Senior Vulnerability Researcher — Android/Kernel Security

Hackajob Ltd; Harnham; On-site; GBP 61,000 - 101,000; Full time

Benefits offered by this job

Annual bonus

Private medical

Life cover

Pension 8%

Relocation support

Training & development

Cycle to work

O'Reilly books

Holiday allowance

Job summary

Hackajob Ltd is seeking a vulnerability researcher to join a world-class security team focused on cutting-edge research for UK clients. The role covers Android/Linux/iOS reverse engineering, code auditing, and tool development.

You'll work with ARM, x86 and MIPS architectures using Ghidra or IDA Pro, contributing to real-world security fixes and novel techniques. Strong C/C++ skills and teamwork are essential.

Qualifications

• Bug hunting, ethical hacking or reverse engineering background.
• Inquisitive mindset and enthusiasm for difficult research.
• Experience leading technical projects.
• Passion for cyber security and bug hunting.
• Familiarity with IDA Pro or Ghidra.
• Familiarity with ARM, AARCH64, x86, x64 and MIPS.
• Knowledge of bug hunting and vulnerability research.
• Ethical hacking experience across web and network tech.
• Knowledge of exploitation techniques and mitigations.
• Experience with Linux and its internals.
• Experience with Android or iOS and their internals.
• Good understanding of C or C++.
• Ability to share knowledge and work with team.

Responsibilities

• Deeply understand how Android devices work from apps to kernel.
• Reverse engineer proprietary binaries using ARM, ARM64, and MIPS.
• Audit C and C++ source code to spot security flaws.
• Develop novel tools and techniques for vulnerability research.
• Work with other vulnerability researchers and software engineers.
• Design and produce niche solutions with real-world impact.
• Produce proof-of-concepts in C, C++, Python or assembly.

Skills

Bug hunting

Ethical hacking

Reverse engineering

Vulnerability research

Project leadership

ARM architecture

x86/x64 familiarity

Linux internals

Android internals

iOS internals

C/C++ knowledge

Knowledge sharing

Tools

IDA Pro

Ghidra

Job description

Hackajob Ltd is seeking a vulnerability researcher to join a world-class security team focused on cutting-edge research for UK clients. The role covers Android/Linux/iOS reverse engineering, code auditing, and tool development.

You'll work with ARM, x86 and MIPS architectures using Ghidra or IDA Pro, contributing to real-world security fixes and novel techniques. Strong C/C++ skills and teamwork are essential.