Applications Engineer (Mixed Signal Audio)

TL;DR

Applications Engineer (Mixed Signal Audio): Driving innovation in Mixed Signal Audio solutions by providing expert engineering support and developing reference platforms for Class D Amplifiers with an accent on EMI mitigation, thermal optimization, and circuit analysis. Focus on influencing product definition through customer feedback and aligning design requirements with real-world use cases.

Location: Hybrid (Austin, Texas, USA). Due to export control restrictions based upon applicable laws and regulations, candidates must be able to access technical data without a requirement for an export license. hirify.global is unable to sponsor or obtain export licenses for this role.

Company

hirify.global is a semiconductor company propelled by top engineers in mixed-signal processing, solving complex challenges with innovative end-user solutions for leading consumer brands.

What you will do

• Provide expert-level engineering support for hirify.global customers and field teams, focusing on Class D amplifier integration.
• Design and develop reference platforms and evaluation boards showcasing Class D amplifier performance, including EMI mitigation and thermal optimization.
• Author detailed application notes, white papers, and design guides tailored to Class D amplifier use cases.
• Create advanced Python scripts and automation tools for audio performance characterization and demo control.
• Conduct in-depth circuit analysis and data collection for customer applications, including THD+N, efficiency, and power delivery metrics.
• Influence product definition by contributing insights from customer feedback and system-level testing.

Requirements

• Bachelor’s degree in Electrical Engineering with 2+ years of experience in semiconductor or audio systems.
• Strong understanding of Class D amplifier architectures, modulation schemes (PWM, PDM), and protection mechanisms.
• Experience with audio interface standards: I2S, TDM, I2C, SPI, USB, UART.
• Proficient in schematic capture and PCB layout principles for high-efficiency audio systems.
• Skilled in C/C++, Python or other programming language.
• Hands-on experience with lab equipment: oscilloscopes, audio analyzers, spectrum analyzers, power supplies.
• Excellent communication skills for customer interaction and cross-functional collaboration.

Culture & Benefits

• Join an award-winning culture built on inclusion and fairness.
• Engage in meaningful community involvement and enjoyable employee experiences.
• Work within a dynamic Applications Engineering team driving innovation in Mixed Signal Audio solutions.
• Manage multiple priorities independently across cross-functional teams.
• Occasional travel (approximately 2 weeks/year) for customer support and technical training.