Benjamin Simon
Senior Software Developer at LocalStack
Metz, Grand Est, France
Summary
🤩
Rockstar🎓
Top SchoolBenjamin Simon is a Senior Software Developer based in Metz, France, with seven years of experience building cloud-native backends, IoT platforms, and developer tooling. He currently works at LocalStack, contributing to core local AWS emulation features and reliability improvements for services like SNS and DynamoDB, and has notable contributions to the popular moto library around S3 behavior and edge-case testing. Benjamin blends strong domain knowledge in renewable energy and heat-pump systems—having architected an IoT fleet platform for 2,700+ units—with modern DevOps practices, test automation, and microservice design. Comfortable across Python, NodeJS, Docker, and messaging stacks, he focuses on shipping robust integrations and pragmatic testing to reduce production surprises. He also brings hands-on field experience from HVAC sizing to export sales, giving him a product-minded perspective uncommon among backend engineers. Passionate about new technologies and sustainability, he pairs curiosity-driven learning with a track record of impactful open-source and commercial engineering work.
7 years of coding experience
7 years of employment as a software developer
Higher National Diploma of Technology, Heating, Ventilation, Air Conditioning and Refrigeration Engineering Technology/Technician, Higher National Diploma of Technology, Heating, Ventilation, Air Conditioning and Refrigeration Engineering Technology/Technician at Université Claude Bernard Lyon 1Information Technology, Information Technology at Pierre Mendès France Epinal
English, French
Github Skills (25)
boto10
pytest10
python10
amazon-sqs10
amazon-sns10
testing10
aws-sqs-fifo10
amazon-dynamodb10
dynamodb10
aws10
amazon-s310
aws-s310
s3-bucket10
integration-testing10
dockers9
Programming languages (10)
Github contributions (5)
localstack/localstack
May 2022 - Jan 2023
💻 A fully functional local AWS cloud stack. Develop and test your cloud & Serverless apps offline
Role in this project:
Backend & DevOps Engineer
Backend & DevOps EngineerContributions:1182 reviews, 96 commits, 882 PRs in 7 months
Contributions summary:Benjamin primarily contributed to the backend logic of the LocalStack project, making fixes to SNS and DynamoDB, including improvements to message attribute handling and addressing issues in Dead Letter Queues (DLQs). They also demonstrated a focus on testing, implementing various integration tests for SNS and DynamoDB, and ensuring the correct handling of different configurations, including FIFO topics and message delivery across AWS services. The user's work included refactoring existing tests and implementing new features.
serverless-cloudpythonaws-cloudtestingserverless
getmoto/moto
Apr 2023 - Oct 2024
A library that allows you to easily mock out tests based on AWS infrastructure.
Role in this project:Back-end Developer / Test Automation Engineer
Back-end Developer / Test Automation EngineerContributions:14 PRs, 14 comments, 3 issues in 1 year 6 months
Contributions summary:Benjamin primarily contributed to the `moto` library by implementing and testing various S3 functionalities. Their work involved updating existing S3 logic, specifically for the `CopyObject` operation, and adding new tests to cover different scenarios, including encryption, storage classes, and ACLs. They also addressed bugs related to checksum calculations and range request handling, demonstrating a focus on improving the accuracy and reliability of the S3 implementation within the mock AWS environment.
ec2bototestinginfrastructureaws-infrastructure
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