Cisco

Senior Software Engineer- Windows (Duo)

Cisco$139K — $203K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in computer science or related field, or equivalent experience.
  • 6+ years of systems software engineering with Modern C++ or C.
  • Experience with Win32 APIs and multi-threading in Windows applications.
  • Background in administering or integrating with Active Directory and Kerberos.
  • Proficient in PowerShell scripting and WMI/CIM for system automation.

Responsibilities

  • Design and implement high-performance endpoint authentication components for Zero Trust security.
  • Lead technical design of Windows Credential Providers and MFA adapters to enhance security.
  • Develop automated diagnostic utilities using PowerShell and WMI/CIM for efficient deployment.
  • Collaborate with cross-functional teams to produce Architectural Decision Records and test pipelines.
  • Mentor engineers through code reviews and provide technical guidance.

Benefits

  • Collaborative work environment focused on innovation and security excellence.
  • Opportunities for professional development and mentoring.
  • Involvement in cutting-edge security projects.
  • Exposure to modern authentication technologies.
Full Job Description
Your Impact
  • Design and implement high-performance, memory-safe endpoint authentication components and enterprise integrations using Modern C++ (C++17/20) and native Win32 APIs to deliver resilient Zero Trust security at operating system logon.
  • Lead the technical design and hardening of custom Windows Credential Providers, ADFS MFA adapters, and WTS multi-session services to eliminate authentication latency and prevent credential bypass attacks.
  • Develop automated diagnostic utilities and robust administrative tooling using PowerShell and WMI/CIM to streamline enterprise-scale deployment and enhance sysadmin manageability.
  • Partner closely with Product Management, Security Architecture, and Design to author Architectural Decision Records (ADRs) and establish comprehensive automated test pipelines to guarantee zero-regression releases.
  • Mentor peer engineers through insightful code reviews and technical guidance to foster engineering excellence and accelerate team delivery velocity.

Minimum Qualifications
  • Bachelor's degree in computer science, computer engineering, or a related technical field (or equivalent practical experience).
  • 6+ years of professional systems software engineering experience using Modern C++ (C++14/17/20) or C.
  • Experience developing native Windows desktop or server applications using Win32 APIs, multi-threading synchronization primitives, and IPC.
  • Experience administering or integrating with on-premises Active Directory (AD DS), Kerberos authentication protocols, or Windows Server environments.
  • Experience authoring PowerShell scripts or utilizing WMI/CIM for Windows system automation, configuration, and troubleshooting.

Preferred Qualifications
  • Custom Credential & Security Architecture: Direct experience developing custom Windows Credential Providers, LSA authentication packages, or Active Directory Federation Services (ADFS) MFA adapters.
  • Diagnostics & Low-Level Debugging: Hands-on experience debugging user-mode crashes, race conditions, and deadlocks using WinDbg, ETW tracing, or Visual Studio diagnostic tools.
  • Enterprise Deployment Engineering: Experience authoring enterprise MSI installer customizations, Group Policy Administrative Templates (.admx/.adml), or GPO deployment workflows.
  • Modern Identity & Passwordless Auth: Familiarity with modern authentication protocols, FIDO2/WebAuthn, Passwordless logon architectures, or Microsoft Entra ID (Azure AD) hybrid join.
  • Technical Leadership & Mentorship: Demonstrated technical leadership experience authoring Architectural Decision Records (ADRs), conducting structured code reviews, and mentoring fellow engineers.

About Cisco

Cisco Careers

Join the vibrant team at Cisco, a global leader in networking and cybersecurity solutions, where innovation and leadership thrive. Cisco offers a plethora of job opportunities that cater to a range of skills and experiences, making it an ideal place for both seasoned professionals and those seeking an internship to jumpstart their career. Work You’ll Do At Cisco, you’ll be part of a culture that values diversity, leadership, and professional growth. Engage in work that matters with a team that combines technology, creativity, and the power of human connection to redefine networking. Cisco’s commitment to innovation isn’t just about technology, but also about transforming the way we work and collaborate. Cisco’s employment philosophy supports career advancement and nurtures a leadership pipeline that is equipped with diversity training and opportunities for growth. Whether you’re applying your skills to drive our latest innovations or using our vast networking capabilities to solve complex problems, at Cisco, every role is impactful. Join Our Dynamic Team Explore job opportunities in areas ranging from engineering to marketing, sales to cybersecurity. Cisco is hiring individuals who are passionate, curious, and ready to drive change. Positions at Cisco offer competitive benefits, a supportive culture, and the chance to work with cutting-edge technology. Internship Programs Kickstart your career with a Cisco internship. Gain invaluable industry experience, enhance your resume, and build professional networks that last a lifetime. Our internships provide hands-on experience and the chance to work on projects that matter. Leadership and Development Cisco is committed to fostering leadership skills and providing employees with the training needed to succeed. Our leadership programs help you develop new skills, manage teams effectively, and lead with confidence. Cisco’s commitment to professional development ensures that your career path is as dynamic as our technologies. Benefits and Culture Cisco understands the importance of a balanced life. Our benefits package is designed to ensure that our team members are healthy, happy, and secure. At Cisco, you’ll find a supportive culture that encourages open communication, teamwork, and mutual respect. Stay Connected Join Cisco’s Talent Network Stay informed about new positions that match your skills and interests. At Cisco, we value the curiosity and unique perspectives of our team members. Subscribe to receive personalized job alerts and insider tips directly from our hiring managers. Explore Cisco Jobs Ready to advance your career at Cisco? Search open positions, prepare your resume, and get ready for an interview that could lead to your next big opportunity. At Cisco, we’re not just filling positions—we’re investing in leaders. Keep Up to Date Stay ahead with career tips, insider perspectives, and industry-leading insights you can put to use today—all from the people who work here. READ CAREERS BLOG Job Alert Emails Customize your subscription to receive job alerts, the latest news, and insider tips tailored to your preferences. Discover the exciting and rewarding career opportunities that await you at Cisco.
Learn more about Cisco
Size
79,500 employees
Market Cap
$194.5 billion
Industry
Net Income
$10.1 billion
Founded
2014
5 Year Trend
+1.4%
Revenue
$48 billion
NASDAQ

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