Senior Radio Filter Design Engineer
Ericsson
Join our Team
At Ericsson, we design and deliver the building blocks of mobile connectivity. As an RF Filter Design Engineer, you will focus on the research, design, and development of high-performance filters that are critical to the functionality of our radio products. You’ll work with a team of world-class RF engineers to ensure that our filters meet stringent requirements for insertion loss, selectivity, power handling, and linearity — all while balancing cost, size, and manufacturability.
This is a unique opportunity to help shape the future of mobile communications with solutions that support 5G and beyond.
What You Will Do:
- Design and optimize RF filters (e.g., cavity, ceramic, SAW/BAW, LTCC, dielectric) for wireless communication systems
- Perform electromagnetic simulations and circuit-level modeling using tools like HFSS, CST, ADS, or equivalent
- Validate filter performance through prototyping and lab measurements (e.g., using VNA, spectrum analyzer, PIM tester)
- Collaborate with system architects, RF designers, mechanical engineers, and suppliers to ensure filter integration within the radio unit
- Support DVT, reliability testing, and failure analysis for filter-related issues
- Drive technology innovation in miniaturized and high-selectivity filtering techniques
- Prepare technical documentation including design reports, tuning procedures, and production specifications
- Support qualification and industrialization of filters with external partners
You will bring
- Master’s degree or above in RF/Microwave Engineering, Electronic Engineering, or related discipline
- Strong theoretical understanding of passive RF filter design principles and transmission line theory
- Hands-on experience designing filters for base stations, mobile devices, or RF modules
- Proficient in EM and circuit simulation tools (e.g., HFSS, CST, ADS, AWR)
- Skilled in using RF lab instruments including VNA, spectrum analyzer, and PIM measurement systems
- Strong analytical skills and attention to detail
- Good teamwork, communication, and documentation skills in a collaborative environment
- Fluent in English, both written and spoken
Preferred Qualifications:
- Experience with high-power RF filters, multi-band filters, or tunable filters
- Familiarity with manufacturing processes for cavity, ceramic, or LTCC filters
- Knowledge of 3GPP specifications and radio performance requirements
- Experience working with external suppliers or ODMs
Why join Ericsson?
At Ericsson, you´ll have an outstanding opportunity. The chance to use your skills and imagination to push the boundaries of what´s possible. To build solutions never seen before to some of the world’s toughest problems. You´ll be challenged, but you won’t be alone. You´ll be joining a team of diverse innovators, all driven to go beyond the status quo to craft what comes next.
What happens once you apply?
Click Here to find all you need to know about what our typical hiring process looks like.
Encouraging a diverse and inclusive organization is core to our values at Ericsson, that's why we champion it in everything we do. We truly believe that by collaborating with people with different experiences we drive innovation, which is essential for our future growth. We encourage people from all backgrounds to apply and realize their full potential as part of our Ericsson team. Ericsson is proud to be an Equal Opportunity Employer. learn more.
Primary country and city: China (CN) || Beijing
Req ID: 766335