Senior Network Engineer - L3
- Level
- Senior
Not stated in the posting: salary, work type, visa.
Open. First seen 2 October 2026.
About the role
Senior Network Engineer – L3
Important Information
Location: Singapore
12 months contract
Job Summary
As a Senior Network Engineer, you will be responsible in providing Tier-3 support for enterprise networks including Cisco, Juniper, Palo Alto, and Fortinet.
Required Key Skills
- Expert level knowledge in implementation and maintenance of Cisco Routers and Switches of all series.
- Good knowledge in Cisco IOS
- Good knowledge in implementation and operations support of NAC (network access control)
- Good knowledge in Aruba Clear Pass / Cisco ISE
- Good knowledge in Wireless Network / Access Points / Controllers support and troubleshooting
- Expert level understanding of the OSI or TCP/IP model
- Provide Level-2 technical support and troubleshooting to resolve issues
- CCNP certification
- Hands-on experience with monitoring, network diagnostic, Packet Tracers and network analytics tools
- Good knowledge on Firewall Products like Cisco ASA, FortiGate, Palo Alto, Checkpoint
- Good knowledge on Aruba ClearPass/Cisco ISE, Cisco wireless controllers
- Knowledge on F5 load balancers
Priority Tasks
- Workplace is at customer premises and staff has to follow instituted Workplace securities
- Perform Problem resolution, escalation and/or closure of incident including problem analysis and identification of the source of the problem w.r.t Routing and Switching
- Perform configuration change activities
- Provide problem status to the Service Desk and/or update into the ticketing tool according to the Procedures Manual
- Perform day-to-day Network operation for the Network Infra-structure and Network Equipment at the customer premises, including performance monitoring, bandwidth monitoring.
- Work with customer's vendor to perform testing and preventative maintenance according to the schedule provided by the customer for the Network Equipment
- Perform periodic OS upgrade and Patching as and when required.
- 24X5 rotational shift onsite availability and 24X7 standby / remote support availability as and when needed for critical incidents.
- Perform Problem resolution, escalation and/or closure of incident including problem analysis and identification of the source of the problem
- Provide proactive incident reports for all Network related problems, faults, events within TWENTY-FOUR (24) hours
- Respond to all fault calls inclusive of emails and other forms of communications for Firewall related issues and problems reported
- Escalate the problem to Vendors Support in timely manner and get the issue resolved within the specified time as agreed with the customer
- Provide multi-vendor equipment support across a wide range of models and types of networking equipment
- Maintain the inventory of certificates and install/update/renew certificates as and when required.
- Perform security activities like hardening/periodic health check/ ID validation and other compliance activities as per security policies and standards.
- Maintain/Update inventory list and compliance related databases or similar Databases.
- Maintain the device inventory list for the client when needed, Maintain the software/firmware for all the devices up to date
- Subscribe to vendor notifications for the managed devices for vulnerabilities and review/validate/apply security patches pro-actively.
- Perform device activation / deactivation as per service activation and deactivation process.
- Maintain the IP address inventory and allocate new IP address when required by business.
- Engage third part vendors to resolve hardware issues and follow up till closure
- Monitor vendor End of Life / End of Support notifications for all In Scope Devices and inform the client.
About Encora
Encora is a global company that offers Software and Digital Engineering solutions. Our practices include Cloud Services, Product Engineering & Application Modernization, Data & Analytics, Digital Experience & Design Services, DevSecOps, Cybersecurity, Quality Engineering, AI & LLM Engineering, among others.
At Encora, we hire professionals based solely on their skills and do not discriminate based on age, disability, religion, gender, sexual orientation, socioeconomic status, or nationality.
The team: APAC DU
This role is one of 17 open in APAC DU.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Cybersecurity (13 of 17), LLM (12 of 17), CI/CD (8 of 17), Java (7 of 17), Git (6 of 17), Agile (5 of 17), Azure (5 of 17)
OTHER ROLES ON THIS TEAM
- Senior Business Analyst (Automation & Core Banking) posted Aug 13
- React JS Developer posted Aug 7
- Java Full Stack Developer posted Aug 7
- Java Developer posted Aug 7
- Fullstack Developer posted Aug 7
- Cybersecurity Engineer posted Aug 7
- Senior Backend Developer ( C++ and Payment) posted Aug 5
- Application Maintenance Engineer posted Aug 4
- Technical Delivery Manager posted Aug 4
- Test Lead posted Jul 28
- DevOps Engineer posted Jul 16
- Lead Data & Integration Engineer posted Jul 13
- Project Manager posted Jul 13
- Data Project Manager (Data PM) posted Jul 13
- HashiCorp Vault Senior Engineer posted Jun 23
- Systems Engineer posted May 22
From the team and dates on Encora's own job board.
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