Senior Software Engineer (AI)

Location: London, United Kingdom

Company

hirify.global develops and deploys responsible AI solutions for government, finance, retail, energy, life sciences, defence, and frontier technology organisations.

What you will do

• Lead technical scoping and architectural decisions for high-impact machine learning systems and frontier AI model capability testing.
• Design, build, and deploy production-grade ML software, tools, and scalable infrastructure.
• Define engineering standards and best practices for deploying machine learning systems at scale.
• Collaborate with engineers, data scientists, product managers, commercial teams, clients, partners, and frontier labs.
• Advise customers on complex technical concepts and translate them into actionable strategies.
• Mentor junior engineers and contribute to the engineering culture and technical direction.

Requirements

• Significant experience building and deploying secure, scalable LLM applications, including multi-agent harness tooling and AI safety evaluation procedures.
• Strong understanding of the full machine learning lifecycle and experience operationalising models with TensorFlow or PyTorch.
• Deep software engineering expertise and strong Python skills.
• Hands-on experience with AWS, Azure, or GCP, including cloud architecture, infrastructure management, and end-to-end cybersecurity.
• Extensive experience with Docker and Kubernetes for building and managing applications at scale.
• Strong communication skills, ownership, autonomy, and experience guiding technical teams and senior non-technical stakeholders.

Culture & Benefits

• Work on high-stakes AI safety and national security missions focused on secure, trustworthy, and responsible AI.
• Collaborate with government organisations, major technology companies, and frontier AI labs.
• Join a diverse, intellectually curious team focused on measurable positive impact.
• Part-time hours may be discussed.
• AI tools may be used for research and interview preparation, but not to generate answers during live interviews.

Hiring process

• Talent Team screen: 30 minutes.
• Pair programming interview: 90 minutes.
• System design interview: 90 minutes.
• Commercial interview: 60 minutes.