Stefan Olaru

Stefan Olaru

Stefan Olaru

38 followers

Cloud Architect & Developer. I specialize in AWS Serverless solutions and Event-Driven architectures. Sharing my learnings from helping startups build, launch, scale, and navigate tech challenges.

Debugging AWS SES templates

Feb 23, 20243 min read

Emails not reaching the inbox due to template Rendering Failure · AWS SES is extremely powerful but it's likely surpassed only by AWS Cognito in terms of...

Debugging AWS SES templates

Exporting RDS Snapshots to Athena using Step Functions

Nov 14, 20237 min read

A secure, efficient, and hassle-free way to run data analytics queries · A recent challenge I had on a project was enabling access to a production MySQL...

Exporting RDS Snapshots to Athena using Step Functions

Run Lambda functions with fixed IP

Mar 28, 20239 min read

How to run your AWS Lambda functions with a fixed IP up to 10x cheaper. · A Lambda function runs in its own container and when invoked, the external...

Run Lambda functions with fixed IP

Scalable webhook listeners in AWS

Mar 8, 20235 min read

Using the API Gateway - SQS integration to create scalable webhook listeners and validate the requests at the API Gateway level · Traditionally, when we...

Scalable webhook listeners in AWS

How to run a highly-available Typesense search in AWS

Dec 20, 202210 min read

Get a multi-node Typesense cluster up & running in minutes on AWS using infrastructure as code · Retrieving relevant search results blazing-fast is a...

How to run a highly-available Typesense search in AWS

Explain like I'm 5: AWS IAM

Dec 18, 20225 min read

Do you find AWS IAM User Groups, Policies, or Roles confusing? It's all about who can access what. · Amazon Web Services (AWS) Identity and Access...

Explain like I'm 5: AWS IAM