Senior Backend Engineer

  • Remote OK - Worldwide
  • Full-time
  • January 12, 2023
6,000,000 - 9,800,000 JPY /yr
Apply from Anywhere 👍
Relocation to Japan 👍
(Overseas visa sponsorship supported)
Language Requirements
Japanese: Not Required 👍
English: Business Level
Minimum Experience
Senior or above

Are You Looking…

  • To make a difference at the fastest-growing tech company in Japan?
  • For a fair working environment where anyone regardless of their background can make an impact
  • To invest yourself and take ownership of your work
  • Forward to work in a highly flexible, remote-first organization 
  • To simply have a ton of fun?

We Are Zeals

A communication tech company based out of Tokyo, Japan. We are a group of scrappy and hungry bunch from different walks of life, looking to make an actual impact on the way people and businesses communicate through our AI Chatbot technology. We obsess over bringing hospitality to everyone--be it our customers or you! You’re an individual with unique needs. As an employer we are ready to roll-up our sleeves and change the status quo if it means to make your experience better! 

Everyone matters here at Zeals--regardless of their background. Be it a young coding prodigy (Yes, our CTO just turned 23) to someone who hardly speaks Japanese. Everyone has a voice. We went from a small, humble apartment to a 300 people organization across multiple time zones (with no sign of stopping) in the span of 7 years--all that thanks to our members’ contributions. So, if you join us, get ready to raise up your voice and spend your time contributing to projects that matter! 

Our last 2 years have been phenomenal and we are still growing (with so much untapped potential). While we can’t attract you with ping-pong tables or all-you-can-drink espresso bars. We can promise you  full flexibility on your workstyle and co-workers that you can brag about to your friends, family or anyone you meet the next time you go out for a party! 


  • Development with a focus on Clean Architecture of new services in Golang, using REST and gRPC interfaces.
  • Ability to read and understand Python and Ruby code.
  • Migrate legacy interfaces (sp: written in Python, Ruby) align DDD architecture while documenting API specification, data flow.
  • Managing a team of engineers and mentor and guide them for next level.

Must have 

  • Proficiency in development flow based on git and GitHub.
  • 3+ years of experience in Software Engineering or a similar role.
  • 2+ years of experience in development using Golang.
  • Strong sense of testing including unit test and integration test.
  • Ability to communicate recommendations for improvements on current systems, processes, and services as needed.
  • Exhibit a strong ability to adapt in a dynamic and ever-changing environment.
  • Ability to solve problems, especially to identify the source of the problem, and create and test solutions.

Should have

  • Working knowledge of Docker, Kubernetes, and Clean Architecture.
  • Working knowledge of gRPC and RESTful API.
  • Working knowledge of RDB and SQL.
  • Experience in Google Cloud Platform.
  • Experience in Continuous Integration tools like CircleCI.
  • Experience in issue management systems like Jira.

Nice to have

  • Experience in graph databases like DGraph.
  • Experience in document databases like MongoDB.
  • Experience in development using Python, Ruby, NodeJS.
  • Communicate in Japanese.

Our Values

  • From Zeals good things come from giving your all.
  • Bet on Paradox be a maverick and never settle for just good enough.
  • United Will teamwork is the heart to every achievement.

What We Can Give You in Return

  • Salary Range : negotiable 
  • Bonus : twice
  • Performance review: twice a year
  • Holidays: 10 days paid holidays during the first year, weekends off, national holidays, summer and winter break. 






中国で人気のwechat上には800万体のチャットボットがマーケティングに活用されており、アメリカでもConversational Commerceと呼ばれるチャットボットを活用してマーケティングを行うサービスが増えています。チャットコマースはまさにこの"会話を通じて商品を買っていただく"ことに特化したチャットコマースを提供する業界初のサービスです。








Zeals' policies during COVID-19 are as follows:

  • Overseas candidates are welcome to apply — and can even continue working from abroad!
  • There are currently no meetings that require your physical presence (especially during COVID-19)
  • For anyone who does relocate to Japan during COVID-19, Zeals will cover any costs for quarantining, testing etc.
View Zeals's company page

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Senior Backend Engineer at Zeals