Senior Network Engineer

data connect technologies pte. ltd.; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

data connect technologies pte. ltd. is seeking a seasoned network and security engineer to lead end-to-end project delivery across LAN, WAN, data centre, and hybrid cloud environments.

You will drive network design, implement security controls, integrate NetGain monitoring, and collaborate with NOC teams to ensure smooth handover to managed services. Automation (Python, Bash, Ansible), RCA, and documentation are key focus areas.

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, and secure network architectures (Campus, Data Centre, Multi-site).
• Produce HLD and LLD documentation.
• Implement segmentation, zoning, and high-availability 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 (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.
• Support 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

L3 support

Root cause analysis

Automation scripting

Tools

Python

Bash

Ansible

NetGain Systems

QRadar

Palo Alto

Fortinet

Check Point

SNMP

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