607 IT Security Specialist jobs in Singapore

We are seeking a seasoned Network Security Engineer to join our team. As a Network Security Specialist, you will play a vital role in designing and implementing secure network architectures that safeguard our systems from cyber threats.

• Design and implement robust security policies to protect against unauthorized access.
• Configure and manage firewalls, including Palo Alto and similar security technologies.
• Monitor and respond to security incidents in a timely manner.
• Collaborate with cross-functional teams to enhance overall network security.

• 5+ years of experience in network or security roles.
• Strong knowledge of Palo Alto firewalls (or similar tools like Fortinet, Cisco).
• Good understanding of network fundamentals (IP, VPNs, firewalls, routing).
• Experience with security tools (IDS/IPS, VPNs, threat monitoring).
• Certifications like PCNSE, CISSP, or CCNP Security are highly valued.

• A challenging and rewarding role with opportunities for growth and development.
• Competitive compensation and benefits package.
• A dynamic and collaborative work environment.

If you are a skilled Network Security Engineer looking for a new challenge, please submit your application.

• Perform real-time analysis and trending of security log data from various devices and systems.
• Maintain data sources feeding the log monitoring system, develop and maintain detection and alerting rules.
• Respond to user-reported incidents, assessing severity and type of security events.
• Execute initial triage to rule out false positives and escalate genuine threats.
• Identify recurring security issues, develop mitigation plans, and recommend process improvements.
• Configure, manage, and troubleshoot LAN, WAN, and VPN environments.
• Administer and optimize routers, firewalls, IPS, proxies, and load balancers for peak performance.
• Manage network security IT assets (firewalls, routers, switches, DNS/DHCP servers, and related devices).
• Oversee firewall flows, proxy configurations, remote access, and IP/VPN setups.
• Complete mandatory training and maintain professional certifications,

Requirements:

Required Skills:

• Minimum 6 years of IT systems management experience with at least 2 years in financial institutions; OR
• Minimum 3 years as a Cybersecurity Support Engineer.
• Solid understanding of network topologies (LAN, WAN, MAN, VPN) and security concepts (encryption, certificates, Kerberos).
• Experience in security monitoring, log analysis, and incident triage.
• Familiarity with vulnerability management and remediation processes.
• Cisco: ACI, Nexus, Catalyst, DNAC, ISE, iOS, NXOS
• Arista: Switches, EOS
• Fortinet: Firewall, IPS
• F5: LTM, ASM, APM, TMOS
• Infoblox: DNS, DHCP
• Skyhigh: Proxy
• Ivanti: Remote access
• Checkpoint: Firewall, MDS
• Trend Micro: IPS/IDS

Our organization is seeking a highly skilled Network Security Engineer to join our team. As a Network Security Engineer, you will play a key role in designing, engineering, and executing next-generation network transformation solutions.

The ideal candidate will possess deep expertise in Network Security technologies such as Firewalls, Intrusion Detection & Prevention Systems (IDPS), Web Application Firewalls (WAF), Micro-segmentation, Web Proxies, and DNS.

• Bachelor's or Master's degree in Computer Science, Information Technology, or related field
• Certifications: CISSP, CCSA, CCSE, PCNSE, ICE, BIG-IP ASM Specialist or equivalent
• 10 to 15 years of experience in Network Security technologies

We offer a collaborative environment with opportunities for growth and skill enhancement.

As a Network Security Engineer, you will have the opportunity to work on cutting-edge technologies and be part of a network transformation project.

• Execute operational tasks for network security solutions, including network firewalls, intrusion prevention systems (IPS), proxies and web application firewalls (WAF).
• Monitor the performance and maintain network security solutions.
• Utilize various tools and solutions to troubleshoot and diagnose network problems.
• Identify and provide insight on WAF violations.
• Post office-hours activation for support and troubleshooting.
• Perform data tabulation and report extraction.
• Configure and install various network devices and services (e.g., routers, switches, firewalls, load balancers, VPN, QoS).
• Perform network maintenance and system upgrades including service packs, patches, hot fixes and security configurations.
• Monitor performance and ensure system availability and reliability.
• Monitor system resource utilization, trending, and capacity planning.
• Provide Level-2/3 support and troubleshooting to resolve issues.
• Work within established configuration and change management policies to ensure awareness, approval and success of changes made to the network infrastructure.
• Select and implement security tools, policies, and procedures in conjunction with the company's security team.
• Liaise with vendors and other IT personnel for problem resolution.
• Handle request and perform necessary network configuration.
• Coordinate the troubleshooting and incident root cause analysis for the managed equipment. It might include troubleshooting with other parties.
• Review new release of vulnerabilities and provide recommendation to HDB. It includes obtaining of firmware, schedule and coordinate firmware patching with testers.

• Possess knowledge on networking protocols and technologies like TCP/IP, VLANs, VPNs, and routing/switching.
• Possess fundamental application security knowledge like interpretation of HTTP response status codes and WAF violations.
• Proficient with network equipment from vendors like Palo Alto, Check Point, Trend Micro, Fortinet and F5.
• Experience in solutions that supports the primary job tasks, like Network Performance Monitoring (NPM) and Security Information and Event Management (SIEM).
• Understanding of network security best practices and tools.
• Strong problem-solving skills and ability to work under pressure. Willingness to learn.
• Fundamental skills on Microsoft Office products like Word and Excel.
• Additional certifications like CCNA, CCNP or product (with reference to products listed above) certifications are a plus.

