Senior Network Engineer

Data-Connect-Technologies-Pte.-Ltd.; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

Data-Connect-Technologies-Pte.-Ltd. is seeking a network engineer to lead end-to-end delivery of LAN/WAN, DC and hybrid-cloud projects. You will design scalable architectures, implement security controls, and ensure smooth transitions to NOC operations.

Responsibilities include monitoring deployment, integration with NetGain, SIEM (QRadar), and automation with Python/Bash/Ansible, while maintaining documentation and handover materials.

Qualifications

• Deliver end-to-end delivery of network projects with on-prem and cloud integration.
• Design scalable, resilient network architectures including HA/segmentation.
• Implement security controls: firewalls, VPNs, IDS/IPS, Zero Trust.

Responsibilities

• Lead end-to-end delivery of network and security projects (LAN, WAN, DC, Hybrid Cloud).
• Execute deployment, configuration, migration, and cutover activities.
• Develop MOPs, implementation plans, and rollback procedures.
• Ensure smooth transition from project delivery to managed services/NOC operations.
• Design scalable, resilient network architectures (Campus, Data Centre, Multi-site).
• Produce HLD and LLD documentation.
• Implement segmentation, zoning, and high-availability (HA) designs.
• Support hybrid environments integrating on-prem and cloud.
• Deploy and integrate monitoring platforms such as NetGain Systems (Cloud Vista, EMedge).
• Configure SNMP, credential polling, and telemetry collection across network and server infrastructure.
• Define alert thresholds, policies, and tuning strategies aligned with operational baselines.
• Integrate monitoring with incident workflows and escalation models in NOC environments.
• Implement and manage firewalls (e.g., Palo Alto Networks, Fortinet, Check Point).
• Configure VPNs, NAT, IDS/IPS, and Zero Trust access controls.
• Support SIEM integration (e.g., QRadar) and log forwarding strategies.
• Ensure compliance with security frameworks (e.g., ISO 27001).
• Align project deliverables with managed services operating models (L1/L2/L3 support).
• Define monitoring KPIs, SLAs, and alerting thresholds for steady-state operations.
• Provide onboarding of devices into NMS platforms and ensure observability readiness.
• Work closely with NOC teams for knowledge transfer and operational acceptance.
• Develop automation scripts (Python, Bash, Ansible) for configuration deployment, monitoring onboarding, health checks and reporting.
• Improve operational efficiency through automation of repetitive tasks.
• Integrate APIs from network devices and monitoring tools where applicable.
• Provide L3 support for complex network and security issues.
• Conduct root cause analysis (RCA) and implement preventive improvements.
• Perform failover testing, performance tuning, and validation.
• Maintain detailed network diagrams and system documentation.
• Prepare project status reports, risk logs, and technical write-ups.
• Deliver as-built documentation and operational handover materials.

Skills

Network design

Security architecture

Automation scripting

Tools

NetGain Systems

Palo Alto Networks

Fortinet

Check Point

QRadar

Job description

Key Responsibilities

1. Project Delivery & Implementation

• Lead end-to-end delivery of network and security projects (LAN, WAN, DC, Hybrid Cloud)
• Execute deployment, configuration, migration, and cutover activities
• Develop MOPs, implementation plans, and rollback procedures
• Ensure smooth transition from project delivery to managed services/NOC operations

2. Network Design & Architecture

• Design scalable, resilient, and secure network architectures (Campus, Data Centre, Multi-site)
• Produce HLD and LLD documentation
• Implement segmentation, zoning, and high-availability (HA) designs
• Support hybrid environments integrating on-prem and cloud

3. Monitoring, Observability & NetGain Integration

• Deploy and integrate monitoring platforms such as NetGain Systems (Cloud Vista, EMedge)
• Configure SNMP, credential polling, and telemetry collection across network and server infrastructure
• Define alert thresholds, policies, and tuning strategies aligned with operational baselines
• Integrate monitoring with incident workflows and escalation models in NOC environments

4. Security Implementation

• Implement and manage firewalls (e.g., Palo Alto Networks, Fortinet, Check Point)
• Configure VPNs, NAT, IDS/IPS, and Zero Trust access controls
• Support SIEM integration (e.g., QRadar) and log forwarding strategies
• Ensure compliance with security frameworks (e.g., ISO 27001)

5. Managed Services & NOC Alignment

• Align project deliverables with managed services operating models (L1/L2/L3 support)
• Define monitoring KPIs, SLAs, and alerting thresholds for steady-state operations
• Support onboarding of devices into NMS platforms and ensure observability readiness
• Work closely with NOC teams for knowledge transfer and operational acceptance

6. Automation & Optimization

• Develop automation scripts (Python, Bash, Ansible) for:
  • Configuration deployment
  • Monitoring onboarding
  • Health checks and reporting
• Improve operational efficiency through automation of repetitive tasks
• Integrate APIs from network devices and monitoring tools where applicable

7. Troubleshooting & Performance Optimization

• Provide L3 support for complex network and security issues
• Conduct root cause analysis (RCA) and implement preventive improvements
• Perform failover testing, performance tuning, and validation

8. Documentation & Reporting

• Maintain detailed network diagrams and system documentation
• Prepare project status reports, risk logs, and technical write-ups
• Deliver as-built documentation and operational handover materials