Back End Engineer

Tokyo
Remote OK
Full-time
December 14, 2020

Job Description

We are looking for an engineer with a strong background in developing and scaling distributed systems. You will be a core member of a diverse and international development team composed of seasoned professionals.

Our stack

We are developing a single page application built with React and TypeScript while the backend API is implemented with the Django framework. Our backend stack is based on PostgreSQL, Redis and runs on AWS.

What you’ll do

Foster strong collaboration among team members and help them solve problems.
Architect and develop optimal solutions to complex problems.
A key contributor to the overall system and software development life-cycle process.
Build and maintain scalable applications.
Monitor, test and continuously optimize your designs.
Deliver modern, testable and maintainable code.
Collaborate with a variety of different roles such as machine learning engineers, quality assurance, product owners, designers, and analysts.

Who you are

These are not hard guidelines, but rather we’re looking for someone with some combination of the below. When applying, let us know which of these you have, and we’ll decide if you’re a match.

You would ideally have a strong proficiency in Python.
You are experienced working with Python web frameworks, preferably Django.
Efficient at writing and profiling/analyzing SQL queries, with a preference for PostgreSQL.
You have a minimum of five years of experience in professional software development.
Ability to quickly adapt to new environments and challenges.
You are ideally an experienced user of workflow software, for example with JIRA and Confluence and agile process in general.
Experience working with JavaScript, as well as TypeScript. Ideally, you have experience with React.
You have experience with continuous delivery and automated testing.
You are experienced in operating cloud-based computing infrastructure.
You have ideally worked on customer-facing products at scale.
You have excellent analytical and problem-solving skills.
You have excellent communication ability both verbally and in writing.
You value team success over personal success.
You are passionate about coding, and would ideally be a contributor to open source projects.
You would ideally have a degree in Computer Science or a similar field.

APPLY NOW ➜🇯🇵 Residents Only

About Cooori

Cooori creates an artificial intelligence-driven educational platform that focuses on efficiency. Our first product using the platform is an English language learning product aimed at improving TOEIC scores for employees of companies.

As Cooori founder Dr. Arnar Jensson continued to research and experiment with AI-based language learning technology, he decided that his mission was to build an efficient language learning system to help people and contribute to society. Educated in Japan, Germany, and Russia, co-founder Dr. Eythor Eyjolfsson is a fluent linguist in seven languages, and he has brought passion and expertise to Cooori, as he has over 30 years of experience building businesses in Japan and elsewhere.

Cooori has also partnered with Toyota Technological Institute of Chicago in order to develop increasingly advanced AI technologies. Dr. Sadaoki Furui, professor emeritus of the Tokyo Institute of Technology and a recipient of the Japan Cultural Merit Award, has had a profound impact on Arnar Jensson’s life as an engineer and businessman. In 2017, Cooori began working with the Toyota Technological Institute at Chicago in the field of technology development for AI systems. The partnership with the university, which is at the leading edge of the field of information technology, will challenge the development of more advanced AI.

Products developed by Cooori

・Proprietary and patented AI systems used for efficient learning
・Personalization system for creating exercise questions for each user
・Easy to learn anywhere and anytime using a PC, tablet, or cell phone
・Combination of AI-supported online learning and human touch counseling
・Hybrid learning systems
・Comprehensive data dashboard for users, counselors, teachers, and HR specialists

Japanese Language Policy
It is not a requirement to speak Japanese for developers at Cooori, although it is certainly a plus. Some positions such as Sales require Japanese; however, everyone in the company is able to speak English.
Paid Leave
- Weekends (Saturday and Sunday), Japanese national holidays, New Year’s holiday
- 26 days paid vacation days including March 30th which is Cooori’s foundation day.
Benefits
🍹 Free dinner and drinks when we celebrate

👩‍🎓 Education stipend. We buy the books, courses, and other resources you need to continue learning and developing.

🍔 Free Friday team lunches

💻 The latest equipment - computer, monitor, etc. needed for your job.

🚃 Full transportation coverage

🏥 Health insurance

💜 Social security / insurance benefits included
Engineer Interview Process
Engineering Jobs

(1) Document screening

We will contact you if you are able to proceed to the interview stage.

(2) Interview

We will set up around 5 interviews. Depending on the situation, some of the interviews will be online or on-site.
- The first interview is an overall technical check with the lead software engineer. (online) We ask candidates to complete a small project before moving on to the second interview.
- The second interview involves explaining the project, and getting feedback on the assignment. (online)
- The third interview is a casual meeting with the dev team members. (online or on-site depending on the situation)
- The fourth interview is a discussion with the founder who is the CTO / PM. (online or on-site depending on the situation)
- The fifth interview is a short chat with the CEO. (usually online)
Work style
- Our culture could be described as Scandinavian, meaning we rarely work overtime and instead we get things done during work hours.
- We like vacations and encourage employees to take advantage of them in order to maintain fresh minds.
- We are proud to foster a workplace free from discrimination. We strongly believe that a diversity of experiences, perspectives, and backgrounds lead to a better environment for our employees and a better product for our users.
- Once COVID-19 is over we will allow some remote work. The policy has not been fully defined, as of December 2020.
Tech Stack
We are developing a single page application built with React and TypeScript while the backend API is implemented with the Django framework. Our backend stack is based on PostgreSQL, Redis and runs on AWS.
Team Culture
- We welcome ideas wherever they come from, treat them equally, and use collective intelligence from our team in order to define and design all parts of our service.
- We emphasize making development decisions using analytics.
- We minimize report meetings, and instead we treat meetings as work sessions where minutes are kept and decisions are made collectively and followed upon.
Team Member

The Product Team (10x)

1x Product manager / CTO

1x Product manager assistant

1x Lead software engineer

1x Backend engineer

1x Frontend engineer

2x Machine learning engineers

1x Content manager

1x Designer

1x QA

Sales Team (4x)

1x Sales Director

3x members

Customer Success Team (3x)

1x Customer Success Director

2x members

Upper Management (3x)

1x CEO

1x CFO

1x HR / Accounting