Senior Core Network Engineer

Tekshapers; Toronto; On-site; CAD 90,000 - 130,000; Full time

Job summary

Tekshapers in Toronto seeks a seasoned network engineer to act as a subject matter expert for wireless packet core platforms across 5G, LTE, and 3G. You will lead design, instantiation, integration, and validation activities, and coordinate with engineering teams to ensure accurate deployments and documentation.

The role emphasizes automation, cloud and virtualization tooling, and end-to-end testing. You will maintain core nodes, troubleshoot issues, implement network tools and scripts, and

Qualifications

• Degree or diploma in Networking or Technology.
• Experience in a service provider environment.
• Experience with routers, switches, firewalls, routing, subnetting, and network protocols.
• In-depth TCP/IP knowledge and routing incl. OSPF, IS-IS, BGP, EIGRP, MPLS, MPLS VPN, multicast.
• Experience with Nokia 7750 SR and 7210 SAS platforms, TiMOS/SR OS, and 5620 NSP/CPAM.
• Experience with Nokia 7360 XGS-PON and 5520 AMS or other vendor OLTs.
• In-depth knowledge of security and DDoS mitigation.
• Ability to own and coordinate resolution of network problems.
• Advanced analytical and methodical troubleshooting skills.
• Strong oral and written communication skills.
• Proven ability to collaborate in a structured team environment.
• Creativity, problem-solving, judgment, and proactive learning.

Responsibilities

• Support design, instantiation, integration, and validation activities with HLD/LLD, IP Flow, MOP, TOL, and ATP docs.
• Support implementation and testing for wireless packet core platforms.
• Operate, maintain, and perform daily checks of packet core nodes; troubleshoot and resolve issues.
• Use cloud and virtualization tools to automate workflows and CNF/VNF lifecycles.
• Troubleshoot issues, validate integrations, perform end-to-end testing, and report KPIs.
• Configure and maintain IP and access network elements and platforms.
• Design and implement automation across Network Operations using in-house and open-source tools.
• Implement and review network tools and scripts; identify automation opportunities via data-driven analysis.
• Ensure seamless introduction of new technology platforms and services into Enterprise Network Operations.
• Communicate with engineering regarding design issues.

Skills

Wireless core expertise

Network automation

TCP/IP, BGP, OSPF, IS-IS

Nokia 7750 SR

Nokia 7210 SAS

Nokia 7360 XGS-PON

Security & DDoS mitigation

Troubleshooting

Communication skills

Team collaboration

CNF/VNF lifecycles

Cloud/virtualization tooling

Education

Degree or Diploma in Networking or Technology

Tools

Nokia 7750 SR

Nokia 7210 SAS

TiMOS/SR OS

Nokia 7360 XGS-PON

5520 AMS

Splunk

Grafana

Job description

Serve as a subject matter expert for wireless packet core platforms across 5G, LTE, and 3G

analysis, network automation, and technology introduction across packet core, IP, and access network

Key Responsibilities

• Support the preparation and execution of design, instantiation, integration, and validation activities, including HLD, LLD, IP Flow, MOP, TOL, and ATP documentation.
• Support implementation and testing for wireless packet core platforms.
• Operate, maintain, and perform daily checks of packet core nodes; troubleshoot, resolve, and
• es…
• Use cloud and virtualization tools to automate workflows, manage CNF/VNF platform lifecycles,
• troubleshoot issues, validate integrations, perform end-to-end testing, and report KPIs.
• Configure, manage, and maintain IP and access network elements and technology platforms.
• implementation, and verification.
• Maintain network design and support documentation.
• Design and implement automation across Network Operations using in-house and open-source development tools.
• Implement and review network tools and scripts, and identify automation opportunities through data-driven analysis.
• Ensure the seamless introduction of new technology platforms and services into Enterprise Network Operations.
• Communicate with engineering regarding identified logical and physical network design issues.

Wireless Packet Core Platforms

• 5G Standalone Core (5GC): AMF, SMF, and UPF.
• Evolved Packet Core (EPC): MME, PGW, SGW, HSS, and ePDG.

Required Qualifications and Skills:

• Degree or diploma in Networking or Technology.
• Demonstrated experience working in a service provider environment.
• Experience with routers, switches, firewalls, routing, subnetting, and network protocols.
• In-depth understanding of TCP/IP and IP packet routing, including OSPF, IS-IS, BGP, EIGRP, MPLS, MPLS VPN, and multicast technologies
• Experience with Nokia (ALU) Service Router 7750 SR and 7210 SAS platforms and services, TiMOS/SR OS, and 5620 NSP/CPAM software.
• Experience with Nokia 7360 XGS-PON and 5520 AMS, or another vendor OLT solution.
• In-depth knowledge of security and DDoS mitigation systems.
• Ability to take ownership of and coordinate the resolution of network-related problems.
• Advanced analytical and methodical troubleshooting skills.
• Effective oral and written communication skills.
• Demonstrated ability to collaborate effectively in an organized and methodical team environment.
• Capabilities in innovation, creative thinking, problem-solving, judgment, achievement orientation, active listening, understanding, and response.

Desired Skills and Certifications

• Knowledge of data analytics and log parsing using tools such as Splunk and Grafana.
• Lean Six Sigma knowledge or certification