Senior System Administrator

About Rebel Athletic

At Rebel Athletic, we don’t just make apparel. We create confidence, empower performance, and redefine what it means to wear your passion.

Since 2012, we’ve disrupted the industry as the fastest growing cheer and performance wear brand in the world. Recognized by global brand consultancy Eat Big Fish as a Challenger Brand to Watch, Rebel is known for bold design, innovation, and unmatched custom craftsmanship.

From couture-inspired uniforms to elevated athleisure, we blend high fashion with high function. Every piece is built for athletes and performers who want to stand out, not blend in.

Founded by Karen Aldridge, Rebel started as a bold idea and grew into a global movement that celebrates creativity, individuality, and empowerment.

Our business is rooted in a made-to-order team and group orders. We partner directly with teams, gyms, studios, and program owners to design and produce custom uniforms, costumes, and performance apparel at scale. This collaborative approach brings each program’s vision to life through high-quality, fully customized pieces built for both performance and impact. Learn more about our offerings at

At Rebel, we’re not just creating garments. We’re building a community of dreamers, doers, and disruptors who lead with purpose and aren’t afraid to shine.

About the Role

We’re seeking a Senior System Administrator that leads all Systems Administration and Helpdesk functions while providing hands-on technical expertise and guiding the daily work of junior IT team members. This role plays a key part in maintaining a secure, reliable, and scalable technology environment that supports Rebel Athletic operations. The ideal candidate excels with Microsoft 365, Entra ID, Intune, Shopify, Freshservice, and security governance, and thrives in a fast-paced setting where problem solving is a daily sport.

Duties and 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

Qualifications

• 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 Qualifications

• 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

 Compensation Range

$70,000 - $85,000 per year

Benefits Highlights

• Paid Time Off (PTO).
• Company-paid holidays available immediately upon hire.
• Annual discretionary bonus opportunity.
• Medical, dental, vision, and life insurance.
• Voluntary benefits, including supplemental life insurance, short-term disability, long-term disability, and additional coverage options.
• 401(k) plan with company match.

Benefit eligibility and effective dates depend on company policy and plan requirements.

Working Conditions

• Full-time position operating in a professional office and warehouse environment.
• Primarily office-based work involving prolonged periods of sitting and computer use.
• Frequent use of computers, multiple monitors, technical systems, and IT management platforms.
• Occasional travel between Rebel Athletic locations may be required.
• May require availability outside normal business hours for scheduled system maintenance, urgent technical issues, or high-priority projects.
• Requires the ability to manage multiple priorities, respond to technical escalations, and maintain focus under deadline pressure.
• Regular interaction with employees, department leaders, external vendors, and IT team members across the organization.

Equal Employment Opportunity Statement

Rebel Athletic LLC is an Equal Opportunity Employer. We consider all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, genetic information, military status, or any other protected characteristic. We strictly prohibit retaliation against individuals who raise concerns or participate in investigations.