24 Network Architect jobs in Singapore

Info-communications Media Development Authority

Fixed Terms

Closing on 29 Sep 2026

What the role is

As part of a team operating and maintaining a test facility for 5G testing and experimentation, the responsibilities of this role include the following:

What you will be working on

• Configuring, operating and maintaining a telco-grade 5G Core platform and supporting infrastructure in a laboratory environment;
• Performing detailed technical assessment, troubleshooting and analysis of 5G Core-related technologies/operation;
• Assisting users of the system to familiarize with the experimental platform, 5G Core architecture and functionality;
• Conducting training for internal audiences on 5G-related technologies using in-house testbeds as instructional platforms;
• Presenting on 5G-related technical topics to internal audiences.

What we are looking for

• Background in 5GC architecture and Core network functions with good understanding of 5G network architecture, protocols, and standards (e.g., 3GPP).
• Possess at least 5 years of HANDS-ON experience in operation and/or implementation of 4G/5G Core networks. Experience with Nokia/Ericsson 5GC preferred.
• Familiarity with IP networking/connectivity and routing/switching protocols/techniques (IPV4/IPV6, BGP, IGP, OSPF, MPLS, etc.) would be advantageous.
• Strong communication and collaboration skills, an ability to be PROACTIVE and LEAD in a multi-stakeholder environment, and FLEXIBILITY to take on tasks outside of normal job routine are prerequisites.

About Info-communications Media Development Authority

Info-communications Media Development Authority ) offers a rewarding career that gives you a front seat in the fast-changing infocomm media sector, where technology and content are shaping the way people view the world more than ever.
We offer a wide range of opportunities, where talented individuals and teams can make a difference. Whether you are developing a telecommunications policy affecting consumers or spearheading a scheme to nurture budding media talents, each member of IMDA contributes towards driving innovation, enhancing productivity for economic growth, and improving the quality of life for all Singaporeans.
As a statutory board in the Ministry of Communications and Information, IMDA promotes and regulates the infocomm and media sectors.

About your application process

This job is closing on 29 Sep 2026.

If you do not hear from us within 4 weeks of the job ad closing date, we seek your understanding that it is likely that we are not moving forward with your application for this role. We thank you for your interest and would like to assure you that this does not affect your other job applications with the Public Service. We encourage you to explore and for other roles within Info-communications Media Development Authority or the wider Public Service.

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.

Qualifications

• 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.

Certifications (Preferred)

• 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.

We're hiring a Technical Presales Consultant / Network Security Engineer for a top-tier global cybersecurity company. In this role, you'll act as a key technical advisor during the sales process, supporting customers and internal teams with in-depth knowledge of network security solutions—including Juniper technologies. You'll lead technical discussions, run Proof-of-Concepts, and play an integral role in shaping secure, scalable network solutions.

Job Location: Singapore

POSITION DESCRIPTION

The Technical Presales Consultant is responsible for:

• Work closely with the sales and product teams

• Conduct Proof-Of-Concept (POC) and prepare technical proposals

• Conduct solution presentation and workshops

• Provide pre and post-sales support

• Propose and explore new and upcoming technologies in the market

• Perform any other duties as assigned

POSITION REQUIREMENTS

Skills and Experience:

• Diploma or degree in Information Technology, Computer Science, or a related field

• Minimum of 5 years of experience in the IT security sector, with a strong technical background in network engineering and firewall implementation/management
• Proficiency in Juniper security technologies (e.g., SRX firewalls, JunOS, Juniper Security Director ), including configuration, troubleshooting, and optimization
• Familiarity with other security technologies, including firewalls, IDS/IPS
• Solid understanding of networking protocols (TCP/IP, DNS, DHCP) and core principles of network security
• Experience with network monitoring and analysis tools
• Strong knowledge of Security Design Architecture, OSI model, TCP/IP model, and related protocols
• Relevant certifications (e.g., JNCIS-SEC , CCNP Security, CISSP, CISM) are advantageous
• Excellent problem-solving skills and keen attention to detail
• Strong communication skills and a collaborative team-oriented mindset

If this opportunity aligns with your skills and career goals, we encourage you to apply.

