Digital Signal Processing; DSP​/RF Modeling Intern

Impinj is a leading RAIN RFID provider and Internet of Things pioneer. We’re inventing ways to connect everything to the Internet — including retail apparel, retail general merchandise, healthcare items, automobile parts, airline baggage, food and much more. With more than 100 billion items connected to date, and multiple Fortune 500 enterprises around the world using our platform, we solve for a better understanding of our world.

If it’s a thing, we’re working to connect it. Join Impinj and help us realize our vision of a boundless IoT— connecting trillions of everyday items to the Internet.

Impinj is seeking a DSP/RF Modeling Intern to join the Communication Systems Engineering team. You will collaborate with RF systems engineers and simulation developers to enhance our Python-based link‑level simulation environment used for RAIN RFID research and product development. Your work will improve physical‑layer modeling realism and enable more robust evaluation of next‑generation algorithms and system concepts.

• Restructure the RF channel‑modeling framework into a clear, maintainable object‑oriented hierarchy
• Develop a unified geometry‑based RF propagation model consolidating free‑space, reflection, and multipath calculations
• Extend geometric modeling to incorporate realistic antenna directionality and frequency‑dependent gain
• Create comprehensive unit and integration tests validating channel behavior against analytical models
• Implement and test a new RF or DSP technique using the enhanced channel models
• Document best practices enabling rapid algorithm prototyping using the improved modeling framework

• Currently enrolled in a Bachelor's or Master’s program in Electrical Engineering, Computer Engineering, Physics, or a related field
• 1‑3+ years of relevant coursework experience
• Proficiency in Python and numerical computing libraries
• Experience with testing frameworks and validating simulations against analytical models
• Exposure to MIMO concepts, propagation modeling, antenna modeling, or link budget analysis
• Strong analytical and debugging skills
• Strong communication and documentation skills

The Impinj Summer Internship Program is designed to provide undergraduate and graduate students with a comprehensive learning experience that goes beyond traditional work assignments. It offers a unique blend of professional development, mentorship, and networking opportunities to help interns thrive in their roles and prepare for successful careers. Students develop valuable skills through interactive learning sessions and receive personalized mentorship and guidance from early‑career colleagues.

The program offers more than just a resume boost. It’s a chance to access hands‑on experience, leadership insights, and a network of peers and mentors that lasts well beyond the summer.

Learn what our interns last year had to say about their experience:
Impinj Intern Program: A Season of Learning, Connection, and Fun (Impinj blog).

This Summer Internship Cohort begins on Monday, June 15 and ends September 4. The start date is firm; the end date is flexible to end early. All internship positions report at least on a hybrid basis to our Seattle office. There is opportunity for full time employment for those graduates or those entering their senior year.

The benefits listed below may vary depending on the nature of your employment with Impinj and the country where you work.

The typical base pay range for this role across the US is $26.00/hr - $40.00/hr
. Individual base pay depends on various factors such as complexity and responsibility of role, job duties, requirements, and relevant experience and skills. Both market wage data and the…