2,780 IT Security jobs in Singapore

The IT Security Officer shall have at least one (1) year of relevant working experience and to provide the following:

• Provide subject matter expertise, oversight and reporting on all matters of security, and compliance, within scope of the engagement;
• Coordinating investigation, management, and responses to all security related incidents;
• GITSir Alerts
• GCSOC
• Operational oversight on all vulnerability assessments, audit log monitoring activities, baseline compliance and privilege user account administration;
• Yearly Security Awareness Training (Internal and Agency)
• Audit Service (validate RFI items and share with teams) update and promulgate account security policies, procedures, standards & guidelines and compliance to all FM and subcontractor personnel;
• Operational oversight of all FM and 3rd party leveraged security services;
• Periodic reporting to ITSM of current risk status gathered from numerous operational reports from the environments supported by NCS. Information security issues transcend the boundaries of discrete operational areas and requires that this information be presented within a number of broad best practice security categories: i.e. Threat, Vulnerability, Compliance and Incident Management.

These reports include:

• VMS (Nessus) reports
• Monthly security log review service
• Monthly security reporting Service
• Quarterly privilege access review service
• Monthly Imperva DAM
• Monthly Carbon Black
• Antivirus Report
• ACISO Scorecard (Patch Management, Asset Management)
• Account Review
• Asset inventory EOL, EOS and EOSL.
• ABLR Onboarding

The IT Security Officer shall also report to the MOH IFC Security team in managing BAU security functions and issues.

The IT Security Officer shall have at least one (1) year of relevant working experience and to provide the following:

• Provide subject matter expertise, oversight and reporting on all matters of security, and compliance, within scope of the engagement;
• Coordinating investigation, management, and responses to all security related incidents;
• GITSir Alerts
• GCSOC
• Operational oversight on all vulnerability assessments, audit log monitoring activities, baseline compliance and privilege user account administration;
• Yearly Security Awareness Training (Internal and Agency)
• Audit Service (validate RFI items and share with teams) update and promulgate account security policies, procedures, standards & guidelines and compliance to all FM and subcontractor personnel;
• Operational oversight of all FM and 3rd party leveraged security services;
• Periodic reporting to ITSM of current risk status gathered from numerous operational reports from the environments supported by NCS. Information security issues transcend the boundaries of discrete operational areas and requires that this information be presented within a number of broad best practice security categories: i.e. Threat, Vulnerability, Compliance and Incident Management.

These reports include:

• VMS (Nessus) reports
• Monthly security log review service
• Monthly security reporting Service
• Quarterly privilege access review service
• Monthly Imperva DAM
• Monthly Carbon Black
• Antivirus Report
• ACISO Scorecard (Patch Management, Asset Management)
• Account Review
• Asset inventory EOL, EOS and EOSL.
• ABLR Onboarding

The IT Security Officer shall also report to the MOH IFC Security team in managing BAU security functions and issues.

Job Summary:

We are seeking a skilled professional to fill the role of Network Security Specialist. The ideal candidate will possess excellent technical expertise and have strong communication skills.

Key Responsibilities:

• Ensure systems, servers, and infrastructure are installed according to design documents and client requirements
• Understand client needs and implement solutions accordingly
• Design network architecture and configure it as per requirements
• Configure, test, and hand over systems to clients, providing necessary training
• Maintain high system availability standards
• Liaise with various parties to resolve issues
• Attend new product trainings

Requirements:

• The selected candidate must be able to work overtime or night shifts
• Required skills include communication, analytical thinking, decision-making, organizational skills, attention to detail, patience, and knowledge of systems engineering software tools
• A minimum of 3 years of relevant hands-on experience is required
• Familiarity with security systems such as ISMS, CCTV, ACS, and VA systems is advantageous
• Familiarity with networking systems, including routing, VLAN, VPN, and wireless AP, is also advantageous
• Familiarity with IT security, including firewalls, IPSEC, SSL, and hardening, is advantageous
• The candidate should be able to work independently with minimal guidance and be a good team player
• A valid Class 3 driving license is an added advantage

About the Role

We are seeking a seasoned Network Security Specialist to deliver successful implementations, provide technical support, and ensure seamless client experience post-deployment. The ideal candidate must have 1-3 years of hands-on experience deploying Palo Alto Networks solutions and hold a valid PCNSA certification.

