Senior Platform Engineer

🚀 Senior Platform Engineer | AI & Cybersecurity | Up to £100,000 + Shares | London | Hybrid

Are you a platform engineer ready to take full ownership of maintaining and building infra and platform for a high-growth start-up?

This is a rare opportunity to join an early-stage, deep-tech company at the intersection of artificial intelligence and cybersecurity , working on technology that’s pushing the limits of how machines understand and analyse complex software systems.

You’ll be joining as the first platform Engineering hire , partnering closely with the ML and Product teams to design, build, and scale the infrastructure that powers advanced AI models.

🔧 What You’ll Be Doing

• Design, build, and operate Kubernetes-based platforms across AWS and additional cloud providers.
• Own and evolve our multi-cloud strategy, ensuring consistency, reliability, and security across environments.
• Build reusable platform primitives for networking, secrets, storage, ingress, observability, and CI/CD.
• Enable repeatable, automated deployments for SaaS, customer-managed, and air-gapped environments.

💡 What We’re Looking For

• Kubernetes: Production-grade clusters, networking, ingress, storage, RBAC, upgrades, and operations.
• Cloud: Deep AWS experience (EKS, IAM, VPC, EC2, S3, Load Balancing); multicloud patterns a strong plus.
• Infrastructure as Code: Terraform (or equivalent) for repeatable, auditable environments.
• CI/CD: GitHub Actions or similar; building pipelines for both SaaS and self hosted deployments.
• Containers: Docker/OCI, image build pipelines, registries, supply chain security.
• Observability: Prometheus, Grafana, ELK/OpenSearch, OpenTelemetry.

🌟 Why You’ll Love It Here

• Build something from the ground up - huge ownership and technical freedom
• Join a smart, curious team tackling truly unique technical challenges
• Competitive salary (£100,000)
• Equity options, pension scheme, and private health insurance
• Hybrid working – central London
• 25 days holiday + bank holidays

If you’re excited by the idea of shaping a Platform Engineering function in a cutting-edge AI startup and working on problems that most companies haven’t even begun to tackle , we’d love to hear from you.