Senior Platform Engineer

About the role

Key responsibilities:

• People & Conduct
• Demonstrate a mature growth mindset, routinely seeking feedback and acting on it to drive improvement.
• Model ownership and accountability, supporting peers in developing the same behaviours.
• Facilitate constructive debate and foster an inclusive, psychologically safe environment.
• Show resilience and adaptability in dynamic and challenging situations
• Product
• Understand internal developer needs and platform strategy, using insights to drive technical decisions.
• Use platform metrics and developer feedback to inform conversations, challenge assumptions, and propose improvements.
• Evaluate platform approaches with commercial awareness, identifying cost‑efficient infrastructure options.
• Clearly articulate platform value and enable engineering teams to understand and adopt it.
• Delivery
• Break down large platform initiatives into incremental, testable slices that unlock early learning and value.
• Contribute to accurate estimation and planning, highlighting risks and dependencies.
• Promote agile ways of working and challenge behaviours that hinder flow and predictability.
• Communicate clearly, simplify complex platform concepts, and produce golden path documentation so teams can self-serve.
• Engineering Practices
• Write high‑quality, maintainable infrastructure-as-code and platform tooling aligned to ENSEK standards (e.g. Terraform, Crossplane, Helm).
• Contribute to platform architectural discussions; propose cloud-native design options with strong reasoning, including EKS, GitOps, and self-service patterns.
• Apply test‑first approaches and contribute to robust testing strategies for platform tooling and infrastructure changes.
• Improve observability, alerting, and operational practices across platform services to ensure reliability for all engineering teams.
• Advocate secure coding and infrastructure practices, including least-privilege access and supply chain hygiene, ensuring compliance with ENSEK’s policy.
• Engineering Community
• Share platform knowledge widely, contribute to guilds, and elevate engineering and infrastructure standards.
• Mentor junior engineers, support skill development across the team, and help onboard engineering teams onto platform capabilities and golden path tooling.
• Participate in platform and community improvement initiatives, champion golden path adoption, and uphold ENSEK engineering values.

Experience required:

Company Benefits

• 25 days’ holiday + bank holidays
• Option to buy or sell 5 extra annual leave days per year
• Vitality Health Insurance, including private healthcare, virtual GP access, mental‑health support and wellbeing perks (50% off gym memberships -Virgin Active, Nuffield, PureGym)
• Pension with 5% matched contribution
• Regular team‑wide and company‑wide events
• 2 volunteering days per year to give back
• Remote‑first working environment with offices in London and Nottingham