826 Switching jobs in Singapore

Responsibilities:

• Design, implement, test, secure, and maintain network infrastructure.
• Collaborate with Team Lead to meet project delivery milestones.
• Prepare and hand over technical documentation to project and maintenance teams.
• Troubleshoot technical issues with vendors and back-line support.
• Support day-to-day operations of the System Delivery team.

Requirements:

• Degree/Diploma in Computer Science, IT, or Engineering with CCNA/CCNP/CCIE certification.
• 3–5 years’ experience configuring/administering routers, switches (Cisco), firewalls (CheckPoint, Forcepoint), F5 Load Balancers, AAA, NTP, IPS.
• Strong understanding of network systems, architecture, routing, switching, and security.
• Skilled in network analysis and troubleshooting using protocol analyzers.
• Good interpersonal and communication skills.

Nice to Have:

• Experience leading a team (for Senior/Lead role).
• Willingness to provide 24/7 standby support or work on shift schedules.

Virtu is a leading financial firm that leverages cutting edge technology to deliver liquidity to the global markets and innovative, transparent trading solutions to our clients. As a market maker, Virtu provides deep liquidity that helps to create more efficient markets around the world. Our market structure expertise, broad diversification, and execution technology enables us to provide competitive bids and offers in over 19,000 securities, at over 235 venues, in 36 countries worldwide.

THE ROLE

Virtu is looking for a visionary Senior Network Engineer to join our global network engineering team. In this role, you'll help to define and lead our world leading network platform to grow alongside our ever expanding trading business. You will be working at the forefront of the world’s financial markets, building connectivity across the globe, and integrating some of the most complex networks in the financial services industry.

Additional duties include:

1. Design, implement and operate Virtu's network. Whether it is investigating a new, innovative products, refreshing one of our low latency trading systems or troubleshooting with a 3rd party, you'll thrive on being impactful within a fast-moving, varied environment.
2. Transforming our way of working at scale. We know the network industry is changing, and this is your chance to make that change, collaborating with software engineers with proven track records of solving complex problems through software.

THE CANDIDATE

• Required skills:
• 5+ years of experience in network engineering
• Some Real-world network automation experience
  • Configuration Management – one of Ansible/Salt/Puppet/Chef
  • Python (or other programming languages)
• Expert in routing and switching – BGP/OSPF/Multicast
• Deep understanding of TCP/IP and the OSI model
• Good prioritization skills and the ability to effectively switch tasks on varying projects and initiatives
• Excellent communication and writing skills
• Humility
• A love of technology in general
• Highly desired skills:
• Comfortable working with various Linux utilities and different OS
• SQL
• A bachelor’s degree, preferably in IT, Computer Science or other related discipline

PERKS OF THE ROLE:

• Projects with quick life cycles, from concept to production in three months
• The opportunity to make an impact in a highly visible role within the firm
• A great place for upward and geographic mobility
• Direct exposure to the decision makers and senior leaders on the business side
• A company that’s investing a sizable amount in its technology department
• Teams that are passionate about continually learning, improving and raising the bar
• A community that values hard work as well as work-life balance

After passing an initial resume screening, candidates will be sent an online network engineering test. We look forward to meeting you.

Virtu Financial is an equal opportunity employer, committed to a diverse and inclusive workplace, welcoming you for who you are and does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

