Ja En

About Grune

Get to know Grune

Grune was featured in the Miyagi television program "Chou Iki Only One Miyagi", broadcast on 29 February 2020.
Mr. Mogi, a scientist, interviewed us and introduced our "open" office culture and our VR business which are the characteristics of Grune.

Skill Up

Improve Your English Skills Everyday
With an International Development Team

Using English Daily will Change Your Future


The English skill of Japanese IT engineers is the lowest in the world,
and the annual income gap with IT engineers worldwide
is widening year by year.


Can you read specifications in English?
Can you searching for bug errors in English?
Do you know why you need to research in English?

If You Have a Concern About Managing
a Project in English,
Do Not Worry.
We Will Support You.


At Grune, we hold an "English Conversation Class" every week where you can acquire the English skills that engineers really need. Free while you work.

The instructor is an active engineer leading an international team. By learning English through a curriculum that can be used in real projects, you can improve your English skills.
You will be assigned a class according to your English proficiency. Communicate more in English while working and improve your skills!



We also perform a role-play. We pretend that we are on an actual project, and we will learn phrases and sentences which frequently used.
check the video as an example.


Most members start with no experience in overseas projects but they actively improve their English and management skill.

Members without experience can start work using an automatic translation service, or using a dictionary.
However, as you working with English every day, you will naturally acquire English skills.



The company will cover the lunch fee for the private English conversation lesson with Tomas!
Grune is fully invested in improving the skills of our engineers!
No need to go to expensive English conversation anymore


Member's Voice

Employee Testimonials


矢口 浩平

Kohei Yaguchi

Senior Director

Project development is mostly communicated through a chat web service, so you do not have to rely on spoken English. And if you do not understand something, it is easy to look up!

In an environment where you use English everyday, you will naturally acquire English skills by communicating repeatedly on a daily basis. I started with a TOEIC score of 285, but in less than half a year I was able to manage a team of five Indonesian programmers to complete a project.

For Members

Grune Exists for
Our Employees


We promise the company's profit will be
shared to the members.


We treasure how we should spend our
working time with joy.


Everyone can discuss what kind of company
they want Grune to be and the ideal company to strive for.


We have hanging chairs in our office! It was provided based on the request of the young employees.
Let's create the company where we want to come and work every day!

A relaxing environment is also necessary to develop our creativity.



There are "Club Activities" for facilitating the communication between members! Communication is very important in Grune to develop good relationships among members to grow. You can add more club activities based on your idea.

The activities of each club are posted on the Club Activity Blog.

  • ・Snowboard Club
  • ・Coffee Club
  • ・Sauna Club
  • ・Surfing Club


Grune will be listed on the stock exchange and will continue to develop further. Before listing, Grune distributes stock options as rewards to members based on their contributions. Regardless of age, gender, or years of service, we promise a return commensurate with those who think things through and produce results.



More than half of the leaders are made up of female members. We allow remote work according to each life stage, such as marriage and childbirth. Maternity leave and childcare leave are also available. We also have a track record of taking childcare leave for male members. There are many other systems that incorporate the voices of female members, such as menstrual leave! We are actively adopting a system based on the opinions of our members so that each employee can work energetically and in their own way.
There are many other systems that incorporate the voices of female members, such as menstrual leave! We are actively adopting a system based on the opinions of our members so that each employee can work energetically and in their own way.

Member's Voice

Employee Testimonials


村上 里花

Rika Murakami

Web Designer / Director

I have three children in elementary school, and I am in the middle of parenting.

We have flexible responses, such as adjusting the start time and end time, remote work, etc. I often have to leave early because my child is not feeling well, but I can work with peace of mind thanks to the support of my team members.

More than half of Grune's leaders are women. There's no job she can't do just because she's a woman. Your hard work will be appreciated.

The Environment Where Women background icon Can Play An Active Role

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A women leader was the first to go for a business trip to Bali after the COVID-19 pandemic had settled down. (Overseas Business Trip Blog)

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More than half of the leaders are Women.

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Many men also take advantage of parental leave.

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Even if your life stage changes, you can be active with remote work!

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Menstrual leave was introduced in response to member feedback.

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Attractive Project

Fascinating Projects
and Exciting Environments


We have had several fascinating
international projects for European luxury
brands (watch, car, etc.)


Race, gender and age do not matter.
We promise a return to those who produce results.
Some members even achieved a 200%
salary increase in two years.
Click here for Grune personnel evaluation


Besides Web and Mobile Application
development, there are many 3D, VR, and
AR projects development, and we will focus
on AI services in the future.


