Senior IT Infrastructure Administrator, Security

Location - US (Pittsburgh or Boston) or Toronto, Canada Why Confluence? At Confluence, we’ve always been driven by a commitment to innovation, precision, and partnership in the investment data space. Our global footprint now spans multiple countries, giving our employees the opportunity to get exposure to other countries and cultures. And it stands to reason that none of this would have been possible without the hundreds of hard-working employees who work at Confluence. More about the role & team Hands-on infrastructure security role with real ownership and visible impact We’re looking for a senior infrastructure professional who enjoys solving practical security challenges and improving how security is delivered across enterprise systems. This role sits within the IT Infrastructure team and works closely with Cybersecurity, with a strong focus on implementation, remediation, and secure operations across Windows and Linux environments. This is not a purely advisory or monitoring position. You’ll take direct ownership of vulnerability remediation, help improve patching cycles, and ensure systems are securely configured and operationally resilient. You’ll also contribute to key initiatives including certificate lifecycle management and the operational use of security platforms such as Privileged Access Management and Cloudflare. If you enjoy hands-on work, broad technical exposure, and the opportunity to improve security posture in a meaningful way, this is a role where you can make a clear and measurable difference Why should you apply? Take ownership of vulnerability remediation across enterprise systems, helping reduce backlog and improve remediation delivery at scale. Improve patching cadence, configuration hygiene, and secure operational practices across infrastructure environments. Administer and harden Windows Server environments, including Active Directory, Group Policy, DNS, authentication, and certificate services, with supporting Linux administration. Support certificate lifecycle management, including TLS/PKI, renewals, and ongoing certificate operations. Work with core security platforms such as PAM solutions and Cloudflare, and support logging and monitoring platforms such as Sumo Logic or Splunk. Partner closely with Cybersecurity and infrastructure stakeholders to implement approved controls, remediate findings, and improve how security is operationalized across environments. Like solving real security problems instead of just identifying them? Join our IT Infrastructure team in a senior hands-on role focused on vulnerability remediation, patching, certificate lifecycle management, and secure operations across enterprise systems. What skills and experience do I need to succeed? Essential Requirements 8+ years of experience in enterprise systems administration or IT infrastructure Strong generalist infrastructure background with the ability to work across multiple systems and environments Hands-on experience with Windows Server (Active Directory, DNS, authentication, certificates) and working knowledge of Linux administration Experience managing certificate lifecycle (TLS/PKI) , including renewal and ongoing management (key priority) Exposure to security tools such as Privileged Access Management (PAM) and Cloudflare (WAF/edge security) Experience with logging/monitoring platforms (e.g., Splunk, Sumo Logic or similar) Proven ability to remediate vulnerabilities hands-on , including patching and reducing backlog across systems Strong scripting/automation skills (PowerShell required) Ability to apply security controls across infrastructure and prevent misconfigurations Desirable Requirements Experience automating certificate lifecycle processes across environments Exposure to SIEM or centralized logging beyond administration, including tuning, alerting, or optimization Experience delivering infrastructure or security projects end-to-end Experience working in SaaS or cloud-centric environments Ability to produce technical documentation, runbooks, and support knowledge transfer What do we offer? Confluence offers generous benefit packages for team members. As a growing, global organization, we are always looking for ways to ensure that our employees can access benefits that matter to them and their families. This includes: 🕚 Generous Time Off packages including additional half days with each public holiday in your location. 🌎 Global Career Development opportunities 🎊 Social Events 💵 Referral Bonus scheme - Upto $3,000 per successful referral 🚀 Plus many more! More about the Location We offer flexible working options for all employees. #LI-Hybrid Values We look for people who align with our 4 values. Integrity Face reality with honesty, courage and accountability Imagination Deal creatively with challenges and envision what the world could be Discipline Build good habits into reflexes which become a part of our life Service Committed to the success of others If you would like to find out more about a Career at Confluence, please apply today. If you believe that this job posting is noncompliant, please email us at [email protected] . Pre-Employment Screening Disclaimer As part of our recruitment process, we carry out identity checks on all candidates. Offers of employment are conditional upon the completion of satisfactory background checks prior to the commencement of work. These checks may include verification of identity, right to work in the UK, employment history, and other relevant pre-employment screening. Please note that additional checks may be required depending on the nature of the role and the jurisdiction in which the role is based or operates. These may include, but are not limited to, criminal record checks or financial background checks where applicable.