Senior ICT Security Architect Job Description

We are seeking an experienced Senior ICT Security Architect to lead our team in designing and implementing secure, high-performance network infrastructure.

The successful candidate will be responsible for the end-to-end architecture planning, service development, cybersecurity integration, and hands-on deployment of network solutions.

• Design and document campus network architecture, including wired and wireless solutions.
• Develop physical and logical designs, High-Level Designs (HLDs), Low-Level Designs (LLDs), and configuration templates for scalable and secure deployments.
• Align network architecture with enterprise and customer requirements.

• Define the network technology roadmap and evaluate new releases, solutions, and SDN features.
• Lead implementation of Firewalls, SD-WAN, Proxy, SASE, ZTNA, and other trending solutions.
• Integrate network solutions with observability tools, automation, and service management platforms.
• Adopt a secure by design thinking approach on all related cybersecurity projects.

• Develop network service offerings with defined SLAs, cost models, and support tiers.
• Create engineering playbooks, reusable design patterns, and presales collateral.
• Package network infrastructure into a managed service model.
• Perform physical mounting, racking of equipment, configuration, and user acceptance testing for managed services projects.

• Design and enforce network access policies, segmentation, and NAC solutions.
• Integrate firewall rules, 802.1x, and Zero Trust principles into LAN/WLAN designs.
• Collaborate with cybersecurity teams to ensure compliance with standards such as PDPA, CSA CyberTrust Mark, and ISO 27001.

• Guide network engineers and delivery teams on network and security solutions.
• Lead technical discussions with customers, vendors, and internal stakeholders.
• Act as a subject matter expert (SME) during RFPs, project bids, and architecture reviews.
• Provide timely project updates and self-manage deliverables.

• Degree in IT, Computer Science, or a related field.
• Advanced certifications in networking (e.g., CCNP, NSE 5,6,7) or other network security (e.g., firewall and switching certifications) preferred.

• Strong knowledge of network segmentation, VLAN, ACL, QoS, and firewall policy integration.
• Familiarity with automation (e.g., Python, APIs) and SDN/intent-based networking.
• Experience with cloud platforms (e.g., Azure, AWS) for hybrid environment setups is a plus.

• Strong troubleshooting and analytical abilities.
• Effective communication across technical and non-technical teams.
• Ability to lead teams, provide mentorship, and engage in solution advisory.
• Excellent customer service skills and a proactive, adaptable attitude.

As a key member of our cybersecurity team, you will play a vital role in ensuring the security and integrity of our network infrastructure. This L2 support position requires a strong understanding of LAN/WAN/VPN topologies and network security concepts.

• Provide Level 2 support for cybersecurity and network infrastructure.
• Handle incident, request, and change management tickets.
• Conduct vulnerability remediation and infrastructure hardening.
• Support and maintain network security assets: firewalls, routers, switches, VPN, proxy, IDS/IPS, etc.
• Assist in DNS/DHCP management and remote access solutions.
• Maintain and update security SOPs and documentation.
• Participate in network security projects and infrastructure upgrades.
• Provide technical guidance to Level 1 security teams.
• Support security awareness programs and respond to cyber incidents.
• Manage CMDB and lifecycle tracking for security infrastructure.

• Minimum 6 years of experience in managing IT systems environment with about 3 years of experience in financial institutes or minimum 3 years' of work experience as a Cybersecurity support Engineer.
• Experience in financial institutions is a strong advantage.
• Solid understanding of LAN/WAN/VPN topologies and network security concepts.
• Hands-on experience with vulnerability remediation and change controls.
• Strong troubleshooting, communication, and teamwork skills.
• Experience with network and security technologies, including:
• Firewalls: Fortinet, Checkpoint
• Switches/Routers: Cisco (Nexus, Catalyst, ACI), Arista
• Load Balancers & Proxies: F5 (LTM/ASM/APM), Skyhigh
• DNS/DHCP: Infoblox
• Remote Access: Ivanti
• IDS/IPS: TrendMicro
• Familiar with scripting in Python, Bash, or Ansible.
• Skilled in tools like Wireshark, NetFlow, Tshark.
• Shift-based support covering Europe and Asia time zones.

This is an excellent opportunity to join a dynamic team and contribute to the development of cutting-edge security solutions. If you are passionate about cybersecurity and have the necessary skills and experience, please apply for this challenging role.

The ideal candidate will possess a strong understanding of network security concepts, including TCP/IP, routing protocols, VPNs, and IDS/IPS. They should also have experience managing firewalls in hybrid environments and be familiar with security frameworks and compliance standards.

• Manage firewalls in hybrid environments, including cloud (AWS, Azure, GCP) and on-premises networks.
• Implement and administer major firewall platforms such as Palo Alto Networks, Fortinet, Cisco ASA/Firepower, or Check Point.
• Analyze complex network security incidents and implement effective solutions.
• Develop and maintain deep understanding of TCP/IP, routing protocols, VPNs, IDS/IPS, and network architecture.

