Senior Systems Engineer - Juniper (Mist)

Senior Systems Engineers possess expertise in specific infrastructure specialisms and are responsible for the entire development and support process related to their specialism. You are responsible for delivering high-quality solutions for both colleagues and customers, with the impact ranging from saving time, effort, or money to redefining normal operations. You have up-to-date knowledge of the latest technology trends, along with practical expertise in the types of systems, infrastructure, and applications used within Tesco.

You will be responsible for:

Design and deliver network solutions using existing network infrastructure. Where new Network technologies are being introduced, implement them, and establish the best practice for their adoption. Resolve incidents and problems associated with the technical area of responsibility.

Contribute to the Technology Roadmap for Tesco Network Services.

Evaluate new tools and techniques to be able to understand their value and impact.

Lead group design discussions on my area of expertise and be able to present with authority to a variety of audiences.

Collaborate with other technical teams to understand their requirements and assist them by consuming Infrastructure in the most seamless way possible.

You will need:

Experience designing and deploying solutions for large, complex global organizations.

Analytical and structured approach to design, process, and advanced troubleshooting.

Work with Architecture to produce and maintain high-quality HLD/LLD and maintain standard documentation for areas of responsibility.

Well-organized self-starter who takes personal ownership and accountability at required levels of the work stream and project life cycles; willing to go the extra mile at every opportunity.

Builds and maintains positive relationships within and across teams.

Communicates effectively, able to deliver and present both written and verbal designs, strategies, and concepts clearly.

Required Technology Skills

Networking Expertise:
Design, build, and operation of large-scale multilayer switching and routing with Juniper (Mist), HP, Arista, and Cisco.
Proficient in technologies like Multicast, Port Channeling, EIGRP, BGP, CDP, GLBP, VRF, and QoS.

WAN Technologies:
Knowledge of MPLS, WAN Optimization (Riverbed Steelhead, Cisco WAS), CoS, and DWDM.
Experience working with global communication providers.

Technical Knowledge:
Deep understanding of OSI models, routing protocols (BGP, OSPF, iGRP), DNS, DHCP, IP management, TCP/UDP, and IEEE 802 standards.

Switching Architectures:
Expertise in Cisco/Arista Spine/Leaf and Juniper/HP 3-tier (Core, Distribution, Access) architectures.

Advanced BGP:
Proficient in eBGP, communities, prefix lists, and BGP attributes.

VPN Technologies:
Skilled in IPSec, TLS/SSL, digital certificates, GRE, and DMVPN.
Load Balancing:
Experience with F5 appliances, Cisco ACE, and Citrix Netscaler for load and DNS balancing.

Internet/Web Technologies:
Understanding of CDN, proxy/caching, SSL offloading/interception, and URL redirection tools (e.g., Akamai, Bluecoat, Zscaler).
Knowledge of HTML, HTTP/HTTPS, and XML protocols.

Network Management:
Expertise in SNMP, NetFlow, IPSLA, and related network management/alerting tools.

What's in it for you:

We’re all about the little helps. That’s why we make sure our Tesco colleague benefits package takes care of you – both in and out of work. Click Here to find out more!

Annual bonus scheme of up to 20% of base salary
Holiday starting at 25 days plus a personal day (plus Bank holidays)
Private medical insurance
26 weeks maternity and adoption leave (after 1 years’ service) at full pay, followed by 13 weeks of Statutory Maternity Pay or Statutory Adoption Pay, we also offer 6 weeks fully paid paternity leave
Free 24/7 virtual GP service, Employee Assistance Programme (EAP) for you and your family, free access to a range of experts to support your mental wellbeing

About us:

Our vision at Tesco is to become every customer's favourite way to shop, whether they are at home or out on the move. Our core purpose is 'Serving our customers, communities and planet a little better every day'. Serving means more than a transactional relationship with our customers. It means acting as a responsible and sustainable business for all stakeholders, for the communities we are part of and for the planet.

We are proud to have an inclusive culture at Tesco where everyone truly feels able to be themselves. At Tesco, we not only celebrate diversity, but recognise the value and opportunity it brings. We're committed to creating a workplace where differences are valued, and make sure that all colleagues are given the same opportunities. We're a big business with diverse working patterns and many business areas which means that we can find something that works for you. Everyone is welcome at Tesco.

We have recently announced that we will be moving towards a more blended working week – combining office and remote working. Our offices will continue to be where we connect, collaborate and innovate. Please talk to us to about how this can work for you.

NOTE: Should you be successful in your application, your offer will be subject to and conditional upon you providing your bank account details on your agreed start date.

We're proud to have been accredited Disability Confident Leader and we're committed to providing a fully inclusive and accessible recruitment process. For further information on the accessibility support we can offer, please visit https://www.tesco-careers.com/accessibility