What are the responsibilities and job description for the Applications Dev & Test - Software Design Engineer 4 position at Apex Systems?
Job#: 3044339
Job Description:
Software Design Engineer
Type: 7-month contract to start
Location: REDMOND, Washington
Schedule: Hybrid, 3 days onsite and 2 days remote
Compensation: $70-83/hr w2
Role Overview
As a member of the engineering team, you will build and advance a next-generation firmware security analysis platform. This system combines large language models (LLMs), compiler technology, and automated fuzzing to identify security vulnerabilities in firmware at scale. You will work directly with security researchers, compiler engineers, and platform developers to build production-quality tooling spanning LLVM, fuzzing infrastructure, static analysis, and AI-assisted automation.
Key Responsibilities
Education: Bachelor's degree in Computer Science, Computer Engineering, or a related technical field, or equivalent practical experience.
Experience: Strong professional experience developing software in C/C .
Technical Skills:
Everforth Apex uses a virtual recruiter as part of the application process. Click here for more details. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Everforth Apex and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at https://www.apexsystems.com/privacy-policy
Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6 months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Everforth Apex team member can provide.
Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.
If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at [email protected] or 804-523-8228. Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.
UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex Systems.
© 2026 Everforth, Inc. All rights reserved.
Everforth Apex Systems is part of the Commercial Segment of Everforth, Inc.
NYSE: EFOR
4400 Cox Road
Suite 200
Glen Allen, Virginia 23060
Everforth Apex is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Benefits Department at [email protected] or 804-523-8228. (Do not submit resumes or solicit consultants to this email address). UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex.
Job Description:
Software Design Engineer
Type: 7-month contract to start
Location: REDMOND, Washington
Schedule: Hybrid, 3 days onsite and 2 days remote
Compensation: $70-83/hr w2
Role Overview
As a member of the engineering team, you will build and advance a next-generation firmware security analysis platform. This system combines large language models (LLMs), compiler technology, and automated fuzzing to identify security vulnerabilities in firmware at scale. You will work directly with security researchers, compiler engineers, and platform developers to build production-quality tooling spanning LLVM, fuzzing infrastructure, static analysis, and AI-assisted automation.
Key Responsibilities
- Develop preprocessing pipelines that compile C/C firmware code into LLVM Intermediate Representation (IR).
- Implement and maintain LLVM-based transformations to make firmware suitable for off-target analysis and fuzzing.
- Create and improve code-analysis workflows, including call-graph extraction, metadata generation, and static-analysis integrations.
- Design and maintain systems that generate and execute fuzzing campaigns using modern fuzzing frameworks.
- Build scalable automation that combines compiler infrastructure, security tooling, and AI-driven workflows.
- Improve system reliability, modularity, test coverage, and CI/CD automation.
- Create developer documentation, onboarding guides, and architectural references.
- Participate in design reviews and technical architecture discussions.
Education: Bachelor's degree in Computer Science, Computer Engineering, or a related technical field, or equivalent practical experience.
Experience: Strong professional experience developing software in C/C .
Technical Skills:
- 8-10 years of hands-on experience with compiler technologies, LLVM, or low-level systems programming.
- Experience working with fuzzing frameworks such as libFuzzer, AFL, AFL , or similar technologies.
- Strong understanding of software security principles, including memory-safety vulnerabilities and root-cause analysis.
- Proficiency with Python for automation and tooling development.
- Experience using Git-based development workflows.
- Experience with firmware, embedded systems, device software, or bare-metal development.
- Knowledge of hardware abstraction layers (HALs), MMIO, emulation, rehosting, or cross-compilation techniques.
- Experience with static-analysis platforms such as CodeQL.
- Familiarity with program-analysis concepts such as call graphs, data-flow analysis, or IR transformations.
- Experience integrating AI, machine learning, or LLM technologies into engineering workflows.
- Previous open-source contributor or maintainer experience.
- Experience building CI/CD pipelines and release automation.
- Familiarity with Azure DevOps, GitHub, or similar development platforms.
Everforth Apex uses a virtual recruiter as part of the application process. Click here for more details. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Everforth Apex and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at https://www.apexsystems.com/privacy-policy
Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6 months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Everforth Apex team member can provide.
Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.
If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at [email protected] or 804-523-8228. Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.
UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex Systems.
© 2026 Everforth, Inc. All rights reserved.
Everforth Apex Systems is part of the Commercial Segment of Everforth, Inc.
NYSE: EFOR
4400 Cox Road
Suite 200
Glen Allen, Virginia 23060
Everforth Apex is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Benefits Department at [email protected] or 804-523-8228. (Do not submit resumes or solicit consultants to this email address). UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex.
Salary : $70 - $83