• Lead the migration, configuration, and maintenance of Cisco ASA (Classic) and Firepower (FTD) systems • Manage a robust Palo Alto environment via Panorama • Design and manage F5 BIG-IP solutions, focusing on LTM (Local Traffic Manager) for load balancing and ASM/WAF (Application Security Manager) for protecting web applications • Implement and manage micro-segmentation policies and virtualized security services within VMware NSX (T/V) environments • Architect strategies to transition legacy Cisco ASA rulesets to Cisco Firepower or Palo Alto NGFWs without service disruption • Act as the highest escalation point for complex network outages, security breaches, or performance degradation across the global fabric • Provide exceptional customer support via the phone and ticketing system • Collaborate with Service Delivery Managers and Account Executives to build strong customer relationships • Participate in Root Cause Analysis (RCA) exercises to drive process & technology improvements • Prepare and review defined policy and process standards • Communicate effectively, both verbally and in writing, with customers as well as internal stakeholders

Rackspace Technology is a leading provider of expertise and managed services across all the major public and private cloud technologies. We’ve evolved Fanatical Support to encompass the entire customer journey — providing Fanatical Experience™ from first consultation to daily operations. Our passionate experts combine the power of proactive, always-on service and expertise with best-in class tools and automation to deliver technology when and how our customers need it. We are seeking a Network Security Engineer (Level IV) to join our infrastructure team. This role requires a seasoned veteran in the security space who can seamlessly navigate traditional hardware, softwareN defined networking, and advanced load-balancing solutions. You will be the primary architect and administrator for our high-availability security stack, with a specific focus on Cisco (ASA/Firepower/ISE), Palo Alto, F5 BIG-IP, and VMware NSX. Key Responsibilities: - Multi-Vendor Firewall Management: Lead the migration, configuration, and maintenance of Cisco ASA (Classic) and Firepower (FTD) systems, while managing a robust Palo Alto environment via Panorama. - Application Delivery & Security: Design and manage F5 BIG-IP solutions, focusing on LTM (Local Traffic Manager) for load balancing and ASM/WAF (Application Security Manager) for protecting web applications. - Software-Defined Networking (SDN): Implement and manage micro-segmentation policies and virtualized security services within VMware NSX (T/V) environments. - Legacy to Next-Gen Migration: Architect strategies to transition legacy Cisco ASA rulesets to Cisco Firepower or Palo Alto NGFWs without service disruption. - Tier 3 Support: Act as the highest escalation point for complex network outages, security breaches, or performance degradation across the global fabric. - Provide exceptional customer support via the phone and ticketing system - Own level-appropriate customer requests and issues, seeing them through to resolution - Own support escalations from other engineers and support teams according to escalation procedures - Collaborate with Service Delivery Managers and Account Executives to build strong customer relationships - Work closely with customers in the pre-implementation process to design and architect desired customer solutions. - Work closely with the implementation team to quality check deployments and perform initial vulnerability assessment as part of the customer environment acceptance process. - Research, plan and coordinate complex maintenance activities - Participate in Root Cause Analysis (RCA) exercises to drive process & technology improvements. - Collaborate and share knowledge with other administrators and engineers via articles and training presentations - Contribute to the development of technical best practices for administrative responsibilities - Prepare and review defined policy and process standards - Ability to communicate effectively, both verbally and in writing, with customers as well as with internal stakeholders. Including preparing and presenting to customers electronically as well as on-site. - Must be able to work a flexible schedule, 24x7x365 coverage, including holidays and weekends Technical Skills & Qualifications: - Cisco Specialist: Advanced knowledge of Cisco ASA (CLI/ASDM) and Firepower Threat Defense (FTD) managed via FMC. - Palo Alto Expert: Deep experience with Palo Alto NGFW features (App-ID, User-ID, SSL Decryption). - Load Balancing: Proficiency in F5 BIG-IP, including iRules development, SSL offloading, and traffic steering. - Virtualization: Hands-on experience with VMware NSX, specifically in configuring distributed firewalls (DFW) and edge gateways. - Protocols: Mastery of TCP/IP, BGP, OSPF, and deep packet inspection. Certifications: - CCNP Security – Required. - CCIE Security – Highly Preferred. - Specialist certifications in Firepower or ASA are a significant plus. - PCNSE (Palo Alto Networks Certified Network Security Engineer) – Required. - F5-CTS (Certified Technology Specialist) – Preferred - VCP-NV (VMware Certified Professional - Network Virtualization) – Preferred Experience: - Expert level experience in network security engineering. - Demonstrated experience managing complex firewall rule bases (10,000+ rules) across disparate platforms. - Expertise in troubleshooting complex asymmetric routing issues and application-level latency in a multi-vendor environment. About Rackspace Technology We are the multicloud solutions experts. We combine our expertise with the world’s leading technologies — across applications, data and security — to deliver end-to-end solutions. We have a proven record of advising customers based on their business challenges, designing solutions that scale, building and managing those solutions, and optimizing returns into the future. Named a best place to work, year after year according to Fortune, Forbes and Glassdoor, we attract and develop world-class talent. Join us on our mission to embrace technology, empower customers and deliver the future. More on Rackspace Technology Though we’re all different, Rackers thrive through our connection to a central goal: to be a valued member of a winning team on an inspiring mission. We bring our whole selves to work every day. And we embrace the notion that unique perspectives fuel innovation and enable us to best serve our customers and communities around the globe. We welcome you to apply today and want you to know that we are committed to offering equal employment opportunity without regard to age, color, disability, gender reassignment or identity or expression, genetic information, marital or civil partner status, pregnancy or maternity status, military or veteran status, nationality, ethnic or national origin, race, religion or belief, sexual orientation, or any legally protected characteristic. If you have a disability or special need that requires accommodation, please let us know.

• Work closely with the CISO to build the product security strategy, roadmap, and metrics to measure and monitor product security posture. • Conduct design and architecture reviews for Ocrolus products and infrastructure. • Perform code reviews and application security assessments, including AI/LLMs. • Engage with the development teams to conduct secure design reviews/threat modeling exercises. • Identify vulnerabilities/threats that could affect Ocrolus products through independent research and work with the developers on workarounds/mitigation plans. • Be the go-to person for developers in solving critical issues relating to secure product development. • Run penetration testing targeting critical data, services, and environments. Report underlying security issues and propose enhanced security protections. • Write and disseminate security guidelines for common security issues, remediation, and security technology baselines. • Collaborate with stakeholders to ensure secure deployment of AI systems by staying updated on AI security best practices and executing adversarial testing strategies. • Guide engineering teams on secure coding and testing principles/practices. • Be a role model for the team and provide a healthy platform for learning and growth. Build relationships with stakeholders throughout the engineering and product organizations. • Spread security culture throughout the organization.

Sangoma is seeking a motivated and detail-oriented Endpoint Security Engineer with experience in Incident Response, SOC operations, operating system security, and automation. In this role, you will help strengthen the company’s security posture by designing and implementing new endpoint security solutions and improving existing controls. You will collaborate closely with teams across the technology organization to investigate security events, document lessons learned and drive meaningful improvements. This mid-level position is ideal for someone who can communicate effectively with both technical and non-technical stakeholders and enjoys building and enhancing security capabilities. At this time, we can only consider candidates with permanent, unrestricted U.S. work authorization (U.S. citizens or green card holders). This is a remote position with a preference for candidates located in the Central or Eastern time zones.