Over 150% average sales growth over the last 5 years.
The number of employees doubled from
20 two years ago to 43 today. Within 5 years,
we will exceed 200 people, achieve listing,
and realize further step up.


You have the opportunity to become a leader
from a young age. We are looking for friends
who can enjoy the fun of growing
the company with their power.

Adopted for


Grune capabilities were recognized and selected as part of the acceleration program "G-STARTUP (money forward president Tsuji et al.)" for companies aiming to be unicorns, provided by Globis.

See details of G-STARTUP icon-window

We Received an Official
Recommendation from
the Indonesian Embassy

We choose to establish our development centre for IT services in Southeast Asia, including Indonesia which is currently a rapid growing country.
Grune has received an Official Recommendation from the Indonesian Embassy in Japan as a company that promotes bilateral relations between Japan and Indonesia in the creative field.

See details icon-window

The education business
"Grune IT English" is open

We are offering "Grune IT English", an educational business to improve IT and English skills. Through the course, we want to realize Grune's philosophy of "Cultivating Engineers Who Can Compete Globally."


Job Descriptions

  • You will be involved in system design and development work for the assigned project.
  • After you are fluent in English, you will give instructions to the Indonesian development team. first aim to be able to give instructions to the development team in Indonesia.
    Senior employees will carefully guide you when you have questions or concerns.
  • We have a wide range of projects including web applications, smartphone
    applications, EC sites, network/server design and construction, 3D, VR, and AR.
  • There is also an opportunity to take charge of company management and business proposals (sales). You can level up your career as an engineer.
  • Customer Percentage - Japan: 70%, Europe: 20%, Asia: 10%
  • Currently, contracted development is about 60% but we plan to strengthen our own services in the future.

From CEO

Representative Message

山下 敏義

Toshichika Yamashita

Representative Director, CEO

After graduating from university, I worked as a programmer for a Switzerland-based company in a Germany Branch. I developed business systems, web systems, and mobile applications for European car and luxury watchmakers. After returning to Japan, I became independent and established Grune Co., Ltd. I set up development centers in Asia such as Yogyakarta and Bali, Indonesia.

My hobbies are surfing, hiking, and snowboarding. I want to create an environment where I can enjoy IT development while traveling to mountains and beaches around the world. My mission is to let Grune members work and play to the fullest and enjoy their lives.

Listen to CEO Interview icon-chevron-right Read the CEO Blog icon-window
山下 敏義
山下 敏義
山下 敏義
山下 敏義

Ideal Environment

We Provide The Best Environment
To Work In Joy!

  • All management teams are engineers. We know how engineers work and their way of thinking. Thus, we aim to provide the best development environment for engineers to grow.
  • Let's work comfortably in an office with scenic view with a notebook and 2 monitors for everyone! Vertical monitors are also possible if you want.
  • You can take a nap in our hammock! Full muscle training equipment is also available. You can do muscle training during office hours!
  • We hire only people with good attitudes so everyone can have a good working environment We can work comfortably together only if there are good relationships among coworkers. This is guaranteed by our CEO, Yamashita.
  • You can purchase books you want to read to improve your IT and English skills. The books will be paid by the company. Please improve your skills step by step!
  • We plan to increase the number of foreigners and Indonesian staff staying in Japan and use English as the official conversation language.


We Value Communication
Among Members
and Provide
an Enjoyable Environment!

  • Various in-house events are scheduled to develop a good relationship among members!
  • The cost of company events are paid by the company! You can get a salary while relaxing.
  • Enjoy outdoors activities such as paddleboarding or sauna tents! Let's interact more through fun activities!
  • You can propose a company event! If you have an idea, please suggest anything and let's make it happen together!

Member Interview


本間 隼


本間 隼

General Manager

小浜 夏美


小浜 夏美

Project Manager

Tomas Sullivan

To Build Reliable Systems for The Future

Tomas Sullivan

Project Manager

大寺 志乃


大寺 志乃

Project Manager

村上 里花


村上 里花

Web Designer / Director

Ida Hendra

Building A Strong and Professional IT Team

Ida Hendra

General Manager

Dirga Paradila

Building Something Easy to Use is Difficult

Dirga Paradila

Web Developer

Luqman Hakim

Start Everything With Confidence and Passion

Luqman Hakim

Web Developer

Mavindra Adiyasa

Do Your Best, The Second Chance is Uncertain

Mavindra Adiyasa

Web Developer


Ideal Candidate Profile

The Candidate We Are Looking For

Who Should Apply?

