VodafoneThree - Fibre Capacity Analyst

Location:Newbury (Hybrid)

Working hours:Full time 37.5 hours per week – Mon to Fri

*Hybrid

We believe that through collaboration and connection with our colleagues we can achieve great things. Our hybrid working approach allows our people to work both in the office and at home, providing the flexibility and resources you need to succeed in your role. We don't require you to be in on specific days; instead, we ask people to come into the office 2-3 days each week, for at least 8 days per month. You should work with your line manager to understand what their expectations are for you, your specific role and your team.

Who We Are

We’re here to build a network the UK can count on – one that connects people, places and potential. Because no matter where you live, what your background is, or how you get online – we think everyone deserves the same chance to stay connected, and with VodafoneThree, that future’s being built – today.

We’re creating more than the UK’s best network. We’re helping close the digital divide, empower communities and drive meaningful progress.

We believe that everyone should feel they belong. Whoever you are and whatever your story, there’s space for you here. We’re building a workplace where different perspectives are welcomed, voices are heard, and everyone feels safe to show up as themselves.

You’ll join a team that genuinely cares – about each other, about our customers, and about the future we’re building. From day one, you’ll be welcomed, valued and encouraged to bring your whole self to work.

Why VodafoneThree

Join us and you’ll be at the heart of change. That means building responsibly, investing sustainably and creating opportunities that last.

We’re not just expanding connectivity; we’re reimagining what a connected nation looks like. With £11bn invested in 5G and digital infrastructure, your work will directly power businesses, services, and communities across the country.

You’ll work on real challenges, with real impact, across every corner of the country. Wherever you join us, whatever your role, you’ll be helping to build a future that works better for everyone.

We move at pace, because what we’re building matters – and we’re learning as we go. We’re proud of the progress we’ve made, but we’re just getting started.

The Fibre Capacity Analyst is responsible for ensuring sufficient and cost‑efficient capacity across the fibre transport network (access, aggregation, and core), enabling reliable service delivery and headroom for growth. The role combines data analysis, capacity modelling, and cross‑functional coordination to anticipate congestion, trigger augmentations, and optimise utilisation on leased and owned fibre assets.

What you will do in the role:

• Lead capacity management across fibre.
• Build and maintain short‑, medium‑ and long‑term capacity plans for fibre paths, ducts, sub‑ducts, spares, and lit services.
• Translate demand (RAN rollout, 5G/FTTP take‑up, enterprise orders, IP core uplift, maintenance windows) into capacity requirements at link, node, and route level.
• Model headroom and risk using thresholds and time‑to‑exhaust with scenario analysis and seasonality.
• Monitor utilisation trends across access backhaul, aggregation rings, metro and long‑haul, flagging hotspots and service risk.
• Produce weekly congestion dashboards and exception reports; recommend tactical and strategic augments).
• Build repeatable analytics via SQL/Python and BI dashboards (Power BI/Tableau); automate data pipelines and model refresh.
• Raise and track capacity augments (buyouts, xWDM expansion, new waves, duct build, leased line upgrades) through design, commercial approval, and delivery.
• Support on the business cases with ROI/TCO, capex/opex split, options analysis, and risk assessment; present to governance forums (e.g., Change Board).
• Develop and maintain capacity models for fibre infrastructure. 
• Forecast future capacity needs based on traffic trends, business growth, and technology evolution. 
• Provide capacity input into strategic decision making for investment planning and vendor discussions.
• Drive automation of capacity tracking and monitoring processes. 
• Drive the use and development of tooling (e.g., telemetry, inventory, analytics dashboards). 
• Collaborate with fibre strategy, fibre planning and fixed fibre enterprise team.  
• Support on regulatory requirement for Capacity.
• Govern the integration of Capacity insights into annual budgeting and delivery cycles. 

The ideal person for the role.

• Extensive experience in telecom network capacity planning, performance management, and complex problem‑solving using multi-domain data‑driven approaches.
• Proven capability to model capacity scenarios, forecast demand and guide strategic decision‑making.
• Strong root‑cause analysis skills, with the ability to deliver tactical fixes and long‑term performance improvement plans with strong communication and stakeholder management.
• Deep understanding of transport technologies including Fibre, IP, MPLS, and DWDM, alongside proficiency in Python, SQL, Tableau, and Power BI.
• Hands‑on experience with network monitoring and inventory platforms, including producing accurate weekly/monthly capacity and performance reports and dashboards.

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Need to know

We are regulated by the Financial Conduct Authority and all offers of employment for this role are subject to background checks, including criminal (DBS) and financial checks to meet the regulators standards.

We believe everyone should have the opportunity to interview for a role that matches their skills. In collaboration with our Talent, Diversity & Inclusion teams and our employee-led DEI Networks, we identified a range of reasonable adjustments to help you feel comfortable and perform at your best self during the interview process. If you require any reasonable adjustments or have an accessibility request as part of your recruitment journey, for example, extended time or breaks in between online assessments, a sign language interpreter, or assistive technology, please contact your recruiter directly or emailjobs@three.co.uk for guidance.

We use AI in different parts of our business to boost innovation, improve efficiency, and create new opportunities. We know many candidates use AI to fine-tune their CVs or prepare for interviews, but what we really care about is your unique experiences and achievements.

During the interview, we want you to rely on your own knowledge and skills to show us who you really are—your personality, creativity, and abilities. Above all, we’re looking for authenticity and can’t wait to get to know the real you.

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