Lead Linux Admin

UST Job Title: Lead I- Production Support

Who we are:

At UST, we help the world s best organizations grow and succeed through transformation. Bringing together the right talent, tools, and ideas, we work with our client to co-create lasting change. Together, with over 30,000 employees in over 25 countries, we build for boundless impact-touching billions of lives in the process. Visit us at UST.com. The Opportunity: We are seeking a Lead Linux Administrator to lead engineering and operations for our Linux server estate across on-premises data centres and Microsoft Azure. You will architect hybrid infrastructure, implement SRE practices, own core platform services (identity, storage, HPC), and mentor the infrastructure team. You bring strong Linux fundamentals, Azure architecture experience, an automation-first mindset, and a proven ability to develop others.

Key Responsibilities

Architecture Engineering

Design, deploy, and operate Linux infrastructure across on-prem and Azure.

Architect Azure for Linux/Windows workloads, networking, and hybrid identity integration.

Own identity services: Red Hat IdM/LDAP, SSSD, Kerberos, and AD/Entra ID integration.

Site Reliability Operations

Implement SRE practices: define SLOs/SLIs, improve observability, and run incident management with blameless post-mortems.

Automate provisioning and operations using scripting and IaC; reduce toil through standardisation.

Lead patching, vulnerability remediation, and compliance reporting.

Technical Leadership Mentorship

Lead technical design and code reviews; mentor engineers and administrators.

Define standards, reference architectures, and runbooks.

Coach team members on Linux internals, Azure patterns, automation, and SRE discipline.

Partner with Security, Networking, Storage, Applications, and DevOps to deliver secure, scalable platform services.

Required Qualifications

10+ years in Linux systems administration/engineering, including 3+ years in a senior/lead role.

Degree in Computer Science/Engineering (or equivalent practical experience).

Expert Linux (RHEL/CentOS/Rocky and/or Ubuntu): kernel and performance tuning, systemd, networking, storage, troubleshooting.

Azure IaaS hybrid: VMs, VNets/NSGs, Storage (Azure Files/NetApp Files), Entra ID, hybrid identity, Azure Arc.

Enterprise identity storage: LDAP/Red Hat IdM, SSSD, Kerberos, AD/Entra integration; NFSv3/v4, automounter, enterprise NAS.

Automation: Python/Bash, Ansible.

Observability: Prometheus, Grafana, Azure Monitor.

SRE experience: incident response, capacity planning, post-mortems.

Strong communication and stakeholder management; able to explain trade-offs and mentor effectively.

Preferred Qualifications Microsoft certifications: AZ-104, AZ-305, or AZ-700.

Red Hat certifications: RHCE, RHCA, or equivalent. Experience with Azure DevOps CI/CD pipelines.

What Youll Bring

Ownership mindset with a bias for automation and reliability.

People-first leader who coaches and raises the team s technical bar.

What we believe:

We re proud to embrace the same values that have shaped UST since the beginning. Since day one, we ve been building enduring relationships and a culture of integrity. And today, its those same values that are inspiring us to encourage innovation from everyone, to champion diversity and inclusion and to place people at the centre of everything we do.

Humility: We will listen, learn, be empathetic and help selflessly in our interactions with everyone.

Humanity: Through business, we will better the lives of those less fortunate than ourselves.

Integrity: We honour our commitments and act with responsibility in all our relationships. Equal

Employment Opportunity Statement:

UST is an Equal Opportunity Employer. We believe that no one should be discriminated against because of their differences, such as age, disability, ethnicity, gender, gender identity and expression, religion, or sexual orientation. All employment decisions shall be made without regard to age, race, creed, colour, religion, sex, national origin, ancestry, disability status, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, citizenship status or any other basis as protected by federal, state, or local law. UST reserves the right to periodically redefine your roles and responsibilities based on the requirements of the organization and/or your performance.

To support and promote the values of UST.

Comply with all Company policies and procedures