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Linux System Administrator

Posted on Jan 25, 2020 by Capita Resourcing IT

Amsterdam, Noord-Holland, Netherlands
Immediate Start
Annual Salary

L3 Data Centre Linux System Administrator

Main responsibilities are:
  • Achieve project related deliverables within agreed and communicated timelines;
  • Installation/de-installation, configuration, maintenance and repair of systems and software;
  • Work with service delivery teams to ensure the delivery into production of new or upgraded Linux server/service changes are carried out according to agreed quality processes and schedules.
  • Provide technical design and architecture proposals to improve the existing Linux Server infrastructure services, thereby improving efficiency, effectiveness and minimizing costs. Configure network interfaces, routing and local Firewall policies
  • Configure system applications and protocols such as SSH and DNS

Installation of system libraries, web server applications and other packages as needed by projects

  • Setup, maintenance and troubleshooting of network-mounted file systems Manage capacity, availability and system level performance
  • Backup & Disaster recovery management/capability
  • Support in managing and deployment of new tools to improve ways of working and overall efficiency;
  • Implementation of necessary Change Requests;
  • Support the design and build of new systems
  • Produce documentation and use any appropriate means to ensure effective communications of systems, processes and procedures to both internal and external parties;
  • Comply to standards of physical security, capacity planning and other related industry standards
  • Record and maintain accurate incident and change records and logs;
  • Proactively detect and report to management any operational threats;
  • Ensure the operational availability of the systems and infrastructure;
  • Problem and Compliance management:
    • Provide root cause analysis on major incidents and follow up on corrective measures;
    • Discover and address systematic problems in the infrastructure design;
    • Liaise with the vendors for major incident and problem management;
    • Regular updates to management, status reporting, risk management, escalation management;
    • Update capacity planners about progress and get their input to review timeline for completion of capacity upgrades and Completion of internal project documentation.
Education, Key knowledge and experience required:
  • Bachelor degree in information technology or Computer/Electrical Engineering or equivalent industry experience;
  • 5+ years of experience with system administration, preferably in a large Telco/Cable Operator Data Centre environment
  • 5+ years proficiency administering Unix & Linux Operating systems (RHEL 5/6/7, OEL 5/6/7);
  • 5+ years proficiency with installing operating Systems RHEL Linux and Oracle Enterprise Linux;
  • 2+ years proficiency of Virtualization Tooling including Oracle Virtual Machine, Solaris LDOM's & Zones;
  • Good knowledge of UNIX/Linux Kernel and OS architecture accompanied with advanced UNIX/Linux administration skill;
  • Good knowledge and experience with:
    • DNS, NTP, DHCP, SSH, scp and sFTP Servers and clients;
    • Encryption methods, SSL certificates and SSH passwordless authentication
    • IP Networking, Network protocols: TCP, UDP, SNMP, SMTP and ICMP and network commands
    • Shell script and ansible
    • Traps/Agents
  • Good knowledge of iptables and Firewall principles;
  • Familiarity with the operation and configuration of network interface card installation, Switches, Routers and similar components;
  • Excellent knowledge of RedHat packaging system (RPM);
  • Knowledge of Virtualization Technology (VMWare, Citrix Administration, Netscaler) and XFS file systems;
  • Very strong troubleshooting skills of system and network related problems - mastering of wireshark/tcpdump and other system troubleshooting tools
  • Expertise in administration of Apache Web Servers including installation, configuration, monitoring, upgrade and Web Application installation;
  • Scripting skills in python and Perl are of great advantage;
  • Experience with containarization and automation technologies: docker, Kubernetes, OpenStack;
  • Awareness of security, hardening and patching;
  • Awareness of Logical Volume disk management (Solaris Volume Manager & ZFS);
  • Ability to work in a fast paced environment and offer effective solutions under tight deadlines;
  • Effective time management, communication and organizational skills;
  • Strong inter-personal communication skills, must be flexible and team player whilst retaining the ability to be self-reliant and work unsupervised;
  • Must be able to learn new technologies and techniques quickly - often without formal training;
  • Must have a very high level of self-motivation;
  • In possession of a valid EU work permit;
  • Good command of the English language - other languages are a plus;
  • Flexibility in working hours;
  • Experience in multinational and multicultural environments;
  • Optional skills would include: VMware, Oracle engineered Systems, Veritas Volume manager;

Capita IT Resourcing is acting as an Employment Business in relation to this vacancy.

Reference: 832860906

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