System Administrator III
Onward Energy
Current job opportunities are posted here as they become available. Subscribe to our RSS feeds to receive instant updates as new positions become available. Position Title: System Administrator III Reports To: Director – Technology Services Direct Reports: No Functional Unit: IT FLSA Status: Exempt Position Type: Full‑Time The Company Onward Energy is an independent power platform that owns and operates over 7 GW of utility‑scale wind, solar and natural gas generation projects across the U.S. Our Vision is to reliably power a sustainable future. Our Mission is that as North America’s premier independent power generator, we will deliver renewable and reliable power to our customers, opportunities to our employees, sustainable returns to the families who invest in us, and a better world to the next generation. With corporate Offices in Denver, New York and Charlotte, we are where renewable meets reliable. See for more information. THE CHALLENGE We are seeking a motivated, experienced and detail-oriented System Administrator III to join our IT Infrastructure team. This role will be responsible for the design, implementation and ongoing management of enterprise IT infrastructure including internal, hosted and cloud systems. You will work closely with other IT staff to ensure reliable and secure IT operations for all IT and OT environments at approximately 60 locations. We are a growing organization with a high rate of change, and this role requires someone adaptable and able to adjust to new technologies, equipment and processes. THE RESPONSIBILITIES Design, implement, administer and support enterprise server, virtualization, identity and cloud platforms across both IT and OT environments. Serve as a senior technical resource for complex systems issues, incidents and escalations, providing deep troubleshooting and root cause analysis. Administer and evolve Active Directory, Group Policy, DNS, DHCP and identity-related services in a hybrid environment. Design, administer and support Microsoft Azure services including virtual machines, storage, networking, identity integration and security controls. Manage and enhance Microsoft 365 / Office 365 services including Entra, Exchange Online, SharePoint Online, Teams and Intune. Implement and maintain device management and security solutions using Intune, including configuration, security and application deployment policies for Windows and mobile devices. Support and integrate SAML-based single sign-on (SSO) and identity federation with third‑party applications and services. Administer enterprise virtualization platforms (primarily Hyper‑V) and associated storage, backup and recovery systems. Partner closely with Network Administration and Cybersecurity teams to ensure secure system configurations, segmentation and compliance with security standards. Participate in and often lead systems‑related infrastructure projects, upgrades, migrations and refresh initiatives. Support integration or separation of systems during mergers and acquisitions, including identity consolidation, domain strategy, tenant integration and infrastructure alignment. Ensure systems are hardened, patched, monitored and compliant with company security, operational and audit requirements. Support OT infrastructure in collaboration with SCADA, engineering and operations teams, with a strong focus on reliability, safety and compliance. Develop, maintain and improve technical documentation, standards, diagrams, runbooks and disaster recovery procedures. Provide on‑call or after‑hours support as needed for critical infrastructure issues and planned maintenance activities. Mentor and provide technical guidance to system administrators and other IT staff. THE PROFILE TO SUCCEED 7+ years of progressive experience in system administration or infrastructure engineering roles. Preferred experience and qualifications: Strong expertise in Windows Server administration in enterprise environments Extensive hands‑on experience with Active Directory, Group Policy, DNS, DHCP and identity services Significant experience supporting Microsoft Azure IaaS components in production environments Strong knowledge of Microsoft 365 / Office 365, including Entra ID (Azure AD), Intune and core collaboration services Solid experience with virtualization platforms, particularly Hyper‑V. Experience implementing and supporting SAML-based SSO and identity federation Strong understanding of backup, disaster recovery, high availability and business continuity concepts Comfortable operating in environments with frequent change, evolving priorities and emerging technologies Excellent troubleshooting skills with the ability to work independently on complex technical challenges Strong written and verbal communication skills, with the ability to document and explain complex systems clearly Additional qualities that could make you stand out: Power generation industry experience Experience configuring enterprise network hardware Experience with or exposure to OT / ICs / SCADA systems and networks Experience integrating environments during M&A activities, including directory, tenant and infrastructure consolidation Familiarity with cybersecurity frameworks, audits and compliance requirements in regulated environments Experience supporting distributed infrastructure across many geographically dispersed sites THE TEAM The Onward Energy team is comprised of industry professionals who embrace collaboration, dedication, and hard work