What are the responsibilities and job description for the Senior Systems Administrator position at Aptonet?
Systems Administrator III
Location: Indianapolis, IN (Onsite)
Position Type: Onsite
Contract Duration: 6 Months (Extension Possible)
Clearance Requirement: Ability to obtain required government clearance (as applicable)
Role Summar
yWe are seeking a Systems Administrator III to support enterprise endpoint management, Microsoft cloud technologies, and secure desktop operations within a mission-focused environment. This role is responsible for administering Microsoft Intune and Azure Entra environments, managing enterprise Windows endpoints, implementing security baselines, troubleshooting complex system issues, and improving day-to-day operational efficiency
.The ideal candidate will have strong Microsoft endpoint management experience, a security-first mindset, and the ability to work independently while supporting enterprise IT operations
.
Key Responsibiliti
- esAdminister and support Microsoft Intune-managed enterprise endpoin
- tsManage and troubleshoot Windows operating systems in an enterprise environme
- ntAdminister Azure Entra identity and endpoint security configuratio
- nsConfigure and manage enterprise desktop policies and security baselin
- esSupport endpoint asset management and lifecycle activiti
- esTroubleshoot desktop hardware, software, and peripheral device issu
- esSupport VoIP operations within enterprise environmen
- tsImplement and maintain IP/Port and URL-based network access contro
- lsEnsure compliance with enterprise security standards and regulatory requiremen
- tsUtilize Microsoft 365 tools to manage daily operational activiti
- esIndependently resolve technical issues and recommend operational improvemen
- tsMaintain system documentation and operational procedur
- esCollaborate with technical teams to support secure and reliable IT operatio
ns
Required Technical Ski
- llsExperience administering Microsoft Intune-managed environme
- ntsExperience with Microsoft Azure En
- traStrong Windows enterprise administration experie
- nceExperience supporti
- ng:Enterprise deskt
- opsEndpoint managem
- entPeripheral device managem
- entAsset managem
- entVoIP operati
- onsExperience administering network access controls includi
- ng:IP/Port filter
- ingURL-based filter
- ingKnowledge of enterprise security frameworks and compliance standards includi
- ng:CIS Benchma
- rksS
- TIGExperience working with Microsoft 365 to
- olsStrong troubleshooting and problem-solving ski
- llsAbility to work independently with minimal supervis
- ionStrong written and verbal communication ski
lls
Preferred / Nice-to-Have Sk
- illsExperience improving operational processes through automation or self-driven initiat
- ivesExperience working in regulated enterprise environm
- entsGrowth mindset with a proactive approach to continuous improve
- mentLocal to the Indianapolis, IN
area
Qualifications & Exper
- ienceBachelor's degree in Information Technology, Computer Science, or related field (or equivalent experi
- ence)Experience administering enterprise Microsoft endpoint environ
- mentsDemonstrated ability to independently resolve complex technical i
- ssuesStrong organizational and time management s
- killsAbility to support onsite operations in Indianapoli
s, IN
About the Team / C
ompanyThis role supports a secure enterprise environment focused on endpoint management, operational excellence, and compliance with government and enterprise security standards. Team members collaborate to maintain highly available, secure, and compliant IT infrastructure while supporting mission-critical opera