EA License: 21C0783

EAP Registration No: R

Implementing removable media controls, particularly for third-party suppliers.

Responsibilities

• Support the DT Leader in delivering IT/OT security high-priority projects

• Coordinate with facility & maintenance, EHS, quality, and operations teams on Secure Shop Connection projects

• Conduct OT/IT asset discovery, record management, and ongoing maintenance

• Liaise with third-party suppliers for asset inventory data

• Build and maintain documentation to demonstrate compliance with IT/OT controls

• Identify, document, and manage IDF/MDF infrastructure at sites

• Oversee hardware procurement processes

• Support shop floor asset connectivity to the network

• Perform malware scanning as per SOP/policies and work with GE Cybersecurity to remediate infections on OT devices

• Install and manage Nozomi network taps

• Configure and deploy IT/OT network infrastructure (e.g., switch installations) in alignment with GE-approved design standards

• Develop recovery and backup solutions with suppliers of critical OT

• Schedule and execute annual OT/IT device scanning

Skills/Requirement

• Bachelor's or Master's degree in a relevant field like Cybersecurity, Engineering, or Computer Science.

• Strong understanding of IT security concepts (firewalls, intrusion detection, authentication) and OT systems (PLCs, SCADA, industrial protocols).

• Converging IT/OT environments, where innovations like IoT bring new vulnerabilities to industrial sectors.

• Experience with vulnerability scanning tools (e.g., Nessus) and other assessment platforms

• Develops defenses against sophisticated cyberattacks that target both traditional IT and industrial control systems.

We regret to inform you that only shortlisted candidates will be contacted.

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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.

Job Requirement

• 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.

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

EVO Outsourcing Solutions Pte. Ltd.

• RCB No K

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.

Security Policy & Configuration

• 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.

Documentation & Collaboration

• 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.

QualificationsExperience

• 3–5 years of experience in network security or network engineering roles.
• Proven track record in deploying and maintaining F5, Azure security, and firewall solutions.

Technical Skills

• 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.

Preferred Certifications

• 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+

Job Types: Full-time, Contract

Contract length: 12 months

Pay: Up to $8,000.00 per month

Location:

• Singapore (Required)

Job Summary:

The Network Security Engineer is responsible for ensuring high availability, performance, and security of network infrastructure while supporting continuous service delivery to customers. This role involves proactive monitoring, network lifecycle management, incident resolution, and strategic planning to enhance operational efficiency and customer satisfaction.

Key Responsibilities:

• Monitor and maintain core network infrastructure (routers, switches, transmission systems) to ensure optimal performance and uptime.
• Manage network lifecycle activities, including capacity planning, preventive maintenance, migration, and decommissioning.
• Perform risk assessment, POC testing, and strategy planning for network enhancements.
• Handle incident and outage reports, ensuring timely submission of RFOs and monthly reports.
• Support NOC and internal engineering teams to meet SLAs and service delivery targets.
• Maintain accurate documentation and ensure ITSM process compliance.
• Collaborate with Product and Sales teams on new network planning initiatives.

Requirements:

• Bachelor's Degree in Computer Science, Information Systems, or equivalent.
• Minimum 5 years of relevant experience in network operations or engineering.
• Strong analytical, troubleshooting, and communication skills.
• Experience in ISP or large-scale enterprise network environments is an advantage.
• Cisco Certified Network Associate (CCNA) preferred.
• Able to work off-hours when necessary.

NCS is a leading technology services firm that operates across the Asia Pacific region in over 20 cities, providing consulting, digital services, technology solutions, and more. We believe in harnessing the power of technology to achieve extraordinary things, creating lasting value and impact for our communities, partners, and people. Our diverse workforce of 13,000 has delivered large-scale, mission-critical, and multi-platform projects for governments and enterprises in Singapore and the APAC region.

In this role, you'll play a crucial part in responsible for ensuring the integrity and efficiency of the organization's firewall infrastructure, leveraging tools like AlgoSec for policy management and integrating them with automation tools such as Ansible and Terraform.

