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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€9.60 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