Rebel Athletic · 1 day ago
Senior System Administrator
Carrollton, TX
Contract
Onsite
Senior Level
5+ years expRebel Athletic is a rapidly growing cheer and performance wear brand that emphasizes creativity and individuality. They are seeking a Senior System Administrator to lead IT operations, mentor junior team members, and maintain a secure and scalable technology environment.
E-CommerceFashionLifestyleRetail
Responsibilities
Lead and mentor System Administrators and Helpdesk team members
Oversee daily IT operations, escalations, and workload prioritization
Develop IT processes, SOPs, documentation, and training materials
Serve as the top technical escalation point for system and infrastructure issues
Manage Microsoft 365 including Exchange Online, Teams, SharePoint, and OneDrive
Administer Entra ID identity management (MFA, SSO, conditional access, governance)
Oversee Intune device management and user lifecycle administration
Lead cybersecurity initiatives including phishing and spam awareness training
Manage email security and threat protection platforms
Conduct vulnerability assessments, patch compliance, and system hardening
Administer Shopify accounts, permissions, and platform integrations
Manage Freshservice workflows, automations, and asset management
Support additional SaaS platforms and integrations across the business
Lead upgrades, migrations, and automation projects across IT systems
Maintain IT documentation, standards, and architecture records
Provide Tier 2 and Tier 3 advanced technical support to the organization
Qualification
Required
5+ years of Systems Administration experience, including leadership responsibilities
Expertise with Microsoft 365, Entra ID, Intune, Windows/macOS, and security governance
Experience administering phishing/spam training tools, Freshservice, and Shopify
Strong communication, leadership, problem-solving, and escalation-management skills
Valid driver's license if travel between Rebel Athletic locations is required
Preferred
PowerShell scripting or automation experience
Experience with Zero Trust architecture, MFA, or conditional access design
Exposure to SIEM/SOC operations
Relevant Microsoft or security certifications
Benefits
Full benefits
401(k)
PTO
Performance bonuses
Company
Rebel Athletic
Rebel Athletic is an online store that sells hoodies, shirts, leggings, pants, capris, swimwear, shoes, bags, scarves, and accessories.
201-500 employees
H1B Sponsorship
Rebel Athletic has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (4)
2024 (1)
2023 (3)
2022 (4)
2020 (4)
Funding
Current Stage
Growth StageTotal Funding
unknownKey Investors
Main Post Partners
2025-03-20Private Equity
Leadership Team
Karen Noseff Aldridge
Chief Executive Officer
Frank Dong, CPA
CFO
Recent News
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2025-03-21
Company data provided by crunchbase