• Deploy, configure, and integrate Palo Alto Networks products in client environments.
• Provide post-sales technical support and troubleshooting.
• Collaborate with pre-sales and project teams to ensure smooth handover from design to implementation.
• Conduct client training, knowledge transfer, and documentation.
• Maintain up-to-date knowledge of Palo Alto features, updates, and best practices.

• 1-3 years of hands-on experience deploying Palo Alto solutions.
• Valid PCNSA certification (required).
• Knowledge of firewalls, VPNs, IDS/IPS, and network security principles.

• PCNSE or other advanced Palo Alto certifications.
• Exposure to other security vendors (Fortinet, Cisco, Check Point).

You'll act as a technical advisor and solution architect, supporting the sales team in presenting and positioning network security solutions to enterprise clients and channel partners. You will bridge customer needs and product capabilities, helping to drive adoption and business growth.

• Collaborate with sales teams to understand client requirements and propose appropriate network security solutions.
• Deliver technical product presentations, demos, and Proof-of-Concepts (PoCs).
• Design network and security architectures using firewalls, IPS/IDS, VPNs, SASE, and zero-trust models.
• Provide responses to RFIs, RFPs, and solution proposals.
• Engage with channel partners and resellers to provide product and technical enablement.
• Stay current on vendor products (e.g., Fortinet, Palo Alto, Cisco, Sophos, Check Point) and industry trends.
• Liaise with product managers and vendors to align solutions with roadmap and features.

• 2-5 years of experience in pre-sales, solution consulting, or systems engineering in network security or cybersecurity.
• Familiarity with firewalls, intrusion prevention, endpoint protection, VPN, SD-WAN, and cloud security tools.
• Strong presentation, documentation, and stakeholder management skills.
• Certification in network/security (e.g., NSE, CCNA Security, CISSP) is a plus.

We are looking for a highly skilled professional to join our team. If you have a passion for network security and enjoy working in a fast-paced environment, we encourage you to apply.

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Technical Recruiter (Singapore) - Hiring for multiple roles across Singapore
Position:
Network Security Specialist
Key Responsibilities and Attributes:
Providing support to client perimeter security infrastructure, which includes firewall, proxy, and remote access systems.
Investigation, documentation, and resolution of outages to critical business systems that may be caused by firewall, proxy, or remote access systems.
Escalation of issues to and tracking of progress in conjunction with Client engineering teams, vendors, or other technical resource teams.
Working incidents or projects beyond the scope of the level 2 team which may include scheduling multiple changes, software upgrades, or configuration activities to resolve.
Desired platforms/skills include:
Strong troubleshooting and communication skills.
tcpdump/pcap/wireshark experience.
Check Point Secure Platform Pro & Gaia, Juniper SRX, Bluecoat Proxy, Palo Alto Networks firewalls, Juniper SSL VPN appliances, Juniper Netscreen firewalls, Cisco ASA with AnyConnect client.
Network routing with BGP, Linux/Unix experience preferred.
Also desired/emphasized is a strong analytical and quantitative capability with attention to detail. Ability to work in a demanding environment, exhibiting a high degree of flexibility and ability to multi-task, seeking guidance where necessary, and strong verbal and written skills are also desired.
Special Skills:
Specialists are required to analyze customer requirements to ensure all standards, policies, and guidelines are upheld from the information security perspective and support routine compliance activities.
Eventually, specialists need to support technology improvements, such as new infrastructure install and hardware/software upgrades, and engineering support.
Years of Related Experience:
2-5 years
Seniority level
Mid-Senior level
Employment type
Full-time
Job function
Information Technology
Industries
Computer and Network Security and Technology, Information and Media
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Overview

DRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the world. We value autonomy and the ability to quickly pivot to capture opportunities, so we operate using our own capital and trading at our own risk.

