Software Development Engineer, Duo Security

The application window is expected to close on June 16th, 2025. Note: Job posting may be removed earlier if the position is filled or if a sufficient number of applications are received.

The position is open to remote candidates; preference will be given to candidates located in Atlanta, GA, Cary, NC, Boston, MA, Fulton, MD, Austin, TX or Ann Arbor, MI.

Meet the Team

Duo Security, now part of Cisco, is an industry leading multi-factor authentication (MFA) and secure access provider. Our mission is simple: democratize security by making it easy and effective for everyone. We're transforming security from the ground up by solving the world's most pressing geopolitical challenge - safe, secure information access. We engineer our business to enable our customers to easily address their ever-evolving security challenges.

We believe that impactful work is rewarding work and that our team is at its best when everyone feels empowered to bring their whole self to work. We learn together by hiring for cultural contribution and recognize that diversity in background and thought are essential to building high-impact teams.

We invest in growth and learning opportunities and encourage our people to never stop learning. We foster collaboration and believe in being recognized (and rewarded!) for hard work. We champion a healthy work-life balance. We're kinder than necessary.

Together we build for the future by designing simple solutions for complex problems. And that's why we're the most loved and trusted name in security.

Your Impact

As a Senior Software Engineer on Duo's AI and Security Research team, you will build systems that detect and respond to cyber risk, preventing identity compromise and providing seamless and secure access for our customers. You will work with Security Researchers, Data Scientists, and Machine Learning Engineers to deliver advanced product capabilities and support our existing Duo Trust Monitor and Risk-based Authentication systems. By joining our team, you'll contribute to a team culture of empathy, collaboration and learning, while building the next generation of intelligent solutions to keep our customers secure. Responsibilities include:

• Work with researchers, engineers and product teams to solve technical problems of high complexity to deliver data-driven solutions
• Build highly available services that contribute to a seamless and reliable authentication experience
• Contribute to the team's engineering roadmap based on feedback from collaborators across our engineering and product organizations
• Participate in the architecture and design of scalable systems for threat detection and response

Minimum Qualifications

• 7+ years professional experience programming in Python or a similar modern language
• 5+ years of experience creating and maintaining performant and scalable SaaS solutions
• 5+ years of experience working with cloud infrastructure, including AWS
• 5+ years building and working with server-side web applications, REST APIs, and/or microservices
• A BA/BS in the field of Computer Science or related field

Preferred Qualifications

• Ability to work with Data Scientists and Security Researchers, translating research output to customer-facing product features
• Experience integrating machine learning and data analytics solutions into production software
• Experience with data processing and storage frameworks such as Spark, Delta Lake, or Athena
• Experience with Docker and Kubernetes
• Experience clearly communicating written approaches for architecting across multiple engineering teams
• A security/identity leader with vision, finding satisfaction in solving complex problems at the forefront of modern internet security

Why Cisco?

At Cisco, we're revolutionizing how data and infrastructure connect and protect organizations in the AI era - and beyond. We've been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint. Simply put - we power the future.

Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you'll see that the opportunities to grow and build are limitless. We work as a team, collaborating with

empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere.

We are Cisco, and our power starts with you.