Senior Network & Infrastructure Engineer

Hitachi Sunway Information Systems; Singapore; On-site; SGD 60,000 - 90,000; Full time

Job summary

Hitachi Sunway Information Systems is seeking an experienced IT Infrastructure professional in Singapore to design, implement, and maintain network solutions including routers, switches, firewalls, and SDWAN. The role requires independent work to perform scratch installs, upgrades, backups, and troubleshooting to ensure high availability.

Ideal candidates will understand Zero Trust, manage Azure/AWS cloud integrations, and collaborate with internal teams for SAP/Cloud-related projects.

Qualifications

• CCNA or equivalent certification required.
• Experience with HPE Aruba SDWAN, Fortinet FortiGate, and Secure Wireless LAN.
• Minimum 4–6 years in IT infrastructure.

Responsibilities

• Design, configure, and implement network solutions (routers, switches, firewalls, wireless APs, SDWAN).
• Understand Zero Trust concepts and apply them to client environments.
• Perform scratch-base installation, backup, restore, configuration, and upgrades of network equipment.

Skills

Cisco CCNA or equivalent

HPE Aruba SDWAN

Fortinet FortiGate & Secure Wireless L

Azure & AWS cloud

Education

Cisco CCNA or equivalent

Tools

Azure

AWS

Job description

• Design, configure, and implement network solutions, including routers, switches, firewalls, wireless access points and SDWAN.
• Understand Zero trust
• Good experience and able to work independently to perform scratch base installation, backup, restore, configure, upgrade network equipment.
• Monitor network performance and troubleshoot issues to ensure high availability and reliability.
• Perform regular maintenance and upgrades on network devices and systems.
• Document network configurations, processes, and procedures for reference and compliance.

IT infrastructure

• Brings a broad understanding of IT infrastructure and support services. This role involves working closely with internal teams to deliver high-quality IT services to our clients
• Experience tech windows server with application and able lead the tech refresh project for AD upgrade, file server migration, integration with cloud or new solution
• Experience performing server hardening align to CIS
• Familiarity with Microsoft 365, server deployment, and end-user support
• Familiarity with RDS, network radius design and troubleshoot
• Able to support on urgent or weekend for OS or network maintenance when needed on operation or project need
• Good to have experience with Azure, AWS cloud, PAM system
• Good to have experience to setup, manage full Azure landscape for SAP system
• Collaborate with the sales team to identify and qualify potential opportunities for network & server solutions
• Conduct technical assessments of client requirements and translate them into effective network, server designs and proposals
• Develop and present compelling technical presentations and demonstrations to clients, showcasing our network & server solutions
• Provide expert advice on network architecture, design, and implementation best practices
• Assist in the preparation of RFPs, RFQs, and other technical documentation as needed

Required Skills / Experience / Education / Certifications:-

• Cisco CCNA or equivalent
• HPE Aruba SDWAN
• Fortinet FortiGate and Secure Wireless LAN
• Allied Telesis
• Minimum 4-6 years of experience in IT infrastructure business

Personal Attributes:-

• Customer-oriented and highly responsive
• Proactive, self-driven, and capable of independent decision-making
• Ability to work in a fast-paced, multi-project environment