Senior Linux Administrator

GECO Asia; Singapore; On-site; SGD 70,000 - 90,000; Full time

Job summary

A specialist IT consulting firm in Singapore is seeking a Senior Linux Administrator to manage and scale their critical Linux infrastructure. The role requires expertise in Linux systems, automation tools, and cloud environments. The ideal candidate will have a minimum of 5 years in Linux administration with strong communication skills. Join a collaborative team that values innovation and work-life balance. Competitive compensation and career advancement are provided.

Benefits

Competitive compensation

Career advancement opportunities

Support for work-life balance

Collaborative company culture

Qualifications

• Minimum 5 years of senior-level Linux system administration.
• Strong English communication skills (written and verbal).
• Proactive and detail-oriented with excellent documentation skills.

Responsibilities

• Maintain and optimize large-scale Linux environments.
• Ensure performance, security, and scalability across systems.
• Manage cloud infrastructure and automation.

Skills

RHCE certification or equivalent Linux administration expertise

Deep experience in Linux technologies and enterprise hardware

Strong experience with Linux automation tools

Experience managing Microsoft Azure cloud environments

Proficiency in scripting languages (Shell, Perl, Python)

Familiarity with RPM / DPKG packaging

Knowledge of Linux virtualization (QEMU / KVM)

Solid grasp of TCP / IP networking

Education

RHCE certification

Tools

Azure

HPE MoonShot

Prometheus

VMware

Job description

About Us

GECO Asia Group of Companies is a specialist IT Consulting Services company headquartered in Singapore, with two delivery centers in the Philippines.

We’re expanding our dynamic team and are currently on the lookout for a highly skilled Senior Linux Administrator to help manage and scale our critical Linux infrastructure.

Position: Senior Linux Administrator

Are you an expert in Linux systems, automation, and cloud infrastructure? Do you thrive in a fast‑paced, enterprise‑grade environment? If so, we want to hear from you!

As a Senior Linux Administrator, you’ll play a key role in maintaining and optimizing our large‑scale Linux environments, ensuring performance, security, and scalability across on‑premise and cloud systems.

Job Requirements & Qualifications

Must‑Have Technical Skills

• Minimum RHCE certification or equivalent Linux administration expertise
• Deep experience in Linux technologies and enterprise hardware (e.g., HPE MoonShot, ProLiant servers)
• Strong experience with Linux automation tools (Ansible, Terraform, AWS / Azure APIs)
• Experience managing Microsoft Azure cloud environments
• Proficiency in at least one scripting language: Shell, Perl, or Python
• Familiarity with RPM / DPKG packaging, large‑scale Linux deployments, and automated installation (e.g., Kickstart)
• Knowledge of Linux virtualization (QEMU / KVM) and monitoring tools (e.g., Zabbix, Prometheus, Nagios)
• Working knowledge of Active Directory, Azure AD, SAML SSO, VMware, and Windows Server / Desktop OS
• Solid grasp of TCP / IP networking, IT security concepts, and web architecture (SaaS, PaaS)

Nice to Have

• Exposure to FreeBSD, embedded Linux, or SIEM tools like Splunk
• Experience with Thin / Zero Client architecture
• Background in SAP on UNIX / Linux, ITIL framework, or Linux Kernel internals
• Familiarity with other UNIX‑like systems

Behavioral Skills

• Minimum 5 years of senior‑level Linux system administration
• Strong English communication skills (written and verbal)
• Proactive and detail‑oriented with excellent documentation skills
• Experience working in international teams
• Team player with a customer‑first mindset
• Comfortable with enterprise IT change management processes

Why Join Us?

• Be part of a collaborative and innovative team that values your expertise
• Enjoy competitive compensation and career advancement opportunities
• Work in an environment that encourages continuous learning and growth
• Experience a company culture that supports work‑life balance

How to Apply

Click the "Apply for this job" button or send your updated resume to [e-mail]