• Bachelor's degree in Computer Science, Information Technology, Cybersecurity, or related field.
• Minimum 7-10 years of hands-on experience in network security, specifically firewall administration and management.
• Relevant certifications preferred: Palo Alto Networks Certified Network Security Engineer (PCNSE), Fortinet NSE 4/5/6, Cisco CCNP Security, Check Point CCSA/CCSE.

Cybersecurity Consultant

This role is ideal for a cybersecurity professional who wants to leverage their expertise in security operations, network infrastructure, and cloud services.

• Develop and document cybersecurity policies, procedures, and security guardrails.
• SUPPORT THE DEPLOYMENT, MAINTENANCE, AND REVIEW OF SECURITY TOOLS (e.g., firewalls, SIEM, antivirus, IDS/IPS).
• Collaborate with network and infrastructure teams to implement basic security configurations and controls.
• Participate in security risk assessments, vulnerability scans, and audits.
• Monitor security logs and alerts, triage events, and support incident response activities.
• Maintain asset inventories and configuration documentation related to security tools and processes.
• Contribute to compliance reporting and documentation efforts.
• Stay informed on cybersecurity trends, threats, and best practices—especially in telecom environments.

• Bachelor's degree in Cybersecurity, Information Technology, Computer Science, or a related field.
• 3-5 years of experience in a cybersecurity, network support, or IT security operations role.
• Basic knowledge of cybersecurity concepts: threat types, risk management, incident response, and data protection.
• Fundamental understanding of networking principles and protocols (TCP/IP, routing basics, firewalls, VPN, Encryption).
• Familiarity with security tools (e.g., SIEM, antivirus, firewall, vulnerability scanner).
• Willingsness to learn telecom-specific protocols and infrastructure concepts.
• Strong attention to detail and documentation skills.
• Excellent verbal and written communication skills.
• Entry-level cybersecurity certification (any of the following preferred): CompTIA Security+, Cisco Cyber Ops Associate, EC-Council Certified Security Analyst (ECSA) – Associate level.
• Networking certification (optional but advantageous): Cisco CCNA, CCNP or equivalent.
• Exposure to scripting or automation (Python, PowerShell) is a plus.

Licence no: 12C6060

• Security Operations
• Azure
• CCNA
• CCNP
• Documentation Skills
• Scripting
• Risk Management
• Information Technology
• Routing
• Networking
• Python
• Audits
• Encryption
• VPN

The Cybersecurity Engineer will be responsible for designing and implementing secure, resilient system architectures while ensuring security is embedded throughout the development lifecycle. This role requires a deep understanding of cybersecurity frameworks, threat modeling, and risk mitigation strategies to protect enterprise systems against evolving threats.

• Secure System Architecture & Design:
  • Design and implement robust security architectures for enterprise systems, applications, and cloud environments.
  • Develop security blueprints, reference architectures, and design patterns to standardize secure development practices.
  • Ensure security-by-design principles are integrated into all phases of the Software Development Lifecycle.
• Risk Mitigation & Threat Modeling:
  • Conduct threat modeling (e.g., STRIDE, DREAD) to identify vulnerabilities in system designs.
  • Define security controls to mitigate risks from emerging technologies (e.g., cloud, IoT, AI).
  • Perform security impact assessments for new business initiatives and technology deployments.
• Security Integration & Compliance:
  • Align security architectures with industry standards (NIST CSF, ISO 27001, CIS, OWASP).
  • Ensure compliance with regulatory requirements (GDPR, HIPAA, PCI-DSS, SOC 2).
  • Collaborate with DevSecOps teams to integrate security into CI/CD pipelines.
• Security Documentation & Governance:
  • Produce detailed security design documents, including:
    Security architecture diagrams
    Data flow models with security controls
    Encryption and access control policies
  • Maintain security baselines for systems and applications.
  • Support audits, penetration tests, and vulnerability assessments.

• Education & Experience
  • Bachelor's/Master's in Cybersecurity, Computer Science, or related field.
  • 3-5+ years in cybersecurity, with a focus on secure architecture design, risk assessment, or cloud security.
  • Hands-on experience with:
    Cloud security (AWS/Azure/GCP) and hybrid environments.
    Identity & Access Management (IAM), PKI, and encryption.
    SIEM, EDR/XDR, firewalls, and network security.
• Technical Competencies
  • Security Frameworks: NIST, ISO 27001, CIS, MITRE ATT&CK.
  • Threat Modeling Tools: Microsoft Threat Modeling Tool, OWASP Threat Dragon.
  • Security Automation: Experience with IaC (Terraform, Ansible) and DevSecOps tools (GitLab, Jenkins).
• Certifications (Preferred)
  • CISSP, CCSP, CISA, CISM, AWS/Azure Security, SABSA, TOGAF.
• Soft Skills
  • Strong analytical and problem-solving abilities.
  • Ability to translate technical risks into business impacts.
  • Excellent communication and stakeholder management skills.