Senior Network Engineer

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

DATA CONNECT TECHNOLOGIES PTE. LTD.

IT CONSULTANCY AND SYSTEM INTEGRATION

A Dynamic Information & Communication Technology Service/Solution provider in Singapore. We empower organizations with experience IT Professional using established process in a timely and cost-effective manner.