Test Engineer

Qualinx B.V.; Delft; On-site; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Employee equity

Wellbeing resources

Visa process support

Pension contribution

Vibrant scale-up culture

Job summary

Qualinx, a Delft-based semiconductor startup, seeks a Test Engineer to join our GNSS and IoT test team. You will develop and release production test solutions, partner with Design, Product Engineering and external manufacturing to improve yield and debug issues.

Requirements include 5+ years in semiconductor test, experience with SPI/I2C/JTAG, SCAN/MBIST, and proficiency in Python, C/C++, MATLAB. We offer equity, wellbeing benefits, visa support, and a vibrant, fast-paced work culture.

Qualifications

• Bachelor's degree in Electrical/Electronic/semiconductor engineering or related field.
• Minimum five years of experience in semiconductor test engineering or related roles.
• Proficient in embedded digital interfaces (SPI, I2C, UART, SWD, JTAG).
• Experience with ATE platforms and test development environments (NI, Teradyne IG-XL).
• Strong scripting/programming skills in Python, C/C++, MATLAB.

Responsibilities

• Develop, validate, and release production test solutions for Qualinx products.
• Develop and debug ATE programs for wafer sort and final test.
• Characterize silicon, support yield improvement, and production qualification.
• Analyze test results to identify issues and opportunities for improvement.
• Collaborate with Design and Product Engineering to investigate failures and drive corrective actions.
• Contribute to test time optimization and data-driven test coverage.

Skills

SPI/I2C/JTAG/SCNAN MBIST

Python/C/C++/MATLAB

Digital test methodologies (SCAN/MBIST

ATE platforms (NI, IG-XL)

Semiconductor test development

OSAT/NPi experience

Analytical problem solving

Cross-functional communication

Education

Bachelor's degree in Electrical/Electronic/Semiconductor Engineering

Tools

NI PXIe

Teradyne IG-XL

UltraFLEX / J750HD platforms

Job description

Join our cutting-edge start-up adventure!

Who are we?

Join the Revolution in GNSS and IoT Connectivity

At Qualinx, we’re not just building chips, we’re engineering the future fabric of the connected world. As a pioneering semiconductor scale‑up, we’re transforming how devices connect, communicate, and operate through our ground‑breaking Digital RF technology. Our mission goes beyond ultra‑low power GNSS: we’re redefining what’s possible in adaptive, scalable, and intelligent connectivity for the Internet of Things.

Born from deep‑tech innovation at TU Delft, our team of visionary engineers and bold thinkers is tackling the toughest challenges in GNSS and IoT, starting with power consumption and expanding into dynamic, context‑aware solutions that adapt to any environment or use case. We’ve already achieved what many thought impossible: the world’s most advanced GNSS chipset. But that’s just the beginning.

At Qualinx, we believe that the future of connectivity lies in precision, efficiency, and adaptability. Our ambition is to become the invisible thread that seamlessly interconnects billions of devices: powering a smarter, more responsive world.

What Sets Us Apart

Joining Qualinx is about becoming part of a culture that’s as ambitious as it is authentic. We hold ourselves to high standards, thrive on solving the unexpected, and push boundaries together. But we also know how to enjoy the ride. Our culture is a unique blend of curiosity, team spirit, and a touch of unconventional charm. It’s fast‑paced, fun, and grounded in a sober sense of purpose and perspective. Whether we’re deep in design reviews or sharing laughs over lunch, we’re building something meaningful together. At Qualinx, you’re not just contributing to a ground‑breaking technology, you’re helping shape a team that’s redefining what it means to work in deep tech.

Job Description

As a Test Engineer, you will support the development and production release of test solutions for Qualinx products. Working closely with Design, Product Engineering, Reliability, and external manufacturing partners, you will contribute to digital and memory test development activities, product characterization, yield improvement, and production support.

Key Responsibilities

• Support the development, validation, and release of production test solutions for Qualinx products.
• Support in developing and debugging ATE test programs for wafer sort and final test.
• Support silicon characterization, correlation, and production qualification activities.
• Analyze test results and production data to identify issues and opportunities for yield improvement.
• Work with Design and Product Engineering teams to investigate test failures and support root cause analysis.
• Contribute to test time optimization and test coverage improvements.
• Support OSAT and manufacturing partners during product bring‑up and production ramp.
• Assist in implementing and validating digital test methodologies, including SCAN, MBIST, JTAG, and Flash testing.
• Develop automation scripts and tools to improve test efficiency and data analysis.
• Maintain test documentation and support continuous improvement of test processes.

Requirements

• Bachelor's degree in Electrical Engineering, Electronics Engineering, Semiconductor Engineering, or a related field.
• Minimum five years of experience in semiconductor test engineering, product engineering, or a related role.
• Semiconductor test development and production test flow experience.
• Experience with semiconductor testing at wafer sort and/or package level.
• Experience with embedded digital interfaces such as SPI, I2C, UART, SWD, and JTAG.
• Understanding of digital test methodologies, including SCAN, MBIST, JTAG/Boundary Scan, IDDQ and Flash Memory Testing
• Experience with ATE platforms or test development environments such as NI and Teradyne IG-XL.
• Programming or scripting experience in Python, C/C++, MATLAB, or similar languages.
• Understanding of electronics fundamentals and digital circuit operation.
• Strong analytical and problem‑solving skills.
• Good communication skills and the ability to work effectively in a diverse cross‑functional team.
• Experience with NI PXIe, Teradyne J750HD, or UltraFLEX platforms.

Preferred Experience

• Familiarity with data analysis tools (e.g MATLAB, JMP, or equivalent).
• Experience with ATPG and vector conversion flows using tools for production ATE implementation.
• Knowledge of Design-for-Test (DFT) concepts, including Scan, MBIST, JTAG, Boundary Scan, and ATPG.
• Experience working with OSATs in NPI and high‑volume manufacturing environments.
• Exposure to WLCSP products, wafer sort, and wafer‑level development and testing methodologies.
• Experience with test data analysis and yield monitoring tools is preferred.

What's in it for you?

At Qualinx, we believe that great work starts with a great environment, pioneering technology and a fun dynamic market to address. Here’s what you can expect when you join our team:

• Ownership and Impact: We offer employee equity, giving you the opportunity to share in the success you help create.
• Well‑being Matters: Your physical and mental health are important to us. We provide access to wellness resources, including company discounts and a free mental healthcare platform.
• Global Talent, Local Support: If you're relocating from abroad, we provide full support throughout the visa process to ensure a smooth transition.
• Future‑Focused Benefits: We contribute to your pension savings to help you plan ahead with confidence.
• Inspiring Workspace: Work from a modern and vibrant, well‑equipped office designed to help you do your best work.
• Scale‑up Team Spirit: We celebrate our wins together with fun quarterly events—think great food, games, and unforgettable experiences.