Platform Engineer — AI-Powered Cloud & Infra

Cogna; Greater London; Hybrid; GBP 90,000 - 140,000; Full time

Benefits offered by this job

Competitive salary

Share option plan

25 days annual leave

Private healthcare

Private gym access

Job summary

Cogna is hiring a Platform Engineer to design, build, and maintain the foundation our teams rely on daily. You will join the Platform team, supporting security, core infrastructure, and DevX across Cogna.

Your focus will be shaping the internal platform and cloud architecture that powers all engineering teams and underpins our product. We treat the platform as an internal product: defining APIs, abstractions, and guardrails that let teams ship quickly and safely.

Qualifications

• Proven production-grade coding in Python, TypeScript or Go

Responsibilities

• Design and evolve cloud infrastructure and internal platform (Azure/Kubernetes-based) with service-to-service communication and workflow orchestration layers.
• Make architectural decisions shaping how Cogna builds and operates software.
• Contribute to Go/Python/TypeScript codebase and build/deploy pipelines (Bazel, Terraform, CI/CD).
• Implement security controls, IAM, and network policies across Kubernetes environments.
• Improve observability with logging, tracing and alerting (Datadog).

Job description

Cogna is hiring a Platform Engineer to design, build, and maintain the foundation our teams rely on daily. You will join the Platform team, supporting security, core infrastructure, and DevX across Cogna.

Your focus will be shaping the internal platform and cloud architecture that powers all engineering teams and underpins our product. We treat the platform as an internal product: defining APIs, abstractions, and guardrails that let teams ship quickly and safely.