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Thought Machine is building modern cloud-native banking infrastructure to replace legacy systems at the world's largest financial institutions. As a Senior Site Reliability Engineer, you'll be part of an elite, globally distributed SRE team based in London, responsible for the mission-critical production infrastructure powering Core Banking and Payments platforms for major banks.
You'll own multiple high-impact responsibilities: supporting product engineering teams in designing fault-tolerant, scalable applications through design reviews and RFCs; executing department strategies around disaster recovery, backup, redundancy, and capacity planning; participating in a global on-call rotation to identify and fix bottlenecks in SaaS customer environments; and maintaining production systems hosting Vault products. You'll drive the evolution of SaaS products by defining reliability features, implement and regularly test disaster recovery strategies, maintain high-quality documentation and runbooks, and mentor team members in both technical skills and product knowledge.
The role requires a track record of delivering high-impact projects with focus on long-term scalability, ensuring human intervention scales sub-linearly with growth. You should have deep expertise in either Python or Golang (having executed significantly sized projects), Kubernetes or container orchestration, automation/configuration management tools (Terraform, Puppet, Chef, Ansible), and extensive AWS or GCP experience. Additional expertise in database administration, networking, observability tools (Prometheus, Jaeger), or automation infrastructure is highly valued. You're a high-agency individual who can independently drive projects to completion while effectively delegating to team members.
Thought Machine has grown to 550+ employees across London, New York, Singapore, Sydney, and Lisbon, raised £500m+ from top-tier investors including JPMorgan Chase, Standard Chartered, and Temasek, and is recognized as one of Europe's fastest-growing companies with exceptional workplace culture and generous equity packages.
