Senior Test Engineer

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Start: 10/2026 | Remote: 70%

Beschreibung

IT
Testing (Software)
Test Automation
Automated Testing Framework
Software Quality
Certified Software Tester (CSTE)
E2e Testing
Test Design
Test Execution Engine
Test Management
Testing Strategies
Testng
Testing
Test-Driven Development (TDD)
Test Instrumentation
Scalability Testing
Testing (Hardware)
TestDirector (Software)
Description
Senior Test Engineer (80-100%)
Location: Lucerne Region, Switzerland (Hybrid)
Working Model: 1-2 days onsite per week, remainder remote
Start Date: Latest October 2026
Duration: 6-9 months
Languages: German (fluent, mandatory), English (professional working proficiency)


About the Role

We are looking for an experienced Senior Test Engineer to play a key role in ensuring and continuously improving software quality within an agile development environment.

This position focuses primarily on hands-on manual software testing (70-80%), including end-to-end testing, exploratory testing, defect analysis, and quality assurance activities. Test automation experience is welcome but is not the primary focus of the role.

Responsibilities

Manual Testing & Quality Assurance
Perform hands-on manual testing of software applications
Execute functional, integration, system, regression, and end-to-end tests
Conduct exploratory testing to identify defects, risks, and usability issues
Analyse business and technical requirements and derive test cases and test scenarios
Create, maintain, and execute test plans, test cases, and test documentation
Identify, analyse, document, and track software defects
Verify bug fixes and perform regression testing before releases
Ensure high-quality standards throughout the software development lifecycle
Collaborate closely with business analysts, developers, product owners, and other stakeholders


Test Strategy & Continuous Improvement
Define and maintain appropriate test coverage
Contribute to quality metrics and quality assurance processes
Support the optimisation of testing methodologies and tools
Participate actively in Agile ceremonies and quality initiatives


Test Automation (Secondary Focus)
Support existing test automation activities
Create and maintain automated test cases where appropriate
Contribute to CI/CD quality validation processes


Required Qualifications

Mandatory Requirements
Higher education in Computer Science, Software Engineering, or a comparable qualification
ISTQB Foundation Level certification or equivalent
Several years of professional experience in software testing
Strong hands-on experience in:
Manual Testing
Functional Testing
Integration Testing
System Testing
End-to-End Testing
Regression Testing
Exploratory Testing
Defect Management
Quality Assurance
Experience creating and executing structured test cases and test plans
Strong analytical and problem-solving skills
Good understanding of Agile software development methodologies
Basic to intermediate experience in test automation
Programming or scripting knowledge in Python, Java, C++, or a comparable language
Fluent German (mandatory)
Good English communication skills


Soft Skills
Strong communication and stakeholder management skills
Structured and analytical working style
Team-oriented mindset
Ability to explain technical topics to both technical and non-technical stakeholders
High level of ownership and accountability
Passion for software quality and continuous improvement


SThree_Germany is acting as an Employment Business in relation to this vacancy.