eSIM & Subscriber Identity Specialist

Join a unique telecoms research environment focused on the technologies that underpin subscriber identity, authentication, and connectivity across modern mobile networks. As a specialist in eSIM and subscriber identity technologies, you'll bring expertise in areas such as eUICCs, Remote SIM Provisioning, GSMA standards, subscription management platforms, JavaCard, GlobalPlatform, and the wider ecosystem that enables secure access to telecommunications networks.

You'll work alongside experts in telecoms, cybersecurity, privacy, and hardware, applying your knowledge to investigate how subscriber technologies operate in real-world environments and how they are evolving to meet future industry demands. Your insights will help shape research activities, guide technical investigations, and contribute to discussions that inform government, industry, and academia.

Working in a collaborative and multidisciplinary team, you'll have the opportunity to broaden your expertise into adjacent areas such as security, privacy, and telecoms resilience, while continuing to deepen your specialist knowledge. With access to carrier-grade telecom environments and the freedom to experiment, test, and explore complex systems, you'll play a key role in advancing understanding of the technologies shaping the future of connectivity.

This is an exciting opportunity for someone who is passionate about telecommunications, curious about emerging technologies, and eager to contribute to cutting-edge research with real-world impact.hows this 

Successful Applicants must be able to commute to the UKTL offices in Birmingham at least twice a week

We strive to offer a great work life balance - if you are looking for full time, part time or flexible options, we will try to make this work where business possible. This will be dependent on the kind of role you do and part of the business you work in.

• Expertise in SIM, UICC, eSIM, eUICC and related subscriber identity technologies
• Experience working with remote SIM provisioning ecosystems
• Understanding of eSIM profile structure, creation, personalisation, deployment and lifecycle management
• Knowledge of JavaCard, GlobalPlatform, secure element technologies or related application environments
• Familiarity with subscriber authentication, identity management, and provisioning workflows within mobile networks
• Experience investigating complex technical problems and translating findings into clear technical outputs
  
• Confidence working within Linux-based environments and learning new tools and technologies when required
• Ability to work independently while contributing effectively within multidisciplinary teams
• Curiosity about how complex telecommunications systems operate and an interest in exploring adjacent areas such as security, privacy and wider telecoms research

You do not need to be a security specialist to apply for this role. However, an interest in understanding how technologies can fail, be misused, or be improved would be valuable. This position offers the opportunity to work alongside cybersecurity researchers while expanding your expertise into new domains.

Please note: Applications will be reviewed, and interviews conducted throughout the duration of this advert therefore we may at any time bring the closing date forward. We encourage all interested applicants to apply as soon as practical.

We actively recruit citizens of all backgrounds, but the nature of our work in this specific area means that nationality, residency and security requirements are more tightly defined than others. To work in this role, you will need to hold an SC clearance with no restrictions. You are welcome to apply without already holding SC clearance; however, you will not be able to start in post until the clearance has been successfully granted.

• UKTL is building leading edge Telecoms testing facilities to keep our telecommunications networks safe, accelerate the roll-out of new technologies, and grow our world leading telecoms sector to maintain resiliency and security. 

  Read more about UKTL here!

  Successful candidates will join a state-of-the-art facility and be supporting the team conducting testing and research on the latest technologies and innovations in the industry. You will work alongside our infrastructure and Cybersecurity professionals to ensure that the UK’s world class Telecoms infrastructure grows in a resilient and secure manner underpinning growth in other industry sectors.

  As a trusted and independent national capability, UKTL interacts with standards bodies, Academia, and Government Departments as well as Communications Service Providers and equipment vendors.

  The National Physical Laboratory (NPL) is a world-leading centre of excellence that provides cutting-edge measurement science, engineering and technology to underpin prosperity and quality of life in the UK. Find out more about what it is like working here - The measure of us - Overview

  NPL and DSIT have strong commitments to diversity and equality of opportunity, and welcome applications from candidates irrespective of their background, gender, race, sexual orientation, religion, or age, providing they meet the required criteria. Applications from women, disabled and black, Asian and minority ethnic candidates in particular are encouraged. All disabled candidates (as defined by the Equality Act 2010) who satisfy the minimum criteria for the role will be guaranteed an interview under the Disability Confident Scheme. 

  At NPL, we believe our success is a result of the diversity and talent of our people. We strive to nurture and respect individuals to ensure everyone feels valued by treating everyone on the basis of their own individual merits and abilities regardless of their own or perceived identity, as part of our commitment to diversity & inclusion, we ensure we’re creating an environment where all our colleagues feel supported and welcome. More about this on our Diversity & Inclusion page.

  We offer a wealth of above industry standard benefits, such as enhanced pension scheme, flexible working, and more that can be found here rewards, benefits and recognition. Our values are at the heart of what we do, and they shape the way we interact, develop our people and celebrate success. To ensure everyone has an equal chance, we’re always willing to make reasonable adjustments to the recruitment process. If you would like to discuss, please contact us.