Senior Functional Tester (m/f/d)

Are you ready to take quality to the next level? At Sofico, we develop Miles, our future-proof platform designed to support the full business lifecycle of automotive finance, leasing, fleet and mobility companies worldwide.

Miles is built with flexibility at its core — from private lease and company car leasing to subscription-based mobility solutions, all managed within one powerful platform.

As a Senior Functional Tester, you are not just validating features — you are safeguarding quality, driving improvements, and shaping the way we test. You play a key role in ensuring our software meets the highest standards while collaborating closely with analysts, developers, and fellow testers across teams.

Your Role

As a Senior Functional Tester, you are responsible for ensuring the functionality, reliability, and overall quality of new and existing features within Miles.

You will:

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  Design, document and execute functional test scenarios and test cases

  
  


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  Analyze business and functional requirements and translate them into structured test approaches

  
  


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  Detect, document and follow up on defects in close collaboration with development teams

  
  


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  Contribute to test automation initiatives and help improve automation frameworks

  
  


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  Support integration, regression, and performance testing activities

  
  


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  Collaborate with business analysts, developers, and product teams to ensure high-quality releases

  
  


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  Safeguard QA standards, best practices and contribute to continuous improvement

  
  


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  Take ownership of testing initiatives within your domain

  
  

As you grow further in this role, you will:

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  Lead testing efforts across projects or domains

  
  


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  Define and improve quality standards and testing strategies

  
  


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  Mentor junior testers and share best practices

  
  


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  Strengthen automation and performance testing capabilities within the team

  
  

Your Interests and Skills

Quality is your passion. You don’t just test software — you understand how systems work, how users think, and where risks might hide.

You combine analytical strength with strong communication skills and enjoy working in a collaborative, Agile environment.

We’d love to see the following aspects as well:

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  Several years (5+ preferred) of experience in functional testing within an enterprise software product environment

  
  


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  Proven experience testing complex platforms (ERP systems experience is a strong plus)

  
  


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  Strong knowledge of test design techniques and structured testing methodologies

  
  


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  Experience with test automation tools and frameworks

  
  


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  Familiarity with integration testing and performance/load testing

  
  


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  Strong analytical and problem-solving skills

  
  


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  Ability to collaborate closely with both business and technical stakeholders

  
  


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  Leadership mindset with mentoring capabilities

  
  


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  Experience working in an Agile setup

  
  


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  Fluent in English, as we are an international and multicultural company

  
  

Who You Are

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  Adaptable and comfortable in an evolving environment

  
  


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  Detail-oriented without losing sight of the bigger picture

  
  


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  Proactive and solution-driven

  
  


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  A clear communicator who can explain risks and findings effectively

  
  


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  Continuously eager to learn and improve

  
  


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  A team player who also takes ownership

  
  

We Offer

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  A competitive salary paid 14 times a year

  
  


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  Full medical insurance covered by Sofico

  
  


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  €10,46 daily meal allowance for every day worked

  
  


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  Flexibility with adjustable hours and work-from-home options

  
  


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  A sleek, modern office with excellent accessibility and amenities

  
  


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  Tailored six-month onboarding with your own job coach

  
  


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  Exciting team events: think after-work drinks, BBQs, and more