Headquartered in Chicago with offices throughout the U.S., Canada, Europe, and Asia, we trade a variety of asset classes including Fixed Income, ETFs, Equities, FX, Commodities and Energy across all major global markets. We have also leveraged our expertise and technology to expand into three non-traditional strategies: real estate, venture capital and cryptoassets.

We operate with respect, curiosity and open minds. The people who thrive here share our belief that it’s not just what we do that matters–it's how we do it. DRW is a place of high expectations, integrity, innovation and a willingness to challenge consensus.

We are seeking a Network Security Engineer to join the network security team to ensure that our infrastructure and networks are properly protected. They will design, coordinate and implement security controls, audit configurations, and design networks in a hybrid compute environment. A successful candidate will have an attention to detail, the ability to understand what impacts their changes have on the network and relevant associated services.

• Collaborate with cross-functional security, technology, and trading teams to design and deploy innovative solutions that enhance both system integrity and trading performance.
• Actively contribute to the design, implementation, and maintenance of mission-critical trading infrastructure that drives resilient and scalable market operations.
• Implement robust strategies to reduce network risks by leveraging micro-segmentation, port-based security, and other innovative methods.
• Evaluate, diagnose, and implement effective network security solutions such as firewalls, network detect and response, intrusion prevention systems (IPS), and VPN concentrators to improve our network security and ensure reliable remote access.
• Leverage automation, AI, and other emerging and innovative technologies to continuously enhance our ability to detect and respond to security events.
• Perform in-depth analysis of network packet captures to investigate security incidents and identify areas for improvement.
• Continuously seek opportunities to automate tasks and streamline security operations for improved efficiency and effectiveness.

• You are passionate about solving complex problems that enable our company to securely connect from anywhere globally to facilitate new business opportunities.
• You are a network security engineer who thrives on designing, implementing, and supporting cutting-edge security systems that keep our network safe from emerging threats.
• You can get your hands dirty with hands-on experience in firewalls, client VPNs, SASE, NDR, and IDS solutions.
• You enjoy scripting and coding to automate processes and reduce repetitive work
• You have a solid understanding of TCP, UDP, IP, the OSI Model, and Layer 1-4 & 7 principles and security protocols.
• You are a dedicated professional who isn’t afraid of stepping up for on-call duties—even if it means working nights or weekends
• You are someone that continuously seeking innovative improvements to drive high-quality, state-of-the-art, and effective security solutions.
• You are an effective communicator, able to translate complex technical insights into clear, actionable strategies that resonate with cross-functional teams.

For more information about DRW's processing activities and our use of job applicants' data, please view our Privacy Notice at drw.com/privacy-notice.

California residents, please review the California Privacy Notice for information about certain legal rights at drw.com/california-privacy-notice.

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Key Responsibilities

• Security Implementation & Management:
  • Deploy and maintain F5 system with experience in LTM, WAF, API
  • Deploy and maintain Azure Cloud security with experience in APIM gateways
  • Implementation, and maintenance of network security solutions, with focus on Cisco FTD, FMC and Firewalls.
• Security Policy & Configuration:
  • Implement, and enforce granular security policies on F5, firewalls and APIM gateways
  • Perform regular security policy rule base reviews, cleanups, and optimization to ensure a strong security posture and network performance.
  • Integrate and configure F5 solutions to enforce application delivery and security policies, including rules.
• Documentation & Collaboration:
  • Documentation for diagrams, configurations, and standard operating procedures.
  • Collaborate closely with cross-functional teams to ensure security policies align with business objectives.

• Experience : Minimum of 3-5 years of hands-on experience in a network security or engineering role.
• Technical Skills :
  • Hands-on experience with F5 BIG-IP platforms, including LTM , WAF/ASM/API , and APM .
  • Proven experience with Azure cloud platforms security, including NSG and APIM
  • Implementation knowledge of firewall solution and management security, including FTD and FMC .
  • Strong understanding of network protocols (TCP/IP, DNS, HTTP/S) and security principles (firewalls, IDS/IPS, VPNs).
  • Familiarity with automation, cloud security is a plus.

