Asmir Mustafic
Senior Software Engineer at GetYourGuide
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolAsmir Mustafic is a Senior Software Engineer and manager with 17 years of experience building scalable web platforms and leading distributed teams across Europe. He blends hands-on backend expertise—especially PHP/Symfony, Postgres, RabbitMQ and Redis—with DevOps practices around Docker, Kubernetes, Terraform and CI/CD to ship high-throughput APIs (up to 20k req/s) and resilient microservices. He has led engineering orgs, hired across timezones, and driven product impact from startups to marketplaces and ecommerce at companies like Sourceability and GetYourGuide, where his work reduced response times and enabled 10x faster content publishing. A long-time open-source contributor, he’s improved widely used PHP projects such as Doctrine and JMS Serializer, bringing compatibility and robustness to serialization, migrations and metadata libraries. Comfortable wearing both IC and leadership hats, he combines architecture, test automation and infrastructure skills to prevent early-stage mistakes and scale production systems.
17 years of coding experience
21 years of employment as a software developer
Web Technologies and Mutimedia Web & IT, Web Technologies and Mutimedia Web & IT at Università degli Studi di Udine
Italian, English, Croatian, Bosnian, German, Russian
Stackoverflow
543reputation
49kreached
22answers
2questions
Github Skills (58)
database-migrations10
unit-testing10
json10
caching10
datetime10
appbundle10
object-mapping10
jms-serializer10
serializer10
translation10
api-design10
symfony-bundle10
testing10
doctrine10
data-serialization10
Programming languages (12)
Github contributions (5)
Masterminds/html5-php
Feb 2014 - Jan 2023
An HTML5 parser and serializer for PHP.
Role in this project:
Back-end Developer / QA Engineer / Test Automation Engineer
Back-end Developer / QA Engineer / Test Automation EngineerContributions:19 releases, 3 reviews, 183 commits in 9 years 1 month
Contributions summary:Asmir contributed to the project by modifying HTML5 parser and serializer files. They focused on improving the Tokenizer, addressing newline and tab handling within quoted attributes, and removing quote conversion to entities inside content. The user also wrote and updated tests, adding new tests for character references and addressing errors in the parsing process within the DOMTreeBuilderTest file and fixing broken tests.
parserphpserializerxml-namespaceshtml5-parser
schmittjoh/metadata
May 2018 - Sep 2022
Metadata is a library for metadata management in PHP
Role in this project:Back-end Developer
Back-end DeveloperContributions:14 releases, 2 reviews, 83 commits in 4 years 5 months
Contributions summary:Asmir primarily focused on refactoring and improving the caching mechanisms within the PHP metadata library. They updated the caching signatures and implemented different caching strategies, including file-based, PSR-compatible, and Doctrine cache adapters. Their contributions involved modifying core classes related to metadata management, ensuring that caching is efficient and correctly integrated. They also removed reflection functionality from metadata to streamline performance and made improvements to the test suite.
metadata-managementphp
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