1,172 Network Administrators jobs in Singapore

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.

Submit your application to us under Join Us.

We regret that only shortlisted candidates will be notified.

We are looking for a technically strong and motivated Network Security Engineer to join our team in Singapore. This role involves deploying cybersecurity solutions, providing professional services, and supporting technical teams and customers. Candidates with solid technical foundations and a keen interest in cybersecurity are encouraged to apply. Entry-level applicants may be considered for the Associate Engineer position.

• Deploy and upgrade cybersecurity products, including implementation and configuration
• Provide professional services and manage customer expectations and timelines
• Offer practical solutions based on customer requirements
• Conduct product training for customers, partners, and internal teams
• Independently perform installations and configurations using product documentation
• Pursue technical certifications and continuous upskilling in relevant technologies
• Develop subject matter expertise and support knowledge transfer to maintenance teams
• Assist sales and support teams with technical matters such as product features, implementation planning, and tender compliance
• Maintain compliance with internal information security standards

• Nitec/Higher Nitec, Diploma, or Degree in IT, Information Systems, Cybersecurity, or related fields
• Minimum 2 years of experience in IT, IS, or Cybersecurity preferred (entry-level candidates may be considered for Associate Engineer role)
• Strong understanding of infrastructure technologies including Firewalls, VPN, DLP, IDS/IPS, DNS, Email Security, SIEM, Virtualization, Containers, and cloud platforms (AWS, Azure, Google Cloud)
• Familiarity with DevOps/DevSecOps, IAM, Endpoint Security, and tools like CyberArk Conjur
• Proficient in troubleshooting network/system issues (e.g., routing, NAT, VLAN, TCP/IP, OSPF, BGP, AD, LDAP, RADIUS, SNMP, Syslog, SMTP, TLS, SSH)
• Passionate about cybersecurity trends and threat intelligence
• Preferred certifications: Cisco CCNA/CCNP, Check Point CCSE/CCSM, CyberArk CDE, Thales, Trellix, ArcSight, SailPoint, CISSP, CREST, OSCP

• 13th month AWS
• Training provided (in-house and vendor-led); additional sponsored training available for confirmed staff based on performance
• Suitable for individuals aiming to grow into senior technical roles
• Entry-level applicants with strong technical foundations are encouraged to apply for the Associate Engineer track

This is in partnership with the Employment and Employability Institute Pte Ltd (“e2i”).

By applying for this role, you consent to Beecruit’s PDPA and e2i’s PDPA.

• Associate

• Full-time

• Information Technology

• IT Services and IT Consulting

This role is critical in ensuring infrastructure and networks are protected, resilient, and optimized for performance. Youll design and implement security controls, audit configurations, and shape networks across a hybrid compute environment.

Responsibilities:

• Partner with security, technology, and trading teams to design and deploy solutions that enhance both security and trading performance.

• Design, implement, and maintain mission-critical trading infrastructure for resiliency and scalability.

• Reduce network risks using microsegmentation, port-based security, and other methods.

• Deploy and manage security solutions (firewalls, NDR, IPS, VPNs, etc.) to safeguard systems and ensure reliable remote access.

• Use automation, AI, and emerging technologies to improve detection and response.

• Analyze network traffic and packet captures to investigate security incidents and identify improvements.

• Automate and streamline processes to increase efficiency and effectiveness.

What Were Looking For:

• Passion for solving complex network security challenges in a global environment.

• Hands-on expertise with firewalls, client VPNs, SASE, NDR, and IDS solutions.

• Strong understanding of TCP/UDP, IP, OSI model, and Layer 14 & 7 protocols.

• Proficiency in scripting/coding to automate processes.

• Willingness to take on on-call responsibilities, including nights/weekends.

• A mindset for innovation, continuous improvement, and delivering state-of-the-art security solutions.

• Strong communication skills to translate technical insights into clear strategies.

Job Scope

• 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.
• Utilise 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. It includes obtaining of firmware, schedule and coordinate firmware patching with testers.

