Senior Network Engineer

Senior Network Engineer

London Full-Time 42000 - 84000 ÂŁ / year (est.) Home office (partial)
J

At a Glance

  • Tasks: Design and manage cutting-edge network infrastructure using Cisco technologies and automation tools.
  • Company: Join Janus Henderson Investors, a leader in financial services dedicated to client success.
  • Benefits: Enjoy hybrid working, generous holidays, paid volunteer time, and wellness perks like Headspace subscriptions.
  • Why this job: Be part of a mission-driven team that values diversity, collaboration, and professional growth.
  • Qualifications: CCNP certification and strong experience with Cisco networking and automation skills required.
  • Other info: Flexible working options available; we welcome diverse applicants and support reasonable accommodations.

The predicted salary is between 42000 - 84000 ÂŁ per year.

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Why work for us?
A career at Janus Henderson is more than a job, it’s about investing in a brighter future together.
Our Mission at Janus Henderson is to help clients define and achieve superior financial outcomes through differentiated insights, disciplined investments, and world-class service. We will do this by protecting and growing our core business, amplifying our strengths and diversifying where we have the right.
Our Values are key to driving our success, and are at the heart of everything we do:
Clients Come First – Always | Execution Supersedes Intention | Together We Win | Diversity Improves Results | Truth Builds Trust
If our mission, values, and purpose align with your own, we would love to hear from you!
Your opportunity

  • Design and operate Cisco ACI infrastructure
  • Automate network tasks and processes using Python, Ansible, and Terraform
  • Design, implement and maintain the company\’s network infrastructure, including Cisco IOS-XE routers and switches, Cisco Nexus datacenter switches, and Cisco 9800 Wireless LAN Controllers
  • Configure and manage Palo Alto firewalls, including Panorama, and ensure that security policies are up to date and aligned with industry and internal standards
  • Implement and manage network access control using Cisco ISE for 802.1x and TACACS
  • Manage F5 Big-IP load balancers to ensure high availability and performance of critical applications
  • Maintain and troubleshoot BGP and OSPF routing protocols and participate in the design and implementation of routing and switching solutions
  • Monitor the network using SolarWinds network monitoring solutions and take proactive measures to prevent network outages and performance issues
  • Manage Wi-Fi in a large office environment and ensure that wireless network performance meets business requirements
  • Configure and manage WAN Technologies such as Cisco WAAS & VWAAS and SD-WAN Solutions
  • Implement and manage cloud networking concepts in Microsoft Azure, including virtual networks, subnets, security groups, and ExpressRoute connections
  • Work in a global, enterprise-class, mission-critical, 7x24x365 network/telecommunication environment
  • Mentor junior network engineers and contribute to knowledge sharing within the team
  • Work occasional weekends and participate in the on-call rotation

What to expect when you join our firm

  • Hybrid working and reasonable accommodations
  • Generous Holiday policies
  • Paid volunteer time to step away from your desk and into the community
  • Support to grow through professional development courses, tuition/qualification reimbursement and more
  • Maternal/paternal leave benefits and family services
  • Complimentary subscription to Headspace – the mindfulness app
  • Corporate membership to ClassPass and other health and well-being benefits
  • All employee events including networking opportunities and social activities
  • Lunch allowance for use within our subsidized onsite canteen

Must have skills

  • CCNP certification or equivalent experience
  • Strong experience with Cisco networking technologies, including Cisco IOS-XE routers and switches, Cisco Nexus datacenter switches, and Cisco 9800 Wireless LAN Controllers
  • Expertise in Palo Alto firewalls, including Panorama, and network access control using Cisco ISE for 802.1x and TACACS
  • Good understanding of F5 Big-IP load balancers, BGP and OSPF routing protocols, and SolarWinds network monitoring solutions
  • Knowledge of cloud networking concepts in Microsoft Azure and virtualized datacenter environments
  • Strong automation and scripting skills using Python, Ansible, and Terraform
  • Excellent communication and interpersonal skills, with the ability to work collaboratively with other IT teams, vendors, and business stakeholders

Supervisory responsibilities

  • No

Potential for growth

  • Mentoring
  • Leadership development programs
  • Regular training
  • Career development services
  • Continuing education courses

You will be expected to understand the regulatory obligations of the firm, and abide by the regulated entity requirements and JHI policies applicable for your role.
At Janus Henderson Investors we’re committed to an inclusive and supportive environment. We believe diversity improves results and we welcome applications from all backgrounds. Don’t worry if you don’t think you tick every box, we still want to hear from you! We understand everyone has different commitments and while we can’t accommodate every flexible working request we’re happy to be asked about work flexibility and our hybrid working environment. If you need any reasonable accommodations during our recruitment process, please get in touch and let us know at .
Janus Henderson (including its subsidiaries) will not maintain existing or sponsor new industry registrations or licenses where not supported by an employee’s job functions (as determined by Janus Henderson at its sole discretion).
All applicants must be willing to comply with the provisions of Janus Henderson Investment Advisory Code of Ethics related to personal securities activities and other disclosure and certification requirements, including past political contributions and political activities. Applicants’ past political contributions or activity may impact applicants’ eligibility for this position. Janus Henderson is an equal opportunity /Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. All applications are subject to background checks.

