About this opportunity:
We are now looking for an experienced Filter Designer with a deep interest in radio and RF filter design who wants to shape the next generations of 5G and 6G radio systems. You will work in Radio Design, responsible for research, development, and maintenance of radio units, together with global cross-functional teams.
By joining our Team, an important part of your role will consist of developing filter products, technical solutions, and components. You will be involved in various development activities like requirement analysis and definition, design, integration, verification, and product documentation.
A large extent of our work is performed together with Ericsson's teams from all over the world and several external suppliers. In this context, you will interface with radio design, antenna design, mechanical design, sourcing, and production. Co-operation with other design centers all over the World is our day-to-day reality and should represent an additional motivation for you to join our organization.
What you will do:
As a Filter Designer, you will be a key member of the team developing the next generation of RF filters integrated in Ericsson radio hardware. In this role, you will:
- Design and develop high-quality filter products, technical solutions, and components for our radio units.
- Perform requirement analysis and definition, ensuring system and design requirements are correctly interpreted, allocated, and translated into testable verification objectives.
- Simulate and develop new filter concepts and design solutions using industry-standard RF tools (for example HFSS and ADS) together with Ericsson's internal filter simulation and automation tools.
- Review design solutions and drive continuous improvements of products, methods, and processes.
- Perform integration, verification, and practical work with prototypes in collaboration with lab, production, and test engineering.
- Contribute to pre-development and technology studies, following and influencing developments in 5G and 6G radio systems.
- Work with strategic technical leadership within the filter design domain, including mentoring less experienced colleagues and sharing best practices.
- Support troubleshooting and customer cases within your technical area when needed.
The skills you bring:
- At least a MSc in Physics, Electrical Engineering, or equivalent.
- Several years of experience from RF filter technologies, including design knowledge and fabrication processes.
- Strong knowledge of radio and RF design, and a good understanding of cellular radio networks.
- Proficiency with HFSS and ADS (or equivalent RF simulation tools).
- Ability to interpret and apply system-level requirements to the filter design domain, including traceability and verification planning.
- Proven ability to work in cross-functional, network-oriented organizations and collaborate effectively across sites and cultures.
- Proven ability to work effectively with external partners and suppliers.
- Workable spoken and written English (Japanese language skills are a plus), comfortable presenting technical work and review outcomes with a passion for knowledge sharing and collaboration.
- Experience or clear potential to take informal technical leadership, mentor others, and influence technical direction.
- Familiarity with Lean & Agile ways of working.
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: Japan (JP) || Yokohama
Req ID: 786000
Skills Required
- Master of Science degree in Physics, Electrical Engineering, or equivalent
- Several years of experience with RF filter technologies, including design knowledge and fabrication processes
- Strong knowledge of radio and RF design
- Good understanding of cellular radio networks
- Proficiency with HFSS and ADS or equivalent RF simulation tools
- Ability to interpret and apply system-level requirements to filter design, including traceability and verification planning
- Ability to collaborate effectively in cross-functional, global, and network-oriented organizations
- Ability to work effectively with external partners and suppliers
- Workable spoken and written English
- Experience or clear potential for informal technical leadership, mentoring, and influencing technical direction
- Familiarity with Lean and Agile ways of working
- Japanese language skills
What the Team is Saying
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Ericsson Compensation & Benefits Highlights
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Healthcare Strength — U.S. job postings describe multiple medical plan options (including PPO and HSA‑eligible HDHP) plus dental and vision, aligning with a comprehensive medical suite. Corporate materials also emphasize wellbeing resources and EAP support.
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Retirement Support — Company communications and U.S. materials reference market‑competitive retirement benefits, including a 401(k) with automatic employer contributions and additional matching. Investor and benefits materials signal a structured approach to total rewards that includes long‑term savings programs.
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Parental & Family Support — U.S. and EWS guides and postings highlight paid maternity and parental/adoption leave at full pay, alongside structured short‑term disability at full pay for defined weeks by tenure. These programs are positioned as part of a family‑friendly, work‑life‑balance offering.
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What We Do
Ericsson builds the digital connectivity the world relies on. Our technology underpins the mobile networks, platforms, and systems that billions of people, businesses, and societies depend on every day. We are a global leader in communications technology, delivering mobile network infrastructure, cloud software, and wireless connectivity solutions for service providers and enterprises worldwide. Our networks support connectivity across 180+ countries, helping power everyday communication as well as critical digital services at global scale. Connectivity has evolved far beyond consumer mobile use. Today, nearly 80% of the world’s population accesses the internet via mobile networks, and Ericsson is helping shape what comes next. We are advancing 5G and 5G Advanced, developing network APIs that open connectivity to the global developer ecosystem, and applying automation and AI to make networks more intelligent, efficient, and resilient. Ericsson was the first company to launch live 5G networks on five continents, and our 5G platform is now commercially live in 150+ networks across 60+ countries. We also support more than 36,000 enterprise customers, enabling secure, high-performance connectivity for industries such as manufacturing, aviation, logistics, utilities, and public safety, where reliability and performance are mission critical. Innovation is central to how we work. Ericsson has approximately 28,000 employees in research and development, backed by one of the strongest intellectual property portfolios in the industry with 60,000+ granted patents. Our engineers, researchers, and technologists work across 100+ global R&D sites, helping define how networks evolve and how digital infrastructure is built for the long term. As the world moves toward a mobile-first, AI-powered, and cloud-driven future, connectivity becomes the foundation for digital transformation across every industry. Ericsson is building that foundation, shaping the future of digital connectivity through technology that operates at global scale and supports real-world impact, today and for what comes next.
Why Work With Us
Ericsson is a place for people who want to work on technology that powers everyday life. You’ll contribute to large-scale systems used every day, tackle complex challenges in live environments, and keep developing your skills and career in your own vision.
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