Apex Systems · 3 days ago
Applications Dev & Test - Software Design Engineer 3
Redmond, WA
Full-time
Hybrid
Senior Level
$60/hr - $64/hr
5+ years expApex Systems is a world-class IT services company that serves thousands of clients across the globe. They are seeking a Software Design Engineer 3 to design, develop, implement, test, and maintain low-level software and firmware for Windows hardware security, including the Pluton security chipset.
Human ResourcesInformation TechnologyRecruiting
Responsibilities
Participate in daily sprint execution and stand-up meetings
Design and develop firmware/software for Windows boot components
Implement and test TPM drivers, trusted boot flows, and OS security components
Work directly with the Microsoft Pluton chipset and related hardware security technologies
Write, review, and optimize cryptographic code
Collaborate with cross-disciplinary engineering teams (hardware, firmware, OS, security)
Debug complex issues across firmware, drivers, and OS layers
Validate security features on specialized hardware and prototype devices
Fine-tune and improve sophisticated software implementation projects
Gather and analyze system requirements; document specifications
Develop secure software solutions aligned with platform and customer needs
Analyze enhancement requests and translate them into technical designs
Implement system software and customize solutions to meet device requirements
Prepare detailed software specifications and test plans
Write new code and create test data for validation
Modify existing programs to meet new standards and perform unit testing
Build migration packages for system testing, user testing, and deployment
Conduct quality assurance reviews and post-implementation validation
Diagnose and resolve issues across new and legacy systems
Qualification
Required
Bachelor's degree in Computer Science, Computer Engineering, or related technical field
5–7 years of professional software engineering experience
Strong foundation in computer science fundamentals (data structures, algorithms, software design)
Experience with large‑scale systems software design and development
Proven ability in deep troubleshooting, debugging, and unit testing
Experience diagnosing and resolving complex software issues
Hardware Security Expertise
TPM, trusted boot, secure boot, hardware‑rooted trust, platform security
Cryptography
Encryption/decryption software development
Implementing and understanding crypto algorithms and secure coding practices
Low‑Level Windows Firmware & Driver Development
Windows boot components
Firmware development
Driver‑level programming and debugging
Preferred
Prior experience specifically in hardware security engineering
Hands‑on experience with Windows low‑level code, firmware, and cryptographic implementations
Strong understanding of OS internals, drivers, and secure system architecture
Benefits
Medical
Dental
Vision
Life
Disability
Other insurance plans that offer an optional layer of financial protection
ESPP (employee stock purchase program)
401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure
HSA (Health Savings Account on the HDHP plan)
SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions
Corporate discount savings program
Other discounts
On-demand training program
Access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure
Certification discounts and other perks to associations that include CompTIA and IIBA
Dedicated customer service team for our Consultants that can address questions around benefits and other resources
Certified Career Coach
Company
Apex Systems
Apex Systems, a division of On Assignment, provides organizations with IT staffing solutions to address gaps in their current workforce.
1001-5000 employees
H1B Sponsorship
Apex Systems has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (28)
2024 (21)
2023 (35)
2022 (26)
2021 (29)
2020 (38)
Funding
Current Stage
Late StageLeadership Team
Roger Wahman
Chief Technology Officer - SVP
Andrea Schiola
Global Head of Technology Partnerships, SVP, Principal
Recent News
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