Senior Network Architect

Transport for London; Greater London; Hybrid; GBP 75,000 - 85,000; Full time

Benefits offered by this job

Final salary pension

Free travel on TfL network

30 days annual leave

Hybrid working

Cycle-to-work programme

Discounts

Job summary

Transport for London in London is seeking a Senior Network Architect to shape end-to-end network solutions across data centre, WAN/LAN and cloud. You will work within the Hosting and Infrastructure Architecture team to design, validate and deploy secure, scalable architectures while collaborating with project managers, analysts, developers and suppliers.

The role blends office-based and hybrid work, with 2–3 days in the North Greenwich office.

Qualifications

• Extensive experience with data centre networks and public/private cloud integration.
• Strong knowledge of firewall, VPN, load balancing and WAN/LAN architectures.
• Ability to shape roadmaps and collaborate with PMs, BAs, Devs and suppliers.

Responsibilities

• Oversee end-to-end lifecycle of network products from concept to deployment.
• Collaborate with Project Manager, Business Analyst, Development Solution Architecture and Test Teams.
• Coordinate with third-party suppliers to ensure solutions meet requirements.
• Demonstrate knowledge of enterprise network architectures and security controls.

Skills

Network architecture

Cloud networking

Security networking

Vendor evaluation

Education

Bachelor's degree or equivalent

Tools

Dynatrace

SolarWinds

ThousandEyes

Zscaler

Azure

AWS

F5 VPN

Citrix Netscaler

Cisco firewall/switch

Check Point Firewall

Juniper Firewall

Job description

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Salary: £75,000-£85,000 dependent on skills, knowledge & experience. Including excellent benefits such as free travel across TfL services, Final Salary Pension and 30 days annual leave.

Location: North Greenwich, London - Hybrid Working

UK Sponsorship Unavailable

Permanent Role

Advert closes on Wednesday 18th November at 23.59

TfL operate a Hybrid Working policy with a maximum of 50% of time working from home a month, averaging 2-3 days a week in the office.

Build a thriving, future-forward city with us

As a Senior Network Architect in the Hosting and Infrastructure Architecture team at TfL you'll be at the heart of major projects and programmes of work that continually improve the travel experience in London. Recent examples of major initiatives the team have been involved in are enhancing Cyber Security, delivering transformations to our customer facing services like Revenue Collection & End User Computing, and internal systems that keep our business running, such as a complete refresh of our entire Datacentre Networks and Wireless Infrastructure across the London Underground. You will develop new solutions in Public and Private Cloud to deliver these and many more key initiatives.

What You’ll be doing

You’ll contribute to the end-to-end lifecycle of specific network products – from conceptualisation and business case development, right the way through to shaping achievable strategies and roadmaps. You’ll be supported by the Project Manager, Business Analyst, Development Solution Architecture and Test Teams to explore high and low-level designs, before seeing your network designs successfully deployed and put into operation. You will also work in partnership with third-party suppliers, seeing to it that their proposed solutions meet business and technical requirements. Knowledge and Experience

We are looking for someone with expert knowledge across the following infrastructure technologies:

• Data centre networks including public and private cloud (e.g. MPLS, SDN and WAN/LAN, Fabric, WiFi, QoS & CoS)
• Network technologies including firewall, switching, routing and proxy (e.g. F5 VPN and Load Balancing, Citrix Netscaler VPN and Load Balancing, Cisco (Firewalls, Routing, Switching and Wireless LAN controllers), Checkpoint Firewalls, Juniper Firewalls, Forcepolnt Proxy, Azure and AWS constructs)
• Zero-Trust Network Architectures (e.g. Zscaler)
• Network monitoring (e.g. Dynatrace, Solarwinds and Thousand Eyes)

It would be advantageous that you can also demonstrate knowledge of the following:

• IT vs Operational Technology and the differing requirements for each
• Managing contractual issues in a project environment
• Project management tools and techniques
• Certification in an Enterprise Architecture Framework such as TOGAF

The ideal candidate would also be educated to degree level or possess relevant professional experience.

In Addition To Being Skilled In

• Strong network architecture skills in architecting technology components across software, infrastructure and networks.
• Ability to take a loose set of requirements and build a high-level architecture using common standards. Refining the architecture as more information is discovered, decisions identified, and choices are made.
• Proven ability to analyse complex components, identify decision points, draw conclusions and produce design artefacts.
• Ability to communicate effectively, both orally and in writing, with people within a broad group of stakeholders including project managers, business analysts, developers, engineers and testers.
• Experience of designing and delivering systems using industry standard frameworks and open standards.
• Ability to work independently and as part of a team.
• Delivery focused with the ability to effectively prioritise tasks in a high-pressure environment to drive activities forward and meet demanding deadlines.

Excellent Benefits include:

• Final salary pension scheme
• Free travel for you on the TfL network
• Reimbursement of 75% of the cost of a standard class Ticket for National Rail travel from home or 75% reimbursement on a 28-day flexi ticket
• 30 days annual leave plus public and bank holidays
• TfL is committed to work-life balance, operating a hybrid working approach where business and role requirements allow
• Tax-efficient cycle-to-work programme
• Retail, health, leisure and travel offers
• Discounted Eurostar travel and much more!

Equality, diversity and inclusion

We are committed to equality, diversity and inclusion and aim to reflect the diverse communities we serve. We believe that a diverse workforce enables us to deliver better services and outcomes. Our goal is to make our recruitment as inclusive as possible.As aDisability Confident Leader,we actively encourage applications from disabled people. Aspart of the Disability Confident scheme, we aim tooffer an assessmentorinterviewtocandidates who apply via the scheme where the minimumessentialcriteria for skills, knowledge and experiencehasbeen met.In some circumstances, it may not be practical to offer an interview or assessment to every candidate whoapplies through the scheme and meet the minimum essential criteria; in these situations, we select candidates who best meet the minimum criteria for the job rather than interviewing all who meet them.

Across all recruitment activity, we recognise that selection methods may vary depending on the nature and scale of the campaign and will be applied fairly,consistentlyand proportionately in line with ourDisability Confident commitments.

Many of our staff work flexibly in many different ways. Please talk to us at interview about the flexibility you need. We'll see what we can do.

We understand a confidence gap can get in the way of meeting spectacular candidates. So please don’t hesitate to apply if you think you have what it takes even if you feel you don’t meet all the criteria. We’d love to hear from you.

At Transport for London, safety, trust and fairness sit at the heart of how we recruit. Our Vetting Charter ( https://tfl.gov.uk/corporate/careers/our-vetting-process ) explains the checks we carry out before you join us, helping ensure we create a safe, inclusive and reliable network for everyone who depends on our services. We simply ask that the information you provide is honest and accurate so we can progress your application smoothly. If something doesn’t match or can’t be verified, we may not be able to move forward with your application but we’ll always treat you with transparency, respect and clear communication throughout.