Jobs | Engineering Jobs in Japan

Circuit Design

8M JPY - ***M JPY

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Tokyo

Full-time (permanent)

Online Interview: Yes

Remote Work from Overseas: Yes / Remote Work in Japan: Yes

Top-Selling Points

Rate of Foreigners

Less Than

Frequency of English Usage

More Than

Remote work Flex-time Use English Start-up International employees Apply from overseas New business Stock Option provided

Related Skills

Programming Language

Python

Operating System

Linux

Development tools

Git

Language Requirements

Required

Preferred

Job Description

[Business Overview]
Visban Corporation develops innovative technologies to realize next-generation wireless networks using millimeter-wave and terahertz-wave bands. We pioneer the future of communications through our proprietary "V-Mesh" technology, which integrates unique glass-based repeaters with AI-driven mesh network software. Backed by a strong research foundation and credibility—including investments from UTokyo IPC and selection for numerous public grants—our environment allows engineers to take hands-on leadership in shaping cutting-edge fields.

[Job Overview]
・Design of RF passive components for 5G mmWave bands, including power combiners, splitters, directional couplers, and band-pass filters
・Design and layout of RF printed circuit boards (PCB) for mmWave communication devices
・Full-wave electromagnetic (EM) simulations using HFSS and circuit simulations using Qucs/SPICE
・Link budget calculations and RF system-level analysis
・Execution of design improvement cycles by correlating simulation results with hardware measurements
・Collaboration with RF design, hardware, and system teams, including participation in design reviews

[Project Structure and Engineer Roles]
The development team consists of multidisciplinary specialists handling everything from hardware implementation to AI-driven communication control.
・Mechanical Design Engineers: Chip mounting on glass substrates and structural design of radio relay device enclosures
・Simulation Engineers: Design of optimal wiring and antenna radiation patterns using radio wave propagation simulations
・Embedded Engineers: Development of hardware-software interfaces and implementation of device control systems
・Software Engineers: Development of optimal repeater placement algorithms and overall system architecture
・Machine Learning Engineers: Collection and analysis of propagation data and development of control algorithms to optimize beam direction
・AI Engineers: Construction of core AI logic for dynamic control of radio wave propagation paths

[Position Highlights]
・Research-oriented environment with a majority of employees holding PhDs
・Opportunity to engage in both advanced research and business development as V-Mesh technology evolves

[Work Environment]
・Hybrid work system with office attendance typically 1–2 times per week for prototype testing or site visits
・Office located within a 1-minute walk from the station
・Company-sponsored weekly office lunch every Wednesday
・Collaborative development environment including both full-time employees and external contractors

[Impact and Achievements of Global Employees]
・Diverse team with nationalities including the USA, UK, China, South Korea, France, Sweden, Italy, and Japan
・Two-thirds of the total workforce comprised of international members

[Workplace Language]
English is the primary language for internal communication.
*Applicants must be fluent in either Japanese or English.

Required Skills and Experiences

[Mandatory Requirements] ・Bachelor’s or Master’s degree in Electrical Engineering, RF Engineering, or a related field ・Hands-on experience in RF PCB design for high-frequency applications (mmWave or Microwave) ・Proven track record in designing RF passive components, such as combiners, splitters, couplers, and filters ・Proficiency in EM simulation tools such as HFSS ・Familiarity with circuit simulation tools including Qucs, SPICE, or ADS ・Technical knowledge of 5G mmWave frequency bands and associated design constraints ・Native-level proficiency in either Japanese or English [Preferred Requirements] ・Experience using RF measurement instruments such as VNA, spectrum analyzers, and signal generators ・Background in firmware or embedded software development ・Experience in test automation using Python ・Knowledge of low-level communication protocols such as SPI, I2C, and UART ・Proficiency in version control using Git/GitHub [Desired Candidate Profile] ・Willing to work on development that spans both hardware and software ・Enjoys solving problems while working directly with physical devices ・Able to independently learn new technical fields

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Working Condition

[Employment Type]
Full-time / Subcontracting (Side jobs and freelancers welcome)
*Probationary period for full-time employees: 3 months

[Work Location]
Todaimae HiRAKU GATE 601, 2-3-10 Mukogaoka, Bunkyo-ku, Tokyo
2-minute walk from Todaimae Station (Namboku Line)

[Working Hours]
9:00 – 18:00
‐Flextime System Available　*Core Hours: 11:00 – 16:00
‐Break Time: 1 hour

[Benefits and Welfare]
Social Insurance: Health Insurance, Employees' Pension, Industrial Accident Compensation Insurance, and Employment Insurance / Health Checkups / Commuting Allowance: Reimbursed according to company regulations (up to 30,000 JPY per month) / Free Refreshments: Coffee machine, bottled tea, sparkling water, and snacks provided free of charge / Lunch Benefit: Lunch provided once a week / Book Purchase Support: Subsidies available for purchasing professional books / Stock Option Program: Granted based on performance and level of contribution / Side Jobs (Contractual): Negotiable depending on available working hours

[Holidays and Leave]
Two-day weekend (Saturdays, Sundays, and national holidays) / 125+ days off per year / Golden Week holiday / Summer vacation / Year-end and New Year’s holidays / Special leave for family events / Christmas holiday / Annual paid leave (10 days granted after six months of employment) 
(Contractual): Negotiable depending on available working hours

RECRUITMENT PROCESS

Multiple rounds (varies depending on candidate experience)

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