What will you do?

• Implement and manage AlgoSec firewall management solution to streamline policy management and enhance overall security posture
• Design, deploy, and support Check Point, Fortinet, Palo Alto and Sophos firewall infrastructures in large enterprise environments
• Develop and enforce security standards for network and perimeter security platforms
• Conduct vulnerability assessments and penetration tests on systems and networks
• Troubleshoot complex security issues and analyze security anomalies
• Configure firewalls, switches, and other network security devices
• Manage firewall policies, rules, and objects to ensure optimal performance and security
• Perform firewall upgrades, migrations, and implement high availability configurations
• Collaborate with cross-functional teams to implement appropriate network monitoring and security measures
• Utilize automation tools such as Ansible and Terraform to configure and manage network security equipment

The ideal candidate should possess:

• Bachelor's degree or diploma in Computer Science, Information Technology, Cybersecurity, or a related field.
• 3-5 years of experience in Palo Alto Networks firewalls and Panorama, Checkpoint Firewall, Fortinet, Network Detection and Response, Cloud Computing
• Sound fundamental knowledge on IP networking (e.g. TCP/IP, routing, etc.) and Firewalls (e.g. Checkpoint, Fortigate)
• Strong analytical and problem-solving skills.
• Excellent communication and teamwork abilities.
• Due to government project sensitivity, we will only consider Singapore Citizen

We are driven by our AEIOU beliefs—Adventure, Excellence, Integrity, Ownership, and Unity—and we seek individuals who embody these values in both their professional and personal lives. We are committed to our Impact: Valuing our clients, Growing our people, and Creating our future.

Together, we make the extraordinary happen .

Learn more about us at ncs.co and visit our LinkedIn career site.

Job Summary:

We are seeking a highly skilled Network & Cybersecurity Engineer with experience in securing enterprise and government infrastructures, including IM8-aligned environments. The ideal candidate will have hands-on expertise in managing firewalls, performing vulnerability assessments, and implementing secure hybrid (on-prem/cloud) network solutions. Strong knowledge of incident response, system hardening, risk management, and audit support is essential.

Responsibilities:

Deploy, configure, and manage enterprise-grade firewalls including Palo Alto, FortiGate, and SonicWall across hybrid infrastructures.

Design secure routing and switching architectures using protocols such as OSPF, BGP, and VLAN segmentation.

Perform IOC scanning, VAPT, and root cause analysis for cybersecurity incidents.

Administer compliance and system hardening following IM8 and CIS Benchmarks on both Windows Server and Linux systems.

Implement secure remote access solutions (SSL/IPSec VPNs) and manage authentication through AD, RADIUS, and TACACS+.

Monitor and analyze logs using SIEM platforms (e.g., FortiSIEM, AWS CloudWatch) and implement threat detection workflows.

Coordinate with internal stakeholders, clients, and 3rd-party vendors to support project delivery, audit readiness, and risk governance.

Support infrastructure and compliance audits with Singapore Government, KPMG, and PwC.

Lead cybersecurity initiatives for LTA projects such as Passenger Information Display System (PIDS) and Parking Guidance System (PGS).

Maintain asset inventories, monitor EOL/EOS devices, and enforce baseline standards for firmware and software.

Requirements

Minimum 5 years of experience in enterprise network security engineering

Palo Alto Certified (PCNSE) with strong working knowledge of FortiGate and Cisco security solutions.

Experience with IM8/CIS compliance, VAPT, IOC scanning, and forensic investigations

Proficiency in routing/switching protocols (OSPF, BGP, EIGRP, MPLS)

Experience with identity and access control systems, including 802.1X and LDAP integrations

Hands-on experience with SIEM tools, NAC solutions, and monitoring frameworks

Familiarity with AWS cloud environments (VPC, IAM, hybrid network security) and AWS Certified mandatory.

Proven experience in managing government or high-security infrastructure projects

Preferred CCNA and CCNP Certified

Must be willing to work in rotational shifts and provide weekend support as needed.