Senior Fuzzing & Security Engineer — Coverage Leader

Arm Limited; Cambridge; Hybrid; GBP 50,000 - 70,000; Full time

Job summary

A leading technology company in the UK seeks a Security Engineer – Fuzzing Specialist. The role involves owning a coverage-guided fuzzing program, improving security through proactive fuzz testing, and collaborating with product teams to resolve vulnerabilities. The ideal candidate will have experience in application security, proficiency in C/C++ and modern fuzzing tools, plus excellent communication skills. This position offers a hybrid working model, balancing collaboration and flexibility.

Qualifications

• 1+ years in application or product security focusing on fuzzing.
• Hands-on experience with modern fuzzing frameworks.
• Solid understanding of memory-safety vulnerabilities and instrumentation.

Responsibilities

• Own and evolve the coverage-guided fuzzing program.
• Map and prioritize fuzzing surfaces across services and APIs.
• Automate crash triage and root-cause analysis.

Skills

Coverage-guided fuzzing

C/C++

Python scripting

Debugging tools (gdb/lldb)

Excellent written communication

Tools

libFuzzer

AFL++

Honggfuzz

Job description

A leading technology company in the UK seeks a Security Engineer – Fuzzing Specialist. The role involves owning a coverage-guided fuzzing program, improving security through proactive fuzz testing, and collaborating with product teams to resolve vulnerabilities. The ideal candidate will have experience in application security, proficiency in C/C++ and modern fuzzing tools, plus excellent communication skills. This position offers a hybrid working model, balancing collaboration and flexibility.