Responsibilities

• Develop automation and processes to enable teams to deploy, manage scale and monitor their applications in data centers and in cloud.
• System troubleshooting and problem solving across platform and application domains, expect to participate in on-call escalations to troubleshoot customer facing issues.
• Take ownership of end-to-end solutions provided by teams across the organisation.
• Deploy and manage monitoring tools of infrastructure performance, utilization and health to ensure system availability and reliability.
• Implement configuration management system for business continuity management and automate disaster recovery measures.
• Implement security practices that comply with standards to protect the organisation’s data and infrastructure.
• Experience Required : 4-8 years
• Location: Singapore
• Excellent knowledge on the fundamentals such as IPv4/IPv6 addressing, VLAN, switching and routing configurations, Application performance management using Load balancers, Server Operating Systems (such as Windows and Linux) networking and OSI layer Protocols.
• Experience in designing, implementing, operating and troubleshooting networking devices and technologies (Structured Cabling, WAN, LAN, Network Security, Wireless and Voice) in standardised operating environment.
• Experience in one or more provisioning tools for network infrastructure such as Ansible, Vagrant, Docker, Puppet to manage configurations using automation.
• Skills essential for the role would be Firewall/IDS/IPS rules optimisation, load balancing of applications, network devices configuration & hardening, NAT, DNS, DHCP and Wireless network health management.
• Understanding of security concepts such as Network Access Control (NAC), Public Key Infrastructure (PKI), Cybersecurity threats and mitigations, Content Distribution Network (CDN).
• Understanding of networking technologies such as Software Defined Infrastructure (SD-WAN, Open Vswitch, VXLan, OpenFlow, OpenStack and CloudStack), Network Functions Virtualization (operate network functions in virtual machines), Secure Access Service Edge ( Zero Trust Network Access, Cloud Access Security Broker

Key Responsibilities

• Design, deploy, and maintain complex network infrastructures including routing, switching, firewall, and load balancing solutions.
• Implement and support network and security appliances such as firewalls, IPS/IDS, VPNs, SD-WAN, and wireless controllers.
• Provide Level 2/3 technical support to clients via remote troubleshooting and onsite interventions.
• Perform network performance tuning, capacity planning, and proactive maintenance to ensure optimal system uptime.
• Collaborate with vendors and partners to resolve incidents and escalate technical issues as required.
• Create and maintain up-to-date technical documentation, including network diagrams, configuration standards, and operational procedures.
• Assist in project planning, proposal drafting, and pre-sales technical consultations when necessary.
• Conduct network assessments, audits, and vulnerability reviews to identify gaps and implement security best practices.
• Any other ad-hoc duties as assigned by supervisor.

• Proven experience working in a system integrator environment, handling multiple clients and diverse infrastructure setups.
• Proficient in configuring and managing network devices via Command Line Interface (CLI), with strong troubleshooting skills.
• In-depth understanding of network protocols and architectures (e.g., TCP/IP, VLANs, BGP, OSPF, VRRP, HA clusters).
• Strong experience with enterprise-class networking and security platforms (e.g., Cisco, Juniper, Fortinet, Palo Alto).
• Experience in configuring and hardening network infrastructure; familiarity with patching, compliance standards, and change control procedures.

Interested applicants, please email your resume to Andre Chua Jing Ming

Email:

CEI Reg No: R

EA Licence No: 99C4599

Recruit Express Pte Ltd

Qualifications

• Knowledge on Internet Technologies (i.e. routing, switching and general network infrastructure),
• Experience in network operations/maintenance and passionate about providing troubleshooting support
• Strong analytical and problem-solving skills, and has a flair for dealing with technical and operational problems
• Experience in IT audit or CISA/CISM certified preferred or operational risk management and control self-assessment or prior experience in implementing security solution and information security governance
• Enterprise Data Network (administration, patching, upgrade and migration activities), Design, Preparing of HLD/LLD, Implementation Team leading, Service Level management, demand, incident, change management.
• Cisco/Aruba Switching /Routing & WLAN
• DDI, AAA/Cisco ISE
• As Built, LLD, Testing & Acceptance Testing Documentation Skills
• ZScaler & Network Security
• Provide network WAN/LAN design, implementation, consulting, Cisco, Aruba, Juniper
• Network audit Identify the gaps and suggest the remedial solution. Supporting in RFP/RFI response.
• Experience in running operations with ITIL processes / Project Management - PMP

About The Company

We have partnered with one of the leading retail groups in Singapore with a strong presence across multiple store formats islandwide. With a portfolio of well-established brands, the business continues to grow and adapt, serving diverse customer segments though its network of over 50 outlets.

The successful candidate will be responsible in collaborating across network and orchestration teams to ensure the smooth delivery of end-to-end network slicing and automation solutions. This roles requires good expertise in networking technologies, including routing, switching, firewalls and VPN configurations.

This role is based in Tampines .

