Sofia Müller 

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Enjoys enhancing user experiences in big data and mobile app systems.



Berlin, Germany 


German, English

Expertise and Skills


ISTQB Advanced Level Test Manager


Dedicated to ensuring the security and usability of software systems.



Sofia Müller was instrumental in ensuring the security of our mobile app
her attention to detail was impressive
Sofia Müller’s usability testing was thorough and insightful
she helped us significantly improve our user interface
Sofia Müller’s expertise in big data systems was evident in her testing process
she identified critical issues we had overlooked
Sofia’s security testing skills are top-notch
she helped us fortify our system against potential threats
I was impressed with Sofia’s knowledge of ISTQB principles
it greatly enhanced the testing process
Sofia Müller’s dedication to her work is commendable
she went above and beyond to ensure our software system was secure and user-friendly
Sofia’s proficiency in both German and English was a huge plus during the testing process
it eliminated language barriers
Sofia Müller’s experience with mobile apps was a great asset
it greatly enhanced the testing process

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