Infrastructure Software Engineering – Platform & Build

Highlights

• Build the core platform powering Fractile's AI inference chips and systems.
• Scale mission-critical systems enabling fast, reliable shipping org-wide.
• Help unlock thousands of tokens per second for frontier AI models.

What they offer

• Meaningful equity and ownership
• Private Medical, Dental and Vision
• Contributory Pension
• 25 days holiday plus bank holidays
• Life and Critical Illness Insurance

Ideal candidate

Platform-minded engineer with SRE instincts who loves reliability, developer productivity, and systematic debugging. Thrives on variety across hardware and software and takes pride in building foundations others rely on.

Requirements

• 5+ years in software, platform, or infrastructure engineering
• 5+ years hands-on experience with CI/CD for large-scale products, including monitoring, debugging performance and resolving pipeline failures at scale
• 3+ years working with build systems, preferably modern cross-language build systems such as Bazel, Buck, Pants, Please, etc.
• Experience with infrastructure as code (Terraform / OpenTofu, or Pulumi)
• Experience with monitoring and observability tooling (Prometheus, Grafana, or similar)
• Working knowledge of DevOps / SRE principles: SLOs, alerting design, incident management, and on-call practice
• Strong proficiency in Python, Go or Rust with a track record of shipping well-tested, maintainable developer tooling