Staff Software Engineer (ML QA)

Location: London, UK; applicants must have the legal right to work in the UK.

Company

hirify.global develops AI accelerator hardware, software, and systems infrastructure for next-generation artificial intelligence computing and is part of the SoftBank Group.

What you will do

• Build production-quality software that validates hirify.global’s machine learning stack, from frameworks through AI accelerator hardware.
• Architect scalable test frameworks and CI/CD pipelines running across simulators, emulators, and physical hardware.
• Create representative ML workloads, analyse execution results, and turn findings into improvements to testing and tooling.
• Shape software architecture and developer experience while improving testability, quality, security, and maintainability.
• Work across software teams through code and design reviews and contribute to upstream open-source projects.
• Mentor junior engineers, identify testing gaps, and drive technical improvements.

Requirements

• Strong Python skills demonstrated through designing, developing, and maintaining production-quality software.
• Software design and architecture skills for large, complex codebases, with a focus on testability and long-term maintainability.
• Experience building CI/CD pipelines and automated testing systems in Linux environments.
• Familiarity with C or C++, including the ability to read, debug, and reason about low-level code.
• Ability to mentor junior engineers and influence engineering practices through constructive feedback.
• Self-directed approach to solving complex problems, identifying gaps, and driving improvements.
• Legal right to work in the UK is required.

Culture & Benefits

• Flexible working to support work-life balance.
• Generous leave and up to 5% matched pension contributions.
• Phantom equity and flexible benefits, including optional private medical and dental cover.
• Designed office spaces for collaboration, free food, and an on-site barista.
• Income protection, life assurance, electric vehicle salary-sacrifice scheme, cycle-to-work scheme, health cash plan, and give-as-you-earn option.
• Inclusive environment welcoming diverse backgrounds, transferable skills, and engineers returning after a career break.