Software Test Engineer

ALTEN; Amstelveen; Hybrid; EUR 55,000 - 75,000; Full time

Benefits offered by this job

Lease car with fuel card

Hybrid working

Monthly net expense allowance

27 vacation days

Pension scheme with no personal/conrt?

Job summary

ALTEN in Amstelveen is seeking a Software Test Engineer to join our engineering team and contribute to client projects across industries. You will design, develop, and maintain software using C# and support backend tests with MSTest, while collaborating on frontend work with TypeScript and Playwright.

The role requires a 3+ years background in C# and automated testing, English fluency, and ISTQB certification is a plus.

Qualifications

• 3+ years of professional C# development experience.
• Experience in automated testing is mandatory.
• Fluent English communication with colleagues and clients.

Responsibilities

• Design, develop, and maintain software applications in C#.
• Write and maintain integration tests for backend using MSTest.
• Collaborate on frontend development using TypeScript and Playwright.
• Translate technical specs into robust, scalable code.
• Identify, analyze, and solve complex technical issues with innovative solutions.
• Ensure code quality through automated testing, unit testing, code reviews, and best practices.
• Collaborate with cross-functional teams to deliver reliable and performant solutions.

Skills

C#

Automated testing

English communication

Education

Bachelor’s or Master’s degree in CS/SE

ISTQB Foundation certification

Tools

MSTest

Playwright

TypeScript

Job description

As part of our growing team, we are looking for a skilled Software Test Engineer to join us in Amstelveen and contribute to exciting, high-impact client projects across various industries.

Your main tasks will include:

• Designing, developing, and maintaining high-quality software applications using C#
• Writing and maintaining integration tests for the backend using MSTest
• Collaborating on the frontend development using TypeScript and Playwright (or another framework, as the project evolves)
• Translating technical specifications into robust, efficient, and scalable code
• Identifying, analyzing, and solving complex technical issues with innovative solutions
• Ensuring code quality through automated testing, unit testing, code reviews, and best practices
• Collaborating with cross-functional teams to deliver reliable and performant solutions

Your Profile

• Bachelor’s or Master’s degree (HBO/WO) in Computer Science, Software Engineering, or a related field
• Minimum of 3 years of professional experience with C# software development
• Experience in automated testing (a must)
• ISTQB Foundation certification (highly preferred; advanced certification is a plus)
• Strong analytical and problem-solving skills with the ability to handle complex challenges
• Excellent communication skills to engage with colleagues and clients at all levels
• Positive mindset, proactive attitude, and eagerness to continuously learn and grow
• Fluent in English (spoken and written)

Working Conditions

• Lease car with fuel card
• Possibility of hybrid working
• Monthly net expense allowance
• 27 vacation days, with the option to purchase up to 10 extra vacation days
• Pension scheme with no personal contribution required

What We Offer

• Access to exciting projects in key sectors: Defence, Transport, Telecom, Finance
• A diverse client base: Collaborations with both large corporations and smaller players across the Netherlands
• A real career development plan: Continuous training, coaching, daily knowledge sharing
• An innovative and collaborative environment

About ALTEN

ALTEN is a world leader in engineering and technology consulting, with over 57,700 employees in more than 30 countries. We support major companies in their innovation, R&D, and digital transformation projects across sectors such as automotive, aerospace, energy, finance, life sciences, and telecommunications.

Present in the Netherlands for over 20 years, ALTEN operates from its offices in Eindhoven, Capelle aan den IJssel, Apeldoorn, Groningen, and Amstelveen. Today, with a team of 600+ consultants, ALTEN offers a wide range of expertise across Engineering and IT fields. From Automotive to Railway, and Defence to Aeronautics, our experts deploy their knowledge to provide innovative solutions in a dynamic and forward-thinking environment.