• Ensure network performance on availability, stability is aligned with SLAs and KPIs.
• Work with IT teams to ensure network scalability, compliance and performance.
• Maintain and troubleshoot firewalls, VPN concentrators and security appliances.
• Manage network security configurations, including VPN tunnels, firewalls, and IPS rules.
• Collaborate with cybersecurity team to enforce security best practices.
• Validate the Software Defined Network (SDN) infrastructure within the IT ecosystem.
• Maintain network documentation, including topology diagrams, security protocols and operational procedures.
• Support network migration, infrastructure upgrades and cloud networking on GCP.
• Create reports and documentation outlining findings and solutions.
• Review compliance with information security policies and standards.
• Ensure disaster recovery plan testing activities are performed and technical criteria are met.
• Identify and mitigate network vulnerabilities and are familiar with common security threats like malware and phishing.

• 3–5 years of hands-on experience in network engineering, preferably in roles involving Cisco technologies, IT infrastructure, or network administration.
• Proven track record in deploying and managing wireless network solutions.
• Practical expertise with Fortinet and/or Palo Alto firewall systems.
• Relevant certifications such as CCNA or CompTIA Network+.
• Additional cybersecurity credentials like CompTIA Security+ or ISC2 Certified in Cybersecurity are a plus.
• Working knowledge of the ITIL framework and its application in IT service management.
• Advanced troubleshooting skills using tools like Wireshark, packet capture analysis, and command-line utilities.
• Good analytical mindset with the ability to resolve complex network incidents under pressure.
• Solid understanding of LAN/WAN architectures, VPN configurations, and network security best practices.
• Experience with cloud networking, particularly within Google Cloud Platform (GCP) environments.
• Excellent interpersonal and communication skills to collaborate effectively across cross-functional teams.
• Familiarity with Zero Trust architecture and its implementation principles.
• Basic understanding of containerization technologies such as Docker and Kubernetes.

Overview

Ahrefs is seeking an experienced Network Engineer to join our team and help manage our large-scale distributed infrastructure. In this role, you will be responsible for the design, implementation, and maintenance of our network infrastructure, ensuring high availability, performance, observability, and security. Our system includes custom OCaml code and third-party technologies such as Debian, ELK, Puppet, Ansible, and other tools as needed. The role involves working with a 100+ petabytes storage cluster, 3,000+ bare-metal servers, and large-scale deployments, along with daily software and hardware challenges.

We do not engage with agencies or third-party recruitment solutions for the roles we hire for. If at any point we need help, we’ll let you know.

• Design, implement, document, and maintain a robust and scalable network infrastructure to support Ahrefs' distributed crawler and web services
• Configure and manage network devices such as routers, switches, load balancers, and Linux servers
• Improve and monitor network observability and performance, troubleshoot issues related to network connectivity, latency, and throughput for network devices and servers
• Implement network security measures, including firewalls, VPNs, and access control lists
• Collaborate closely with the infrastructure team to ensure seamless integration between network and server infrastructure
• Participate in the on-call rotation to provide 24/7 support and incident response
• Automate network management tasks and develop scripts to improve efficiency

• Deep understanding of network protocols on different levels (TCP/IP, BGP, OSPF, etc.) and network architectures
• Extensive experience with network devices and network operating systems from major vendors (e.g., Cisco, Juniper, NVIDIA)
• Strong knowledge of network security principles and best practices
• Proficiency in network automation tools (e.g., Ansible, Puppet, Python, Bash scripting)
• Experience with virtualization technologies (e.g., VLANs, VXLANs, GRE tunnels)
• Familiarity with cloud networking concepts and services (e.g., AWS VPC, Azure Virtual Network)
• Strong troubleshooting and problem-solving skills
• Excellent communication and documentation skills
• Bachelor's degree in Computer Science, Information Technology, or a related field

• Experience working with bare-metal servers and large-scale distributed systems
• Knowledge of Linux operating system internals and kernel-level networking
• Familiarity with monitoring and logging tools (e.g., ELK stack, Prometheus, Grafana)
• Experience with OCaml or other functional programming languages is a bonus

Ahrefs runs an internet-scale bot that crawls the whole web 24/7, storing huge volumes of information to be indexed and structured in a timely fashion. Our backend system is powered by a custom petabyte-scale distributed key-value storage to accommodate all that data coming in at high speed. With this data, Ahrefs builds analytics services for end-users in the SEO space and a web-scale search platform.

