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Network & Systems Engineer – Infrastructure Operations
The Missing Link. Support and maintain enterprise Cisco switching, routing and wireless environments.
Core Competencies
Role fitCore Competencies
Use this summary to align your resume positioning with the role.
Demonstrates extensive experience in infrastructure engineering and systems administration, with a strong focus on Cisco networking, Active Directory management, and endpoint management technologies. Proven ability to troubleshoot complex network issues and manage third-party service providers while ensuring operational effectiveness and service continuity.
Highest-signal resume keywords
Cisco NetworkingActive Directory AdministrationSCCM and Intune SupportInfrastructure Migration ExperienceITIL-Aligned Incident Management
ATS Keywords
Tailor your resumeApplicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills
Cisco SwitchingRouting TechnologiesWireless TechnologiesWindows Server AdministrationDNS ManagementDHCP ManagementGroup Policy AdministrationMicrosoft 365 SupportConditional Access ManagementInfrastructure Automation with PowerShell
Soft Skills
Stakeholder CommunicationVendor ManagementProblem-SolvingDocumentation SkillsIndependent Work
Tools & Technologies
ManageEngineEnterprise ITSM PlatformsMFA SolutionsNPSDFS
Certifications & Qualifications
CCNACCNPMicrosoft Certified: Windows Server Hybrid Administrator AssociateMicrosoft Endpoint Administrator AssociateITIL Foundation
Industry Keywords
Infrastructure EngineeringSystems AdministrationNetwork EngineeringEnterprise TechnologyHybrid Cloud Environments
Tech Stack
Tools & technologiesCloudDNSITSMSwitching
About the role
Key responsibilities & impact- Support and maintain enterprise Cisco switching, routing and wireless environments.
- Troubleshoot complex LAN, WAN, wireless and connectivity issues.
- Perform root cause analysis and implement corrective actions.
- Monitor network performance, availability and capacity.
- Administer Active Directory environments, including Domain Controllers, Group Policy, DNS, DHCP, and Sites & Services.
- Support Microsoft 365 identity and access services.
- Administer MFA, NPS and Conditional Access controls.
- Maintain critical infrastructure and core platform services.
- Operate and maintain network monitoring solutions such as ManageEngine or equivalent platforms.
- Investigate alerts and incidents, driving issues through to resolution.
- Manage incidents, problems and changes using an enterprise ITSM platform.
- Contribute to continuous service improvement initiatives.
- Support SCCM and Intune environments.
- Manage patching, software deployment and endpoint compliance activities.
- Maintain endpoint management standards and operational effectiveness.
- Act as a key technical liaison between internal stakeholders and managed service providers.
- Coordinate resolution of operational issues and service delivery concerns.
- Ensure third-party providers meet agreed service expectations.
- Deliver server upgrade and migration activities.
- Perform file server migration, cutover and decommissioning tasks.
- Complete DFS migration activities while maintaining service continuity.
- Support infrastructure modernisation initiatives and operational improvements.
- Develop and maintain technical documentation, runbooks and operational procedures.
- Ensure infrastructure records remain current and accurate.
- Provide operational knowledge transfer and continuity support.
- Work within complex enterprise environments, taking ownership of infrastructure issues from investigation through to resolution.
- Balance operational responsibilities with project-based deliverables.
Requirements
What you’ll need- 5+ years of experience in infrastructure engineering, systems administration, network engineering, or related enterprise technology roles.
- Strong hands-on Cisco networking experience.
- Proven experience supporting Microsoft infrastructure environments.
- Proven experience administering Active Directory, DNS and DHCP services.
- Experience supporting endpoint management technologies including SCCM and Intune.
- Experience performing infrastructure migrations and upgrade activities.
- Strong stakeholder communication and vendor management capabilities.
- Ability to work independently and manage competing operational priorities.
- Proven experience supporting Cisco enterprise networking environments.
- Strong experience across switching, routing and wireless technologies.
- Hands-on experience administering Windows Server environments.
- Strong Active Directory administration experience.
- Practical knowledge of DNS, DHCP, Group Policy and Microsoft identity services.
- Experience supporting Microsoft 365 and Conditional Access environments.
- Experience delivering Windows Server migration and upgrade activities.
- Strong understanding of DFS namespaces and replication.
- Experience supporting SCCM and/or Microsoft Intune environments.
- Familiarity with network monitoring platforms such as ManageEngine.
- Strong troubleshooting and fault-finding capability across infrastructure technologies.
- Experience working within ITIL-aligned environments.
- Strong incident, change and problem management experience.
- Experience working with enterprise ITSM platforms.
- Proven ability to coordinate and manage third-party service providers.
- Exceptional documentation and technical writing skills.
- Desirable: CCNA certification.
- Desirable: CCNP certification.
- Desirable: Microsoft Certified: Windows Server Hybrid Administrator Associate (AZ-800 / AZ-801).
- Desirable: Microsoft Endpoint Administrator Associate (MD-102).
- Desirable: ITIL Foundation certification.
- Desirable: Experience working within highly regulated enterprise environments.
- Desirable: Experience supporting hybrid cloud environments.
- Desirable: Experience with infrastructure automation and scripting using PowerShell.
Benefits
Comp & perks- Opportunity to work within a large-scale enterprise technology environment.
- Exposure to complex networking, infrastructure and identity platforms.
- Opportunity to contribute to meaningful infrastructure transformation initiatives.
- Access to future contract opportunities through The Missing Link's growing Staff Augmentation Practice.
- Dedicated contractor care and onboarding support throughout your engagement.
- Exposure to leading Microsoft and Cisco technologies.
- Potential contract extensions and future engagements based on project requirements and performance.
- Backing of an established and award-winning technology and cyber security organisation.