Staff Security Engineer: Fuzzing & Resilience Architect

Arm; Cambridge; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

A leading technology firm in Cambridge is seeking a Staff Security Engineer – Fuzzing Specialist to enhance security through advanced fuzzing techniques. The successful candidate will design and develop fuzzing harnesses, triage crashes, and contribute to documentation and reporting. Ideal applicants have 1+ years of relevant experience, proficiency in C/C++ and Python, and expertise with modern fuzzing frameworks. This role supports a hybrid working model, fostering collaboration and innovation in product security.

Qualifications

• 1+ years in application or product security focusing on fuzzing.
• Expertise with fuzzing frameworks (e.g., libFuzzer, AFL++).
• Strong skills in programming languages C/C++ and scripting in Python.
• Understanding of memory-safety vulnerabilities and compiler instrumentation.
• Ability to triage crashes with debugging tools.

Responsibilities

• Map and prioritize fuzzing surfaces across different services.
• Design and improve fuzzing harnesses to enhance code coverage.
• Automate crash reporting and drive resolution of findings.
• Develop custom sanitizers for bugs missed by traditional fuzzing.
• Document insights and metrics to inform security practices.

Skills

Coverage-guided fuzzing

C/C++ programming

Python scripting

Memory-safety vulnerabilities

Documentation and communication

Tools

libFuzzer

AFL++

Honggfuzz

GDB

IDA

Job description

A leading technology firm in Cambridge is seeking a Staff Security Engineer – Fuzzing Specialist to enhance security through advanced fuzzing techniques. The successful candidate will design and develop fuzzing harnesses, triage crashes, and contribute to documentation and reporting. Ideal applicants have 1+ years of relevant experience, proficiency in C/C++ and Python, and expertise with modern fuzzing frameworks. This role supports a hybrid working model, fostering collaboration and innovation in product security.