Senior Network Administrator

This role is for the entity, Banking Computer Services Pte Ltd. The incumbent will be expected to provide support to the Manager, INFSVC to
- Deliver the IT infrastructure services strategies and manage infrastructure-related issues, which directly or indirectly impact business performance. This includes the evaluation, conceptualisation, development, implementation, maintenance and support of IT infrastructure systems.
- Be responsible for the achievement of short-term operational targets of the INFSVC division
- Possess a fair degree of autonomy in determining the work processes in its job area and is required to review the existing work processes in its work area and recommend ways to make small improvements.
- Guide junior level staff on the accomplishment of tasks within a defined job area.

Key Responsibilities

Network Administration
- Perform system and network administration in a heterogeneous environment (production, DR, test) comprising of network & security equipment (eg. routers, firewalls, cryptography equipment), telecommunication links and Sun Solaris servers and Windows-based servers
- Configure firewall rules and monitor the intrusion detection systems
- Perform system and network upgrade and enhancement on IT infrastructure components
- Implement network, operating system and product-specific security hardening & patches
- Monitor obsolescence of IT infrastructure components (network systems)
- Monitor expiry and perform renewal of network system password and certificates
- Implement a schedule of system and network backups operations to ensure data recoverability and business continuity
- Develop and implement disaster recovery plans for IT infrastructure (network systems) and conduct regular disaster recovery testing and component switchover exercises to ensure usability of standby and DR equipment

Incident & Problem Management
- Provide 2nd level network support and resolve incidents and problems in accordance to established Service Level Agreement (SLA)
- Perform problem diagnosis on incidents and propose & implement measures to prevent recurrence

Change & Release Management
- Schedule and release network system changes to production environment in accordance to the change management process / procedures

Configuration Management
- Develop and maintain a comprehensive operating system hardware and software configuration database / library of all IT infrastructure components used in the production environment

Capacity & Performance Management
- Perform infrastructure system and network capacity monitoring and planning
- Monitor and perform performance tuning to optimize network performance

Process Management
- Devise and implement the underlying processes supporting IT service management, in conformance to corporate security policies and guidelines

Project Management & Support
- Provide infrastructure (system & network) support to projects in accordance to the project timeline
- Manages infrastructure enhancement / upgrade projects in accordance to established project management guidelines

Documentation
- Develop and maintain technical and process documents to upkeep IT infrastructure

**Requirements**:

- Degree in Information Technology and related discipline
- Preferably, attained CCNA, CCNP, MCSE, CCSA, CCSE
- Experience and Technical Skills Set
- At least 5 years hands-on experience in managing network and security equipment such as Firewalls, Intrusion Detection systems, Routers, Switches, Load Balancer, VPN, DNS
- Good to have experience/ industry certification for firewall and public cloud administration
- Proficiency with MS Word, MS Excel, MS Access and MS PowerPoint.