Senior & Staff Software Engineer, Continuous Integration (AI)

TL;DR

Senior & Staff Software Engineer, Continuous Integration (AI): Designing and building highly reliable, scalable CI infrastructure for an AI company, enabling hundreds of engineers to ship code safely and efficiently. Focus on optimizing automated testing, code quality assurance, and incident response automation across multiple cloud providers.

Location: London, UK. This role follows a hybrid policy, requiring staff to be in one of our offices at least 25% of the time. Visa sponsorship is available, with reasonable efforts to secure visas for successful candidates.

Salary: £325,000–£390,000 GBP annually.

Company

hirify.global is a public benefit corporation focused on creating reliable, interpretable, and steerable AI systems for the benefit of society.

What you will do

• Design and build highly reliable, scalable CI infrastructure for thousands of daily builds across multiple cloud providers.
• Develop intelligent test selection systems to reduce CI time while maintaining code quality.
• Build and improve incident response automation, including cluster load shedding and automatic recovery.
• Enhance test infrastructure reliability through flake detection, quarantine systems, and test state management.

Requirements

• 10+ years of relevant industry experience building and operating large-scale CI/CD systems.
• Deep experience with CI orchestration tools like Buildkite, Jenkins, or GitHub Actions.
• Experience with container orchestration at scale.
• Excellent communication skills and enjoyment in supporting internal partners.
• Strong focus on reliability and building resilient systems.
• Bachelor's degree in a related field or equivalent experience.

Nice to have

• Experience with merge queues and branch management at scale.
• Experience with test infrastructure, including intelligent test selection and flake management.
• Experience building CLI tools and developer-facing services.
• GitHub API and automation experience.

Culture & Benefits

• Work as a single cohesive team on large-scale, high-impact AI research efforts.
• Highly collaborative environment with frequent research discussions.
• Competitive compensation and benefits, optional equity donation matching.
• Generous vacation and parental leave, flexible working hours.
• Opportunity to contribute to steerable, trustworthy AI systems.