  • Those who want to grow through project management based on English and IT development with the latest technology.
  • Those who want to be an engineer who can play an active role globally.
  • Those who love and a have high motivation for self-study.

Who Should Not Apply?

  • Those who do not want to grow by actively trying to learn by themselves.
  • Those who are not excited about new technology and do not want to jump out from their comfort zone.
  • Those who do not enjoy a rapid growth.


Recruitment Process


Please Contact Us

Feel free to ask anything from the inquiry form.


Meeting While Enjoying
a Cup of Coffee

Let's talk directly while enjoying a cup of coffee at the cafe together
(every Wednesday and Friday: around Sendai station). Feel free to ask anything directly.



If you are interested, please apply.
You can use the inquiry form, call us, or visit us at the office.


Recruitment Interview

We will have a hiring interview. We also perform a technical test if necessary.


Unofficial Offer

It takes about a week from the application to the notification of acceptance or rejection.

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If you are interested in joining Grune,
feel free to ask our CEO, Yamashita.
He will answer all your questions.

Ask Questions icon-chevron-right


Recuitment Important Points


Without Experience: 240,000/Month~
With Experience: JPY 280,000/Month~

[Sendai Member: Salary Examples]
26 years old 2nd working years: 430,000yen/month(bonus twice a year)
22 years old Fresh Graduate: 300,000yen/month(bonus twice a year)

Work Location

  • Sendai Office
    Intellex Building 8F. Honcho, Aoba-ku, Sendai - Miyagi
  • Indonesia: Bali Office
    ※Overseas office are available for those who are interested.


Twice a year. Determined by performance and evaluation.

Salary Increases

Twice a year. Determined by evaluation.

Various Allowance

  • Transportation (Up to JPY 15,000/Month).
  • Overtime Allowance.


  • 2 days/week (Saturday and Sunday), public holidays.
  • Year-end, new year, and summer holidays.
  • 124 days of annual holidays (previous year results).

Qualification Requirements

  • Those who understand the company philosophy.
  • Those who are motivated to learn.
  • Educational background is not required.
  • More than 1 year of programming experience for web and mobile apps (self-study is okay).

Preferred Skills

  • Those who have interest with new technologies.
  • Have experience in IT project definition.
  • English communication skills.
  • PHP, Laravel, CakePHP, Oracle, MySQL, PostgreSQL, HTML, CSS, JavaScript, Flutter, React, Java, Android(Java), iOS(swift), Unity, Unreal Engine, C#, Python, Vue

Employement Status

Contract (fixed terms)/Permanent Employee.
※ Negotiable


  • There is a qualification acquisition incentive (up to JPY 100,000/Year).
  • Various Insurance (health, social insurance, accident insurance, and retirement insurance).
  • English Class.
  • Club Activity.
  • Books purchase support.
  • English conversation lunch.
  • Stock option system

Recruitment Background

We plan to increase our employees due to sales expansion and to manage our own services.
In addition, we will open a new development center in Cebu - Philippines. We need to expand the team on the Japanese side to manage the new development center.

Number of Members

40 People (Japan and Indonesia).


  • Minamisoma, Fukushima
  • Sendai, Miyagi
  • Chofu, Tokyo
  • Yogyakarta, Indonesia
  • Bali, Indonesia

Working Hours

  • Japan 9:00~18:00 JST
  • Indonesia 8:00〜17:00 JST


  • For those who are interested, we also have Bali (with World Heritage Sites) overseas business trips. Let's enjoy traveling abroad together!
  • Development environment: Git, Slack, Chatwork, Bitbucket, CI (Auto Testing, Auto Deployment, etc.), and learn the latest development technology.
  • We are also recruiting new graduates or internships, so do not hesitate to contact us.
  • We value ourselves and others, and we do not judge people by race, appearance, or religion.
  • Dress as you wish, use your favorite hairstyle, and use any name freely. LGBTQ people are of course welcomed.
  • Remote work is possible! It flexibly responds to changes in life stages.

Other Open Positions




Tell me about Grune's personnel evaluations.



What is the average age of the employees?



Is there any rules of what to wear at the office?



Will transportation be paid?



Can I work from Indonesia (Bali)?



What is the minimum score of TOEIC?



When do I need to use English?



Is there any projects that required working in the customer office?



What is the average amount of overtime hours?



Will I be able to participate in the projects I want to work on?



Can I be issued a work VISA to work in Japan?



Can I choose to work from home or come to the office?



What is the business you are focusing on the most right now?



Can I have a side job?


Inquiry Form



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