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Senior Network and Security Engineer

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JCDECAUX ASIA (S) PTE LTD logoJcdecaux Asia (s) · Harbourfront Tower One, Singapore
S$102K–S$114K/yrFull-timeUnknownToday
Information Technology
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Requirements

  • 15 years of experience in network and security engineering/operations in large complex environments (multisite, international, hybrid cloud).
  • Degree in computer Science or equivalent, industry certifications desirable
  • Strong expertise in routing protocols, especially BGP
  • Solid experience with SD WAN solutions with various manufacturer standards, Paloalto, Cisco, Velo Cloud etc.
  • Good knowledge of cloud connectivity (interconnection with major cloud providers)
  • Strong understanding of LAN/WAN architectures, VLANs, QoS, redundancy, and high availability
  • Hands on experience with firewalls (design, policies, troubleshooting)
  • Proficiency in VPN technologies: IPSec and SSL
  • Knowledge and practice of SASE concepts and solutions
  • Good understanding of security best practices in network design and operations

Additional Information

You will be a key technical reference for the design,implementation, and day‑to‑day operations of our global network and securityinfrastructures, supporting a highly distributed, international environment. Role Synopsis and profile As a Network & Security Expert within the Corporate IT Infrastructures team, you will: Design & operate network infrastructure Design, implement, and operate LAN/WAN architectures Manage and optimize cloud connectivity (interconnection with public clouds) Act as Routing (BGP) expert, ensuring performance, resilience, and scalability Contribute to the design, rollout, and tuning of SD‑WAN solutions Lead regional network projects and collaborate with international IT teams Design & operate security infrastructure Operate and improve firewalling solutions in line with IT security policies Manage and secure IPSec / SSL VPN for remote sites and users Contribute to SASE architecture design, deployment, and operations Operations & Performance Operate network, security, and related system components on a daily basis Monitor infrastructure health and performance (capacity, latency, availability) Proactively identify bottlenecks and implement optimizations and improvements Ensure a high level of availability and service continuity for critical services Incident & Problem Management Acknowledge, qualify, and categorize incidents and service requests Troubleshoot complex network and security issues (L2-L4+) Coordinate escalation to internal and external experts/vendors when necessary Contribute to root‑cause analysis and long‑term corrective actions Support & Collaboration Provide Level 3 expertise and support to local IT teams worldwide Advise users and managers on new products, solutions, and best practices Train IT staff and key users on network and security solutions Work closely with cross‑functional project teams (infrastructure, applications, security, etc.) Documentation & Governance Produce and maintain up‑to‑date technical documentation (diagrams, procedures, standards) Contribute to the definition and application of IT policies and standards Provide regular reporting to Infrastructure Managers (status, risks, improvements)


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