Core Network Engineer (Arista)

Systems Limited is seeking a seasoned Core Network Engineer with specialized expertise in Arista technologies, data centre networking, migration, and hybrid cloud connectivity. The successful candidate will play a critical role in designing, implementing, and managing enterprise network infrastructure. This includes ensuring smooth data centre migrations, maintaining network reliability, and optimizing overall network performance to support business operations effectively.

Key Responsibilities

- Design, implement, and manage Arista core network infrastructure, focusing on leaf-spine architecture, MLAG, VXLAN/EVPN, and Layer 2/3 networking protocols.
- Lead comprehensive data centre migration projects, including discovery, dependency mapping, cutover planning, and execution phases.
- Architect and oversee hybrid cloud connectivity solutions using platforms such as Azure ExpressRoute, OCI FastConnect, and GCP Interconnect.
- Configure and optimize critical network protocols and technologies, including BGP, OSPF, VLANs, VRFs, QoS, load balancing, firewalls, and VPNs.
- Conduct capacity planning, network monitoring, firmware upgrades, and implement security hardening measures.
- Troubleshoot complex network issues to ensure high availability and optimal performance.
- Maintain detailed technical documentation, including High-Level Designs (HLDs), Low-Level Designs (LLDs), runbooks, and change management records.

Required Qualifications

- Minimum of 8 years’ experience in core network engineering, data centre networking, or related infrastructure roles.
- Strong hands-on experience with Arista EOS, CloudVision, and network fabric design and operations.
- Proven track record in leading data centre migrations, particularly in cutover planning and execution.
- Deep understanding of BGP, OSPF, VXLAN/EVPN, MLAG, and hybrid cloud connectivity concepts.
- Advanced network troubleshooting skills, including packet-level analysis.
- Experience working with network monitoring tools such as SolarWinds or Zabbix.

Preferred Qualifications and Benefits

- Certifications such as Arista ACE-A/P, Cisco CCNP/CCIE, or Microsoft AZ-700 are highly desirable.
- Knowledge of network automation using Ansible or Python will be considered an advantage.

This role offers the opportunity to work with cutting-edge networking technologies in a dynamic environment, contributing to critical infrastructure projects that support enterprise growth and innovation.