Senior Firmware Security Engineer

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

Long-term disability insurance

Short-term disability insurance

Paid time off

Paid vacation

Parental leave

Holidays

LMS

Tuition Reimbursement Program

Job summary

Ascendion is seeking a Senior Software Engineer focused on Firmware Security and Compiler Engineering in Redmond, WA. You will design and implement firmware security analysis pipelines using C/C++, LLVM, Python, and fuzzing frameworks, and contribute to AI-assisted security workflows within Azure Hardware Security.

You will collaborate with security researchers and compiler engineers, build CI/CD automation, and help drive open-source initiatives while shaping next-generation firmware analysis

Qualifications

• 7+ years of professional C/C++ systems programming experience.
• 5+ years in LLVM/Compiler Engineering.
• 3-5+ years with security fuzzing tools such as libFuzzer, AFL, AFL++.

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++ systems programming

LLVM / Compiler Engineering

Security fuzzing tools

Python scripting

Git-based development workflows

Education

Bachelor's degree

Tools

libFuzzer

AFL

AFL++

Job description

Ascendion is a full-service digital engineering solutions company. We make and manage software platforms and products that power growth and deliver captivating experiences to consumers and employees. Our engineering, cloud, data, experience design, and talent solution capabilities accelerate transformation and impact for enterprise clients. Headquartered in New Jersey, our workforce of 6,000+ Ascenders delivers solutions from around the globe. Ascendion is built differently to engineer the next.

Ascendion | Engineering to elevate life

We have a culture built on opportunity, inclusion, and a spirit of partnership. Come, change the world with us:

• Build the coolest tech for world’s leading brands
• Solve complex problems - and learn new skills
• Experience the power of transforming digital engineering for Fortune 500 clients
• Master your craft with leading training programs and hands-on experience

Experience a community of change makers!

Join a culture of high-performing innovators with endless ideas and a passion for tech. Our culture is the fabric of our company, and it is what makes us unique and diverse. The way we share ideas, learning, experiences, successes, and joy allows everyone to be their best at Ascendion.

About the Role:

Hiring: Senior Software Engineer - Firmware Security / Compiler Engineering (C++ | LLVM | Fuzzing | AI)

Location:Hybrid (Redmond, WA- 3 Days Onsite)

Are you passionate aboutsystems programming, firmware security, compiler technology, and AI-assisted security analysis? We're hiring aSenior Software Engineerto help build a next-generation firmware security analysis platform withinAzure Hardware Security.

This is a rare opportunity to work at the intersection ofLLVM, C/C++, fuzzing, static analysis, and Large Language Models (LLMs)to automate vulnerability discovery across firmware at enterprise scale.

What You'll Do

• Design and develop firmware security analysis pipelines usingC/C++,LLVM, andPython.
• Build compiler transformations and preprocessing pipelines that convert firmware into LLVM IR for automated analysis.
• Develop and enhancefuzzing frameworksto 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.

Required Skills

• 7+ years of professional C/C++ systems programming experience.
• 5+ years of LLVM / Compiler Engineeringexperience.
• 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.

Preferred Skills

• Firmware or Embedded Systems development.
• CodeQL or other static analysis platforms.
• Hardware Abstraction Layer (HAL), MMIO, rehosting, or cross-compilation.
• AI/LLM integration into engineering workflows.
• Open-source project contributions.

Why Join?

• Work on a cutting-edge Azure Hardware Security initiative.
• Build AI-powered security tooling from the ground up.
• Collaborate with world-class compiler, firmware, and security experts.
• Opportunity to contribute to a future open-source platform with industry-wide impact.

Salary Range: The salary for this position is between $170,000 - $180,000 annually. Factors which may affect pay within this range may include geography/market, skills, education, experience and other qualifications of the successful candidate.

Benefits: The Company offers the following benefits for this position, subject to applicable eligibility requirements: [medical insurance] [dental insurance] [vision insurance] [401(k) retirement plan] [long-term disability insurance] [short-term disability insurance] [personal days accrued each calendar year. The Paid time off benefits meet the paid sick and safe time laws that pertains to the City/ State] [12-15 days of paid vacation time] [6-8 weeks of paid parental leave after a year of service] [9 paid holidays and 2 floating holidays per calendar year] [Ascendion Learning Management System] [Tuition Reimbursement Program]