Network Engineer

ACCORD INNOVATIONS PTE. LTD.; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

ACCORD INNOVATIONS PTE. LTD. in Singapore seeks an experienced Network Security Engineer to support and maintain enterprise security infrastructure, including firewalls, VPN, IDS/IPS and proxy services.

You will work with Level 1 teams and business stakeholders to resolve security incidents and implement changes. You will provide Level 2 production support, monitor performance, assist in vulnerability remediation, and help drive security hardening and project delivery in a busy financial

Qualifications

• Minimum 3 years of experience in Cybersecurity / Network Security support, or ~6 years of IT infra experience in financial services.
• Strong understanding of LAN, WAN, MAN and VPN environments.
• Hands-on experience with enterprise firewalls, VPN, proxy, IPS/IDS and network infrastructure.
• Knowledge of encryption, certificates and authentication technologies such as Kerberos.
• Experience with incident, request and change-management processes.
• Experience with vulnerability remediation and infrastructure hardening.

Responsibilities

• Provide Level 2 production support for network and security infrastructure.
• Handle security-related incidents, service requests and change requests.
• Troubleshoot and resolve network and security issues within agreed service levels.
• Support firewall flow management, firewall policy changes and security rule administration.
• Manage and support VPN, remote access and IP-related services.
• Support proxy infrastructure and related connectivity issues.
• Monitor and maintain the performance and effectiveness of network security infrastructure.
• Support vulnerability remediation and security hardening activities.
• Perform network security infrastructure upgrades and technology refresh activities.
• Support the implementation of network security projects and infrastructure changes.
• Maintain accurate documentation, SOPs, operational procedures and knowledge articles.

Skills

Network security

Firewalls

VPN

IDS/IPS

Troubleshooting

Incident management

Tools

Python

Bash

Ansible

Wireshark

TShark

NetFlow

Job description

Job Summary

We are seeking an experienced Network Security Engineer to support and maintain enterprise network and cybersecurity infrastructure. The successful candidate will be responsible for day-to-day operational support across network security environments, including firewalls, IPS/IDS, proxy, VPN, remote access, LAN/WAN infrastructure, load balancers, DNS/DHCP and vulnerability remediation . The role requires strong troubleshooting and incident-management capabilities, together with hands‑on experience supporting enterprise network and security technologies in a production environment. The engineer will also work closely with Level 1 teams, technology teams and business stakeholders to resolve security incidents, implement changes, maintain infrastructure security and support network security projects.

Key Responsibilities

• Provide Level 2 production support for network and security infrastructure.
• Handle security-related incidents, service requests and change requests .
• Troubleshoot and resolve network and security issues within agreed service levels.
• Support firewall flow management, firewall policy changes and security rule administration.
• Manage and support VPN, remote access and IP-related services .
• Support proxy infrastructure and related connectivity issues.
• Monitor and maintain the performance and effectiveness of network security infrastructure.
• Support vulnerability remediation and security hardening activities.
• Perform network security infrastructure upgrades and technology refresh activities.
• Support the implementation of network security projects and infrastructure changes.
• Maintain accurate documentation, SOPs, operational procedures and knowledge articles.
• Maintain network security IT assets and CMDB information.
• Support routers, switches, firewalls, LAN, WAN and VPN infrastructure.
• Perform installation, configuration and maintenance of firewalls, VPN solutions, routers and IDS/IPS technologies.
• Provide technical guidance and support to Level 1 security/network teams.
• Investigate and respond to security incidents, including malware, phishing and potential data-security incidents.
• Support security infrastructure monitoring, troubleshooting and continuous improvement.
• Manage and maintain DNS and DHCP services.
• Work with relevant technology teams to identify root causes and implement permanent solutions.
• Ensure changes and operational activities follow established security, compliance and change-management processes.

Network & Security Technologies

• Cisco
• Cisco ACI
• Cisco Nexus
• Cisco Catalyst
• Cisco DNA Center (DNAC)
• Cisco ISE
• Cisco IOS
• Cisco NX-OS
• Arista
• Arista switches
• Arista EOS
• Fortinet
• FortiGate Firewall
• Fortinet IPS
• F5
• F5 LTM
• F5 ASM
• F5 APM
• F5 TMOS
• Infoblox
• DNS
• DHCP
• Skyhigh
• Proxy / Secure Web Gateway technologies
• Ivanti
• Remote Access solutions
• Check Point
• Check Point Firewall
• Check Point Management / MDS
• Trend Micro
• IPS / IDS and security solutions

Tools & Automation

• Python
• Bash
• Ansible
• Wireshark
• TShark
• NetFlow

Required Skills & Experience

• Minimum 3 years of experience in Cybersecurity / Network Security support , or approximately 6 years of overall IT systems/network infrastructure experience with relevant financial-services experience .
• Strong understanding of LAN, WAN, MAN and VPN network environments.
• Strong understanding of network security concepts.
• Hands‑on experience supporting enterprise firewalls, VPN, proxy, IPS/IDS and network infrastructure.
• Good understanding of network security concepts including encryption, certificates and authentication technologies such as Kerberos .
• Experience troubleshooting complex network and security issues in a production environment.
• Experience with incident, request and change-management processes.
• Experience with vulnerability remediation and infrastructure hardening.
• Good understanding of network topology and enterprise connectivity.
• Exposure to emerging network and cybersecurity technologies.
• Strong analytical and logical troubleshooting skills.
• Excellent communication and interpersonal skills.
• Customer-service oriented with the ability to work effectively as part of a team.
• Ability to work under pressure and manage multiple incidents or priorities.
• Willingness to work rotational shifts and participate in on-call support .

Financial Services Experience

• Experience working in a banking, financial-services or other regulated environment will be highly advantageous.
• Candidates should understand the importance of security controls, operational procedures, compliance requirements, documentation and controlled change management within a regulated technology environment.

Compliance Responsibilities

• Comply with applicable legal, regulatory and internal compliance requirements.
• Follow organizational security