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Salary
≈ $138k – $355k per year (Estimated)
Location
In office (London)
Seniority
Senior
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 1, 2026. First seen by Alion on Sep 30, 2026. Telefónica Tech scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Telefónica Tech is the digital business unit created by Telefónica in 2019 to group its cybersecurity, cloud, internet of things and data services. It integrates and operates enterprise technology for large corporations and public bodies across Europe and Latin America. The unit employs several thousand specialists and runs a network of security operations centres.

Telefónica Tech (part of the Telefónica Group) is a leading NextGen Tech solutions provider with a highly diversified team of over 6,000 exceptionally skilled employees and +60 nationalities.

We serve more than 5.5m customers every day in over 175 countries, with a global ecosystem of market-leading partners. Global strategic hubs: Spain, Brazil, the UK, Germany.

The Telefónica Tech UK&I hub has an end- to-end portfolio of market leading services and develops integrated technology solutions to accelerate digital transformation through: Cloud, Data & AI, Enterprise Applications, Digital Workplace and Cyber Security & Networking.

Values: Open, Bold, Trusted

Trusted Partners:

  • Microsoft: Top 3 Service Providers, Azure Expert Status, Fastrack & Inner Circle Partner
  • HPE: Platinum Partner - FY23 UK&I Solution Provider of the Year
  • Palo Alto & Crowdstrike: part of our NextDefense Cyber Security Portfolio
  • Fortinet: Elite VIP Program - one of only 2 in the UK
  • AWS: Premier Tier Services Partner

Senior Application Architect - Azure, Application Modernisation

Why This Role?

We're looking for a Senior Application Modernisation Architect to help organisations unlock greater value from their application estate. Working across both pre-sales and delivery, you'll engage directly with customers, shape modernisation strategies, influence technical decisions and help deliver transformational cloud-native solutions. This is an opportunity to combine architecture, consulting and hands-on technical expertise while helping build and grow a rapidly expanding practice.

What You'll Be Doing

  • Lead customer discovery workshops to understand application landscapes, business challenges and transformation goals
  • Shape application modernisation strategies and cloud adoption roadmaps aligned to business outcomes
  • Design modern application solutions leveraging Microsoft Azure and cloud-native technologies
  • Support technical sales activities through solution design, proposals, presentations and customer demonstrations
  • Develop Statements of Work including scope, assumptions, delivery approach and effort estimation
  • Conduct application portfolio assessments, dependency analysis and modernisation planning
  • Define migration and transformation approaches using recognised frameworks including 7Rs
  • Provide architectural guidance across modernisation and software development initiatives
  • Collaborate with architects, engineers and delivery teams to ensure successful implementation
  • Contribute to service development, sales enablement content, case studies and solution accelerators

What We're Looking For

Essential

  • Experience in solution architecture, software development or technical consulting
  • Strong understanding of Microsoft Azure and modern cloud application architectures
  • Knowledge of application modernisation strategies and migration approaches
  • Experience with containers, APIs, serverless architectures, PaaS services and DevOps practices
  • Ability to translate technical concepts into clear business-focused recommendations
  • Experience engaging with customers, stakeholders and technical teams
  • Strong communication, presentation and solution design skills
  • Ability to work across multiple customer engagements simultaneously

Desirable

  • Experience delivering cloud transformation or digital modernisation programmes
  • Knowledge of application assessment and portfolio analysis methodologies
  • Experience building technical proposals and participating in pre-sales activities
  • Familiarity with enterprise application environments and legacy modernisation challenges
  • Exposure to hyperscaler platforms and emerging cloud-native technologies
  • Desire to progress into a lead architecture or solutioning role

Why This Opportunity Stands Out

  • Blend of architecture, consulting and hands-on technical engagement
  • Significant customer exposure and influence on strategic technology decisions
  • Opportunity to work across complex cloud transformation and application modernisation programmes
  • Exposure to modern Azure services, cloud-native development and evolving industry best practices
  • Ability to shape service offerings and contribute to practice growth
  • Clear progression towards lead architecture and solution leadership responsibilities

At Telefónica Tech, we believe inclusion is the bridge that empowers everyone to be their authentic selves. We celebrate and respect our differences because diversity drives innovation and makes us stronger.

Be yourself with us, and feel that you belong.

We welcome applicants from all backgrounds and identities regardless of age, disability, gender reassignment, marital or civil partnership status, pregnancy or maternity, race, religion or belief, sex, and sexual orientation.

We are also committed to equity, accessible hiring practices, and creating an inclusive culture through many means including TogetHer (Women's network) and our Employee Resource Groups which include Diversity and Inclusion, Telefónica Tech Pride, Neurodiversity, ELEVATE (African and Caribbean heritage network), and Sustainability.

We don’t believe hiring is a tick box exercise, so if you feel that you don’t match the job description 100%, but would still be a great fit for role, please get in touch.

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