Embedded Systems Engineer

Date PostedMay 28, 2026LocationHachioji, Tokyo, JapanCompanySanyo Seiko Co., Ltd.SalaryJPY 4500K - JPY 8000KTypeelectronics (appliance/semiconductor) - control - software architect it (embedded software, control systems) - software architecture manufacturing (automobile/plant engineering/precision equipment) - other

Job Summary

You will be responsible for embedded software design and development for medical devices and optical equipment. The role involves the full development lifecycle, from requirements definition and specification determination to design, application development, and testing. You will work within a collaborative design department to deliver high-quality solutions for both contract and in-house projects.

Responsibilities

  • Software design for optical and medical equipment
  • Requirements definition and specification development
  • Embedded application development and debugging
  • Full-cycle development from design to testing

Required Skills

  • Embedded software development
  • C programming language
  • 10+ years of professional experience
  • Fluent Japanese (JLPT N1)

Job Details

### Job Description We develop embedded software for microcontrollers necessary for the operation of medical devices, etc. Responsibilities include meetings, specification determination, document creation (specifications, procedures, etc.), basic design, detailed design, application development, and testing. ### Job Summary You will be responsible for software design for optical equipment developed on a contract basis and software development for medical devices developed in-house. You will be involved from requirements definition and customize the operation of the machines according to customer requests, including debugging. ### Product Examples We handle general industrial equipment such as optical equipment, and our own high-temperature observation equipment/medical equipment. Specifically, medical equipment (mainly) such as blood flow measurement devices and arteriosclerosis measurement devices, and industrial equipment such as high-temperature observation equipment. ### Organizational Structure Design Department in Hachioji consists of 10 engineers in a flat and open communication environment. ### Working Hours 8:15 AM - 5:15 PM (Lunch break: 12:15 PM - 1:00 PM; Afternoon break: 3:00 PM - 3:15 PM) ### Job Requirements - Experience in embedded software development - Experience developing using C language - 10+ years of work experience - Japanese Level: Fluent (JLPT Level 1 or N1) ### Preferred Requirements - English proficiency - Familiarity with AWS ### Salary & Benefits - Salary increase: once a year - Bonus: four times a year - Allowances: Commuting allowance, Community support (housing) allowance - Benefits: Health insurance, Employees' pension insurance, Employment insurance, Workers' compensation insurance, Retirement benefits (after three years), Employee savings plan, Workplace NISA savings plan ### Employment Conditions - Full-time - Probationary Period: 3 months