Senior Network and Infrastructure Engineer Robert Half - 3.9 Troy, MI Job Details Temporary | Contract $66.50 - $77.00 an hour 21 hours ago Benefits Disability insurance Dental insurance 401(k) Vision insurance Qualifications Telecommunications network troubleshooting FTP Project team coordination Authentication IT governance Network documentation Content creation for technical audiences Telecommunications network configuration documentation IT user and group management GPO IT operations Team leadership Technical documentation 5 years Network security implementation Windows Technical solutions implementation Production systems Cisco routers/switches implementation Change management for system development Cloud service support System validation BGP Vendor communication Windows support Network routing Commissioning phase involvement Cloud network integration Senior level Cross-functional collaboration Full Job Description We are looking for an experienced Senior Network and Infrastructure Engineer to join our team in Troy, Michigan on a Contract assignment. In this role, you will provide hands-on technical leadership across enterprise infrastructure, network operations, and systems support while helping ensure stable, secure, and well-documented environments. This position works closely with internal technology teams, external partners, and service providers to coordinate implementation efforts, resolve complex issues, and support operational readiness.

Responsibilities:

Lead and support infrastructure implementation activities, including planning, execution, testing, and post-deployment validation across enterprise environments. Administer and troubleshoot core Microsoft services such as Active Directory, Windows Server, Group Policy, domain services, and authentication-related components. Coordinate network and infrastructure work with internal teams, vendors, and managed partners to keep project milestones on track and reduce disruption to business operations. Verify connectivity across on-premises, cloud-based, hosted, and third-party systems, resolving issues involving routing, firewalls, and secure access paths. Assist with application and platform readiness by reviewing dependencies, integrations, certificates, scheduled processes, and supporting server environments. Create and maintain technical diagrams, configuration records, runbooks, test results, rollback procedures, and other operational documentation. Participate in cutover preparation, deployment rehearsals, go-live activities, and stabilization support following implementation events. Identify technical risks, escalate blockers when needed, and contribute to change control, security, and governance practices throughout delivery activities. 5+ years of experience in network engineering, infrastructure support, or systems administration roles. Strong hands-on expertise with Cisco networking technologies, including Cisco routers, Cisco ASA, and Border Gateway Protocol (BGP). Experience supporting enterprise Windows environments, including Active Directory, Group Policy, and Windows Server administration. Proven ability to troubleshoot network connectivity, firewall behavior, routing issues, and secure file transfer processes such as FTP. Familiarity with infrastructure validation, technical documentation, and production support in complex enterprise environments. Ability to work effectively with cross-functional IT teams, third-party vendors, and managed service providers. Strong written and verbal communication skills with the ability to document processes and communicate technical issues clearly. Technology Doesn't Change the World, People Do. ® Robert Half is the world's first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles. Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app and get 1-tap apply, notifications of AI-matched jobs, and much more. All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information. © 2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking "," you're agreeing to Robert Half's Terms of Use and Privacy Notice .