Fractional Senior Sysadmin for Small and Mid-Size Business

Most small and mid-size shops outgrow their IT setup long before they can justify a senior full-time hire. The server room that one person stood up five years ago now runs payroll, file shares, and a line-of-business app nobody dares touch. The work that needs real depth — a migration, a firewall redesign, a backup that has never actually been restored — arrives in bursts. A full-time senior salary sits idle between those bursts, but the bursts are exactly when an inexperienced hand makes the expensive mistake.

The other version of this: you already have a capable junior admin or an MSP handling the day-to-day, and they are good at it. But every so often something lands above their depth, and there is no one senior to escalate to. I am the senior hand for both situations — booked for the spikes and the hard problems, not for the routine.

How the engagement works

I work two ways, and I am direct about which one fits. A retainer gives you a set block of hours each month — a standing senior resource your team can call, with priority response and a known monthly cost. A defined window is for a bounded piece of work: a scoped outcome, a start, and an end. A datacenter migration, a STIG hardening pass, a Splunk deployment, a network segmentation project.

Either way you get scoped outcomes in writing, not open-ended hours. We agree on what done looks like before I start, and I deliver against that. The hybrid that usually wins for a growing shop is a lean internal team for daily operations plus a contractor for projects and spikes — you keep your people close to the business and bring senior depth in only when the work demands it. If you are weighing that against another headcount, I wrote up the tradeoffs in contractor vs full-time hire.

Why me

I have spent roughly four years in production environments across the full stack a real business runs — Linux and Windows servers, virtualization, networking and firewalls, backup and disaster recovery, SIEM, and security hardening. That breadth matters for a fractional role: the problem that shows up is rarely the one you planned for, and you want one senior person who can follow it across every layer instead of three specialists who each own a slice. I hold seven active certifications that back that range.

The method is what keeps a fractional engagement low-risk. I write a runbook before I make any change, so you know exactly what is happening and so it is repeatable. I build validation gates into the work and own the rollback — if a cutover goes sideways, getting you back to a known-good state is my responsibility, not yours. And every deliverable stays in your repository: the runbooks, the diagrams, the configs. When the engagement ends, your team is more capable than when it started, not more dependent on me.

I am remote-first, which keeps the cost down and the response fast, and I am in Fort Worth for the Dallas-Fort Worth clients who occasionally need someone on-site.

• A standing retainer so a senior admin is always one call away
• Project coverage for migrations, hardening, SIEM, and networking spikes
• Fill-in coverage while you hire or while a key admin is out
• An escalation point your junior admin or MSP can hand the hard problems to