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Senior System Administrator

A2B Australia

A2B Australia

Software Engineering, IT
Sydney, NSW, Australia
Posted on Friday, September 1, 2023

01st September, 2023


Are you a tech enthusiast who thrives in a dynamic and fast-paced environment? Are you ready to take on the challenge of supporting complex network and system infrastructure in a 24x7 setting? We're seeking a skilled and dedicated System Administrator/DevOps to join our team and play a pivotal role in maintaining and optimizing our cutting-edge systems.

About Us:

We're a forward-thinking company at the forefront of technology, delivering innovative solutions in the payment service sector. As a System Administrator/DevOps, you'll collaborate closely with Software Engineering, Technical Support, and Network Operations teams to ensure seamless operations and drive meaningful impact.

Key Responsibilities:

As a System Administrator/DevOps, you'll be entrusted with a range of responsibilities that include:

  • Administering application hosts and managing tools, databases, web services, libraries, and more.
  • Designing and architecting infrastructure solutions to meet business requirements, creating a secure, scalable, and highly available hybrid payment service environment.
  • Configuring network devices, including routers, switches, and CISCO ASA.
  • Collaborating with Development and Operations Engineers to provide infrastructure recommendations aligned with application needs.
  • Overseeing backup and restoration procedures, disaster recovery testing, and implementing infrastructure automation.
  • Coordinating with hardware and software vendors, evaluating and recommending new technologies.
  • Taking an active role in maintaining and optimizing the service environment, performing proactive analysis and troubleshooting.
  • Participating in 24/7 support, diagnosing and resolving infrastructure issues, and ensuring compliance with security standards.
  • Playing a vital part in daily technical operations meetings and maintaining up-to-date documentation.
Qualifications and Skills: We're looking for candidates with the following qualifications and skills:
  • At least 5 years of experience in designing, building, and maintaining system hardware and operating environments.
  • In-depth knowledge of network configuration, routing, firewall, IPSec, BGP, VLAN, DMZ, etc.
  • Proficiency in Windows and Linux OS, VMWare VSphere/VCentre, and Cloud (Azure).
  • Strong understanding of system internals, including scheduling, memory management, and TCP/IP stack.
  • Expertise in AD, LDAP, DNS, NFS, IAAS, and experience with backup and recovery policies.
  • Familiarity with scripting languages and SQLServer.
  • Excellent problem-solving and troubleshooting abilities.
  • Knowledge of PCI compliance, Security Configuration Management, and Vulnerability tools.
  • Experience with SAN management and configuration, AIX OS, and Agile methodology.
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