Jonathan Eskew
Software Engineer at Antithesis
Falls Church, Virginia, United States
Summary
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Rockstar🎓
Top SchoolJonathan Eskew is a software engineer with 11 years of experience building reliable back-end systems and cloud SDKs, currently at Antithesis after five years at Microsoft and prior engineering roles at USDS and AWS. He has deep expertise in cloud developer tooling and SDKs—contributing significant features and cross-browser crypto, cancellation tokens, and presigning support to the AWS JavaScript and PHP SDKs and improving DynamoDB data mapping. His open-source work spans high-impact projects like the modular AWS SDK v3, Guzzle HTTP client, and Azure Bicep, reflecting strengths in protocol handling, testing, and compiler/linter improvements. Jonathan pairs production-grade engineering with QA rigor, often adding integration tests and compatibility fixes for diverse runtime environments. Unusually for an engineer with a CS master’s, he also brings humanities-trained language skills from a BA and MPhil in French, which inform clear technical communication and documentation.
11 years of coding experience
17 years of employment as a software developer
Bachelor of Arts (B.A.), French, Bachelor of Arts (B.A.), French at Reed CollegeMaster of Philosophy, French and Comparative Literature, Master of Philosophy, French and Comparative Literature at Columbia UniversityMaster of Science, Computer Science, Master of Science, Computer Science at James Madison UniversityExchange Student, French Language and Literature, Exchange Student, French Language and Literature at Université Rennes 2
Italian, French, English
Stackoverflow
3,993reputation
587kreached
84answers
10questions
css
top-5%
css-position
top-5%
amazon-web-services
top-5%
amazon-dynamodb
top-5%
html
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json
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Github Skills (50)
unit-testing10
compatible10
amazon-cloudfront10
javascript10
bicep10
laravel-mix10
testing10
http10
typescript10
laravel10
browser-support10
psr-710
aws-sdk10
amazon-dynamodb10
type-system10
Programming languages (17)
Github contributions (5)
awslabs/dynamodb-data-mapper-js
Jul 2017 - May 2019
A schema-based data mapper for Amazon DynamoDB.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:131 commits, 85 PRs, 68 pushes in 1 year 11 months
Contributions summary:Jonathan contributed significantly to the DynamoDB data mapper for JavaScript. They focused on adding unit tests for the `BinarySet` class, enhancing the unmarshalling of data including custom and untyped fields, and implementing features like handling default values. They also refactored and reorganized the project into a monorepo setup, further demonstrating their focus on the project's underlying data modeling and database interaction logic.
aws-dynamodbdata-mapperamazonamazon-dynamodbdynamodb
aws/aws-sdk-php
Jun 2015 - Mar 2017
Official repository of the AWS SDK for PHP (@awsforphp)
Role in this project:Back-end Developer
Back-end DeveloperContributions:85 releases, 616 commits, 283 PRs in 1 year 9 months
Contributions summary:Jonathan focused on adding features to the AWS SDK for PHP. They contributed to updating the getting started guide to match the us-east-1 region. Furthermore, they added integration tests for the ConfigService, implemented changes to handle query serialization of flattened lists, and added tests to cover a wider range of use cases. Their contributions included code changes to core components like the `QueryParamBuilder.php` as well as test files.
phpamazonaws-sdksdkaws
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