Europe Arbeitnow ·
full-timeSenior Systems Administrator (linux)
Bluestaquk · Lincoln / Lincolnshire
Bluestaq Ltd is the UK sovereign subsidiary of a US‑based firm that builds secure data infrastructure for NATO, Five Eyes and other allied partners. The company delivers mission‑critical solutions that move data from ingestion to publication in milliseconds for thousands of global users. The Senior Systems Administrator will be responsible for owning one or more Linux environments that run on AWS, handling configuration, monitoring, alerting, upgrades and incident response. Day‑to‑day work includes debugging complex faults such as performance bottlenecks, resource exhaustion and integration failures, and driving each incident from symptom to root‑cause analysis and remediation. The role also requires hardening services, interpreting security scans, managing change control with risk assessment and rollback plans, and producing documentation and runbooks. As an escalation point, the senior admin will mentor junior Systems Administrators, sharing best practices and operational hygiene. The position suits an experienced Linux professional with strong AWS knowledge, deep troubleshooting skills, a security‑focused mindset and the ability to work independently while guiding less‑experienced team members.
About Bluestaq Limited Bluestaq starts with our people. We are looking for teammates who THINK strategically, SERVE the mission and LEAD from wherever they stand. If you bring curiosity, ownership and a thirst for delivery, we would like to hear from you. Every society runs on invisible systems; Bluestaq is that, for data. Bluestaq Ltd is the UK sovereign subsidiary of Bluestaq LLC (Colorado Springs, USA), and we build the secure data infrastructure that allied operations depend on: mission-critical solutions, flowing through thousands of global users, from ingest to publication in milliseconds, for customers spanning the NATO, Five Eyes and wider allied partners. We are in our formative years in the UK, building on proven foundations in the USA and Australia. That means real opportunity, early: decisions at your level, and colleagues who know their craft and trust you to know yours. The Role You will own specific Linux systems supporting our NATO delivery on AWS, from configuration and monitoring to upgrades and incident response. You will be the specialist the team escalates to when a fault defeats first-line troubleshooting, and you will improve reliability as well as restore it. You will mentor Systems Administrators in troubleshooting and operational hygiene. This is an individual contributor role with no direct reports, reporting to the Systems Administration Manager, with a clear technical path to Lead Systems Administrator. What You Will Do Own one or more systems or environments, covering configuration, monitoring and alerting, upgrades and incident response. Debug difficult faults, including performance problems, resource exhaustion and integration failures, and take each incident from first symptom to a root cause and a remediation plan that holds. Configure and tune services with secure, hardened defaults, and turn scan output and logs into lasting remediation. Plan and execute upgrades and changes under change control, with realistic risk assessment and a tested rollback. Act as the escalation point for Systems Administrator colleagues, mentor them, and document patterns others can reuse in runbooks and standard o
| Role | Senior Systems Administrator (linux) |
|---|---|
| Company | Bluestaquk |
| Location | Lincoln / Lincolnshire |
| Type | full-time |
| Compensation | Not disclosed |
| Deadline | Rolling |
Typical process for this type of role
A general guide — the exact steps for this specific listing may vary; check the original posting for details.
- 1ApplicationSubmit your resume through the apply link.
- 2ScreeningRecruiter reviews your background against the role.
- 3AssessmentA technical test, assignment, or coding round, depending on the role.
- 4Interview(s)One or more rounds with the hiring team.
- 5OfferOffer letter with compensation and start date.
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