Yenlin Chen
Staff Software Engineer at SoFi
Seattle, Washington, United States
Summary
🤩
Rockstar🎓
Top SchoolYenlin Chen is a Staff Software Engineer based in Seattle with nine years of experience building edge and cloud infrastructure, particularly in IoT, hybrid container execution, and telemetry pipelines developed during a decade-long tenure at AWS. He has a proven track record delivering large, production-grade systems—from re-architecting a hybrid hardware-in-the-loop test platform for thousands of satellites at Amazon Kuiper to reducing daemon memory and binary size for Greengrass—while rapidly integrating observability tools like OpenTelemetry and X-Ray. An active open-source contributor, Yenlin has improved critical AWS tooling such as the AWS CDK, Copilot CLI, and ECS CLI, focusing on maintainability, release automation, and DevOps ergonomics. He pairs deep systems-level engineering with practical CI/CD and logging solutions, and is now exploring generative AI to augment the kinds of automation and debugging workflows he’s long optimized.
9 years of coding experience
12 years of employment as a software developer
Bachelor of Science EECS, Bachelor of Science EECS at National Cheng Kung UniversityTaipei Municipal Jianguo High SchoolUniversity of California, Irvine
English, Chinese
Stackoverflow
167reputation
29kreached
3answers
2questions
Github Skills (38)
udp10
amazon-ecs10
aws-fargate10
testing10
typescript10
cloud-infrastructure10
docker-compose10
cicd10
go10
aws10
typescript-types10
aws-ecs10
opentelemetry10
infrastructure-as-code10
aws-xray10
Programming languages (8)
Github contributions (5)
aws/copilot-cli
Sep 2019 - Dec 2019
The AWS Copilot CLI is a tool for developers to build, release and operate production ready containerized applications on AWS App Runner or Amazon ECS on AWS Fargate.
Role in this project:
DevOps Engineer
DevOps EngineerContributions:162 commits, 83 PRs, 38 pushes in 3 months
Contributions summary:Yenlin contributed to the project by merging branches and resolving conflicts, specifically related to the `Makefile`. They also made changes in the `pkg/cli` and `pkg/spinner` directories, which involved the creation of mock spinner interfaces and related testing structures. The commits also demonstrate work on the `env_add_test.go` and `env_add.go` files, updating and refactoring the environment add feature, along with the introduction of a spinner for UI feedback.
aws-app-runnerecrproduction-readydeveloper-toolsaws-fargate-application
aws/amazon-ecs-cli
Jun 2019 - Jan 2020
The Amazon ECS CLI enables users to run their applications on ECS/Fargate using the Docker Compose file format, quickly provision resources, push/pull images in ECR, and monitor running applications on ECS/Fargate.
Role in this project:Backend & DevOps Engineer
Backend & DevOps EngineerContributions:1 release, 42 commits, 28 PRs in 7 months
Contributions summary:Yenlin primarily contributed to the `amazon-ecs-cli` project by addressing integration test failures and enhancing functionality. They fixed a broken integration test and implemented support for the `StopTimeout` field, mapping it to the `stop_grace_period` in Docker Compose. Furthermore, the user refactored code to remove redundant environment variable lookups, and addressed issues with the `.env` file in Compose V3. Their work involved modifying various files related to compose, adapter, and integration tests, indicating a focus on backend and configuration aspects of the CLI.
monitorpushecrcomposeecs-fargate
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