportunity to rapidly skill up in bug hunting and reverse engineering through a mix of training, mentoring and shadowing with our experienced team. The Academy also provides the opportunity to attend seminars/presentations on a whole range of subjects, presented by colleagues from across the business.Skills you may haveAn interest in how software vulnerabilities workFamiliarity with one or more high-level languages such as C, C++ or JavaExperience in basic scripting using PythonFamiliarity with the Linux OS and working in the shellParticipation in Capture the Flag (CTF) challengesA basic understanding of how computers communicate (networking)Reverse engineering using GhidraInterest in Software Defined Radios & OpenCPIEthical hacking Familiarity with Android and adb shellHardware Hacking Strong inter-personal skills and enthusiasm for working with othersCuriosity about the inner workings of technology We are looking for individuals with a passion and enthusiasm for cyber security. Ideal candidates will be able to demonstrate an active interest and foundation knowledge in several of the skills listed above. This is a Junior level role starting in September 2027 - you may be a recent graduate or someone that has some work experience and an active interest in the area of Cyber Security Research.Work BenefitsPromotions 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 aspirationsO'Reilly books subscription which provides access to huge range of technical booksRegular events including internal technical conferences, company socials and pizza-fuelled lunchtime seminars Free seasonal fruit, tea, coffee, milk, squash and hot chocolate 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 BenefitsA 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 BenefitsEnhanced 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) The Electric Car Scheme – a pre-tax salary sacrifice scheme to enable you to purchase an electric car at a saving of 30-60% on the car lease, maintenance, servicing and roadside assistance SalaryOur graduate salary for September 2026 is £38,000. We appreciate that starting work in a new location can be expensive at a time when you are just starting out on your career. To help with this, we offer:1. A zero-interest graduate loan of up to £2,000, repaid monthly during your second year of service2. If you're moving to the area, we offer financial support to cover allowable costs of relocating We will also perform 6 monthly pay reviews for your first two years and aim for our graduates to be promoted to consultant grade within two years of joining.
Posted 21 days ago
Junior Vulnerability Researcher
CoreTech Security
Cheltenham, UK
A graduate cybersecurity role focused on vulnerability research, reverse engineering, exploit development, and low-level software security, with structured training through the CoreTech Academy.CoreTech Security’s mission is to deliver high-end security research and bespoke solutions to some of the most interesting cyber security clients in the UK. In practice, this means that we have built a world-class team of vulnerability researchers, reverse engineers, and high-assurance software engineers. CoreTech is looking for talented individuals with an active interest in low-level software vulnerability research and reverse engineering. In practice this means you will be familiar with native languages (e.g. C/C++), and ideally have some understanding of how computer programs are loaded and executed on Linux-based platforms. You need to be interested in how hackers achieve code execution and privilege escalation and keen to learn the dark arts of exploit development alongside our world-class research team. Our primary focus is conducting offensive security research against mobile operating systems and other embedded devices such as routers and CCTV cameras. Our research team use Ghidra as our tool of choice for reverse engineering and produce proof of concepts in the most suitable language for the project which could be C, C++, Python or assembly code. The role requires an inquisitive mindset, persistence and enthusiasm for solving difficult research tasks. Knowledge of hardware would be beneficial to this role. CoreTech AcademyAs a CoreTech Junior Consultant you will be enrolled on the CoreTech Academy where you’ll be provided with the opportunity to rapidly skill up in bug hunting and reverse engineering through a mix of training, mentoring and shadowing with our experienced team. The Academy also provides the opportunity to attend seminars/presentations on a whole range of subjects, presented by colleagues from across the business.Skills you must have:An interest in how software vulnerabilities in binaries, exploits and their mitigations work. Experience with Reverse Engineering code using architectures such as ARM/AArch64, x86 or MIPS.Familiarity with Operating System internals and working in a command shell environment.Familiarity with C and/or C++ programming.Experience in basic scripting using Python.A basic understanding of TCP/IP and networking concepts.A passion for technology and a genuine interest in solving difficult and complex problems. We are looking for candidates with a passion and enthusiasm for cyber security specifically in the field of Vulnerability Research. Ideal candidates will be able to demonstrate an active interest and foundation knowledge in several of the skills listed above. This is a Junior level role starting in September 2027 - you may be a recent graduate or someone that has some work experience and active interest in the