• Minimally 10 years of experience in IT Network
• CCNP Certificate
• Must be expertise in Cisco products, routers, switches
• Must be expertise in network equipment from vendors like Palo Alto, Check Point, Trend Micro, Fortinet and F5.
• Must have working knowledge in networking protocols and technologies like TCP/IP, VLANs, VPNs, and routing/switching.
• Must have application security experience like interpretation of HTTP response status codes and WAF violations.

Interested candidate please click "APPLY" to begin your job search journey.

We regret to inform that only shortlisted candidates will be notified.

EVO Outsourcing Solutions Pte. Ltd.
• RCB No. K

AMNET Technology Pte Ltd is seeking a skilled and detail-oriented Network Security Engineer to design, implement, maintain, and support our growing network infrastructure. You will be part of a dynamic team responsible for maintaining high availability, performance, and security of the network systems that support critical business operations.

• Design, configure, and deploy LANs, WANs, wireless networks, and other network components.
• Install and maintain network hardware and software, including routers, switches, firewalls, and load balancers.
• Monitor network performance, troubleshoot issues, and ensure network availability and reliability.
• Implement and enforce network security policies, including firewalls, VPNs, and access controls.
• Perform network maintenance and system upgrades including service packs, patches, hot fixes, and security configurations.
• Collaborate with internal teams and vendors to diagnose and resolve network-related issues.
• Document network infrastructure, configurations, and procedures.
• Participate in disaster recovery planning and implementation.
• Provide support for network-related incidents and service requests.
• Stay current with emerging networking technologies and trends.

• Bachelor’s degree in Computer Science, Information Technology, or related field (or equivalent work experience).
• Proven experience as a Network Engineer or in a similar role.
• Strong understanding of networking concepts such as TCP/IP, DNS, DHCP, routing, and switching.
• Hands‑on experience with network hardware (e.g., Cisco, Juniper, Arista).
• Experience with network security tools and best practices.
• Familiarity with cloud networking (e.g., AWS, Azure, GCP) is a plus. Knowledge of firewalls, VPNs, and IDS/IPS systems is a plus.
• Network certifications such as CCNA, CCNP, CompTIA Network+, or JNCIA are preferred.

• Experience with monitoring tools (e.g., SolarWinds, PRTG, Nagios).
• Understanding of SD‑WAN, MPLS, and BGP/OSPF routing protocols.
• Knowledge of virtualization technologies and cloud‑based networking.

• Strong problem‑solving and analytical skills.
• Excellent communication and teamwork abilities.
• Ability to work independently and under pressure.

• Office environment and able to work at customer’s site based on projects assignment.
• Work‑life balance.
• Ongoing Training and Development Programs for Career Advancement.
• Free access to office building facilities i.e. swimming pool, gym rooms, tennis court and BBQ pit.

- Singaporean is preferred

Attractive salary remuneration package with monthly mobile reimbursement claim max up to $80 and standby support allowance.

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Key Responsibilities Security Implementation & Management

• Deploy, configure, and maintain F5 systems including LTM , WAF , and API modules.
• Implement and manage Azure Cloud security controls, including APIM gateways and Network Security Groups (NSGs) .
• Maintain and administer firewall and intrusion prevention systems (e.g., Cisco FTD/FMC or equivalent).
• Monitor and troubleshoot network and security performance issues to ensure continuous protection and availability.

• Implement and enforce granular security policies across F5, firewalls, and Azure environments.
• Conduct regular rule base reviews , policy cleanups, and performance optimizations.
• Ensure consistent policy integration and configuration alignment across application delivery and network security platforms.

• Maintain accurate network diagrams, configurations, and standard operating procedures (SOPs) .
• Work closely with cloud, network, and application teams to align security policies with business and compliance requirements.
• Support security audits, incident investigations, and continuous improvement initiatives.

• 2–5 years of experience in network security or network engineering roles.
• Proven track record in deploying and maintaining F5 , Azure security , and firewall solutions.

• Hands-on experience with F5 BIG-IP platforms (LTM , WAF/ASM , API ).
• Strong knowledge of Azure Cloud security , including NSG and APIM .
• Experience with firewall platforms (e.g., Cisco FTD/FMC , Palo Alto, or similar).
• Understanding of network protocols (TCP/IP, DNS, HTTP/S).
• Familiarity with security concepts such as firewalls, IDS/IPS, VPNs , and zero-trust principles .
• Basic knowledge of automation or cloud-native security tools is an advantage.

