Andreas Möller is a self-employed software engineer and consultant based in Berlin with over 14 years of professional experience and more than 25 years of coding practice. He helps organizations ship web applications faster and with lower total cost of ownership by emphasizing test-driven development, CI, and maintainable PHP architectures. Andreas has led modernization efforts at companies like Refinery29 and contributed substantial quality and tooling improvements across many high-profile open-source PHP projects such as Composer, PHPUnit, PHP-CS-Fixer and Symfony Flex. His work often focuses on code hygiene, refactoring, test automation and dependency management—practical improvements that quietly reduce long-term maintenance risk. Beyond client work he runs his own firm and remains an active OSS maintainer, speaker and writer, demonstrating a commitment to both craft and community. An unstated strength: he consistently turns legacy, monolithic codebases into testable, Composer-managed projects that scale with teams.
14 years of coding experience
12 years of employment as a software developer
International Business, International Business at Anglia Ruskin University
Faker is a PHP library that generates fake data for you
Role in this project:
Back-end Developer
Contributions:2 releases, 248 reviews, 25 commits in 7 days
Contributions summary:Andreas primarily focused on improving code quality and adhering to coding standards within the FakerPHP library. They implemented code style fixes using PHP CS Fixer, including enabling and configuring various fixers like `void_return`, `no_trailing_comma_in_singleline`, and `trailing_comma_in_multiline`. Additionally, they made changes to the test suite and refactored code to avoid deprecated functionalities, demonstrating a commitment to maintainability and best practices.
PHP implementation of JSON schema. Fork of the http://jsonschemaphpv.sourceforge.net/ project
Role in this project:
Back-end Developer
Contributions:42 commits, 46 PRs, 66 comments in 6 years 10 months
Contributions summary:Andreas primarily focused on bug fixes and code improvements within the PHP-based JSON schema implementation. They addressed issues such as Composer autoloading, removed unused imports, corrected error messages, and ensured code style consistency. Additionally, the user made modifications to the error handling and constraints within the project, specifically addressing how errors are added and handled.
json-schemaphpjsonsourceforgejsonschema
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Andreas Möller - Owner at ergebnis analog + digital GmbH