Principal Network Engineer (Data Centre)
Principal Network Engineer (Data Centre)

Principal Network Engineer (Data Centre)

City of London Part-Time 66000 - 88000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Join a team to build and maintain high-performance networks for global financial institutions.
  • Company: A leading global financial markets infrastructure firm with a 300-year legacy.
  • Benefits: Enjoy a competitive salary, bonus potential, and hybrid work options in London.
  • Why this job: Be part of a critical role that supports global financial stability and innovation.
  • Qualifications: Expertise in routing, switching, multicast, and automation tools is essential.
  • Other info: Work 3 days a week onsite in a vibrant central London office.

The predicted salary is between 66000 - 88000 £ per year.

A leading global financial markets infrastructure and data business is looking for a highly skilled Network Engineer to join their team. With operations in over 70 countries and a 300-year legacy, this organisation plays a key role in supporting global financial stability and innovation.

This role sits within a critical engineering function focused on building and maintaining low-latency, high-performance networks used by some of the world’s most important financial institutions.

What They’re Looking For:

  • Deep expertise in routing and switching – Cisco, Juniper, Arista
  • Strong understanding of multicast – IGMP, PIM, RP
  • Experience with LAN, WAN, BGP, OSPF, MPLS, VPN, GRE, NAT
  • Familiarity with SDN, Cisco ACI, VxLAN, and data centre networking
  • Knowledge of automation tools – Python, Ansible
  • Exposure to low-latency networks in high-performance environments
  • Comfortable working 3 days per week onsite in a central London office

This is a fantastic opportunity to join a company at the heart of global financial infrastructure, working on complex systems that genuinely impact the wider economy.

If this sounds like you or someone in your network, feel free to reach out to george.harris@harringtonstarr.com for more info.

Principal Network Engineer (Data Centre) employer: Harrington Starr

As a leading global financial markets infrastructure and data business, we pride ourselves on being an exceptional employer that fosters a dynamic work culture in the heart of London. Our commitment to employee growth is evident through continuous learning opportunities and a collaborative environment, where your expertise in network engineering will directly contribute to global financial stability. With competitive compensation, including a generous bonus structure, and the flexibility of a hybrid working model, we offer a rewarding career path for those looking to make a meaningful impact in the financial sector.
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Contact Detail:

Harrington Starr Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Principal Network Engineer (Data Centre)

✨Tip Number 1

Make sure to showcase your deep expertise in routing and switching technologies like Cisco, Juniper, and Arista during networking events or meetups. Engaging with professionals in the field can help you gain insights and potentially lead to referrals.

✨Tip Number 2

Join online forums or communities focused on multicast technologies and low-latency networks. Participating in discussions can not only enhance your knowledge but also connect you with industry insiders who might have leads on job openings.

✨Tip Number 3

Consider attending workshops or webinars that focus on automation tools like Python and Ansible. This will not only boost your skills but also demonstrate your commitment to staying current in the field, making you a more attractive candidate.

✨Tip Number 4

If you have contacts within the financial sector, reach out to them for informational interviews. Understanding their experiences and insights can provide you with valuable information about the company culture and expectations, which can be beneficial during your application process.

We think you need these skills to ace Principal Network Engineer (Data Centre)

Deep expertise in routing and switching
Cisco networking
Juniper networking
Arista networking
Strong understanding of multicast protocols (IGMP, PIM, RP)
Experience with LAN and WAN technologies
Proficient in BGP, OSPF, MPLS, VPN, GRE, NAT
Familiarity with Software-Defined Networking (SDN)
Knowledge of Cisco ACI and VxLAN
Data centre networking expertise
Experience with automation tools (Python, Ansible)
Exposure to low-latency networks
Ability to work in high-performance environments
Strong problem-solving skills
Excellent communication skills

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your deep expertise in routing and switching, as well as your experience with multicast protocols like IGMP and PIM. Use specific examples from your past roles to demonstrate your skills.

Craft a Compelling Cover Letter: In your cover letter, express your enthusiasm for the role and the company. Mention your familiarity with low-latency networks and automation tools like Python and Ansible, and explain how your background aligns with their needs.

Highlight Relevant Experience: When detailing your work history, focus on experiences that showcase your knowledge of LAN, WAN, BGP, OSPF, MPLS, and VPN. Be specific about your contributions to projects involving high-performance environments.

Proofread Your Application: Before submitting, carefully proofread your application materials. Check for any spelling or grammatical errors, and ensure that all technical terms are used correctly. A polished application reflects your attention to detail.

How to prepare for a job interview at Harrington Starr

✨Showcase Your Technical Expertise

Be prepared to discuss your deep expertise in routing and switching, particularly with Cisco, Juniper, and Arista. Highlight specific projects or experiences where you successfully implemented these technologies.

✨Demonstrate Understanding of Multicast

Since the role requires a strong understanding of multicast protocols like IGMP and PIM, be ready to explain how you've used these in past roles. Consider discussing any challenges you faced and how you overcame them.

✨Familiarity with Automation Tools

Make sure to mention your experience with automation tools such as Python and Ansible. Prepare examples of how you've used these tools to improve network performance or efficiency in previous positions.

✨Prepare for Scenario-Based Questions

Expect scenario-based questions that assess your problem-solving skills in low-latency, high-performance environments. Think of specific situations where you had to troubleshoot or optimise network performance and be ready to share those stories.

Principal Network Engineer (Data Centre)
Harrington Starr
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  • Principal Network Engineer (Data Centre)

    City of London
    Part-Time
    66000 - 88000 £ / year (est.)

    Application deadline: 2027-05-16

  • H

    Harrington Starr

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