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Service Designer Analyst

Fecha: 18-nov-2022

Ubicación: MADRID, ES

Empresa: Telefonica S.A.

Do you want to be a part of the built of our Network as a Service platform that will be used across the Telefonica group?


Join the Network Platform team in group CTIO as a Junior network service designer. The role based in Madrid (Spain) will be focused on designing, developing and testing the network capabilities and services to be exposed to our customers.


As a junior network service designer you will be in charge of defining the solutions to expose network enablers as APIfied services that abstract telecom network complexity to non-telco developers and application providers, in accordance with the objectives of the Network as a Service Program (NaaS) in Telefonica.


The role will involve gaining a deep understanding of key network platforms prone to exposure e.g. PCF, NEF, IMS, and the platforms used to materialize such exposure through microservices, with objectives including design, technology selection, solution adaptation and test execution.


The role involves communication and coordination with Telefonica Operating Businesses (Brazil, Spain, UK and Germany) for the execution of the corporate strategy.



The objectives of the position offered are:

  • Identify and prioritize network capabilities that can be exposed

  • Define and exposure logic of each of the Network APIs and the middleware architecture component that is required.

  • Define and design architecture solutions to expose each one of the network capabilities through APIs, including integration mechanisms across the different layers of the architecture from Developer Marketplaces across NaaS layers to the lower Network layers.

  • Market evaluation and testing for products and vendors applicable to API design and exposure.

  • Create new service level APIs and provide contributions to industrial fora or standardization bodies in charge of Network APIs.

  • Analyze new APIs from the industrial fora to map to existing network capabilities.

  • Elaborate test plans and execute them to test end-to-end the Network APIs in laboratories and production environments.



MsC in Computer Science, Telecommunication, Networking or any related fields.



  • Ability to work in a multinational and multicultural environment
  • Team working and customer focus
  • Strong verbal, visual, and written communication skills
  • Capability to understand business requirements and convert into technological architectures
  • Capability to interact with providers and integrators to run evaluation processes
  • Capability to communicate at different levels (directors, engineers, …) to disseminate architecture propositions
  • Project management capabilities to keep track of transformation programs in Operations
  • Dynamic attitude, self-learner and proactive.



  • Strong knowledge in the area of core network and platforms, especially 4G and 5G mobile core network for data and communications.
  • Strong knowledge in the area of APIs: REST, SOAP, YAML, SWAGGER,
  • Knowledge of microservices containerized applications: K8s Dockers,
  • Knowledge of microservice integration architectures: service mesh, Istio, Kafka, API GWs,
  • Knowledge of public cloud services and cloud architecture
  • Capability to understand network architectures and protocols
  • Capability to define ATPs/test plans and experience in testing in lab environment.
  • Knowledge of basic network testing tools: iPerf, Nperf, etc.



2 years + experience in service development

  • Experience on following activities will be valuable:

    • Telco networks:  core network architecture, enablers protocols in 4G and 5G.

    • Containers based technology (Kubernetes) and microservices integration.

    • Development of application based on http-based APIs.



  • English and Spanish languages are mandatory
  • Portuguese and German will be considered


If you join Telefónica

You join almost 100 years of history, you join a team of 106 nationalities present in more tan 35 countries. You join a team that works to connect people wherever they are. We are leading the digital revolution with the enthusiasm of the first day in all our businesses, creating the best digital ecosystem for our clients: network, IoT, cloud, security, innovation etc. Here, at Telefónica you count with everything you need to be the best you. We need people like you that wants to take this challenge of creating the Telefónica of tomorrow.

Telefonica is committed to the new working ways. Under our proposition “Disconnect to Reconnect” we have applied the Digital Disconnection.



We strongly believe diverse and inclusive teams become more innovative and they achieve improved results. Telefonica aims to promote and guarantee a place for everyone, just the way we are: gender, age range, sexual orientation and/or identity, culture, creed, disability or any other personal condition.