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HCL SINGAPORE PTE. LTD.

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Senior Infrastructure Network Engineer

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Job Responsibilities

  • Manage, maintain, and support enterprise network infrastructure, ensuring high availability, reliability, and optimal performance across LAN, WAN, wireless, and remote access environments.
  • Monitor network health, analyze performance metrics, and proactively identify opportunities for capacity planning, optimization, and continuous improvement.
  • Troubleshoot and resolve complex network, connectivity, and infrastructure issues while minimizing business impact and ensuring adherence to service level agreements (SLAs).
  • Configure, implement, and support routing, switching, DDI (DNS, DHCP, IPAM), wireless, and network security solutions.
  • Administer and maintain firewall technologies, VPN solutions, and secure remote access platforms in alignment with organizational security policies.
  • Collaborate with internal teams, vendors, and stakeholders to support infrastructure projects, system upgrades, migrations, and transformation initiatives.
  • Participate in incident, problem, and change management processes, ensuring timely resolution and effective risk mitigation.
  • Develop and maintain technical documentation, network diagrams, operational procedures, and knowledge base articles.
  • Provide technical guidance and support to junior team members while contributing to a culture of operational excellence and continuous improvement.
  • Work closely with customers and business stakeholders to understand requirements and deliver reliable, customer-focused network services.

Job Requirements

  • Bachelor’s degree in Computer Science, Information Technology, or a related field.
  • Minimum 7 years of experience in network engineering, network operations, infrastructure support, or related network services roles within enterprise environments.
  • Hands-on experience managing and supporting enterprise LAN/WAN infrastructure, routing and switching technologies, and network connectivity services.
  • Strong knowledge of DDI (DNS, DHCP, and IP Address Management), wireless networking, firewall administration, and network security principles.
  • Proven experience with network performance monitoring, capacity planning, incident management, and root cause analysis.
  • Experience working with enterprise networking technologies such as Cisco, Palo Alto, Fortinet, Aruba, and VPN/remote access solutions.
  • Demonstrated ability to troubleshoot complex network and infrastructure issues in fast-paced, mission-critical environments.
  • Strong customer engagement, stakeholder management, and service delivery capabilities.
  • Excellent communication and collaboration skills, with the ability to work effectively across cross-functional and geographically distributed teams.
  • Experience supporting infrastructure transformation, migration, or modernization projects is highly desirable.
  • Professional certifications such as Cisco CCNP/CCIE, Fortinet NSE, or Palo Alto PCNSA/PCNSE are preferred.
  • Fluency in the local language is required, with good written and verbal communication skills in English.
  • Willingness to work in a hybrid environment with a minimum of three days onsite at the customer location.

Skills

See also

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