Operating Systems Engineer
Anywhere
Category: Development
Industry: Government
Workplace Type: Remote
Reference ID: JN -072026-107806
Date Posted: 07/08/2026
Shortcut: http://careers.eliassen.com/Z2WcJJ
Description:
Remote
Our client seeks an Operating Systems Engineer to design, develop, and maintain platform adapters that extend the Darkstrike execution control platform to Microsoft Windows and macOS. The role collaborates with software engineering, cloud architecture, security, and platform engineering to integrate execution control with operating system services and enterprise productivity applications while upholding security, performance, and reliability. The position requires expertise in low-level operating system software, Windows and macOS application integration, systems programming, and enterprise endpoint technologies.
Due to federal security clearance requirements, applicant must be a United States Citizen. Due to client requirements, applicants must be willing and able to work on a w2 basis. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance.
Rate: $70.00 to $80.00/hr. w2
Responsibilities:
- Design and develop platform adapters that integrate the Darkstrike execution control platform with Microsoft Windows and macOS.
- Develop secure interfaces between the Darkstrike platform and operating system services.
- Extend execution control capabilities across supported operating system environments.
- Build highly performant, reliable, and maintainable operating system integration components.
- Evaluate operating system APIs and integration mechanisms to support secure execution control.
- Develop software utilizing native Windows APIs and frameworks.
- Develop software utilizing native macOS APIs and frameworks.
- Integrate with operating system authentication, authorization, process management, file system, and security services.
- Support compatibility across current enterprise Windows and macOS releases.
- Troubleshoot operating system interoperability and performance issues.
- Develop integrations supporting Microsoft Office desktop applications and Microsoft 365.
- Design secure interfaces with Office productivity applications where appropriate.
- Support execution control for enterprise productivity workflows.
- Collaborate with engineering teams to extend platform capabilities into Microsoft application environments.
- Collaborate with backend engineering to integrate platform adapters with execution control services.
- Develop secure interprocess communication and API integrations.
- Optimize platform performance, scalability, and reliability.
- Participate in architecture reviews and technical design discussions.
- Implement secure software development practices and least-privilege designs.
- Support secure authentication and authorization mechanisms.
- Participate in security reviews, testing, and vulnerability remediation.
- Assist in maintaining secure endpoint integration architectures.
Experience Requirements:
- Bachelor's degree in Computer Science, Computer Engineering, or related field, or equivalent professional experience.
- Minimum 10 years of software engineering experience.
- Strong experience developing software for Microsoft Windows and macOS.
- Deep understanding of operating system internals and native operating system APIs.
- Experience with systems programming using C++, Go, and Python.
- Experience integrating enterprise software with desktop operating systems.
- Strong understanding of process management, memory management, threading, file systems, and operating system security.
- Experience developing secure, high-performance software.
- Preferred: experience developing endpoint security or cybersecurity products.
- Preferred: integration experience with Microsoft Office, Microsoft 365, Windows COM, Win32, .NET interoperability, or Microsoft Graph APIs.
- Preferred: Apple development frameworks and macOS security architecture.
- Preferred: secure software architecture and modern authentication technologies.
- Preferred: cloud-connected endpoint applications.
- Preferred: experience with AI-assisted development tools.
- Preferred: experience with Golang and Python.
- Preferred: experience with AWS cloud services and cloud-native architectures.
Education Requirements:
Bachelor's degree in Computer Science, Computer Engineering, or related field, or equivalent professional experience.
Skills, experience, and other compensable factors will be considered when determining pay rate. The pay range provided in this posting reflects a W2 hourly rate; other employment options may be available that may result in pay outside of the provided range.
W2 employees of Eliassen Group who are regularly scheduled to work 30 or more hours per week are eligible for the following benefits: medical (choice of 3 plans), dental, vision, pre-tax accounts, other voluntary benefits including life and disability insurance, 401(k) with match, and sick time if required by law in the worked-in state/locality.
If anyone reaches out to you about an open position connected with Eliassen Group, please ensure that you are working directly with us by confirming the following:
· When you work with Eliassen Group, all email communication will come from an Eliassen.com address, never Gmail, Yahoo, etc.
· Eliassen Group will never ask you for personal information (home address, bank account, or check routing number) until you have worked with someone clearly associated with Eliassen Group.
If you have any indication of fraudulent activity, please contact fraud@eliassen.com.
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Eliassen Group is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status. Eliassen Group’s Affirmative Action Plan (AAP) is available for inspection by any employee or applicant for employment upon request, during normal business hours of Monday through Friday, 8:30am to 5:30pm EST. Interested persons should contact Phaedra Wells at pwells@eliassen.com for assistance. It is unlawful in Massachusetts and Maryland to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.
Applicants with disabilities that believe they require an accommodation or assistance with a position, please email our HR team at hradmin@eliassen.com. This email inbox is designed exclusively to assist job seekers whose disability prevents them from being able to apply online. Emails sent for other purposes will not receive a response.
Please be advised that a number of fraudulent job postings have been released under the Eliassen Group brand.
Unfortunately, fraudulent job postings can happen. If anyone reaches out to you about an open position connected with Eliassen Group, never provide personal or financial information to anyone who is not clearly associated with Eliassen Group
If anyone seemingly from Eliassen Group has ever requested this personal information in the past or does so in the future, please contact fraud@eliassen.com.
Please ensure that you are working directly with us by confirming the following:
- When you work with Eliassen Group, all email communication will come from an Eliassen.com address, never Gmail, Yahoo, etc.
- Eliassen Group will never ask you for personal information (home address, bank account, or check routing number) until you have worked with someone clearly associated with Eliassen Group, as indicated above