Senior Systems Engineer

Arctiq; Denver (CO); On-site; USD 120,000 - 180,000; Full time

Job summary

Arctiq is seeking a Senior Systems Engineer to lead design, implementation, and optimization of our enterprise systems and compute environments. You will ensure highly available, secure infrastructure and collaborate with multiple teams to modernize and automate across on-prem and cloud platforms.

The role requires hands-on expertise with Windows Server, Active Directory, VMware, Citrix VDI, Azure, and security hardening, with opportunities for growth and travel as needed in a

Qualifications

• Minimum 10 years as a Systems Engineer in enterprise environments.
• Minimum 10 years designing and managing VMware virtualization and hyperconverged infrastructure.
• Experience with Exchange Online and Microsoft 365.
• Experience with Azure and Entra ID.
• Expertise in Windows Server, AD, PKI, and networking.

Responsibilities

• Design, implement, and manage core enterprise systems, including Exchange, AD, and virtualization infra.
• Administer cloud platforms such as Azure and Office 365.
• Manage Citrix VDI, load balancers, and SSL certificates.
• Monitor, maintain, and optimize system performance for reliability and security.
• Provide escalation support for complex technical issues.
• Create and maintain technical docs, runbooks, and change records.
• Participate in on-call rotation and after-hours support as needed.
• Ensure security practices and compliance across teams.

Skills

Active Directory

VMware ESXi

Azure

Citrix VDI

PowerShell

Security hardening

Networking

Documentation

On-call

Education

Bachelor's degree in Computer Science or related

Tools

Veeam

Cohesity

Rubrik

Job description

Arctiq is a global, intelligence-driven technology services company delivering professional and managed services across Hybrid Cloud Infrastructure, Networking & Connected Experiences, Cybersecurity, Data & AI, Autonomous Operations & Intelligence, and Enterprise Service Management. We help organizations operate, secure, and modernize complex environments by unifying infrastructure, networking, data, security, automation, and observability under a single, integrated operating model. Our work focuses on helping customers reduce operational friction, improve resilience, and make better, faster decisions as their environments evolve. Arctiq builds on decades of industry expertise and a customer-centric ethos to deliver exceptional value to clients across diverse industries.

This is a contract-to-permanent opportunity with one of Arctiq's clients. Candidates must be able to work permanent for any US employer and located in one of these states: AZ; CA; CO; CT; DC; FL; IL; IN; MA; MD; ME; NH; NJ; NY; PA; TN; TX; UT; VA; VT.

We are seeking an accomplished Senior Systems Engineer to take a leading role in the engineering, administration, and ongoing optimization of the firm’s enterprise Systems and Compute environment. This position will be responsible for maintaining highly available, secure, and efficient infrastructure while helping identify opportunities to modernize, automate, and improve the organization’s technology environment.

The Senior Systems Engineer will work closely with the Manager of Systems and other technology teams to ensure infrastructure solutions are aligned with business requirements, enterprise architecture, and operational standards. This role requires a strong combination of hands‑on technical expertise, problem‑solving ability, and experience managing complex enterprise environments.

Responsibilities

• Collaborate with the team to design, implement, and manage the firm’s core systems, including: Exchange, physical and virtual servers, Active Directory and Group Policy, Certificate Services, authentication platforms, including compute, networks, storage, and remote access/mobility solutions.
• Administer and support cloud‑based platforms and services such as Microsoft Azure and Office 365
• Manage and administer Citrix VDI, Load balancing systems and SSL Certificate Management.
• Monitor, maintain, and optimize system performance to ensure reliability, scalability, and security.
• Perform routine, scheduled, and long‑term maintenance, as well as user‑facing service tasks, to maintain a high standard of operational excellence.
• Provide expert‑level escalation support for complex technical issues.
• Develop and maintain comprehensive technical documentation, including processes, procedures, troubleshooting guides, training materials, and change management records.
• Participate in the on‑call rotation to provide after‑hours support as needed.
• Be available for occasional overtime, non‑standard hours, or travel in support of projects and operational needs. Ensure integrations are secure, efficient, and aligned with enterprise architecture and governance standards.
• Implement security best practices and ensure compliance with relevant security protocols and regulations in collaboration with Information Security, Applications, and Infrastructure teams.
• Collaborate with appropriate cross‑functional technology teams to complete risk assessments and develop strategies to mitigate potential security vulnerabilities.
• Maintain documentation of data flows, API endpoints, schemas, and integration logic.
• Contributes to the selection, implementation, and optimization of integration platforms.
• Support data quality, integrity, and reconciliation efforts across systems.

Required Qualifications

• Minimum 10 years as a Systems Engineer with Microsoft Server expereince within enterprise environments.
• Minimum 10 years designing, building, securing, and managing virtualization technologies using the VMware stack (ESXi, vCenter) and Hyperconverged Infrastructure (Nutanix, Dell VxRail, HPE).
• Experience managing and administering Citrix VDI, Load balancing systems and SSL Certificate Management.
• Experience with mail and messaging within Exchange Online
• Experience with Microsoft Azure and Entra ID
• Experience with enterprise storage technologies Block (SCSI/NVMe), File (CIFS/NFS), and Object (S3).
• Experience working with enterprise backup and recovery technologies (Rubrik, Cohesity, Veeam).
• Proven ability to manage enterprise-wide systems/compute infrastructure and multiple infrastructure components simultaneously.
• Expert proficiency in Microsoft Windows-based enterprise environments, including Active Directory, M365, PKI design, support, and administration.
• Advanced knowledge of VMware, Windows Server, TCP/IP, DNS, and related protocols.
• Strong understanding of network design and management (LAN/WAN, MPLS, VPN, VLAN, Wi‑Fi).
• Solid working knowledge of encryption technologies and cybersecurity risk mitigation/system hardening techniques.
• Advanced skills in PowerShell scripting for system utilities, automation, and administration.
• Proficient in monitoring solutions (SolarWinds, LogicMonitor, Splunk, Aria).

Education

• Bachelor’s degree in computer science, Computer Information Systems, or a related field preferred; advanced degrees a plus.

Arctiq is an equal opportunity employer. If you need any accommodations or adjustments throughout the interview process and beyond, please let us know. We celebrate our inclusive work environment and welcome members of all backgrounds and perspectives to apply.

We thank you for your interest in joining the Arctiq team! While we welcome all applicants, only those who are selected for an interview will be contacted.