Linux/Unix Administrator

Aon

Warszawa

4 dni temu

Linux/Unix Administrator
Warszawa
Nr ref.: 2482161

As part of an industry-leading team, you will help empower results for our clients by delivering innovative and effective solutions. Applicant will play a core role as part of Cloud and Enterprise Platform Service team and will support both operational elements of EMEA Linux/Unix technologies, and day-to-day administration of platforms built within these environments with special focus on Poland services.

 

Job location: Warsaw/Home working 

 

Job Responsibilities:

  • Provide solutions and options in terms of systems architecture and configuration
  • Manage capacity, develop process, design system architecture, and perform technology refreshes
  • Plan, implement, install, build, configure, support system and test server infrastructure
  • Lead infrastructure related projects and solve highly complex problems spanning multiple technologies
  • Assist with developing strategy that will serve all areas of engineering, taking into account the differing requirements for authentication, security, backup, replication, availability
  • Maintain and monitor current servers for efficiency, data recoverability and performance to identify areas of improvement
  • Ensure systems operation are maintained, including any necessary patching, restarting, recovery and reconfiguration
  • Perform performance tuning, capacity planning, project justification and procurement according to procurement processes and policies
  • Pragmatic approach to operational support, recognizing occasional requirements for flexible working hours
  • Identify and assess risks, provide/review risk mitigating measures associated with the technical solutions and migration plan
  • Implement changes according to Change Release procedures
  • Implement security setup and controls on Unix/Linux based mission-critical applications and systems
  • Support periodic audit review exercises by providing the required information and to perform the remediation actions to close all audit findings
  • Inventory, Assets and License tracking and updates to ensure compliance
  • Monitor and troubleshoot backups, schedule jobs, systems setup and processes
  • Review and analyze systems logs (events logs, error logs, audit logs, security logs etc.)
  • Perform incident logging/update incident, chronology into incident management system
  • Perform systems heath checks, maintain and up-keep monitoring systems to proactively identify potential issues
  • Detect and eliminate technical issues in complex systems, utilizing monitoring and other analysis tools to ensure optimal system performance
  • Drive restoration calls independently
  • Promote process improvement
  • Maintain technical documentation, reports and records regarding infrastructure solutions
  • Involvement in strategic and tactical projects at all levels, technical leadership, complex administrative tasks, resource and capacity planning, product administration, support and root cause analysis
  • Mentoring less experienced team members where applicable

Required Experience:

  • Minimum of 10 years of working experience in Unix system support, enterprise systems management, maintaining and implementing 24x7 mission-critical applications & systems
  • Demonstrated experience with Unix administration
  • Hands-on experience on LVM, ZFS, UFS, SVM etc.
  • Hands-on experience of Linux patching using Red Hat Satellite / YUM
  • Good knowledge experience in Middleware (Oracle Database/BPM/Weblogic) on Red Hat Linux or Unix based systems, Java & Unix shells and scripting
  • Good knowledge of Linux/Unix shell scripting
  • Experience in managing monitoring and events management systems. E.g. CA UIM, Nagios
  • Experience in managing Cloud Ready and Containerized infrastructure (OpenShift, Kubernetes, Terraform)
  • Experienced installing and configuring and administering Linux in the Cloud (AWS, Azure preferable)
  • Possess project management experience and working knowledge of procurement
  • Comfortable and composed working in a high-pressure environment to meet deadlines
  • Comfortable working in an international team with colleagues based in different countries
  • Fluent English speaking

Preferred Experience:

  • Working knowledge of Network/Storage/Backup technologies, Apache / Internet Information Server (IIS) Web server, Firewalls, SAN
  • Working knowledge of DRP (disaster recovery plan) and BCP (business continuity plan)
  • Familiar with TCP/IP networking, load balancing, firewalls, etc. and proficient with network tools such as iptables, Linux IPVS, HAProxy, etc.
  • Working knowledge of VMware infrastructure

We offer:

  • The best medical cover on the market with free dental care
  • Generous benefits package for your wellbeing (multisport cards, insurance, vouchers, and many more!)
  • Stability of employment and permanent contract after trial period
  • Brand new office supporting collaboration, flexibility and activity based working
  • Internal career opportunities and individual development plan
  • Unique workplace culture - we value openness, honesty and authenticity, so don’t expect formal dress code nor managers hidden behind closed doors
  • Lots of social events, charity actions and opportunities to integrate with colleagues

Poznaj

Aon

Aon plc jest światowym liderem usług zarządzania ryzykiem, ubezpieczeniowych i reasekuracyjnych usług brokerskich, jak również rozwiązań HR i outsourcingowych. Poprzez ponad 59 tys. pracowników Aon oferuje swoim klientom innowacyjne i efektywne rozwiązania z obszaru zarządzania ryzykiem i produktywności pracowników. Globalne rozwiązania i wiedza Aon dostępna jest w ponad 120 krajach.