--- title: "Sasha Tulchinskiy (@SashaTu) | Hashnode" description: "Building castles in the Cloud. Read the latest articles by Sasha Tulchinskiy on Hashnode." url: "https://hashnode.com/@SashaTu" --- @SashaTu # Sasha Tulchinskiy @SashaTu · Maryland, US · Joined June 2022 Building castles in the Cloud [Website](https://iq.aws.amazon.com/e/cloudcaptain) ### [A Curious Case of Amazon Cognito HTTP 500 errors](https://cloudcaptain.asail.cloud/a-curious-case-of-amazon-cognito-http-500-errors?utm_source=hashnode&utm_medium=feed) Our team was assisting a large client with the migration of on-prem applications to AWS and we chose to place these applications behind an Amazon Application Load Balancer (ALB), which was integrated with an Amazon Cognito User Pool with Azure Direct... 3 min read · [cloudcaptain.asail.cloud](https://cloudcaptain.asail.cloud/a-curious-case-of-amazon-cognito-http-500-errors?utm_source=hashnode&utm_medium=feed) [Jun 27, 2023](https://hashnode.com/posts/a-curious-case-of-amazon-cognito-http-500-errors/649ae86ad5ded1daf37ca6d4) ### [First Impression: Amazon Well-Architected Tool Profiles](https://cloudcaptain.asail.cloud/first-impression-amazon-well-architected-tool-profiles?utm_source=hashnode&utm_medium=feed) Introduction Support for workload "Profiles" in Amazon Well-Architected Framework Tool was first announced on June 13, 2023, with Amazon CLI support for this feature introduced in v.2.12.0 per CHANGELOG. I have been a big fan of Well-Architected Fram... 4 min read · [cloudcaptain.asail.cloud](https://cloudcaptain.asail.cloud/first-impression-amazon-well-architected-tool-profiles?utm_source=hashnode&utm_medium=feed) [Jun 21, 2023](https://hashnode.com/posts/first-impression-amazon-well-architected-tool-profiles/6492fbb639c5bd8235ee0822) ### [Build Your Own AWS Innovation Lab](https://cloudcaptain.asail.cloud/build-your-own-aws-innovation-lab?utm_source=hashnode&utm_medium=feed) Introduction As an AWS practitioner, I need a place to experiment with new AWS services, Infrastructure-as-Code scripts and build small projects - let's create one that satisfies the following needs: Minimal costs during periods of no Lab activities... 7 min read · [cloudcaptain.asail.cloud](https://cloudcaptain.asail.cloud/build-your-own-aws-innovation-lab?utm_source=hashnode&utm_medium=feed) [Jun 15, 2023](https://hashnode.com/posts/build-your-own-aws-innovation-lab/648b4a374e2b5515a715bbf4) ### [Understanding Amazon Cognito Federated Identity Providers](https://cloudcaptain.asail.cloud/understanding-amazon-cognito-federated-identity-providers?utm_source=hashnode&utm_medium=feed) Behind the scenes of Amazon Cognito federation with a SAML Identity Provider 5 min read · [cloudcaptain.asail.cloud](https://cloudcaptain.asail.cloud/understanding-amazon-cognito-federated-identity-providers?utm_source=hashnode&utm_medium=feed) [Mar 27, 2023](https://hashnode.com/posts/understanding-amazon-cognito-federated-identity-providers/64220fcd46cb9f75a90cd2fc) ### [Bootstrapping an environment with Amazon CloudShell](https://cloudcaptain.asail.cloud/bootstrapping-an-environment-with-amazon-cloudshell?utm_source=hashnode&utm_medium=feed) What if you have to start from scratch? 4 min read · [cloudcaptain.asail.cloud](https://cloudcaptain.asail.cloud/bootstrapping-an-environment-with-amazon-cloudshell?utm_source=hashnode&utm_medium=feed) [Dec 1, 2022](https://hashnode.com/posts/bootstrapping-an-environment-with-amazon-cloudshell/63923be9924aae05d7b3cea0)