Test Engineer

Senior Mixed-Signal Test Engineer

Location: Aliso Viejo, California

Base salary + Profit Sharing + 401(k) Match + Comprehensive Benefits

About the Company

An established semiconductor company developing high-performance mixed-signal products for mission-critical applications. This is an opportunity to join a collaborative engineering team working across the full product lifecycle, from test development and qualification through to production and continuous improvement.

About the Role

This role is responsible for developing, implementing, and improving test solutions for high-performance mixed-signal semiconductor products. You will work closely with design, product engineering, validation, and applications teams, with a particular focus on ATE, high-speed testing, test optimization, and product qualification.

Responsibilities

• Lead the transition of test solutions from legacy platforms to newer, more versatile systems.
• Develop and implement high-speed test solutions at package and wafer level, covering both hardware and software.
• Collaborate with design teams to implement analog and digital Design for Test (DFT) methodologies.
• Analyse production test times and yields to identify opportunities for improved efficiency and throughput.
• Support long-term planning and acquisition of test equipment and systems.
• Develop and introduce innovative test methodologies to improve test accuracy, speed, and cost efficiency.
• Work cross-functionally with product engineering, design, and validation teams to assess new products and improve test coverage.
• Develop and execute reliability screening and qualification testing.
• Support ATE characterisation and product robustness activities.
• Analyse test data and provide clear, actionable reports to relevant stakeholders.
• Manage multiple test engineering projects simultaneously, ensuring delivery to agreed timelines and quality standards.

Qualifications

• Bachelor’s or Master’s degree in Electrical Engineering, Physics, or a related technical field.

Required Skills

• ATE test development and production testing.
• Analog and digital IC test.
• Mixed-signal semiconductor testing.
• High-speed test development and debugging.
• Package and wafer-level testing.
• Test programme development.
• Hardware and software test solutions.
• LabVIEW, ATEasy, Cohu/Unisom, Linux, C, C++, or similar technologies.
• PCB design and layout.
• Test data analysis, yield improvement, and test-time optimisation.
• Reliability and qualification testing.

Equal Opportunity Statement

This company is committed to fostering an inclusive and diverse workplace and prohibits discrimination based on race, colour, religion, gender, national origin, age, disability, veteran status, marital status, pregnancy, gender identity, sexual orientation, or any other legally protected status