Senior IT Infrastructure Administrator, Security

Style Analytics; Montreal (administrative region); Hybrid; CAD 110,000 - 150,000; Full time

Benefits offered by this job

Time Off packages with holidays

Global Career Development

Social Events

Referral Bonus scheme

Plus many more!

Job summary

Confluence is seeking a senior infrastructure security specialist in Canada (Toronto or Montreal) with hands-on ownership of vulnerability remediation and secure operations across Windows and Linux systems.

You will manage certificate lifecycles, work with PAM and Cloudflare, and support logging platforms like Splunk or Sumo Logic, collaborating with Cybersecurity and infrastructure teams to improve overall security posture.

Qualifications

• 8+ years of experience in enterprise systems administration or IT infrastructure.
• 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.
• 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).
• 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.

Responsibilities

• Take ownership of vulnerability remediation across enterprise systems and improve remediation delivery at scale.
• Improve patching cadence and secure operational practices across infrastructure environments.
• Administer and harden Windows Server environments and work with Linux administration.
• Support certificate lifecycle management, including TLS/PKI renewals and operations.
• Work with PAM solutions and Cloudflare, and support logging/monitoring platforms.
• Collaborate with Cybersecurity and infrastructure stakeholders to implement controls and remediate findings.

Skills

Windows Server

Active Directory

DNS

Authentication

Certificates

PAM

Cloudflare

PowerShell

Scripting

Security

Vulnerability remediation

Tools

Splunk

Sumo Logic

Job description

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.

Location - Canada - Toronto or Montreal

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.

Applicants must be within a commutable distance (within 2 hours or 80 miles) of one of the listed offices

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

Benefits

• 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.

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 [e-mail].

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.

As a leading global technology solutions provider to the investment management industry, Confluence helps clients solve complex investment data challenges across the front, middle and back office. Headquartered in Pittsburgh, PA, Confluence services over 1000 clients in 40 countries, with locations across Europe, North America, South Africa, Australia and Asia.