Senior Linux Engineer (Weekend Operations)

AMBITION GROUP SINGAPORE PTE. LTD.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

AMBITION GROUP SINGAPORE PTE. LTD. seeks a Senior Linux Platform Operations Engineer to own the operational health of large-scale Linux infrastructure in production and non-production environments.

The role is highly hands-on and focused on production support, incident management, maintenance execution, platform reliability, and continuous improvement. You will automate using Python and Shell, manage bare-metal servers and storage, and coordinate changes within change-management processes while

Qualifications

• 8+ years of Linux systems administration and infrastructure operations in large-scale, 24x7 environments.
• Deep expertise in Linux OS administration, performance tuning, troubleshooting, and kernel fundamentals.
• Proficiency with Salt, Puppet, or Ansible for configuration management.
• Python and Shell scripting for automation and tooling.
• Experience with bare-metal servers and enterprise storage (SAN/NAS/RAID/NVMe).
• Hands-on with Grafana and Prometheus for monitoring and observability.
• Familiarity with AWS, GCP, Docker, and Kubernetes.

Responsibilities

• Own the operational health, availability, and performance of Linux infrastructure across production and non-production environments.
• Lead weekend maintenance, system upgrades, patching, failover testing, and recovery exercises.
• Act as senior escalation point for Linux incidents, drive triage, resolution, and root cause analysis.
• Administer bare-metal Linux servers, storage systems, and configuration management platforms.
• Execute and monitor production changes per change management processes.
• Develop and maintain operational automation using Python and Shell scripting.
• Support monitoring, observability, and capacity management through dashboards and reporting.
• Create and maintain runbooks and recovery documentation.
• Collaborate with Engineering, SRE, Security, and Infra teams to improve reliability.

Skills

Linux administration

Incident management

Automation & scripting

Monitoring & observability

Cloud & container tech

Tools

Salt

Puppet

Ansible

Terraform

Git

CI/CD

Docker

Kubernetes

Grafana

Prometheus

AWS

GCP

Job description

Our client is a leading global financial markets and technology organization that operates high-availability infrastructure supporting customers around the world. They are looking for a Senior Linux Platform Operations Engineer to provide hands‑on operational ownership of large-scale Linux environments. This is a highly operational role focused on production support, incident management, maintenance execution, platform reliability, and continuous improvement. The successful candidate will act as a senior escalation point for Linux infrastructure issues and play a key role in ensuring the stability and availability of mission‑critical systems.

Key Responsibilities

• Own the operational health, availability, and performance of Linux infrastructure across production and non-production environments.
• Lead and execute weekend maintenance activities, system upgrades, patching, failover testing, and recovery exercises.
• Act as the senior technical escalation point for Linux‑related incidents, driving triage, resolution, and root cause analysis.
• Administer and maintain bare‑metal Linux servers, storage systems, and configuration management platforms.
• Execute and monitor production changes in accordance with established change management processes.
• Develop and maintain operational automation using Python, Shell scripting, and infrastructure management tools.
• Support monitoring, observability, and capacity management through dashboards, reporting, and system analysis.
• Create and maintain operational procedures, runbooks, and recovery documentation.
• Collaborate with Engineering, SRE, Security, and Infrastructure teams to improve platform reliability and operational efficiency.

Requirements & Qualifications

• At least 8 years of Linux systems administration and infrastructure operations experience in large‑scale, 24x7 environments.
• Deep expertise in Linux OS administration, performance tuning, troubleshooting, and kernel fundamentals.
• Strong experience with configuration management tools such as Salt, Puppet, or Ansible.
• Proficiency in Python and Shell scripting for automation and operational tooling.
• Experience supporting bare‑metal server environments and enterprise storage technologies (SAN, NAS, RAID, NVMe).
• Hands‑on experience with monitoring and observability platforms such as Grafana and Prometheus.
• Familiarity with cloud and container technologies including AWS, GCP, Docker, and Kubernetes.
• Experience with Infrastructure as Code and DevOps tooling, including Terraform, Git, and CI/CD pipelines.
• Strong problem‑solving skills with the ability to perform effectively during high‑severity incidents.

Work Schedule

Weekend‑focused operational coverage model. Early morning starts will be required to support global operations (7AM SGT)