• Microsoft Certified: Azure Security Engineer Associate
• Cisco Certified Network Professional (CCNP Security)
• F5 Certified Administrator or F5 Certified Technology Specialist (CTS)
• Other relevant certifications such as CISSP or CompTIA Security+

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. The role involves designing, coordinating, and implementing security controls, auditing configurations, and designing networks in a hybrid compute environment. A successful candidate will have an attention to detail and the ability to understand the impact of their changes on the network and associated services.

1. Collaborate with cross-functional security, technology, and trading teams to design and deploy innovative solutions that enhance system integrity and trading performance.
2. Contribute to the design, implementation, and maintenance of mission-critical trading infrastructure to ensure resilient and scalable market operations.
3. Implement strategies to reduce network risks using micro-segmentation, port-based security, and other innovative methods.
4. Evaluate, diagnose, and implement network security solutions such as firewalls, network detection and response, intrusion prevention systems (IPS), and VPN concentrators to improve security and enable reliable remote access.
5. Leverage automation, AI, and other emerging technologies to enhance detection and response to security events.
6. Analyze network packet captures to investigate security incidents and identify areas for improvement.
7. Seek opportunities to automate tasks and streamline security operations for efficiency and effectiveness.

• Passion for solving complex problems that enable secure global connectivity for new business opportunities.
• Experience designing, implementing, and supporting advanced security systems that protect networks from emerging threats.
• Hands-on experience with firewalls, client VPNs, SASE, NDR, and IDS solutions.
• Proficiency in scripting and coding to automate processes and reduce repetitive work.
• Solid understanding of TCP, UDP, IP, the OSI model, and security protocols across layers 1-4 and 7.
• Willingness to work on-call, including nights and weekends if necessary.
• Continuous drive to innovate and improve security solutions.
• Effective communication skills to translate complex technical concepts into clear strategies for 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 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.

What you’ll be doing:

• 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.

What we’re looking for:

• 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 who continuously seeks 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 .

Direct message the job poster from Beecruit Pte Ltd

Are you passionate about cybersecurity and eager to work hands-on with cutting-edge technologies?

We’re looking for a driven Cybersecurity Engineer to deliver professional services, implement solutions, and support enterprise customers across a wide range of security products.

• Deploy and support cybersecurity solutions, including implementation, upgrades, and configuration of enterprise security products.
• Provide professional services by managing customer projects, timelines, and deliverables effectively.
• Offer practical and effective solutions that align with customer requirements.
• Conduct product training for customers, partners, and internal teams.
• Continuously upskill and obtain relevant technical certifications.
• Share expertise and assist in building capabilities within support and maintenance teams.
• Support sales and presales efforts with technical input, product clarification, and implementation insights.

• Positive, professional, and proactive attitude.
• Strong team player who can also work independently.
• Able to thrive under pressure and meet tight deadlines.
• Qualifications: Nitec / Higher Nitec / Diploma / Degree in IT, IS, or Cybersecurity.
• Experience: Minimum 2 years in IT or cybersecurity. (Fresh graduates may be considered for an Associate Engineer role.)
• Technical knowledge in:
• Keen interest in emerging cybersecurity threats and trends.

You’ll gain hands-on experience with leading cybersecurity technologies, work alongside industry professionals, and continuously develop through certifications and real-world projects.

If you’re ready to take the next step in your cybersecurity career, we’d love to connect.

This is in partnership with the Employment and Employability Institute Pte Ltd (”e2i”).

e2i is the empowering network for workers and employers seeking employment and employability solutions. e2i serves as a bridge between workers and employers, connecting with workers to offer job security through job-matching, career guidance and skills upgrading services, and partnering employers to address their manpower needs through recruitment, training, and job redesign solutions. e2i is a tripartite initiative of the National Trades Union Congress set up to support nation-wide manpower and skills upgrading initiatives.

By applying for this role, you consent to Beecruit’s PDPA and e2i’s PDPA.

• Seniority level : Associate
• Employment type : Full-time
• Job function : Information Technology
• Industries : Computer and Network Security

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