CareerPlan

Security Engineer

London, England, GBFull-time2026-10-09 → 2026-11-10

Core

Build and run security platform services and APIs to authenticate applications, AI agents, and users, supporting authorization with scoped short-lived credentials.

Role type

Senior Security Engineer (Platform Engineering)

Builds

Policy engine, authentication APIs, and short-lived credential issuance infrastructure for AI agents and applications.

Domain

Financial services / AI security / Identity & Access Management

Required skills

Python, Kubernetes, Linux, containerization, authentication/authorization (OIDC/OAuth, Azure AD/Entra ID), secrets management (Vault), infrastructure-as-code (Terraform, Ansible, Helm), GitOps, observability (ELK, Prometheus, Grafana)

Preferred skills

Kubernetes network policies and pod security standards, policy engines (OPA/Rego, Kyverno, Cedar, OpenFGA, SPIFFE/SPIRE), API design (REST/gRPC), network security controls (WAF, segmentation, TLS, egress filtering)

Responsibilities

Design, build, and operate security platform services and APIs; write and maintain policy-as-code; integrate platform with identity providers and secrets management; run services to production standards with on-call support; provide Python APIs to onboard application teams and AI-agent developers; build logging, metrics, alerting, and SIEM detection rules.

Seniority

Senior, hands-on IC