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Open nowFirst seen 47 hours ago

Linux Engineer (Bash, Python, Ansible)

IO TECH SOLUTIONS LIMITED787 open roles

Where
Hong Kong, Hong Kong SAR, Hong Kong
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Your applicationOpen nowLinux Engineer (Bash, Python, Ansible)IO TECH SOLUTIONS LIMITED · Hong Kong, Hong Kong SAR, Hong Kong

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

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The clock on this job

Early applications get read.

11.8% of postings close within 7 days. Measured by our own scanner across the market.

Share of postings closed within
  1. 2.1%1 day
  2. 4.4%3 days
  3. 11.8%7 days
  4. 18.6%14 days
  5. 35.6%30 days
  6. 45.1%60 days
This job: first seen 47 hours ago

The posting

Responsibilities

  • Linux Systems Administration: Install, configure, patch, and maintain RHEL/Fedora servers and related infrastructure.
  • Performance & Low-Latency Tuning: Perform network/system/kernel tuning for ultra-low-latency workloads; develop benchmarks and monitoring/observability dashboards.
  • Scripting & Automation: Develop reliable Bash, Python, and Perl scripts for routine operations, troubleshooting/diagnostics, and internal tooling.
  • Configuration Management: Build and maintain Ansible playbooks or Salt states (Salt preferred); ensure idempotent configuration across large node fleets (hundreds of nodes).
  • Virtualization & Cloud: Deploy and manage Proxmox clusters; create and maintain VMs and containers; integrate with AWS services when relevant.
  • Network Engineering: Implement and troubleshoot advanced networking, including VLANs, bonding/NIC teaming, SR-IOV, TCP/UDP tuning, and QoS. Cisco and Fortinet experience is a plus.
  • Storage Engineering: Administer and troubleshoot SAN/NAS and block storage via iSCSI. Perform LUN masking, multipathing, and Linux host performance tuning. HPE SAN experience is a plus.
  • Incident Response: Respond to production incidents promptly (including some after-hours/weekend coverage).
  • Documentation & Knowledge Sharing: Create clear runbooks, SOPs, and technical documentation; mentor junior engineers.
  • Security & Compliance: Apply hardening standards, manage SELinux where required, and support audit/compliance requirements.

What You Bring

  • Bachelor's degree in Computer Science, Information Technology, or related field.
  • 5–10 years of professional Linux engineering experience with RHEL/Fedora.
  • Strong problem-solving skills; able to work independently and collaboratively; proactive approach to automation and continuous improvement.
  • Strong networking fundamentals: TCP/IP, routing, switching, and firewalls.
  • Proven experience with system/kernel/network performance tuning, including low-latency optimization.
  • Hands-on experience with Proxmox (preferred) or comparable virtualization platforms (KVM, VMware).
  • Advanced scripting skills in Bash, Python, and Perl.
  • Demonstrated experience with Ansible or Salt (Salt preferred).
  • Experience with container technologies (Docker, LXC/LXD).
  • Familiarity with monitoring/observability stacks: Prometheus, Grafana, Zabbix, LibreNMS.
  • Knowledge of security frameworks such as CIS and NIST.
  • Experience with Windows networking.
  • Working knowledge of AWS services (EC2, VPC, S3) is a plus.
  • Prior experience in high-frequency trading and financial services is a plus.
  • Fluency in English; Mandarin and/or Cantonese fluency is a plus.
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