Portrait of Kieran Mitchell-Jones

Kieran Mitchell-Jones

Senior Software Engineer @ Vitesse | .NET, AKS, Azure

Cardiff, United Kingdom

About

As a Senior Software Engineer at Vitesse, I work with a team of engineers to design and deliver scalable fintech solutions that enable high-value global payments. I utilise the .NET platform to build reliable services, improve performance, and develop features suited to a fast-paced environment.

I have over 8 years of professional experience in software engineering, having previously worked at ASOS, where I delivered e-commerce systems supporting millions of customers.

I graduated with a First Class Honours Bachelor's degree in Computer Science from Cardiff University, gaining a strong foundation in programming, data structures, algorithms, and software design.

I'm passionate about learning new technologies, solving real-world problems, and collaborating with other engineers to build high-quality software.

Experience

  1. Senior Software Engineer

    Vitesse Jan 2026 – Present · 7 mos
    • Led migration of SWIFT payment processing to a new banking provider, delivering significant monthly cost savings
    • Engineered new payment capability enabling US cross-border payments via SWIFT
    • Drove integration with a new banking partner, establishing a backup payment rail for US clients
    • Promoted AI adoption across the business as part of the AI Champions initiative
  2. Senior Software Engineer

    ASOS.com Aug 2024 – Jan 2026 · 1 yr 6 mos
    • Led, planned, and rolled out new technologies within the team, including migration to Azure SQL Hyperscale for scalability and performance improvements
    • Championed best practices as the Fundamentals Champion, leading meetings, planning PBIs, and liaising with external stakeholders
    • Conducted investigations into outages and inefficiencies to ensure a stable, efficient suite of applications
    • Mentored new engineers, providing guidance on team practices and projects
  3. Software Engineer

    ASOS.com Sep 2022 – Aug 2024 · 2 yrs
    • Collaborated with a small team to migrate monolithic solutions into scalable microservices with AKS
    • Provided support and planning for large-scale events critical to ASOS' business goals, such as Black Friday, with APIs supporting hundreds of requests per second
    • Pushed for existing solutions to be rewritten into a more maintainable, developer-friendly codebase
  4. Software Engineer

    Wealthify Mar 2019 – Sep 2022 · 3 yrs 7 mos · Penarth, UK
    • Played a key role in migrating a monolithic .NET Framework solution to a microservices architecture using .NET Core
    • Collaborated with cross-functional teams to implement full-stack solutions with .NET, HTML, JavaScript, and Flutter
    • Developed and maintained scalable applications using Azure-based solutions such as AKS
  5. Software Engineer

    Method4 Jul 2018 – Mar 2019 · 9 mos · Cardiff, UK
    • Led workshops for clients on technologies such as .NET, SSRS, and SharePoint
    • Mentored newer graduate engineers, providing guidance and support in their professional development
    • Pushed for adherence to good practices such as TDD, SOLID, and KISS
  6. Graduate Software Engineer

    Method4 Aug 2017 – Jul 2018 · 1 yr · Cardiff, UK
    • Developed expertise in Microsoft .NET technologies
    • Collaborated with team members to implement industry standards and best practices
    • Contributed to successful delivery of projects across a variety of clients

Projects

Education

Skills

Contact

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