Senior Payments Platform Engineer

• Experience with multi-cloud or cloud-agnostic platform layers in addition to AWS.
• Platform engineering or developer experience (DevEx) focus — internal tooling, golden paths, and self-service infrastructure.
• Experience with Solana or EVM blockchain infrastructure (nodes, RPC endpoints, validator operations).
• Hands-on experience with a policy-as-code tool (OPA, Sentinel) for guardrails on infrastructure provisioning.
• FinOps certification or deep cost engineering background in a high-throughput payments environment.
• Experience with HSMs or dedicated key management hardware for PCI-scoped systems.
• Strong scripting/automation background in Python, Go, or Rust for tooling and platform utilities.
• Crypto/web3 infrastructure experience — running nodes, managing hot/cold wallet infrastructure.

• Cloud: AWS (primary) — EC2, EKS, ECS, RDS Aurora PostgreSQL, ElastiCache Redis, MSK Kafka, SQS, SNS, S3, Lambda, API Gateway, KMS, Secrets Manager, CloudWatch, WAF, Shield
• IaC: Terraform
• CI/CD: GitHub Actions
• Containers: Docker, Kubernetes (EKS)
• Observability: OpenTelemetry, CloudWatch, Grafana/Prometheus
• Languages (platform tooling): Rust, Python, Bash
• Blockchain: Solana (programs, RPC nodes, wallet infrastructure)

• We work in person (London)
• The pace is intense
• Expectations are high and impact is immediate

Recruiter / HR Call > Founder / CEO Interview > Technical Interview 1 >Technical Interview 2 (CTO)