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Valentin Vion

Valentin Vion

Senior Software Engineer

34 years old
Employed Unavailable
  • Designing, building, and maintaining large-scale products as part of the Account team
  • Ensuring that all parts of the technical design are correctly incorporated
  • Writing high quality, testing, and documenting code
  • Following and improving high engineering standards and best practices
  • Technologies: PHP, Symfony, PHPUnit, MySQL, Doctrine, Redis, Grafana, Prometheus, Git, GitLab
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  • Continuous development and improvement of existing microservices and Android application
  • Conceptualized, developed and delivered new services:
    ◦ Implementation of an existing protocol enabling communication between electromobility parties
    ◦ Solution to offer smart charging to customers, based on energy consumption prediction and energy trading
  • Collaborated with internal and external entities to introduce new features
  • Supported the design and documentation of a large and scalable ecosystem
  • Technologies: Java, Spring Boot, Kotlin, Android, Gradle, OpenAPI, PostgreSQL, Grafana, Prometheus, Sematext, Git, Bitbucket, AWS, Auth0
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  • Developed new features for the core system
  • Adapted core system to meet customers specific needs
  • Maintained client projects
  • Insured smooth communication with clients during scrum sprints
  • Technologies: Java EE, Hibernate, JavaScript, Ext JS, XML, MySQL, Solr, Gradle, Subversion, Jenkins, JUnit
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  • Conceptualized, developed, deployed and maintained Android applications and Java desktop applications
  • Supervised the development and deployed the iOS application
  • Contributed to the development of the sensor's firmware
  • Set up and maintained the project management tool Redmine
  • Technologies: Java SE, JavaFX, Swing, Android, C, Mercurial, Bluetooth Low Energy, ANT+, Redmine
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Java Spring Boot Android SDK Kotlin Gradle JavaFX JUnit Mockito


Modern PHP Symfony PHPUnit
AWS JavaScript XML OpenAPI Auth0 Bluetooth Low Energy ANT+
MySQL PostgreSQL SQLite Hibernate Doctrine ObjectBox greenDAO Redis
Grafana Prometheus Sematext
Git Subversion Mercurial
GitLab Bitbucket Jenkins Jira Redmine

Auth0 Specialist

Earners of this badge have a foundational understanding of the Auth0 product and related Identity and Access Management concepts that Auth0 enables. They are able to implement simple authentication in web apps and Single Page Applications, and enable an API to accept and validate access tokens issued by Auth0.

Oracle Certified Associate, Java SE 8 Programmer

An Oracle Certified Associate, Java SE 8 Programmer has demonstrated knowledge of object-oriented concepts, the Java programming language and general knowledge of Java platforms and technologies.
Conferences and events
2022 -

WeAreDevelopers World Congress Berlin

2021 -

Droidcon Berlin

2021 -

Reactive Programming Masterclass with Oleh Dokuka

Learning the benefits of reactive programming and Reactive Streams, how to use one of the most popular implementations called Project Reactor and how to build efficient microservices with Reactive Spring.
2020 -

Designing Microservices with Sam Newman

Getting some framing for microservice architectures that explore the various forces that can drive the design and evolution of microservices.
2020 -

Droidcon EMEA

2020 -

GOTOpia Europe

2019 -

GOTO Berlin


Master 2 Pro SILI (Open Source Computer Science Solutions)

Science faculty, University of Angers (France)

September 2011 to September 2013

Exchange program in Budapest

Technical University of Budapest (Hungary)

February 2011 to May 2011
4-month exchange program in Óbudai Egyetem, IT faculty, Budapest

1st year Sup’ esaip course

Esaip, Saint Barthélémy d'Anjou (France)

September 2010 to September 2011
Bachelor: International Project Manager in IT and Networking

Two-year Diploma in IT

University Institute of Technology, Nantes (France)

September 2008 to June 2010

Holder of the French Baccalaureate with honours

High School Chevrollier (France)

September 2007 to June 2008
Major: Information System Management
  • French
    Native language
  • English
    Full professional proficiency
  • German
    Upper intermediate (level B2)
  • Spanish
    Intermediate (level B1)
  • Mandarin
    Elementary (level HSK 3, learning)
  • Active runner
  • Handball and basketball enthusiast
  • Music lover and concertgoer (blues rock, stoner rock, sludge metal, punk rock)