area of Vulnerability Research.Work BenefitsPromotions are based on technical excellence and reviewed regularly 25 days holiday per year (with bank holidays on top), option to buy/sell 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 aspirationsO'Reilly books subscription which provides access to huge range of technical booksRegular events including internal technical conferences, company socials and pizza-fuelled lunchtime seminars Free seasonal fruit, tea, coffee, milk, squash and hot chocolatePrivate healthcare including access toPrivate 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 assessmentFinancial BenefitsA 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 date8% company contribution to pension with no minimum requirement for employee contribution Death in Service cover of 4x base salaryLifestyle BenefitsEnhanced 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’ serviceEnhanced cycle-to-work scheme including the ability to purchase a bike over £1,000 (e-bikes, specialist cycles and trikes allowed)SalaryOur graduate salary for September 2027 is £38,000. We appreciate that starting work in a new location can be expensive at a time when you are just starting out on your career. To help with this, we offer:1. A zero-interest graduate loan of up to £2,000, repaid monthly during your second year of service2. If you're moving to the area, we offer financial support to cover allowable costs of relocating We will also perform 6 monthly pay reviews for your first two years and aim for our graduates to be promoted to consultant grade within two years of joining.
Posted 21 days ago
Junior Cyber Security Researcher
CoreTech Security
Cheltenham, UK
Graduate Cybersecurity Research role focused on reverse engineering, ethical hacking, vulnerability research, and hands-on technical development with training and mentoring.CoreTech Security’s mission is to deliver high-end security research and bespoke solutions to some of the most interesting cyber security clients in the UK. In practice, this means that we have built a world-class team of vulnerability researchers, reverse engineers, and high-assurance software engineers. CoreTech is looking for talented individuals with an active interest in subjects such as reverse engineering, hardware teardown and cyber engineering to join our world-class research team. We deliver bespoke and innovative solutions which enable the operational needs of our clients. Our team is highly experienced, deeply technical and has a rich history of blending rapid prototyping, security research and software engineering skills. Our Operational Research team use a blend of technical skillsets, state of the art tooling and creative innovation to achieve the best results for our clients. This role requires an inquisitive mindset and enthusiasm for solving difficult research tasks. CoreTech AcademyAs a CoreTech graduate you will be enrolled on the CoreTech Academy where you’ll be provided with the opportunity to rapidly skill up in bug hunting and reverse engineering through a mix of training, mentoring and shadowing with our experienced team. The Academy also provides the opportunity to attend seminars/presentations on a whole range of subjects, presented by colleagues from across the business.Skills you may haveAn interest in how software vulnerabilities workFamiliarity with one or more high-level languages such as C, C++ or JavaExperience in basic scripting using PythonFamiliarity with the Linux OS and working in the shellParticipation in Capture the Flag (CTF) challengesA basic understanding of how computers communicate (networking)Reverse engineering using GhidraInterest in Software Defined Radios & OpenCPIEthical hacking Familiarity with Android and adb shellHardware Hacking Strong inter-personal skills and enthusiasm for working with othersCuriosity about the inner workings of technology We are looking for individuals with a passion and enthusiasm for cyber security. Ideal candidates will be able to demonstrate an active interest and foundation knowledge in several of the skills listed above. This is a Junior level role starting in September 2027 - you may be a recent graduate or someone that has some work experience and an active interest in the area of Cyber Security Research.Work BenefitsPromotions 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 aspirationsO'Reilly books subscription which provides access to huge range of technical booksRegular events including internal technical conferences, company socials and pizza-fuelled lunchtime seminars Free seasonal fruit, tea, coffee, milk, squash and hot chocolate 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 BenefitsA 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 BenefitsEnhanced 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) The Electric Car Scheme – a pre-tax salary sacrifice scheme to enable you to purchase an electric car at a saving of 30-60% on the car lease, maintenance, servicing and roadside assistance SalaryOur graduate salary for September 2026 is £38,000. We appreciate that starting work in a new location can be expensive at a time when you are just starting out on your career. To help with this, we offer:1. A zero-interest graduate loan of up to £2,000, repaid monthly during your second year of service2. If you're moving to the area, we offer financial support to cover allowable costs of relocating We will also perform 6 monthly pay reviews for your first two years and aim for our graduates to be promoted to consultant grade within two years of joining.