while also being down to earth. THE WORK ENVIRONMENT The position functions in a smoke and vape free professional office environment. The role routinely utilizes standard office equipment such as a laptop computer, phone, and scanner/photocopier. Onward Energy total rewards philosophy is motivated by a key tenet of People First and offers associates a comprehensive total rewards package which includes market‑competitive compensation, health and life insurance, and retirement savings benefits. If you require an accommodation for any part of the employment process due to a disability, please send an email to View email address on click.appcast.io. EEO Statement Onward Energy is an Affiramate Action Employer, Females/Minority/Veterans/Disabled/Sexual Orientation/Gender Identity. Please note this job description is not designed to cover or contain a comprehensive listing of all activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice. #J-18808-Ljbffr
$80.97k - $166.32k
...Responsibilities An Average Day: As the System Administrator (Systems) III you will lead the support for various operating systems, including VMware, Storage, and appliance-based systems, while taking on a significant responsibility for backup and restore support, security...SuggestedWeekend work$59.46k - $95.12k
...CBI System Administrator III Apply Salary $59,460.00 - $95,124.00 Annually Location Lakewood, CO Job Type Full Time Job Number RAA-CBI-00643 05/2026 Department Department of Public Safety Division Colorado Bureau of Investigation...SuggestedPermanent employmentFull timeTemporary workWork experience placementWork at officeLocal areaMonday to FridayFlexible hours- ...remote) Duration: 6-month contract (potential extension) Job Description A financial client of Insight Global is seeking a Systems Administrator III to support and maintain their IBMi (AS/400) environment. This individual will be responsible for day-to-day system...SuggestedContract workRemote workFlexible hoursWeekend work
- .... Key Responsibilities Utilize knowledge of criminal justice systems (CCIC, MBIS, etc.) to locate and analyze statistical data for... ...supporting information technology systems, including systems administration, technical support, hardware/software troubleshooting, server...SuggestedPermanent employmentTemporary workWork experience placementFlexible hours
- ...Job Description: IBMi Systems Engineer / Administrator Position Summary: Our client is seeking an experienced IBMi (AS/400) Systems Engineer/Administrator to support, maintain, and enhance their enterprise IBMi environment. This role is...SuggestedWeekend work
$42 - $52 per hour
...Job Summary Our client is seeking a Systems Engineer III to join their team. This position is located in Denver, Colorado. The role serves... ...to junior engineers regarding DNS protocols and systems administration. Qualifications 4+ years of hands‑on experience managing and...Hourly pay- ...Database Administrator - III Microsoft SQL Server DBA Primary responsibility is the ongoing support and administration of database software systems - Plan, coordinate, and administer database systems, including base definition, structure, documentation, long range requirements...Work experience placementWork at office
- Blue Origin is seeking a Mission Systems Engineer III in Denver, Colorado, to lead the development of complex space missions. The role involves supporting new product formulation and capturing key business opportunities in the aerospace sector. The ideal candidate should...Relocation package
- ...working to develop reusable, safe, and low-cost space vehicles and systems within a culture of safety, collaboration, and inclusion. Join... ...and increasing mobility on-orbit.As an RF Systems Engineer III within the **Advanced Capabilities** organization, you will support...Permanent employmentTemporary workRelocation package
- System Engineer III - New Glenn page is loaded## System Engineer III - New Glennlocations: Greater Seattle Area: Space Coast, FL: Denver, COtime type: Full timeposted on: Posted Yesterdayjob requisition id: R61121Application close date:Applications will be accepted on an...Permanent employmentTemporary workLocal area
$105k - $140k
...Anomaly is seeking a talented and driven Electrical Engineering Systems Engineer at the Senior or Mid‑career level to serve as the primary... ...COMPENSATION Colorado Base Salaries: Electrical Engineer III: $105,000-$140,000 Senior Electrical Engineer: $130,000-$170,000...Work at office$146k - $164k
...Overview We are seeking a Systems Administrator to join our Task Order proposal on the Defense Intelligence Agency’s Solutions for the Information Technology Enterprise III (SITE III). The Systems Administrator maintains smooth operation of multi-user computer systems...Contract workLocal areaMonday to FridayWeekend workAfternoon shift$158k - $190k
...Overview We are seeking a Senior Systems Administrator to join our Task Order proposal on the Defense Intelligence Agency’s Solutions for the Information Technology Enterprise III (SITE III). The Senior Systems Administrator maintains smooth operation of multi‑user computer...Full timeContract workTemporary workMonday to FridayWeekend workAfternoon shift- Lockheed Martin is seeking a Cyber Software Engineer III to lead the design and development of cyber-security solutions. This role requires extensive experience in software development, integration with hardware platforms, and strong knowledge of secure networking environments...
