Embedded Engineer l IoT company l Basic Japanese OK!

Job Overview

  • Employer Type Recruiter / Dispatch / Temp Agency
  • Salary 400-800万円 JPY / Year
  • English Level Business Level
  • Japanese Level Basic Level
  • Restricted to Domestic Applicants? Overseas applicants allowed
  • Visa Sponsorship Yes


【About the Company】
Our company provides IoT services to realize smart life.
We are aiming to become the no.1 IoT platform in people’s living space, in order to realize life with high comfort, and to make a free and enriched society,

【Why Us?】
Our company has a global environment, interacting with an offshore development team from India, allowing you to utilize your language ability.
Moreover, it is also a start-up, which also allows you to have the discretion to conduct development.
It is an environment where you can actively work on improving work efficiency, working comfortably, and creating rules.

【Job Content】
You will be responsible for building the system infrastructure to solve the issues related to living space and lead a richer life.
We are looking for someone who can be the core of scalable development of our products that work with smart speakers, smart devices, and all kinds of services.

【Specific Tasks】
LS Mini/Hub firmware operation or development

【Development Environment】
-Language:C/C++ ,RTOS program using IDF for ESP32,C programming for Micro controllers
-IoTプロトコル:HTTP, MQTT, Web sockets, HTTPS, MQTTS, BLE, Zigbee-HA.
Debugging skills using JTAG

【Employment Type】
Full-time (trial period 3 months)

【Work Location】
Minato-ku, Tokyo

【Working Hours】
Flex time (core time: 11.00-16.00)

4.0-8.0 M JPY
Salary raise: Once a year (April)

【Perks and Benefits】
– Flex time system, remote-work is possible if requested
– Provision of display, preferred keyboard, mouse, chair, etc. so that each person can perform comfortably and maximally
– Financial assistance in purchase of learning materials, participation in external training for areas of interest and skills acquisition
– Free drinks, free snacks (purchased and replenished on request)

Weekends, paid leave (after trial period ends), end of year and new year holiday, personal holiday, special holiday

【Selection Process】
Document screening → 1st interview(engineer)+technical test→ 2nd interview(president)+ video interview with team from India if necessary → Final interview(director)
※Face-to-face interview is required

・Japanese basic-daily conversational level
・Possession of working permit in Japan
・Over 5 years of development experience in embedded software
・Over 2 years of experience of product development or management

【Good to have skills and experience】
-BLE device or sensor control experience
-ZigBee device or sensor control experience
-Wi-Fi device control experience
-Infrared device control experience
-C programming experience

【Preferred personality】
– Leadership ability for development/problem solving
– Those who can take on the technical challenge with more interest
– Those who are involved in developing their own services and want to grow their services with their own technology
– Those who have the spirit to challenge without fear of failure
– Those who enjoy nurturing services and can work with independence






LS Mini/Hubのファームウェア運用/開発

-言語:TypeScript, JavaScript, Python
-フレームワーク:Express, Serverless
-インフラ:AWS, EKS


– フレックスタイム制の導入、申請によりリモート勤務可能
– 一人一人が快適に最大限にパフォーマンスを発揮できるよう、ディスプレイ、お好きなキーボード、マウス、椅子等を支給
– 図書購入補助、ご興味のある分野や技術習得のための外部研修の参加費補助
– フリードリンク、フリースナック(ご要望の応じて購入、補充します)


書類選考 → 一次面接(エンジニア)+ 技術テスト→ 二次面接(社長)+必要に応じてインドチームとVideo interview→最終面接(取締役)

– プロダクト開発/マネジメント経験(目安2年以上)

– BLEデバイス/センサーの制御経験
– ZigBeeデバイス/センサーの制御経験
– Wi-Fiデバイスの制御経験
– 赤外線デバイスの制御経験
– C言語のプログラミング経験

– 開発/問題解決に向けてリーダーシップを発揮して動ける方
– 技術的な挑戦に人一倍興味を持って取り組むことが出来る方
– 自社サービスの開発に関わり、自らの技術でサービスを成長させたい方
– 失敗を恐れずにチャレンジする精神を持っている方
– サービスを育てることを楽しみ、主体性を持って取り組める方

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Company Information
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Provide Opportunities to People Around the Globe Jellyfish Group’s main fields are language education and the recruitment of international talents. We offer comprehensive support from the Japanese language and overseas education in Asian countries, to... Read more >
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