Sr Staff Software Engineer (Expanse)

Company Description

Our Mission

At Palo Alto Networks® everything starts and ends with our mission:

Being the cybersecurity partner of choice, protecting our digital way of life.

Our vision is a world where each day is safer and more secure than the one before. We are a company built on the foundation of challenging and disrupting the way things are done, and we’re looking for innovators who are as committed to shaping the future of cybersecurity as we are.

Our Approach to Work

We lead with flexibility and choice in all of our people programs. We have disrupted the traditional view that all employees have the same needs and wants. We offer personalization and offer our employees the opportunity to choose what works best for them as often as possible - from your wellbeing support to your growth and development, and beyond!

At Palo Alto Networks, we believe in the power of collaboration and value in-person interactions. This is why our employees generally work from the office three days per week, leaving two days for choice and flexibility to work where you feel most effective. This setup fosters casual conversations, problem-solving, and trusted relationships. While details may evolve, our goal is to create an environment where innovation thrives, with office-based teams coming together three days a week to collaborate and thrive, together!

Job Description

Your Career

The Cortex Vulnerability Management Scanning team is expanding, and we’re looking for a Senior Staff Software Engineer to join our team. At Xpanse, we believe that making the internet a safer place for our customers matters. The Cortex Vulnerability Management Scanning team builds the software that provides our customers visibility into their behind-the-firewall attack surface, allowing them to prioritize and remediate critical vulnerabilities using the XSIAM platform.

Your Impact

• Design, build, and maintain network scanning software to run on customers’ networks, as well as the infrastructure required to deliver and update it
• Build an in-depth understanding of the leading open source network scanning solutions
• Analyze existing solutions, identify barriers to scaling, recommend changes, then implement
• Take part in architecture strategy sessions - design solutions that accommodate the requirements of the various groups across Cortex
• Collaborate with teams to solve problems, reduce technical debt, and evolve development practices - Drive technical best practices and evangelize new technologies within the engineering org
• Mentor other engineers and ensure that your team delivers high-quality output
• Take ownership of projects, drive them to completion, and support them in production

Qualifications

Your Experience

• 5+ years of experience as a professional software engineer writing back end software
• Experienced and opinionated about API design and distributed backend systems - Able to switch between research, design, prototype, and implementation
• Experience using cloud managed services (ideally in GCP)Proficient in Python and one of Rust, Goland, or C coupled with strong network programming skills - very familiar in common networking libraries of Rust, Goland, or C
• Very strong knowledge of common networking protocols such as HTTP, DNS, DHCP, ARP, FTP, etc - Basic knowledge in other less common protocols such as ICS/SCADA or database protocols
• Familiarity with common open source security software such as Nuclei, OpenVAS, and Nmap
• Very strong knowledge in network architectures; understands subnetting and routing and how VLANs work and affect network scanning
• Proficiency in Linux and Windows operating systems
• Basic understanding how a variety of exploits work and shows skills in enumerating and selecting the correct exploit for a given system
• Familiarity with packaging, deploying, and supporting on-prem / private cloud software
• Working knowledge of at least one of the major cloud platforms (eg GCP, AWS, or Azure)

Nice To Haves

• Cybersecurity knowledge demonstrated with base level certifications (eg OSCP, GPEN, or Pentest+) or willingness to obtain
• Knowledge of cybersecurity frameworks and vulnerability methodologies
• Familiarity with current penetration and security assessment tools such as Metasploit, Nmap, Burp Suite, Wireshark, etc. 
• Experience contributing to open source software

Additional Information

The Team

To stay ahead of the curve, it’s critical to know where the curve is, and how to anticipate the changes we’re facing. For the fastest growing cybersecurity company, the curve is the evolution of cyberattacks, and the products and services that