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C# Backend Senior Engineer (London-based)
LondonSource: WhatJobs
£70,000–£110,000
Description
We are looking for a C# backend engineer to join the Authorization team. In this role, you will work on creating the Identity & Authorization Platform. You will build the authorization platform used across all products: SDKs, Policy APIs, authorization microservices, and identity services.
office remote United Kingdom
Requirements
5+ years of experience with C#/.Net
REST APIs
OAuth2, JWT, OIDC
Graph modeling
Distributed systems
Understanding of RBAC, ReBAC, ACL, and policy evaluation is a plus
Nice to have
Hands-on experience with Identity & Authorization
Experience with policy engines / policy-as-code
Experience with API Gateway, Kubernetes, Service Mesh
Neo4j
OpenFGA
SpiceDB
OPA
Redis
Kafka
Responsibilities
Develop Authorization SDKs
Evolve Policy APIs
Create and maintain Authorization microservices
Develop Identity services
Implement RBAC, ReBAC, ACL, and policy evaluation
Build graph relationships, permission inheritance, and delegated administration
Build integrations with API Gateway, AI Gateway, Kubernetes, and Service Mesh
Write automated tests, authorization regression suites, and performance tests
We offer
Projects for such clients as PayPal, Wargaming, Xerox, Philips, Adidas and Toyota
Competitive compensation that depends on your qualification and skills
Career development system with clear skill qualifications
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