We are a lean and robust team who strongly believe that better technology leads to better solutions for real-world problems. Our motto is "first do it, then do it right, then do it better".

Summary:

We are seeking a Network Engineer to design, implement, and support network and infrastructure solutions for large-scale transportation systems. The role involves producing detailed network designs, coordinating with internal teams, customers, and vendors, and overseeing implementation, testing, and commissioning activities. The ideal candidate will bring strong technical expertise in IP/MPLS, SDH, 4G/5G, and cybersecurity, with experience in mission-critical infrastructure projects.

Requirements:

• Produce detailed design, specifications, and costing for network and infrastructure solutions.
• Interface with customers, internal engineering teams, and vendors for design and product definition.
• Evaluate and recommend suitable network products and systems.
• Lead testing and commissioning activities, ensuring compliance with project requirements.
• Track progress of design and interface tasks, ensuring timely delivery of documentation and deliverables.
• Perform network troubleshooting, issue analysis, and capacity optimization.
• Implement cybersecurity measures including system hardening, firewalls, and antivirus solutions.
• Develop automation scripts for configuration and deployment.
• Support structured cabling, fibre/copper design, and wireless (4G/5G/Wi-Fi) networks.
• Ensure efficient execution of assigned tasks with minimal supervision.

Qualifications:

• Degree in Electrical, Electronic, or Telecommunications Engineering.
• Professional certifications preferred: CCNA, CCNP, CCDA, HCIA, HCIP, JNCIE, or equivalent vendor certifications.
• Strong knowledge of SDH, SR-MPLS, MPLS-TP, IP/MPLS, Ethernet, and cable network design
• Experience with virtualization platforms (VMware, Windows, Linux).
• Skilled in network administration, troubleshooting (Wireshark), and security design.
• Strong problem-solving skills, analytical thinking, and the ability to work independently or collaboratively.

About the role

As a Network Engineer at VSTECS (SINGAPORE) PTE. LTD.', you will play a crucial role in designing, implementing, and maintaining secure and efficient network infrastructure. This full-time position is based in the Lavender Central Region and offers the opportunity to work on cutting-edge technology and contribute to the company's growth.

What you'll be doing

1. Design, configure, and optimize network systems, including routers, switches, firewalls, and wireless access points
2. Ensure network performance, reliability, and security by monitoring, troubleshooting, and resolving any issues that arise
3. Collaborate with cross-functional teams to implement network solutions that support the company's business objectives
4. Stay up-to-date with the latest networking technologies and trends, and recommend improvements to the network infrastructure
5. Provide technical support and training to end-users on network-related matters
6. Develop and maintain comprehensive documentation for the network infrastructure

What we're looking for

1. Minimum 3-5 years of experience in a network engineering or administration role
2. Strong knowledge of network protocols, routing, switching, and security concepts
3. Proficiency in configuring and troubleshooting network equipment from major vendors (e.g., Cisco, Juniper, Aruba)
4. Hands-on experience with network monitoring and management tools
5. Experience in implementing and supporting cloud-based network solutions
6. Excellent problem-solving and analytical skills
7. Strong communication and collaboration skills to work effectively with cross-functional teams
8. Relevant certifications (e.g., CCNA, JNCIA) are preferred

What we offer

At VSTECS (SINGAPORE) PTE. LTD.', we value our employees and strive to provide a supportive and rewarding work environment. Some of the benefits you can expect include:

1. Competitive salary and performance-based bonuses
2. Comprehensive health insurance coverage
3. Opportunities for professional development and career advancement
4. Flexible work arrangements to maintain a healthy work-life balance
5. A collaborative and innovative company culture

About us

VSTECS (SINGAPORE) PTE. LTD.' is a leading provider of IT solutions and services in the region. With a strong focus on innovation and customer satisfaction, we are committed to empowering our clients with the latest technology and expertise. Join our dynamic team and be a part of our continued success.

Apply now to become our next Network Engineer!