IT Infrastructure Specialist

Siemens Mobility; Singapore; On-site; SGD 70,000 - 120,000; Full time

Benefits offered by this job

Flexible Work Environment

Competitive Compensation & Benefits

Values-Driven Culture

Continuous Learning & Development

Job summary

Siemens Mobility in Singapore is seeking a skilled Network Engineer to optimize enterprise IT and OT networks across plants, offices and data centers. You’ll configure VLANs, VPNs, firewall policies and network services to ensure reliability and security.

The role emphasizes hands-on networking with Layer 2/3 technologies, network monitoring, incident resolution, and collaboration with global teams. A Bachelor's degree in Computer Science or related field is required.

Qualifications

• Educational background in technology or engineering with a Bachelor's degree in Computer Science, IT, Network Engineering, Communication Engineering, Automation, or related discipline.

Responsibilities

• Operating and optimizing enterprise IT and factory OT networks across plants, offices, and data centers.
• Managing network infrastructure including switches, routers, firewalls, wireless controllers, access points, and WAN/SD-WAN.
• Supporting Layer 2/Layer 3 networking, VLANs, STP, routing, DHCP, DNS, NTP, IP addressing, VPNs, and related services.
• Ensuring wireless network performance, monitoring, troubleshooting, and coverage optimization.
• Maintaining network security and IT/OT segmentation with firewall policies, NAT, ACLs, VPNs, 802.1X, NAC, and cybersecurity compliance.

Skills

Networking fundamentals

L2/L3 networking

Network troubleshooting

English communication

Education

Bachelor's degree in Computer Science or related

Tools

VLANs

VPNs

Firewall policies

Job description

We empower our people to stay resilient and relevant in a constantly changing world. We’re looking for people who are always searching for creative ways to grow and learn. People who want to make a real impact, now and in the future. Does that sound like you? Then it seems like you’d make a great addition to our vibrant international team.

You’ll make a difference by:

• Operating and optimizing enterprise IT and factory OT networks across manufacturing plants, production workshops, offices, and data centers, ensuring reliable and secure network services.
• Managing network infrastructure and connectivity including switches, routers, firewalls, wireless controllers, access points, WAN/SD-WAN solutions, and network management platforms.
• Supporting Layer 2/Layer 3 networking and core services by configuring and troubleshooting VLANs, STP, link aggregation, gateway redundancy, routing protocols, DHCP, DNS, NTP, IP addressing, VPNs, and related services.
• Ensuring wireless network performance and availability through monitoring, troubleshooting, and optimization of coverage, capacity, interference, roaming, authentication policies, and client connectivity.
• Maintaining network security and IT/OT segmentation by supporting firewall policies, NAT, ACLs, VPNs, 802.1X, NAC, RADIUS/TACACS+, certificate-based authentication, and cybersecurity compliance requirements.
• Driving operational excellence and project delivery by supporting factory digitalization initiatives, infrastructure upgrades, incident resolution, documentation, topology management, change processes, and collaboration with global teams and vendors.
• Educational background in technology or engineering with a Bachelor's degree in Computer Science, Information Technology, Network Engineering, Communication Engineering, Automation, or a related discipline.
• Strong networking fundamentals including Layer 2 and Layer 3 technologies such as VLANs, STP, link aggregation, gateway redundancy, IPv4 subnetting, and dynamic routing protocols.
• Hands‑on experience with enterprise networking technologies including switches, routers, firewalls, wireless networks, and troubleshooting across wired and wireless environments.
• Knowledge of network protocols and security controls including TCP/IP, ARP, ICMP, DHCP, DNS, NTP, SNMP, Syslog, AAA, NAT, VPN, IT/OT segmentation, access control, and least‑privilege principles.
• Proficiency in network operations and troubleshooting using packet captures, ping, traceroute, logs, monitoring tools, and ITSM incident, request, problem, and change management processes.
• Strong collaboration and communication skills with the ability to work on‑site, coordinate across teams and vendors, communicate effectively in English, and support planned maintenance or emergency response activities when required.

In return, we offer you:

• Flexible Work Environment: Including a mobile working policy that supports your well‑being and allows you to prioritize what matters most.
• Competitive Compensation & Benefits: A comprehensive package to reward your contributions.
• Values‑Driven Culture: An inclusive workplace that prioritizes diversity and belonging.
• Continuous Learning & Development: Opportunities to grow your skills and advance your career.

Recruitment Process:

• CV Screening
• If shortlisted, a session with our TA Consultant to understand your motivation & your past experiences
• 1-3 Business Interviews
• Offer Stage

Transform the everyday with us!

We value your unique identity and perspective and are fully committed to providing equitable opportunities and building a workplace that reflects the diversity of society. Come bring your authentic self and create a better tomorrow with us.