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Telefónica Tech

Senior Application Engineer

Remote

London, United kingdom

Senior

Full Time

04-12-2025

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Skills

Go CI/CD DevOps Test Agile methodologies Networking Architecture Application Architecture Programming Azure AWS Software Development cloud platforms Agile GCP CI/CD Pipelines

Job Specifications

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, Workplace Services 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: Advanced Solution & Managed Service Provider Program

Job Description

Senior Application Engineer / Developer

Do you want to build AI and cloud-native applications that make customers go wow?

Do you want to test the limits of software delivery, AI engineering, and application patterns?

Do you want to build intelligent applications that no one has thought about?

If so, this role is for you. We are searching for an application engineer or developer who naturally wants to get hands-on to build AI and cloud-native applications, pushing the limits for what is technically possible.

Key Responsibilities:

Build, test and deploy modern applications
Reimagine software delivery in the age of AI and cloud
Test AI code generation to ensure it works correctly

Skills / Experience

Full-stack software engineering experience, designing, building and operating modern applications
Hands-on expertise with a tech stack consisting of modern programming languages and cloud platforms
Proficiency in modern software development practices, including Agile methodologies, DevOps, and CI/CD pipelines

Key Words:

Cloud Modernisation - Cloud Modernization - Application Architect - Full Stack Engineer - Application Modernisation - AppMod - Application Engineer - Software Architect - Cloud - Azure - AWS - GCP - Application Architecture - Application Developer

Additional Information

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 a role, please get in touch.

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.

About the Company

Telefonica Tech is a specialist provider of integrated technology solutions, with an end-to-end portfolio including Cyber Security, Cloud, Data & AI, Business Applications and Modern Workplace solutions. We're not just a technology company. We're an extension of your business. We drive secure digital enablement and help solve our customers' most complex business challenges, accompanying them on their digital transformation journey as a trusted partner. We work together to create positive impact for businesses and the wider ... Know more