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About me

Full-time developer, part-time student, always curious.

I'm an ambitious software engineer and computer scientist who is always eager to learn and innovate. Right now I'm a Technology Developer Degree Apprentice at Barclays UK, working as a backend developer on an integration team in Group Technology Infrastructure Services. Java, Spring Boot, Apache Kafka and Ansible are my daily tools.

Alongside the day job I'm studying Digital & Technology Solutions (Software Engineering) at Manchester Metropolitan University, and running Mayer Digital, where I design and build websites that give small businesses and creatives a strong digital footprint.

Before Barclays I managed e-commerce and web development projects in the jewellery industry, working across Magento, Azure and WordPress. I've also built full-stack sites and AI tools such as Sentire, a real-time sentiment engine for r/WallStreetBets.

These days I'm most excited by the places where security, AI and quantum computing meet. I'm on the way to publishing my first paper on hybrid PQC–QKD security algorithms, and I write about quantum, security, AI, entrepreneurship and philosophy on Substack.

Stefan Mayer

Stefan Mayer

United Kingdom

Technology Developer Degree Apprentice at Barclays

Interested in

Quantum computingCyber securityAI & machine learningEntrepreneurshipPhilosophy

Experience & education

The journey

  1. First paper in progress · 2026Research

    Hybrid PQC–QKD security algorithms

    Independent research

    Researching hybrid schemes that combine post-quantum cryptography with quantum key distribution, so that communication stays secure even if one of the two layers is broken.

    Post-quantum cryptographyQKDSecurity
  2. 2024 – PresentDegree apprenticeship

    Technology Developer Degree Apprentice (BA2)

    Barclays UK

    Backend developer on an integration team within Group Technology Infrastructure Services.

    • Building and supporting backend integration services with Java and Spring Boot
    • Working with event streaming on Apache Kafka and automation with Ansible
    • Rotating through projects and learning opportunities across the bank, including Microsoft Azure
    JavaSpring BootApache KafkaAnsibleMicrosoft Azure
  3. 2024 – PresentFreelance

    Founder & Web Developer

    Mayer Digital

    A small web studio helping businesses and creatives build a robust digital footprint, from concept and design through launch and beyond.

    • Designed and built a portfolio site for pianist Luca Ambrosino with YouTube and Bandcamp embeds
    • Tailored websites that reflect each client's brand, with hands-on support from concept to launch
    HTMLCSSJavaScriptBootstrapTailwind CSSWordPress
  4. 2024 – PresentEducation

    Digital & Technology Solutions (Software Engineering), BSc degree apprenticeship

    Manchester Metropolitan University

    Studying for my degree alongside full-time work at Barclays, with a focus on software engineering.

    Business SystemsDigital Technology in Organisations and SocietyEnterprise ProgrammingFull Stack Web DevelopmentNetworking & SecurityProject ManagementSoftware DesignSoftware Testing and Quality Assurance
  5. Until 2024Employment

    E-commerce & Web Projects

    Jewellery industry

    Managed e-commerce and web development projects, working across Magento, Azure and WordPress.

    MagentoMicrosoft AzureWordPress

Manchester Metropolitan University

What I'm studying

Digital & Technology Solutions (Software Engineering), BSc degree apprenticeship

01

Business Systems

02

Digital Technology in Organisations and Society

03

Enterprise Programming

04

Full Stack Web Development

05

Networking & Security

06

Project Management

07

Software Design

08

Software Testing and Quality Assurance

Certifications

Always learning

Artificial Intelligence FundamentalsIBM SkillsBuild · 2024
Project Management FundamentalsIBM SkillsBuild · IPMA · 2024
Cybersecurity EssentialsCisco Networking Academy · 2024
The Web Developer Bootcamp 2023Udemy · Colt Steele · 74 hours · May 2023Verify