Senior Systems Engineer in Aurora

Energy Jobline is the largest and fastest growing global Energy Job Board and Energy Hub. We have an audience reach of over 7 million energy professionals, 400,000+ monthly advertised global energy and engineering jobs, and work with the leading energy companies worldwide.

We focus on the Oil & Gas, Renewables, Engineering, Power, and Nuclear markets as well as emerging technologies in EV, Battery, and Fusion. We are committed to ensuring that we offer the most exciting career opportunities from around the world for our jobseekers.

Job DescriptionJob Description

Our valued client is seeking a Senior Systems Engineer (Principal-Level) for their team in Aurora, CO. This is a contract opportunity with the possibility of extension. All work will be performed on-site.

We are seeking a very senior, hands-on Sr. Systems Engineer for a contract engagement to provide deep technical expertise across core enterprise infrastructure.

This role is designed for a seasoned individual contributor who can quickly assess complex environments, architect practical solutions, and resolve high-impact issues with

minimal ramp-up.

This is not a junior augmentation role. You will be brought in as a trusted technical authority to stabilize, improve, and guide critical systems. You will mentor and train the

current system administrators on the existing technologies.

What You’ll Do

Advanced Systems Engineering andArchitecture

• Serve as a senior technical expert across the enterprise, Microsoft, and infrastructure

platforms

• Design, assess, and improve architectures involving:
• Microsoft 365 (Exchange, Entra ID/Azure AD, Teams, SharePoint)
• Active Directory (on-prem and hybrid)
• DNS, , and authentication services
• Windows Server platforms
• VMware virtualization environments
• Enterprise storage systems (SAN/NAS)
• Identify architectural risks and recommend pragmatic, supportable improvements

High-Level Troubleshooting & Incident Resolution

• Understand and document existing architecture; suggest improvements for

efficiency and security

• Act as an escalation point for complex, multi-layer infrastructure issues
• Troubleshoot across OS, , virtualization, and storage layers
• Perform root-cause analysis and implement durable fixes
• Quickly stabilize environments experiencing reliability or performance challenges

Operational Impact

• Improve documentation, standards, and operational consistency
• Partner with internal teams (security, networking, cloud, application) to unblock

progress

• Transfer knowledge to internal staff as needed

Required Experience & Skills

• 10-15+ years of hands-on enterprise systems engineering experience
• Deep, hands-on practical expertise in:
• Microsoft 365
• Active Directory (design, replication, trusts, GPOs)
• DNS and services
• Windows Server
• VMware
• Enterprise storage concepts and platforms
• Proven ability to diagnose and resolve complex infrastructure issues quickly
• Strong architectural judgment and systems thinking
• Excellent communication skills; able to explain complex issues clearly
• Comfortable operating independently with limited oversight

Ideal Contractor Profile

• Principal- or lead-level individual contributor background
• Has been “the escalation point” in prior environments
• Thrives in ambiguous or high-pressure situations
• Able to deliver value immediately in a contract setting

Contract Details

• Opportunity for extension based on performance and business need
• No expectation of people management

Compensation for this position starts at $60.00/hour and includes optional medical, dental, vision, 401k, PTO, and holiday benefits.

If you are interested in applying for this job please press the Apply Button and follow the application process. Energy Jobline wishes you the very best of luck in your next career move.