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Ariston Services Hiring! Full Time Network Security Engineer in - Ricebowl

Network Security Engineer

Ariston Services

Undisclosed

Singapore

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Working Location

  • Singapore

Job Description

Responsibilities

Job Description: Security Network Engineer – Cloud Migration (Grade 5)

Job Summary:

The Security / Network Engineer is responsible for supporting migration teams by implementing secure network connectivity, firewall configurations, and security controls required for migration between on-premise and Azure environments. This role ensures compliance with enterprise security standards while enabling seamless and secure workload migration.

In addition, the role operates within a managed services environment, ensuring infrastructure and network services remain secure, available, and performant through proactive monitoring, troubleshooting, and incident resolution.

Key Responsibilities:

Network & Security Implementation

  • Implement firewall rule changes to support migration activities and ongoing operations.
  • Configure and manage network security devices (e.g., Fortigate, Palo Alto).
  • Support hybrid connectivity setup including VPN and ExpressRoute configurations.
  • Implement network segmentation and micro-segmentation strategies.
  • Enforce enterprise security policies and compliance requirements across environments.
  • Support secure connectivity between on-premise and Azure environments.

Azure Networking & Cloud Security

  • Configure and manage Azure networking components (VNets, NSGs, route tables, load balancers).
  • Implement and maintain secure access controls and network security principles in cloud environments.
  • Support design and implementation of secure hybrid architectures.
  • Assist in implementing security controls for cloud-based workloads.

Technical Support & Incident Management

  • Resolve incidents and service requests within agreed SLA timelines under general supervision.
  • Monitor network and security systems proactively to detect and mitigate issues.
  • Investigate, analyse, and troubleshoot network and security-related incidents.
  • Maintain accurate and timely updates in ticketing systems with resolution details.
  • Escalate complex issues to senior engineers or Technical Leads where required.

Service Delivery & Process Compliance

  • Ensure adherence to ITIL processes including Incident, Problem, and Change Management.
  • Support, track, and document change implementation activities.
  • Participate in security audits, compliance checks, and risk assessments.
  • Contribute to continuous improvement of security and network operations.

Collaboration & Knowledge Sharing

  • Work closely with migration teams, cloud engineers, and security architects.
  • Communicate effectively with stakeholders to support secure migration delivery.
  • Share knowledge and document solutions for recurring issues.
  • Support junior engineers and contribute to team capability development.

Required Skills & Qualifications

  • 3–5 years of experience in networking and security engineering.
  • Hands-on experience with:
  • Firewall administration (Fortigate, Palo Alto preferred)
  • Azure networking (VNets, NSGs, routing)
  • VPN and ExpressRoute connectivity
  • Network security principles and segmentation
  • Security policy implementation and compliance
  • Strong understanding of hybrid cloud networking architectures.
  • Experience supporting enterprise infrastructure and migration projects.

Key Competencies

  • Strong troubleshooting and analytical skills in network and security domains.
  • Ability to work in high-pressure, mission-critical environments.
  • Good communication and stakeholder engagement skills.
  • Attention to detail and strong documentation practices.
  • Customer-focused mindset with commitment to service excellence.

Qualifications & Certifications

  • Bachelor’s degree in IT, Computer Science, or related field (or equivalent experience).
  • Preferred certifications:
  • CCNA / CCNP (Networking)
  • Palo Alto, Fortinet, or other firewall certifications
  • Microsoft Certified: Azure Network Engineer Associate
  • Security certifications (e.g., CISSP, Security+) are advantageous
  • Experience with Zero Trust architectures.
  • Exposure to cloud security tools (Defender for Cloud, Sentinel).

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