Robin Lehrmann
Senior Software Developer at whatwedo GmbH
Bocholt, North Rhine-Westphalia, Germany
Summary
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RockstarRobin Lehrmann is a Senior Software Developer with 11 years of experience specializing in PHP and Symfony, applying hexagonal architecture, Domain-Driven Design, and strict SOLID principles to build maintainable, well-tested systems. He combines hands-on backend development with solid DevOps expertise—provisioning Linux servers (Debian/FreeBSD), automating with Ansible, orchestrating AWS infrastructure via Terraform/Terragrunt, and containerizing workflows with Docker and ECS. His recent roles include leading teams and coaching engineers in Symfony, PHP, AWS and Terraform, and designing event-driven microservices using Symfony Messenger, SNS and SQS. Based in Bocholt, Germany, Robin is as comfortable refactoring legacy applications into modern architectures as he is implementing CI/CD pipelines, which makes him a pragmatic architect who bridges product needs and operational realities. An understated strength is his focus on separating domain logic from framework concerns, enabling long-lived, adaptable systems rather than quick framework-dependent hacks.
11 years of coding experience
13 years of employment as a software developer
Github Skills (105)
jitsi10
video-conferencing10
image-analysis10
static-analysis10
debian10
architecture10
aws-eventbridge10
bundle10
clean-architecture10
php-framework10
dbal10
exif10
symfony-bundle10
sfu10
codeclimate10
Programming languages (10)
Github contributions (5)
robinlehrmann/mobile-de-api
Jan 2017 - Feb 2017
Contributions:73 pushes, 1 branch in 1 month
robinlehrmann/home
May 2022 - Nov 2024
Contributions:4 pushes, 1 branch in 2 years 6 months
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