• Microsoft Certified: Azure Security Engineer Associate
• Cisco Certified Network Professional (CCNP) Security
• F5 Certified Administrator or F5 Certified Technology Specialist (CTS).
• Other security certifications like CISSP or CompTIA Security+ are a plus.

Overview

SpeQtral is seeking a proactive and experienced Network Security Engineer with 2 to 5 years of experience to support SpeQtral’s Quantum Network programmes. The ideal candidate will be responsible for designing, implementing, and maintaining secure network infrastructures. You will also play a key role in protecting our organization’s digital assets by identifying vulnerabilities, mitigating threats, and ensuring compliance with industry standards.

The ideal candidate would additionally also oversee internal networking, IT, AV and management of cloud services within the organisation.

• Quantum Programme Support:
  • Understand customers’ technical requirements to provide technical support for fibre QKD network deployment between sites.
  • Assist with the installation and configuration of fibre QKD systems and support
  • Conduct preventive maintenance and checks to QKD systems
  • Investigate first line support calls assigned and identify the root cause of incidents and problems.
  • Troubleshoot and resolve hardware, software, network connectivity issues for projects that had been set up.
  • Liaise with customers and principal on escalated incidents
  • Ensure the efficient and comprehensive resolution of incidents and requests.
  • Provide training to end users on QKD network operations
• Network Security Design & Implementation:
  • Design, configure, and manage switches, firewalls, VPNs, IDS/IPS systems, and other security tools
  • Develop and enforce security policies and procedures to protect network integrity.
• Vulnerability Management:
  • Perform regular vulnerability assessments and penetration tests.
  • Be part of the cybersecurity team to remediate identified vulnerabilities and ensure secure configurations.
• Documentation:
  • Maintain up-to-date documentation of network configurations, policies, and security procedures.
• Support company infrastructure:
  • Managing company networking, IT and AV hardware
  • Performing admin roles for company cloud and SaaS subscriptions.

• Experience:
  • 2 to 5 years in network security, IT security, or a related field. Fresh graduates are encouraged to apply.
• Education:
  • Dip/Bachelor’s degree in Computer Science, Information Technology, Cybersecurity, or a related discipline (or equivalent work experience).
• Technical Skills:
  • Sound knowledge of network security technologies including switches, firewalls, VPNs, IDS/IPS, and SIEM solutions.
  • Proficiency in TCP/IP, DNS, DHCP, and other core networking protocols.
  • Programming using JavaScript and working with open source platforms such as Grafana
  • Working with cloud platforms, including AWS and Microsoft 365
  • (Good to have) Working and configuring soft hypervisors such as Proxmox
  • (Good to have) Experience with vulnerability assessment tools (e.g., Nessus, OpenVAS) and penetration testing methodologies.
  • (Good to have) Familiarity with security frameworks and compliance standards.
• Certifications:
  • Relevant certifications such as Cisco CCNA, CompTIA Security+ and/or CEH will be highly considered.
• Soft Skills:
  • Excellent analytical and problem-solving abilities.
  • Strong communication skills and the ability to work collaboratively in a team environment.
  • Proactive and responsive on assigned tasks and incidents follow-up
  • Team player and can work independently under minimum supervision

• Experience with scripting/programming languages (e.g., Python, Bash) for automating security tasks.
• Experience working with data visualization tools such as Grafana
• Knowledge of cloud security practices and tools if your organization leverages cloud infrastructures.
• Prior experience in a fast-paced environment where rapid response to security incidents is critical.
• Willing to be on scheduled standby for field service/maintenance support
• An interest in quantum communications and secure communication technologies.

SpeQtral is a global quantum technologies company on a mission to transform the world’s networks for the quantum revolution. Powered by technologies developed at the Centre for Quantum Technologies in Singapore, SpeQtral provides specialized solutions for quantum security to clients concerned about the security of their communications networks and infrastructure. SpeQtral’s core expertise lies in using a space-based quantum platform to establish long distance quantum networks with a global reach.

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