Senior Firmware Security Engineer - LLVM & AI Analysis

Ascendion; Redmond (WA); Hybrid; USD 170,000 - 180,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

401(k) retirement plan

Disability insurance

Paid time off & holidays

Job summary

Ascendion is seeking a Senior Software Engineer – Firmware Security / LLVM in Redmond, WA. The role focuses on building a next-generation firmware security analysis platform within Azure Hardware Security, at the intersection of LLVM, C/C++, fuzzing, static analysis, and AI-assisted vulnerability detection.

You will design pipelines, transform firmware to LLVM IR, enhance fuzzing frameworks, and collaborate with security researchers and compiler engineers to deliver scalable, enterprise-grade

Qualifications

• 7+ years of professional C/C++ systems programming experience.
• 5+ years of LLVM / Compiler Engineering experience.
• 3–5+ years working with security fuzzing tools such as libFuzzer, AFL, AFL++ or similar.
• Strong understanding of software security, memory safety vulnerabilities, and root cause analysis.
• Python scripting and automation experience.
• Experience with Git-based development workflows.

Responsibilities

• Design and develop firmware security analysis pipelines using C/C++, LLVM, and Python.
• Build compiler transformations and preprocessing pipelines that convert firmware into LLVM IR for automated analysis.
• Develop and enhance fuzzing frameworks to discover security vulnerabilities.
• Improve static analysis, crash triage, call graph generation, and AI-assisted vulnerability detection.
• Collaborate with compiler engineers, security researchers, and Azure platform teams.
• Contribute to CI/CD automation, testing, documentation, and open-source engineering initiatives.

Skills

C/C++ programming

LLVM/Compiler engineering

Security fuzzing tools

Python scripting

Git workflows

Tools

libFuzzer

AFL

AFL++

LLVM

Git

Job description

Ascendion is seeking a Senior Software Engineer – Firmware Security / LLVM in Redmond, WA. The role focuses on building a next-generation firmware security analysis platform within Azure Hardware Security, at the intersection of LLVM, C/C++, fuzzing, static analysis, and AI-assisted vulnerability detection.

You will design pipelines, transform firmware to LLVM IR, enhance fuzzing frameworks, and collaborate with security researchers and compiler engineers to deliver scalable, enterprise-grade