$96k - $128k
...Qualifications RESPONSIBILITIES The?VDI/Images Systems Administratoris expected to be able to... ...Certified -Windows Server Hybrid Administrator Associate Azure Administrator (AZ-104... ...the Information Technology Enterprise III (SITE III). TheVDI/ImagesSystems...Full timeContract workTemporary workLocal areaRemote workShift work$140k - $165k
...Professional Development and Educational Benefits Job Overview Tier III operations and maintenance (O&M) engineers to support the... ...support customer’s intra- and inter‑net and other data communications systems or segments of networked system; and by Providing tiered support...Temporary workWork experience placementCasual workFlexible hoursNight shift- Pond & Co. is seeking an Electrical Engineer III to join their Energy team in Tampa, Florida. This role focuses on a diverse portfolio of projects, especially in oil & gas and aviation fueling systems, along with opportunities in renewable energy. The ideal candidate should...
- Blue Origin LLC is looking for a Configuration Design Engineer III in Denver, Colorado. This role involves leading spacecraft configuration control for lunar missions and impacting the future of space exploration. Candidates should have a B.S. in Engineering, with at least...
$80.97k - $166.32k
...AMERICAN SYSTEMS in Lakewood, Colorado seeks a System Administrator III to lead support for operating systems including VMware and SAN Management. The role entails responsibilities from overseeing change management to conducting compliance audits. Candidates must be U...$80.97k - $166.32k
...AMERICAN SYSTEMS is seeking a System Administrator III to lead support for various operating systems, particularly VMware, while managing backup and restore support, security, and application support. This role requires U.S. Citizenship, extensive experience, and skills...$104k - $111k
...Overview We are seeking a Systems Administrator to join our Task Order proposal on the Defense Intelligence Agency’s Solutions for the Information Technology Enterprise III (SITE III). The Systems Administrator maintains smooth operation of multi‑user computer systems...Contract workTemporary workMonday to FridayWeekend workAfternoon shift- ...Onward Energy seeks a System Administrator III to manage and support enterprise IT infrastructure. The role requires 7+ years of experience, with strong expertise in IT administration including Windows Server, Active Directory, and Microsoft Azure. The ideal candidate...
$50 - $65 per hour
*IBMi (AS/400) Systems Engineer / Administrator* *Location:* Greenwood Village, CO *Contract:* 6-month contract (ability to extend) *Pay Rate:* $50-$65/hour We are seeking an experienced *IBMi (AS/400) Systems Engineer / Administrator* to support a mission-critical...Contract workTemporary workRemote workWeekend work- Belcan Corporation is seeking a Structural Engineer III based in Englewood, CO. In this role, you will leverage your expertise to design, evaluate, and certify innovative products, from advanced mission payloads to air and ground vehicles. Candidates must have a Bachelor...
$42 - $52 per hour
KellyMitchell Group is looking for a Systems Engineer III to join their team in Englewood, Colorado. This role focuses on managing DNS infrastructure within a high-velocity lab environment, ensuring agility and stability for complex research and development. Responsibilities...Hourly pay$100k - $135k
...ambitious results It’s the people. Our team is our competitive advantage and we are better together YOUR MISSION We are seeking Level 3 Systems Engineer to join our team in developing and integrating cutting‑edge aerospace and defense systems. In this role you will play a...Permanent employmentFor subcontractorFlexible hours- ...Applications, the IT Applications Specialist III – HRIS provides support of business-... ...Installs applications in the development and system test environments for Development and UAT testing. Performs system administration by writing utilities and monitoring information...Work experience placementWork at office
- ...DNS architecture, operations, and troubleshooting Experience with Infoblox is a plus, but not required Proven ability to lead projects and mentor team members Strong Systems Engineer or Network Engineer background (5+ years experience) #J-18808-Ljbffr Insight GlobalHourly pay
- A healthcare organization in Colorado is seeking an experienced IT PACS Systems Administrator to manage and optimize the PACS and imaging infrastructure. You will oversee system health, perform complex configurations, and mentor junior staff. The ideal candidate should...
- ...A leading sensor and networking solutions company is seeking an experienced Database Administrator to manage Oracle databases in an on-site role in Highlands Ranch, Colorado. The successful candidate will have over 5 years of experience with Oracle 11g, handling installations...
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to System Administrator III. Be the first to apply!
- IT infrastructure administrator Denver, CO
- microsoft systems administrator Denver, CO
- office 365 and sharepoint system administrator Denver, CO
- systems administrator Denver, CO
- application system administrator Denver, CO
- system admin Denver, CO
- enterprise administrator Denver, CO
- IT administrator Denver, CO
- server administrator Denver, CO
- computer systems administrator Denver, CO


