Senior Systems Engineer

arctiq; Denver (CO); On-site; USD 120,000 - 160,000; Full time

Job summary

Arctiq is seeking an accomplished Senior Systems Engineer to lead design, implementation, and optimization of enterprise systems and compute environments. You will maintain highly available, secure infrastructure while identifying modernization and automation opportunities across on‑premises and cloud platforms.

The role requires hands-on expertise in Windows Server, VMware, Citrix VDI, security hardening, and PowerShell, with collaboration across IT teams to meet business needs.

Qualifications

• 10+ years as a Systems Engineer in enterprise environments.
• Experience designing, building, securing, and managing virtualization technologies (VMware ESXi, vCenter) and hyperconverged infrastructure.
• Proven ability to manage and administer Citrix VDI, load balancing, and SSL certificate management.

Responsibilities

• Design, implement, and manage core systems (Exchange, AD, PKI, identity platforms).
• Administer Azure and Office 365 cloud services.
• Maintain and optimize on-prem and cloud infrastructure for reliability, security, and scalability.
• Develop technical documentation and runbooks; support on-call rotations.

Skills

Windows Server

VMware ESXi

Citrix VDI

Azure

Entra ID

S3 Storage

Backup Tech

PowerShell

Networking

Security Hardening

Active Directory

M365

Education

Bachelor’s degree in CS/CIS

Tools

SolarWinds

LogicMonitor

Splunk

Aria

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 accomplishedSenior 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.