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Overview
Tangent International provided pay range. This range is provided by Tangent International. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.
Senior Systems Administrator (Linux, VMware, Ansible) – Remote with Data Centre Visits
I am searching for a Senior Systems Administrator for my client, a fast-growing global software company supporting some of the world’s most critical financial systems. They specialise in secure digital transaction technology, partnering with banks and enterprises across the globe to prevent fraud and keep digital commerce safe.
You’ll be joining a tight-knit, highly skilled Production Support & Infrastructure team that plays a vital role in keeping their platform running smoothly, securely, and at scale. This is a high-impact role where your work will directly contribute to protecting millions of users worldwide.
If you're looking for autonomy, trust, and variety in your day-to-day work, alongside people who genuinely take pride in what they do, this is a brilliant opportunity.
What You'll Be Doing
* Managing and supporting production infrastructure across on-premise and cloud environments
* Maintaining and automating Red Hat Linux systems, including Satellite patching, CVE remediation, and bare metal deployments (Kickstart).
* Writing and maintaining Ansible playbooks for automation and infrastructure consistency, with ability to troubleshoot failures.
* Exposure to Ansible Tower / AWX (UI) desirable.
* Ensuring robust change control processes are followed - no rogue changes, strict process adherence
* Participating in a 1-in-3 on-call rota (15-minute response time)
* Supporting scheduled maintenance windows (e.g. Sunday mornings, 1–2x/month)
* Performing occasional hands-on data centre tasks (rack-and-stack, cabling, physical installs)
* Collaborating with DevOps and App Support teams on infrastructure improvement and reliability
Key Skills & Experience
* Expert-level VMware (provisioning, tuning, upgrades, vMotion/live migration, troubleshooting, performance monitoring).
* Strong Red Hat Linux & Satellite — patching, CVE remediation, and bare metal installs (Kickstart).
* Proven Ansible capability — writing and maintaining playbooks, troubleshooting failures (script vs Ansible execution), with Ansible Tower/AWX exposure preferred.
* Familiarity with SAN storage in VMware environments.
* Experience operating in production environments with formal change control and ITIL-aligned processes.
* Scripting skills in Bash, Python, or PowerShell.
* Comfortable with physical data centre work (rack, cabling, mounting).
* Ability to work independently and flexibly in a lean global team (approx. 300 employees worldwide).
* Previous experience in financial services, defence, or other regulated industries is a plus.
Working Setup
* Remote-first role with occasional on-site work at a Slough-based data centre (1x per week or fortnight)
* Occasional travel to a European site (Amsterdam – approx. 3–4 times per year)
* Global scope with systems based in UK, Europe, US, and Israel
Cultural Fit
* Process-driven, pragmatic, and calm under pressure.
* Able to explain technical concepts clearly to peers and stakeholders.
* Follows structured, secure workflows (especially in production).
* Flexible — willing to troubleshoot and adapt to business needs.
* Not seeking a rigid 9-to-5, but values work-life balance.
Seniority level
* Mid-Senior level
Employment type
* Full-time
Job function
* Information Technology and Engineering
Industries
* Computer and Network Security, Financial Services, and Software Development
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