Cisco

Senior Software Engineer (Remote)

Cisco • $167K — $245K *
US-Anywhere
+ 51 other locationsRemote
Enterprise Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree with 5+ years or Master's degree with 4+ years in software development.
  • Strong background in systems programming using C or C++, particularly for multi-threaded and multi-process applications.
  • At least 2 years of experience with operating system fundamentals including threads, processes, file systems, and networking.
  • Proficiency in Windows system programming, particularly with Win32 APIs, File I/O, and Winsock, along with familiarity with API hooking.
  • Demonstrated ability to debug and troubleshoot complex software systems.

Responsibilities

  • Develop and enhance runtime security features for a Windows-based endpoint agent.
  • Design and implement systems-level endpoint security and monitoring capabilities using Go, C, and C++.
  • Participate in architecture, design, and implementation discussions with senior engineers and architects.
  • Investigate Windows platform behavior and interactions between user-mode and kernel-mode components.
  • Develop multi-threaded and multi-process applications and system-level software.
  • Debug and resolve complex implementation issues, including performing code reviews.
  • Analyze and optimize feature performance for efficient endpoint operation.

Benefits

  • Fully remote position, allowing work from anywhere in the United States.
  • Opportunities for collaboration and impact across diverse platforms, including Windows and Linux.
  • Engagement in architecture and design discussions with experienced engineers.
  • Access to a dynamic work environment focused on security, visibility, and cross-platform solutions.
Full Job Description
The application window is expected to close on: 11/29/2026
This is a fully remote role and can be based anywhere in the United States.

Your Impact

As a Software Engineer on the software agent team, you will develop and enhance runtime security features for a Windows-based endpoint agent. You will use systems programming, Windows platform APIs, operating system fundamentals, and networking concepts to build reliable and efficient security capabilities that operate close to the underlying operating system.

You will investigate Windows platform behavior and interactions between user-mode and kernel-mode components while designing and implementing endpoint security and system-monitoring functionality. You will participate in architecture and design discussions with senior engineers and architects, troubleshoot complex implementation issues, and optimize software for performance and reliability.

Because our products operate across platforms, you will also collaborate with engineers developing related capabilities across Linux and other environments. The features you develop will contribute to Cisco Isovalent's ability to provide security, visibility, and protection across modern enterprise, data center, and cloud workloads.

Key Responsibilities:

  • Develop and enhance runtime security features for a Windows-based endpoint agent.
  • Design and implement systems-level endpoint security and monitoring capabilities using Go, C, and C++.
  • Participate in architecture, design, and implementation discussions with senior engineers and architects.
  • Develop software using Windows system programming interfaces, including Win32 APIs, File I/O, and Winsock.
  • Investigate Windows platform behavior, APIs, and interactions between user-mode and kernel-mode components.
  • Develop multi-threaded and multi-process applications and system-level software.
  • Debug and resolve complex implementation issues and perform code reviews to improve software quality.
  • Analyze and optimize feature performance to ensure efficient endpoint operation.
  • Collaborate with cross-functional teams to understand runtime security requirements and translate them into reliable software solutions.
  • Contribute to cross-platform security capabilities spanning Windows and Linux environments.

Minimum Qualifications:

  • Bachelor's degree with 5+ years of software development experience, or a Master's degree with 4+ years of software development experience
  • Experience with systems programming using C, or C++, including multi-threaded and multi-process application development.
  • 2 + year's experience with operating system fundamentals, including threads, processes, file systems, networking, and inter-process communication.
  • Experience with Windows system programming, including Win32 APIs, File I/O, Winsock, and familiarity with API hooking concepts.
  • Experience debugging and troubleshooting complex software systems.

Preferred Qualifications:

  • Understanding of Windows kernel concepts and how user-mode and kernel-mode components interact.
  • Experience developing endpoint security, cybersecurity, or system-monitoring software.
  • Experience with Windows kernel programming, driver development, or low-level Windows internals.
  • Familiarity with malware detection techniques, endpoint protection technologies, or security monitoring concepts.
  • Experience with network programming and security-related protocols.
  • Experience implementing complex systems-level software features in production environments.
  • Experience analyzing and optimizing performance for systems-level or endpoint software.
  • Experience collaborating with senior engineers and architects on software architecture and technical design decisions.

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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
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