L3 Server Infrastructure Lead (Unix/Linux)
About Gruve
Gruve is an innovative software services startup dedicated to transforming enterprises to AI powerhouses. We specialize in cybersecurity, customer experience, cloud infrastructure, and advanced technologies such as Large Language Models (LLMs). Our mission is to assist our customers in their business strategies utilizing their data to make more intelligent decisions. As a well-funded early-stage startup, Gruve offers a dynamic environment with strong customer and partner networks.
About the Role
We are looking for an experienced Unix/Linux Compute Subject Matter Expert to provide L3 technical leadership and operational ownership for a global estate of Unix/Linux server instances. The SME will be accountable for infrastructure stability, availability, security and performance, and will own patching, vulnerability remediation, lifecycle management and continuous improvement across the environment. Working within a follow-the-sun model spanning APAC, EMEA and NLAM, the role guides L1/L2 teams and partners closely with Security, Database, Storage, Network, Cloud and Application teams to deliver a consistent, high-quality service.
Key Roles and Responsibilities
- Administer and troubleshoot RHEL, SUSE (SLES), and Ubuntu.
- Provide L3 technical support for P1–P4 incidents and complex OS-level issues.
- Lead and technically guide L1/L2 Unix/Linux operations teams across global regions.
- Own OS patching, patch compliance and vulnerability remediation.
- Perform CIS hardening and security baseline remediation.
- Manage OS performance and capacity, including filesystem, CPU, memory and I/O issues.
- Support server build, configuration, lifecycle and decommissioning activities.
- Drive problem management, root cause analysis (RCA) and permanent corrective actions.
- Support monitoring, disaster recovery (DR) activities and operational readiness.
- Develop and maintain operational runbooks, procedures and technical documentation.
- Identify and implement automation opportunities to improve operational efficiency.
- Collaborate with Security, Database, Storage/Backup, Network, Cloud and Application teams.
- Ensure consistent service delivery through the APAC–EMEA–NLAM follow-the-sun operating model.
Basic Qualifications
- 7–8+ years of experience in enterprise Unix/Linux infrastructure and production operations.
- Strong hands-on experience with SUSE Linux Enterprise Server (SLES) administration, patching and troubleshooting and Red Hat RHCSA / RHCE
- Hands-on experience managing Linux workloads on Cloud Infrastructure (AWS, Azure or GCP), including compute instances, networking, storage and cloud-based patching/security.
- Expert knowledge of one or more of: RHEL, Ubuntu.
- Strong troubleshooting skills across OS, filesystem, process, performance and system services.
- Experience with OS patching, vulnerability remediation and CIS hardening.
- Strong knowledge of LVM, NFS, SSH, DNS, filesystem management, package management and cron.
- Experience in enterprise 24x7 production operations.
- Strong ITIL-based Incident, Problem and Change Management experience.
- Experience leading and mentoring L1/L2 teams and handling major incidents.
- Strong scripting and automation skills using Shell, Python, Ansible or equivalent.
Preferred Qualifications
- Red Hat RHCSA / RHCE or SUSE (SCA/SCE) certification.
- Experience with enterprise monitoring and patch-management tools.
- ServiceNow or other ITSM platform experience.
- Knowledge of VMware and Backup/DR solutions.
- Experience working in a global follow-the-sun support model
Why Gruve
At Gruve, we foster a culture of innovation, collaboration, and continuous learning. We are committed to building a diverse and inclusive workplace where everyone can thrive and contribute their best work. If you’re passionate about technology and eager to make an impact, we’d love to hear from you.
Gruve is an equal opportunity employer. We welcome applicants from all backgrounds and thank all who apply; however, only those selected for an interview will be contacted.
Skills
As published by greenhouse · 20 questions · 4 written answers
Basics
First Name, Last Name, Email, Phone, Resume/CV, Cover Letter
Short answers (8)
- Preferred First Name optional
- LinkedIn Profile
- Website optional
- What is your permanent address?
- What is your current address?
- Please mention your official notice period only?
- What is your current salary?
- What are your salary expectations for this role?
Pick from a list (8)
- Do you currently, or will you in the future, require visa sponsorship to work here?
- This role supports a 24x7 global production environment. Are you comfortable working rotational shifts, including night shifts?
- Do you have hands-on production experience administering, patching and troubleshooting both SUSE Linux Enterprise Server (SLES) and Red Hat Enterprise Linux (RHEL)?
- This L3 SME role involves handling an equal share of incident tickets (P1–P4) yourself, alongside guiding L1/L2 teams. Are you comfortable with this hands-on ticket ownership?
- Have you handled or led P1/major incidents using ITIL Incident, Problem and Change Management processes?
- I acknowledge my right to refrain from disclosing any confidential or proprietary information during the interview and understand that the company will not solicit such information, in accordance with the Non-Disclosure Agreement
- I consent to the use of AI-powered note-taking tools during the interview process and acknowledge that the interview may be recorded and stored for evaluation purposes.
- I hereby provide my consent to share my professional referees with Gruve and authorize Gruve, or its designated third-party representative, to contact them for the purpose of conducting business reference checks as part of the hiring process.
Written answers (4)
- Please mention your undergraduate or postgraduate institute and degree
- How many years of hands-on experience do you have in enterprise Unix/Linux infrastructure and production operations? Briefly mention the environments you have supported.
- Briefly describe how you handle OS patching and vulnerability remediation on SLES and on RHEL. Name the tools and commands you use for each. Expected answer: A strong answer covers both distributions with specific detail:
- Which cloud platforms (AWS, Azure or GCP) have you managed Linux workloads on? Briefly describe your hands-on work with compute instances, networking, storage, and cloud-based patching or security.