Posted 21 days ago
Junior Vulnerability Researcher
CoreTech Security
Cheltenham, UK
A graduate cybersecurity role focused on vulnerability research, reverse engineering, exploit development, and low-level software security, with structured training through the CoreTech Academy.CoreTech Security’s mission is to deliver high-end security research and bespoke solutions to some of the most interesting cyber security clients in the UK. In practice, this means that we have built a world-class team of vulnerability researchers, reverse engineers, and high-assurance software engineers. CoreTech is looking for talented individuals with an active interest in low-level software vulnerability research and reverse engineering. In practice this means you will be familiar with native languages (e.g. C/C++), and ideally have some understanding of how computer programs are loaded and executed on Linux-based platforms. You need to be interested in how hackers achieve code execution and privilege escalation and keen to learn the dark arts of exploit development alongside our world-class research team. Our primary focus is conducting offensive security research against mobile operating systems and other embedded devices such as routers and CCTV cameras. Our research team use Ghidra as our tool of choice for reverse engineering and produce proof of concepts in the most suitable language for the project which could be C, C++, Python or assembly code. The role requires an inquisitive mindset, persistence and enthusiasm for solving difficult research tasks. Knowledge of hardware would be beneficial to this role. CoreTech AcademyAs a CoreTech Junior Consultant you will be enrolled on the CoreTech Academy where you’ll be provided with the opportunity to rapidly skill up in bug hunting and reverse engineering through a mix of training, mentoring and shadowing with our experienced team. The Academy also provides the opportunity to attend seminars/presentations on a whole range of subjects, presented by colleagues from across the business.Skills you must have:An interest in how software vulnerabilities in binaries, exploits and their mitigations work. Experience with Reverse Engineering code using architectures such as ARM/AArch64, x86 or MIPS.Familiarity with Operating System internals and working in a command shell environment.Familiarity with C and/or C++ programming.Experience in basic scripting using Python.A basic understanding of TCP/IP and networking concepts.A passion for technology and a genuine interest in solving difficult and complex problems. We are looking for candidates with a passion and enthusiasm for cyber security specifically in the field of Vulnerability Research. Ideal candidates will be able to demonstrate an active interest and foundation knowledge in several of the skills listed above. This is a Junior level role starting in September 2027 - you may be a recent graduate or someone that has some work experience and active interest in the area of Vulnerability Research.Work BenefitsPromotions are based on technical excellence and reviewed regularly 25 days holiday per year (with bank holidays on top), option to buy/sell 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 aspirationsO'Reilly books subscription which provides access to huge range of technical booksRegular events including internal technical conferences, company socials and pizza-fuelled lunchtime seminars Free seasonal fruit, tea, coffee, milk, squash and hot chocolatePrivate healthcare including access toPrivate 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 assessmentFinancial BenefitsA 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 date8% company contribution to pension with no minimum requirement for employee contribution Death in Service cover of 4x base salaryLifestyle BenefitsEnhanced 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’ serviceEnhanced cycle-to-work scheme including the ability to purchase a bike over £1,000 (e-bikes, specialist cycles and trikes allowed)SalaryOur graduate salary for September 2027 is £38,000. We appreciate that starting work in a new location can be expensive at a time when you are just starting out on your career. To help with this, we offer:1. A zero-interest graduate loan of up to £2,000, repaid monthly during your second year of service2. If you're moving to the area, we offer financial support to cover allowable costs of relocating We will also perform 6 monthly pay reviews for your first two years and aim for our graduates to be promoted to consultant grade within two years of joining.
Posted 21 days ago
STAY IN
THE KN
W
No spam, just the latest roles and career advice delivered straight to your inbox.
© Gradworx 2026