Head of Platform & AI Infrastructure

Mimica; City of Edinburgh; Remote; GBP 150,000 - 190,000; Full time

Benefits offered by this job

Stock options

Fully remote work

Remote setup stipend

Flexible schedules

Paid time off

Parental leave

Health & retirement benefits

Learning budget

Workaways / socials

Challenging, impactful projects

Job summary

Mimica is seeking a Head of Platform to lead a lean, high‑performing team that underpins every engineering squad. You will own the infrastructure strategy, cloud architecture choices, and the platform roadmap, shaping AI infra, MLOps tooling, and cost governance as we scale.

You will guide SREs, developers, and leaders across Product, ML, Security and Customer Success, grow the Platform team, and design deployment models for enterprise customers while maintaining reliability, cost discipline,

Qualifications

• Proven experience leading engineers, ideally including managing a team lead or other managers, and growing a team through hiring and sub‑team design.
• Solid hands‑on experience with Kubernetes, whether on GKE (preferred), EKS, OnPrem, or another managed Kubernetes service, across multiple regions.
• Proven experience with infrastructure-as-code as a core part of your platform, such as Terraform, and with ArgoCD or a comparable GitOps tool.
• A track record in owning reliability: setting SLOs and SLAs, running on‑call, leading incident response and postmortems, and testing disaster recovery.
• Observability experience with at least one major platform: Honeycomb, Datadog, Grafana, or New Relic.
• Comfortable with code, and able to review architecture and prototypes hands‑on.
• Experience owning an infrastructure budget, including cloud cost attribution, forecasting and cloud‑provider relationships.
• Experience designing deployment models for enterprise customers (single tenant, regional, data residency) and supporting security reviews and contracted SLAs.
• Background in startups or scale-ups: you are used to ambiguity, moving fast, and wearing multiple hats.
• Strong communication and collaboration skills: you can translate infrastructure complexity into clear language for engineers, executives and clients, and you know when to say no to bespoke requests.

Responsibilities

• Own Mimica's infrastructure strategy and the platform roadmap across all products, with the final call on cloud architecture, deployment models, infra vendors and platform standards.
• Lead and grow the Platform team: Manage existing Platform and SREs, plan headcount, set goals and metrics, and design the sub-team split (Cloud & Developer Platform, Reliability & SRE, AI Infrastructure) as the team grows.
• Own all AI infrastructure, including training and serving infra, MLOps tooling, Vertex and model access.
• Maintain Mimica’s DevEx culture - improve agency for product teams without compromising on compliance, create paved roads for deployments, and identify pain points as they arise.
• Own the infra and LLM budget, forecast and unit economics, including cost attribution by product and customer and the GCP relationship.
• Own reliability across engineering: SLOs, on‑call model, incident process, postmortems, DR testing and capacity planning.
• Own the CI/CD and developer platform, infrastructure-as-code (Terraform, ArgoCD, Crossplane) and observability standards (Honeycomb, Grafana, Loki).
• Work with the Platform PM, your peer, to define client needs and turn them into the platform roadmap.
• Act as the named technical owner for infrastructure in enterprise deals and security reviews, joining high-stakes sales and client calls and coaching your team to take the rest.
• Guide the craft mentors for infrastructure, MLOps and Python engineering, and set engineering-wide standards for reliability, on‑call, CI/CD and craft.
• Report monthly platform health and costs to leadership, and lead the infrastructure part of technical due diligence.

Skills

Leadership

Kubernetes

Infrastructure as Code

GitOps

SRE & Reliability

Observability

Communication

Budget management

Enterprise deployment

Startup experience

Cloud architecture

Tools

Terraform

ArgoCD

Crossplane

Honeycomb

Grafana

Loki

Datadog

New Relic

Job description

Mimica is seeking a Head of Platform to lead a lean, high‑performing team that underpins every engineering squad. You will own the infrastructure strategy, cloud architecture choices, and the platform roadmap, shaping AI infra, MLOps tooling, and cost governance as we scale.

You will guide SREs, developers, and leaders across Product, ML, Security and Customer Success, grow the Platform team, and design deployment models for enterprise customers while maintaining reliability, cost discipline,