Alex Forsyth
Senior Software Engineer at Meta
New York, New York, United States
Summary
🤩
Rockstar🎓
Top SchoolAlex Forsyth is a Senior Software Engineer in New York with 10 years’ experience, currently building high-performance C++ systems that power Meta’s ads stack. He previously led teams at AWS working on code generators and was an active contributor to the widely used aws-sdk-js and aws-sdk-js-v3 projects, driving modularization, bug fixes, HTTP handler refactors, and type/pagination improvements. Alex bridges low-level performance engineering with developer tooling and cloud integrations, shipping fixes for S3 object-lambda functionality and content-type behaviors across AWS services. Earlier roles span data visualization and pipelines at Qualtrics—where he filed a patent for a label collision algorithm—to scaling ingestion and real-time systems at Uptake and algorithmic improvements in trading, demonstrating a rare mix of systems, tooling, and analytics experience.
11 years of coding experience
9 years of employment as a software developer
Computer Science, Computer Science at University of MichiganPalos Verdes High School
English
Github Skills (24)
javascript10
typescript10
aws-sdk10
aws10
amazon-s310
typescript-types10
aws-s310
typescripts10
s3-bucket10
debug9
nodejs9
fetch-api9
rest-api8
unit-test8
jtest8
Programming languages (7)
Github contributions (5)
aws/aws-sdk-js-v3
Jun 2020 - Jun 2021
Modularized AWS SDK for JavaScript.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:164 reviews, 39 commits, 105 PRs in 1 year
Contributions summary:Alex primarily contributed to the modularization and enhancement of the AWS SDK for JavaScript. Their work involved refactoring the `fetch-http-handler`, including removing CORS mode and updating testing. Additionally, they made type-related improvements, particularly regarding string buffers and pagination types within the SDK. Furthermore, the user integrated linting and prettifying tools to improve code quality and maintainability across the repository.
aws-sdk-jsjavascriptaws-sdkmodularizedsdk
aws/aws-sdk-js
Nov 2020 - May 2021
AWS SDK for JavaScript in the browser and Node.js (In Maintenance Mode, End-of-Life on 09/08/2025). The AWS SDK for JavaScript v3 in the browser and Node.js is available here: https://github.com/aws/aws-sdk-js-v3
Role in this project:Backend Developer
Backend DeveloperContributions:12 reviews, 6 commits, 15 PRs in 5 months
Contributions summary:Alex primarily contributed to bug fixes and feature enhancements within the AWS SDK for JavaScript. Their work involved addressing issues in cloudwatch logs, the S3 endpoint parser, and content type header updates for services like LookoutMetrics, Finspace, and Finspacedata. Key changes included improvements to the S3 object lambda functionality and adjustments to the content-type headers for specific AWS services. These updates focused on improving the functionality and compatibility of the SDK.
browsernode-jsjavascriptaws-sdksdk
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