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Updated 2021-05-15
Activated 2021-05-07

[No Japanese required] Backend engineer / PHP or Ruby * Teleworking in progress
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  • ★★ Staff Level
  • Women Welcome
  • No transfer
  • No Age Restriction
This posting is managed by:
j Career Co.,Ltd. / 株式会社 j Career
Company Name Company is not publicly visible
Job Type
j Career Co.,Ltd. / 株式会社 j Career
IT (PC, Web, Unix) - Web Application SE
IT (PC, Web, Unix) - Programmer
IT (PC, Web, Unix) - Business Application SE
Location Asia Japan Tokyo Shibuya

Job Description We are looking for a backend engineer who has a high degree of ownership and can accelerate the rear architect.
We have been providing SaaS for over 3 years.
Among them, we have some legacy products that are the core of our business.
We are currently in the process of needing an architectural replacement from monoliths to microservices.

There are two main expectations for this position.

1) Support for legacy products (PHP / Ruby)
Maintaining and replacing legacy products requires persevering effort.
The documentation may be incomplete or the engineer may need to dig deeper into the code to resolve the issue.
We are looking for people who can spare no effort and be patient with the product.
To be clear, we never downplay such efforts.
We know that we have legacy products that are at the core of our business, and that our business is running properly.

2) Always learning new technologies (e.g golang) and constantly finding ways to solve problems and requirements.
WealthPark, on the other hand, went from legacy to modern to expand its business and realize its mission.
I would like to rebuild the architecture.
We look forward to those who understand existing products, but are constantly learning new technologies and finding ways to solve their challenges and requirements in order to contribute to the new architecture.
The programming language will be mainly golang.
However, we are a very flat organization / team.
Therefore, you are free to propose architectures and technology stacks.

If you can meet the above two expectations, or if you find it attractive, please improve our architecture.
I would like you to get involved.

[What I want you to do]
・ Think about strategies to realize our Vision and Mission, and work on the realization as a team.
-Brainstorming with product managers, designers, backends, and frontend engineers, Design Sprint, and Event Storming to build new functions and architectures.
-Maintenance and improvement of existing products (mainly PHP (Monolith) and Ruby (API)).
-Develop new APIs using Go, node.js, etc. and improve the architecture.
Company Info A global IT startup aiming for a digital infrastructure for alternative assets.
Currently, we support the [Wealth Management Business] and [SaaS Business].

"Real Estate x DX" currently being developed is an important pillar that supports our company.
We will continue to accelerate business expansion in the future.
However, for those of us who are looking to the world, it is not limited to "real estate x DX".
From now on, art, collectibles, wine, laundromat, solar power generation, etc.
We will liquidate all assets with technology.
The future we have set up and envisioned is beyond that.

In April 2019, we completed a series A round of 540 million yen, and in August 2020, we completed an additional 907 million yen in series B round.

It is a lively environment where not only Japanese but also English, Mandarin, Cantonese, etc. are spoken.
The engineering department does not care about Japanese and has an English environment.

Due to the characteristics of our business, which requires professionals from various industries such as IT, finance, and real estate, members from investment banks, investment funds, listed real estate companies, major Internet companies, etc. have gathered.

The bases are Tokyo, Shanghai, Taipei, Hong Kong and New York.

・ No smoking indoors
Working Hours 10: 00-19: 00 * Flextime system (core time 11: 00-16: 00)
60 minutes break
[Required skills and experience]
Technology, experience skills
・ 3 years or more of PHP or Ruby development experience or equivalent or higher skills
・ Framework development experience with PHP (Symphony) or Ruby or Python (Flask)
・ Those who have experience in developing Web API
・ Web API interface design experience
・ Experience in designing RDB tables and queries
・ Experience using CI / CD tools such as Jenkins
・ Willingness to continuously learn new technologies such as Golang

Soft skills
・ Those who like to develop in an organization or team
・ Those who can make decisions by weighing some conflicting constraints in a fast-moving, fast-growing company
・ Those who can continuously learn new technologies and find ways to solve problems and requirements
・ English skills (those who want to improve their English skills through work even if their current English is not perfect)
❝ It's okay if you don't mind speaking in English. If you are uneasy, feel free to check during casual talks and interviews!

[Welcome skills and experience]
・ Development experience in Golang
・ Experience using nosql such as MongoDB
・ Experience in operation and maintenance of various cloud infrastructures centered on AWS
・ Experience using orchestration tools such as containers, Docker, and Kubernetes
・ Those who have a deep understanding of OAuth and open id connect

[Personal image you want]
・ Those who are motivated to create new businesses and have the ability to solve problems
・ Those who are interested in fintech, real estate tech companies, and the global work environment
・ Those who can work together as a team
English Level Business Conversation Level (TOEIC 735-860)
Japanese Level None
Salary JPY - Japanese Yen JPY 5000K - JPY 10000K   
Other Salary
The salary conditions will be decided in consideration of the salary of the current job (previous job).
Fully equipped with social insurance
Transportation expenses (according to company regulations)
・ With Visa support
・ Lending for dual display applicants
・ Mobile phone for business use
・ Twice a year
・ Annual salary system
・ Extra payment including 35 hours of deemed overtime allowance
・ In-house events (New Year party, year-end party, etc.)
・ Welcome lunch * Currently canceled
You can listen to the secret story of the founding while eating at the restaurant selected by the CEO, and talk about what you want to achieve in our company and in your life.
Holidays Complete weekly two-day system (Saturdays, Sundays, national holidays)
Summer vacation
Winter vacation
paid holidays
Condolence vacation
Parental leave
Postpartum leave
special vacation
120 days or more of annual holidays
Job Contract
Full-time employee Trial period: 3 months (There is no change in conditions during the trial period)
Nearest Station ・ JR Yamanote Line Ebisu Station; 3 minutes walk from the east exit ticket gate
・ Tokyo Metro Hibiya Line Ebisu Station; 5 minutes walk from the ticket gate

Please apply from here



j Career Co.,Ltd. / 株式会社 j Career

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[No Japanese required] Backend engineer / PHP or Ruby * Teleworking in progress