Seniority level

  • Seniority level

    Mid-Senior level

Employment type

  • Employment type

    Full-time

Job function

  • Job function

    Information Technology

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Senior Network Engineer employer: Janus Henderson Investors

At Janus Henderson Investors, we pride ourselves on fostering a collaborative and inclusive work culture that prioritises employee well-being and professional growth. With generous benefits such as hybrid working options, paid volunteer time, and comprehensive health programmes, we empower our team members to thrive both personally and professionally in the vibrant city of London. Join us to be part of a mission-driven organisation where your contributions truly matter and where you can develop your skills in a supportive environment.
J

Contact Detail:

Janus Henderson Investors Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Network Engineer

✨Tip Number 1

Familiarise yourself with the specific technologies mentioned in the job description, such as Cisco ACI, Palo Alto firewalls, and F5 Big-IP load balancers. Having hands-on experience or relevant projects to discuss can set you apart during interviews.

✨Tip Number 2

Network with current or former employees of Janus Henderson Investors on platforms like LinkedIn. Engaging with them can provide valuable insights into the company culture and expectations, which you can leverage in your discussions.

✨Tip Number 3

Prepare to discuss your automation skills using Python, Ansible, and Terraform. Be ready to share examples of how you've used these tools to improve network efficiency or resolve issues in past roles.

✨Tip Number 4

Showcase your soft skills, particularly communication and teamwork. Since the role involves mentoring junior engineers and collaborating with various teams, demonstrating your ability to work well with others will be crucial.

We think you need these skills to ace Senior Network Engineer

CCNP certification or equivalent experience
Strong experience with Cisco networking technologies
Expertise in Palo Alto firewalls and Panorama
Knowledge of network access control using Cisco ISE for 802.1x and TACACS
Good understanding of F5 Big-IP load balancers
Proficiency in BGP and OSPF routing protocols
Experience with SolarWinds network monitoring solutions
Knowledge of cloud networking concepts in Microsoft Azure
Strong automation and scripting skills using Python, Ansible, and Terraform
Excellent communication and interpersonal skills
Ability to work collaboratively with IT teams, vendors, and business stakeholders
Experience in managing WAN Technologies such as Cisco WAAS & VWAAS and SD-WAN Solutions
Ability to mentor junior network engineers

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your experience with Cisco networking technologies, automation skills using Python, Ansible, and Terraform, and your expertise in Palo Alto firewalls. Use specific examples to demonstrate your achievements in these areas.

Craft a Compelling Cover Letter: In your cover letter, express your alignment with Janus Henderson's mission and values. Mention how your skills and experiences make you a great fit for the Senior Network Engineer role, and show enthusiasm for contributing to their team.

Highlight Relevant Certifications: Ensure you prominently display your CCNP certification or equivalent experience in your application. This is crucial as it demonstrates your qualifications for the technical aspects of the role.

Showcase Soft Skills: Don't forget to mention your excellent communication and interpersonal skills. Provide examples of how you've worked collaboratively with IT teams and stakeholders, as this aligns with the company's emphasis on teamwork and client focus.

How to prepare for a job interview at Janus Henderson Investors

✨Showcase Your Technical Skills

Make sure to highlight your experience with Cisco networking technologies, especially Cisco IOS-XE routers and switches. Be prepared to discuss specific projects where you've implemented or managed these technologies.

✨Demonstrate Automation Proficiency

Since the role involves automating network tasks using Python, Ansible, and Terraform, be ready to share examples of how you've used these tools in past roles. Discuss any scripts or automation processes you've developed.

✨Align with Company Values

Janus Henderson Investors places a strong emphasis on their values. Familiarise yourself with their mission and values, and think about how your personal values align with theirs. Be ready to discuss this during the interview.

✨Prepare for Scenario-Based Questions

Expect scenario-based questions that assess your problem-solving skills, particularly in network troubleshooting and management. Practice articulating your thought process and decision-making in these scenarios.

Senior Network Engineer
Janus Henderson Investors
J
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