Senior C# Engineer Typescript, Lambda, API Gateway, SQS, SNS
- Hiring Organisation
- Smart Sourcer Limited
- Location
- City of London, London, United Kingdom
- Employment Type
- Contract
- Contract Rate
- From £700 to £800 per day
skills, without being a security expert, youll ideally have some experience of AWS Cognito, AWS IAM and some Typescript. What Youll Bring: Senior / Staff-level backend mastery in C# and .NET 9 / 10 , capable of architecting and leading distributed REST microservices at scale. Advanced AWS serverless … privilege design, cross-service auth patterns, and secure-by-default access controls. Some Hands-on experience with AWS Cognito : user pools, identity pools, OAuth2 / OIDC flows, JWT validation, token lifecycles, and integrating Cognito-backed auth into API Gateway and Lambda. Data expertise across Aurora MySQL and DynamoDB: schema ...