Vulnerability Researcher Intern

Hackajob Ltd; Cheltenham; On-site; GBP 31,000 - 51,000; Full time

Job summary

Hackajob Ltd in the United Kingdom is offering a paid summer 2027 internship in our research team focused on mobile and embedded technologies. Interns work in small teams to tackle real projects using C, C++, Python, and assembly for proof-of-concept work.

Applicants should have an active interest in cyber security, knowledge of vulnerability types, and familiarity with high-level languages; final-year students in 2027 may join our 2028 intake after completing the internship.

Qualifications

• Active interest in cyber security including ethical hacking, vulnerability research or reverse engineering.
• Inquisitive mindset and enthusiasm for solving challenging, complex research problems.
• Knowledge of vulnerability types (e.g., stack/heap overflows, use-after-free) and common mitigations.
• Familiarity with at least one high-level language (C, C++, or Java).
• Foundation in areas like Python scripting, Linux/shell, networking, CTFs, Ghidra, ethical hacking, Android and adb shell, or hardware hacking.
• Strong interpersonal skills and enthusiasm for teamwork.
• Final-year students in 2027 may be considered for a 2028 graduate intake after internship.

Responsibilities

• Work in small teams (2–3 people) on research projects for clients.
• Undertake research projects giving insights into client work.
• Tackle real project demands and unresolved technical challenges.
• Contribute to research on mobile and embedded technologies using Ghidra for reverse engineering; use languages like C, C++, Python, or assembly for proof-of-concept work.

Skills

Interest in cyber security

Problem solving

Interpersonal skills

C/C++/Java knowledge

Python scripting

Linux and shell

Reverse engineering

Education

Final year student (2027)

Tools

Ghidra

Job description

Salary: £30,500 - 50,500 per year

Requirements:

• An active interest in cyber security, including ethical hacking, vulnerability research, or reverse engineering
• An inquisitive mindset and enthusiasm for solving challenging, complex research problems
• Knowledge of vulnerability types, such as stack or heap overflows and use-after-free, and common mitigations
• Familiarity with at least one high-level language, such as C, C++, or Java
• A foundation in several relevant areas, which may include scripting with Python, Linux and shell use, networking, Capture the Flag challenges, Ghidra, ethical hacking, Android and adb shell, or hardware hacking
• Strong interpersonal skills and enthusiasm for working with others
• Students entering their final year in 2027 may be considered for a contract in our 2028 graduate intake after completing the internship

Responsibilities:

• Work closely with peers in small teams, usually of two to three people
• Undertake research projects that provide insight into the work we deliver for clients
• Tackle real project demands and unresolved technical challenges
• Contribute to research focused primarily on mobile and embedded technologies, using Ghidra for reverse engineering and suitable languages such as C, C++, Python, or assembly for proof-of-concept work

Technologies:

• Android
• Embedded
• Hardware
• Java
• Linux
• Mobile
• Python
• Security
• C++

More:

We are a cyber security company delivering high-end security research and bespoke solutions to clients across the UK. Our world-class team includes vulnerability researchers, reverse engineers, and high-assurance software engineers. We are offering a paid summer 2027 internship within our research team. Projects are designed to develop interns skills and offer direct insight into our client work. We focus mainly on mobile and embedded technologies, though our work sometimes extends beyond these areas. The advert is dated 9 November 2026 and may close early if we receive a high volume of suitable applications.

last updated 40 week of 2026