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For Companies At a Glance
- Tasks: Design, deploy, and optimise low-latency Arista networks in a dynamic environment.
- Company: Join a cutting-edge tech company focused on global data centre solutions.
- Benefits: Enjoy remote work flexibility with competitive pay and long-term contract stability.
- Why this job: Be part of a high-impact team driving automation and innovation in network engineering.
- Qualifications: Strong experience with Arista EOS, network automation, and routing protocols required.
- Other info: Opportunity to mentor junior engineers and collaborate globally.
The predicted salary is between 60000 - 84000 £ per year.
We are seeking an experienced Senior Network Engineer with a proven background in Arista-based data centre networks and a strong focus on network automation. The successful candidate will join a highly technical environment supporting the design, deployment, and ongoing optimisation of low-latency, high-availability infrastructure across global data centres.
You’ll work with a modern network stack (Arista EOS, CloudVision, Python, Nornir, Ansible) and interface closely with architecture, security, and DevOps teams to drive automation and resiliency in a performance-critical environment.
Key Responsibilities- Lead the design, deployment, and optimisation of Arista-based data centre networks, with a focus on low-latency and high resilience.
- Configure and troubleshoot BGP, EVPN (VXLAN), and Multicast (PIM, IGMP) in complex enterprise environments.
- Use Arista CloudVision for orchestration, telemetry, and automated configuration management across global environments.
- Build and maintain network automation scripts using Python, Nornir, and Ansible, ensuring repeatability and alignment with infrastructure-as-code practices.
- Support large-scale hardware refreshes and migrations from Cisco to Arista, ensuring minimal downtime in production environments.
- Collaborate with global teams to align network delivery with broader CI/CD pipelines, and implement proactive monitoring and remediation frameworks.
- Provide senior-level L3 support, mentor junior engineers, and drive best practices in operational excellence.
- Strong hands-on experience with Arista EOS in complex enterprise or global data centre environments.
- Deep knowledge of routing protocols (BGP, OSPF, EVPN) and Multicast technologies.
- Demonstrated experience working with Arista CloudVision in both greenfield and brownfield deployments.
- Background in low-latency networks – ideally within financial services or other performance-critical environments.
- Proficiency in network automation using Python, Ansible, Nornir, and version control tools (Git).
- Solid grounding in Layer 2/3 principles, troubleshooting, and production change management.
- Excellent documentation and communication skills; able to work collaboratively across global teams.
- Experience with Cisco Nexus platforms (2k–9k) and migrations to Arista.
- Exposure to network security platforms (Palo Alto, Fortinet, F5).
- Familiarity with CI/CD pipelines and infrastructure-as-code principles.
- Experience with monitoring tools (SolarWinds, PRTG, Logic Monitor) and SNOW for incident/change management.
- Relevant certifications (CCNP R&S, CCNP DC, PCNSA, ACI Specialist, or CCIE in progress) are a strong plus.
Senior Network Engineer employer: Square One Resources
Contact Detail:
Square One Resources Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Network Engineer
✨Tip Number 1
Network automation is key for this role, so make sure to showcase your experience with Python, Ansible, and Nornir in conversations. Be ready to discuss specific projects where you've implemented automation solutions.
✨Tip Number 2
Familiarise yourself with Arista EOS and CloudVision, as these are crucial for the position. Consider preparing examples of how you've used these tools in previous roles, especially in low-latency environments.
✨Tip Number 3
Highlight your experience with routing protocols like BGP and EVPN during discussions. Be prepared to explain complex scenarios where you successfully configured or troubleshot these protocols.
✨Tip Number 4
Since collaboration is essential, think of instances where you've worked closely with DevOps or security teams. Sharing these experiences can demonstrate your ability to work in a cross-functional environment.
We think you need these skills to ace Senior Network Engineer
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights your experience with Arista EOS, network automation, and low-latency environments. Use specific examples that demonstrate your skills in BGP, EVPN, and Multicast technologies.
Craft a Compelling Cover Letter: Write a cover letter that showcases your passion for network engineering and your understanding of the role. Mention your experience with Arista CloudVision and how you've successfully implemented automation in previous roles.
Highlight Relevant Projects: In your application, include details about specific projects where you led the design or optimisation of data centre networks. Emphasise your contributions to network automation and any mentoring roles you've taken on.
Showcase Soft Skills: Don't forget to mention your communication and collaboration skills. Provide examples of how you've worked with global teams and contributed to operational excellence in past positions.
How to prepare for a job interview at Square One Resources
✨Showcase Your Technical Expertise
Be prepared to discuss your hands-on experience with Arista EOS and the specific technologies mentioned in the job description. Highlight any projects where you've configured BGP, EVPN, or Multicast, and be ready to explain your approach to troubleshooting complex network issues.
✨Demonstrate Automation Skills
Since the role focuses on network automation, come equipped with examples of scripts you've built using Python, Ansible, or Nornir. Discuss how these scripts improved efficiency or reduced downtime in previous roles, showcasing your ability to align with infrastructure-as-code practices.
✨Prepare for Scenario-Based Questions
Expect scenario-based questions that assess your problem-solving skills in low-latency environments. Think about challenges you've faced in past roles, particularly during hardware migrations or when implementing monitoring frameworks, and how you overcame them.
✨Emphasise Collaboration and Mentorship
This position involves working closely with global teams and mentoring junior engineers. Be ready to share experiences where you've collaborated effectively across departments or provided guidance to less experienced colleagues, highlighting your communication skills and leadership qualities.
