Senior Systems Administrator
About Us
Thrive delivers upon the promise of technology by enabling our clients’ digital transformation journeys with best practices on an AI, cybersecurity and cloud focused NextGen managed services platform. Thrive’s culture is powered by diverse talent, big ideas, and a customer-first mindset—and it’s what truly sets us apart. Thrive is built for people who want more than a weekday routine. If you’re hungry to grow, eager to tackle new challenges and ready to drive real impact in a rapidly expanding environment, then welcome to THRIVE! Position Overview Senior Systems Administrators provide remote support across diverse, multi-tenant environments, handling escalated incidents and complex service requests. The role involves advanced troubleshooting, implementing changes, coordinating with other teams, and serving as an escalation point for engineers within the team, while maintaining clean client communication. Thrive seeks technically proficient professionals with strong verbal and written skills, a desire to learn across all aspects of IT, and the ability to thrive in a fast-paced, collaborative environment with broad technical exposure and opportunities for growth. ResponsibilitiesTake technical ownership of assigned clients, including escalated issues, ensuring resolution of infrastructure- and business-critical problems, often coordinating with clients and their vendors. Perform advanced support and troubleshooting for escalated incidents, including network, server, cloud, business application, and workstation issues. Evaluate client infrastructure, systems, software, and processes to identify deficiencies and recommend improvements or projects to meet client needs. Lead major incident outages, conduct post-incident reviews, and drive corrective actions, including root cause analysis and documentation. Identify systemic and pervasive issues, perform trend analysis, and implement permanent solutions to prevent future problems. Design and validate multi-tenant solutions, including identity management, networking, security, disaster recovery, zero trust, hybrid AD/Entra, Intune baselines, conditional access, identity governance, complex networking/firewall policies, SASE/SWG, and SIEM integrations. Benchmark, tune, and optimize systems for performance, capacity, and scalability. Create and maintain documentation, network diagrams, change control approvals, and knowledge base content; write and review changes for complex tasks following established processes and industry best practices. Develop and maintain automation and operational tools, including PowerShell modules, RMM policies, deployment pipelines, compliance checks, and monitoring improvements. Deliver training, mentor junior engineers, and contribute to team readiness and process improvement initiatives. Required Qualifications 7+ years in IT operations/engineering with MSP or large enterprise experience. Expertise in identity, networking, cloud, security, and automation. Deep experience with Windows Server, Active Directory, Azure AD/Entra, Exchange/M365 admin, Intune, and Virtualization. Proven leadership in major incidents and complex transformations. Strong documentation and stakeholder communication; executive-ready briefings. Excellent written and verbal communication, documentation, and time-management skills. Ability to work independently and collaboratively in a team environment. Availability to work after hours and participate in on-call rotations as required. Excellent customer service skills Optional Qualifications:Willingness to visit nearby client sites when necessary, with the understanding that on-site visits may not always be required. Preferred Skills & CertificationsMicrosoft Certified: Azure Administration Windows Server System Administration Microsoft 365 Administration Identity and Access Administrator Azure Solutions Architect VMware: VCP, VCAP, VCDX SAN/NAS Administration Mobile Device Administration/Management Remote Computing (Microsoft RDS, Citrix) Email Routing, Protocols, Security DNS Administration ITIL v4 Leader/Strategist. Base Salary Range: $100-115k Actual compensation within the range will be dependent upon the individual's skills, experience, qualifications and location, and applicable employment laws. Thrive is committed to providing fair and equitable compensation practices for all employees and strive to provide competitive salaries that reflect the value and skills each team member brings to our organization. Salaries are determined according to the job's scope, market data, location, and the candidate’s qualifications, including experience and relevant education. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status or any other legally protected status. Apply To This Job