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Head of Platform

xelix.com Logo

Xelix

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Location:
United Kingdom , London

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Category:
IT - Administration

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Contract Type:
Not provided

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Salary:

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Job Description:

At Xelix, we work with some of the world’s largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate – moving from manual processes to automated, intelligent workflows. Xelix is a fast-paced scale-up – things move fast and expectations are high. We raised our Series B with Insight Partners in June 2025 and are expanding aggressively. We have a team of 150 talented people pulling together to achieve our goals. Everyone is trusted to take ownership, move fast and have a meaningful impact. We prioritise personal and professional growth, keep things fun, and love to celebrate a milestone together. In this role you’ll grow, be challenged and help shape the future of Xelix. If you’re excited about building something special with us, we’d love to hear from you.

Job Responsibility:

  • Own the long-term platform and infrastructure strategy
  • Design and evolve cloud architecture to support scale, resilience, and performance
  • Set standards for infrastructure, CI/CD, environments, and observability
  • Make architectural decisions and trade-offs
  • Provide infrastructure for the development team to code, test and deploy efficiently
  • Advise during design sessions to help engineers pick the right solutions for projects
  • Own production reliability, uptime, and incident response
  • Define and enforce SLAs and SREs
  • Lead incident response and post-incident reviews
  • Ensure monitoring, alerting, and on-call practices are effective and sustainable
  • Partner closely with the Information Security Officer on cloud security and compliance
  • Own platform-level security decisions and risk mitigation
  • Ensure secure-by-design infrastructure and access controls
  • Support compliance initiatives (SOC 2, ISO:27001)
  • Lead and mentor the DevOps team including DevOps engineers, IT Support and an Information Security Officer
  • Provide technical coaching and decision support to the DevOps team
  • Manage relationship with AWS and other vendors
  • Own cloud cost visibility and optimisation
  • Balance performance, reliability, and cost trade-offs
  • Introduce tooling and practices that improve developer efficiency

Requirements:

  • 8+ years in infrastructure, platform, or SRE roles
  • AWS Certified Solutions Architect – Professional
  • Prior experience scaling production systems in a growing company
  • Ability to operate production systems under pressure
  • Deep hands-on experience with the AWS cloud platform
  • Strong background in reliability, observability, and incident management
  • Experience leading or mentoring engineers
What we offer:
  • 27 days of annual leave (including 3 days Christmas closing) which increases up to 3 days based on tenure, with the option to roll over, buy or sell up to 3 days
  • Hybrid working with one day a week from our dog-friendly Hoxton office
  • On-site gym and cycle to work scheme
  • Employee discount at over 100 retailers
  • Comprehensive private medical & dental cover with Vitality
  • Enhanced parental leave pay
  • Learning & development culture – £1,000 personal annual budget
  • We’re carbon-neutral and are working towards ambitious carbon reduction goals
  • Lots of team socials & activities
  • Annual team retreat

Additional Information:

Job Posted:
March 04, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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