Systems Administrator Sr

Dayforce is a global human capital management (HCM) company headquartered in Toronto, Ontario, and Minneapolis, Minnesota, with operations across North America, Europe, Middle East, Africa (EMEA), and the Asia Pacific Japan (APJ) region.

Our award-winning Cloud HCM platform offers a unified solution database and continuous calculation engine, driving efficiency, productivity and compliance for the global workforce.

Our brand promise - Makes Work Life Better™ - Reflects our commitment to employees, customers, partners and communities globally.

About the opportunity

The Senior Systems Engineer is responsible for the design, delivery, and operation of enterprise infrastructure supporting virtual desktop and application services. The role provides senior technical leadership for Omnissa Horizon 8 and related platform services across cloud and hybrid environments. This engineer ensures availability, performance, security, resiliency, and operational readiness while partnering with Cloud Hosting Operations, application, network, cybersecurity, and end-user computing teams.

Dayforce is a global human capital management (HCM) company headquartered in Toronto, Ontario, and Minneapolis, Minnesota, with operations across North America, Europe, the Middle East, and Africa (EMEA), and the Asia Pacific Japan (APJ) region. Our award-winning Cloud HCM platform offers a unified solution database and continuous calculation engine, driving efficiency, productivity, and compliance for the global workforce. Our brand promise – Makes Work Life Better™ – reflects our commitment to employees, customers, partners, and communities globally.

Location: This role is remote and can be performed in Canada or the United States.

What you’ll get to do

• Horizon Platform Engineering: Design, implement, administer, and support Omnissa Horizon 8 virtual desktop and published application environments.
• Horizon Architecture: Own the lifecycle and configuration of Horizon Connection Servers, Unified Access Gateways, Horizon Agents, desktop pools, application pools, entitlements, and policies.
• Infrastructure Integration: Integrate Horizon with VMware vSphere, Active Directory, DNS, certificates, load balancing, storage, network services, and cloud infrastructure.
• Availability and Recovery: Design and validate high-availability, backup, disaster recovery, and capacity strategies for Horizon and supporting infrastructure.
• Performance and User Experience: Monitor platform health, session performance, logon times, capacity, and user experience; resolve root causes and improve service reliability.
• Security and Compliance: Apply secure access, least-privilege, network segmentation, certificate, logging, vulnerability remediation, and hardening controls.
• Automation and Lifecycle Management: Automate configuration, deployment, image lifecycle, and operational tasks through PowerShell, REST APIs, Terraform, Ansible, or equivalent tools.
• Incident Leadership: Lead technical troubleshooting for complex infrastructure incidents, provide escalation support, and complete root cause analysis and corrective actions.
• Cloud Infrastructure Operations and Technical Leadership: Operate Azure, AWS, Windows Server, VMware, and supporting infrastructure services; define standards, mentor engineers, maintain documentation, and coordinate change and maintenance activities.

Skills and experience we value

• Bachelor’s degree in Computer Science, Information Technology, or a related field, or equivalent experience.
• Seven or more years of progressive systems engineering or infrastructure operations experience in enterprise production environments.
• Demonstrated hands-on experience designing, implementing, and operating Omnissa Horizon 8 or VMware Horizon environments.
• Strong experience with Horizon Connection Server, Unified Access Gateway, Horizon Agent, desktop pools, published applications, and entitlements.
• Strong experience with VMware vSphere, AWS, Azure, Windows Server, Active Directory, Group Policy, DNS, and certificate management.
• Strong understanding of TCP/IP, DNS, VPN, load balancing, firewall policy, secure remote access, and troubleshooting across virtual desktop protocols.
• Experience with enterprise storage, backup, recovery, and disaster recovery services for cloud and hybrid infrastructure.
• Experience with monitoring, alerting, logging, performance analysis, capacity planning, and availability management in a 24x7 environment.
• Experience with automation and infrastructure-as-code using PowerShell, REST APIs, Terraform, Ansible, or comparable tools.
• Demonstrated ability to lead complex incident response, root cause analysis, change implementation, and technical problem resolution.
• Strong communication, documentation, stakeholder management, and technical leadership skills.

What would make you stand out

• Omnissa Horizon, VMware, Microsoft, AWS, or Azure certification is an asset.
• Familiarity with SOC 2, ISO 27001, HIPAA, or similar security and compliance requirements is an asset.

What’s in it for you

Dayforce is fueled by the diversity of our talented employees. We are an equal opportunity employer and consider and embrace ALL individuals and what makes them unique. We believe our employees should be happy and healthy, with peace of mind and a sense of fulfillment.

We encourage individuals to apply based on their passions.

Dayforce employees and their families are eligible to participate in the following benefits programs: medical, dental, vison, and life insurance. Dayforce employees are also eligible to participate in a 401k plan (plus match). Employees also receive unlimited Time Away From Work (in lieu of accrued vacation time), 10 paid US holidays, up to 80 hours of paid sick time and 17 weeks of paid parental leave, subject to the terms of the applicable policy or program.

With a commitment to community impact, including volunteer days and our charity, Dayforce Cares we provide opportunities for you to thrive both in your career and personal life. Our focus is not just on your job but on supporting you to be the best version of yourself.

About the Salary Ranges

Please note that the salary range mentioned in this job description should serve simply as a guide. The final compensation offered may vary based on a variety of factors, including bonuses and/or incentives, or a candidate’s experience, skills, budget and location. Our company is committed to providing a fair, equitable, and competitive package that reflects the value an individual brings to the organization.

Fraudulent Recruiting

Beware of fraudulent recruiting. Legitimate Dayforce contacts will use an @dayforce.com email address. We do not request money, checks, equipment orders, or sensitive personal data during the recruitment process. If you have been asked for any of the above, or believe you have been contacted by someone posing as a Dayforce employee, please refer to our fraudulent recruiting statement found here: https://www.dayforce.com/be-aware-of-recruiting-fraud

Dayforce actively monitors all job applications to ensure authenticity. Submissions determined to be fraudulent or misleading will be declined from the recruitment process