Mitch Garnaat
Principal Software Engineer at Amazon Web Services
Rochester, New York Metropolitan Area United States
Summary
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Rockstar
Top expert inAWS Cloud Computing and Machine Learning Development
Mitch Garnaat is a Principal Software Engineer with 14 years of experience and the creator of boto, botocore, and the AWS CLI—foundational open-source tooling in the AWS Python ecosystem. He specializes in SDK and CLI internals, from authentication schemes (SigV2/SigV4) and response parsing to XML payload handling and refactors that improved testing and code organization. Mitch also contributes to the AWS CDK and jsii, enhancing Python support, initialization templates, and cross-platform runtime features like synchronous callbacks and variadic argument handling. His work spans infrastructure-as-code examples for ECS, Fargate, Lambda, and Step Functions, reflecting a practical focus on deployable cloud patterns. He has a knack for solving subtle production edge cases—Windows path conversions and environment-driven runtime behaviors—underscoring a commitment to robust, developer-friendly tools.
15 years of coding experience
Stackoverflow
45,028reputation
4.3mreached
428answers
1question
linux
top-1%
amazon-ec2
top-1%
amazon-web-services
top-1%
amazon-dynamodb
top-1%
python
top-1%
amazon-s3
top-1%
Github Skills (57)
json10
botocore10
typescript310
boto10
aws-cdk10
amazon-ecs10
python10
commandline-interface10
command-line-interface10
aws-lambda10
typescript10
user-authentication10
linux10
authentication10
cloud-infrastructure10
Programming languages (7)
Github contributions (5)
aws-samples/aws-cdk-examples
Apr 2019 - Sep 2019
Example projects using the AWS CDK
Role in this project:
Cloud Engineer / Infrastructure Engineer
Cloud Engineer / Infrastructure EngineerContributions:6 commits, 11 PRs, 6 pushes in 5 months
Contributions summary:Mitch primarily contributed to the development and modification of AWS CDK examples, focusing on infrastructure-as-code. Their work included creating, updating, and refactoring CDK stacks across various AWS services, such as ECS, Fargate, Lambda, and Step Functions. The contributions demonstrate a focus on deploying and configuring cloud resources using the CDK framework. The user also added examples related to containerization and networking within the AWS ecosystem.
cloud-infrastructureexample-projectsawscdkaws-cdk
boto/botocore
Nov 2012 - Nov 2015
The low-level, core functionality of boto3 and the AWS CLI.
Role in this project:Back-end Developer
Back-end DeveloperContributions:378 commits, 4 PRs, 6 comments in 3 years
Contributions summary:Mitch primarily worked on the core functionality of the `botocore` library. Their contributions include implementing and modifying authentication methods (SigV2, SigV4), response parsing, and parameter handling within the AWS SDK. Additionally, the user refactored internal components, addressing issues with code organization and testing. This included the integration of XML payloads, as well as fixes to several bug reports that pertained to various functionalities related to the library's function.
aws-cliboto3awslow-levelcli
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