Senior Systems Enginer

Verisign helps enable the security, stability, and resiliency of the internet. We are a trusted provider of internet infrastructure services for the networked world and deliver unmatched performance in domain name system (DNS) services. We are a mission focused, values driven company where each individual can contribute to building a stronger, more secure internet. We offer a dynamic and flexible work environment with competitive benefits and the ability to grow your career. This position is part of a highly skilled engineering and infrastructure team responsible for the design, administration, security, and operation of Verisign’s application delivery and application security enterprise platforms . This role requires deep systems administration expertise combined with strong ownership of developer productivity, CI/CD, and security tooling ecosystems. The ideal candidate is an experienced systems engineer with expert-level Linux knowledge, strong platform administration capabilities, and a proven ability to operate in compliance-driven environments while improving reliability and efficiency at scale. Key Responsibilities Architect, install, configure, and maintain production and non-production systems supporting enterprise application delivery and security platforms Serve as a subject matter expert in Linux systems administration , including performance tuning, OS hardening, and advanced troubleshooting Administer and optimize key enterprise platforms including: Source control and collaboration tools (GitHub, GitHub Enterprise) Work management systems (Jira) CI/CD platforms (CloudBees Jenkins) Artifact repositories (JFrog Artifactory) Administer and support software supply chain security tools , including: Nexus IQ Firewall JFrog Xray GitHub Advanced Security (GHAS) Ensure platforms and processes meet security, audit, and compliance requirements , including SOC and SOX controls Design and implement automation to improve system reliability, scalability, and operational efficiency Lead incident response efforts, including troubleshooting, root cause analysis, and long-term remediation Maintain and support Kubernetes clusters and containerized workloads where applicable Develop and maintain infrastructure-as-code using tools such as Terraform, Ansible, or similar Collaborate with development, security, and platform teams to enhance system reliability and developer experience Implement and maintain monitoring, logging, and alerting solutions aligned with engineering best practices Mentor junior engineers and contribute to team knowledge sharing and operational maturity Participate in a 24x7 on-call rotation supporting critical enterprise platforms Required Qualifications Bachelor’s degree in Computer Science, Engineering, or equivalent work experience 10+ years of experience in systems engineering, site reliability engineering, or systems administration in enterprise environments Expert-level experience with Linux/Unix systems administration in production environments Strong hands-on experience administering: GitHub / GitHub Enterprise (repository management, access controls, integrations) Jira (project configuration, workflows, automation) CloudBees Jenkins (CI/CD pipeline administration, scaling, and maintenance) Artifactory (repository management and artifact lifecycle) Experience administering application security and software composition analysis tools such as Nexus IQ, Xray, or GitHub Advanced Security Strong understanding of SOC and SOX compliance frameworks , including audit controls and evidence management Proven experience with automation and infrastructure-as-code (Terraform, Ansible, Puppet, or Chef) Strong scripting and programming skills (Python, Bash, or similar) Solid understanding of networking fundamentals (TCP/IP, DNS, routing, firewalls) Experience operating and troubleshooting container platforms (Kubernetes, Docker) Experience with monitoring and observability tools (Prometheus, ELK, Nagios, or similar) Demo…