Network Engineer / Network Security Engineer (Ref 26502)

JOBLINE RESOURCES PTE. LTD.; Singapore; On-site; SGD 180,000 - 240,000; Full time

Job summary

JOBLINE RESOURCES PTE. LTD. seeks a senior network security architect to define and lead the security strategy across on‑prem, cloud, and hybrid environments.

You will design and manage NGFW, IDS/IPS, VPN, NAC, and cloud security solutions, while enforcing policies, conducting root-cause analysis, and mentoring engineers. Strong automation and cross‑functional collaboration are essential for success.

Qualifications

• Bachelor's degree or equivalent practical experience in IT or related field.
• Experience with enterprise network security technologies including NGFW, IDS/IPS, VPN, and cloud security.
• Strong incident, change, and problem management capabilities and risk assessment.

Responsibilities

• Define, architect, and drive the organization's network security strategy across on-premises, cloud, and hybrid environments.
• Design, implement, and manage enterprise network security solutions including NGFW, IDS/IPS, VPN, NAC, and cloud security.
• Provide technical leadership and mentor L1–L3 engineers, drive automation and continuous service improvement.

Skills

Enterprise network security

NGFW/IDS-IPS/VPN

Zero Trust (ZTA)

SASE

Cloud security (AWS/Azure/GCP)

Python automation

Ansible

Network segmentation

Education

Bachelor's degree in Information Technology, Computer Science, or related discipline

Tools

F5

Cisco ISE

Splunk

Microsoft Sentinel

Wireshark

tcpdump

Python

Ansible

Job description

Responsibilities

• Define, architect, and drive the organization's network security strategy across on-premises, cloud, and hybrid environments.
• Design, implement, and manage enterprise network security solutions, including NGFW, IDS/IPS, VPN, Load Balancers, NAC, and cloud network security.
• Develop, enforce, and maintain network security policies, standards, and best practices.
• Serve as the L4 technical escalation point for complex network security incidents, conducting root cause analysis and driving permanent resolutions.
• Lead network security architecture for cloud platforms (AWS, Azure) and support Zero Trust, SASE, and other modern security initiatives.
• Develop, maintain, and validate network security components of Disaster Recovery (DR) and Business Continuity (BC) plans.
• Evaluate, recommend, and implement emerging network security technologies to enhance the organization's security posture.
• Produce and maintain high-quality technical documentation, including HLDs, LLDs, and operational procedures.
• Manage incident, problem, and change activities, ensuring timely resolution, SLA compliance, accurate documentation, and stakeholder communication.
• Proactively identify opportunities for automation, process optimization, and continuous service improvement.
• Provide technical leadership, mentoring, and knowledge transfer to L1–L3 engineers, fostering operational excellence.
• Collaborate with cross-functional teams, clients, and stakeholders to deliver secure, reliable, and scalable network services.

Requirements

• Bachelor's degree in Information Technology, Computer Science, or a related discipline, or equivalent practical experience.
• Strong technical expertise in enterprise network security technologies, including NGFW (Cisco/Fortinet), IDS/IPS, WAF, VPN, NAC, Zero Trust (ZTA), SASE, network segmentation, and cloud network security (AWS, Azure, GCP).
• Experience with F5, Cisco ISE, Splunk, Microsoft Sentinel, Wireshark, tcpdump, and security automation using Python and Ansible.
• Knowledge of security products and platforms such as Fortinet, RSA, Tenable, Trend Micro, or equivalent solutions.
• Proven experience in incident, change, and problem management, with strong risk assessment and change implementation capabilities.
• Excellent analytical, troubleshooting, and root cause analysis skills in complex enterprise environments.
• Strong communication, stakeholder management, and client service skills, with the ability to work effectively across cross-functional teams and diverse cultures.
• Relevant industry certifications such as CCNP Security, CCIE Security, CISSP, PCNSE certifications are highly desirable.
• Self‑motivated, adaptable, and able to manage multiple priorities while delivering high-quality results in a fast‑paced environment.
• Demonstrated ability to mentor team members, share knowledge, and contribute to continuous service improvement.