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Updated 2025-04-23
Activated 2025-04-23

Backend Engineer
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This posting is managed by: bloomtech.inc
Company Name Company is not publicly visible
Job Type
bloomtech.inc
IT (PC, Web, Unix) - Back-End Engineer
IT (PC, Web, Unix) - Fullstack Engineer
Industry Telecommunications/Information Services
Location Asia Japan Tokyo Shibuya

Job Description ■ Main responsibilities
Back-end design, development, and operation of the exchange system
Currency listing: We will implement the listing of crypto assets at the exchange.
Buying and selling function development: We will implement the development of the exchange, such as processing crypto asset buying and selling orders and updating trading rates in real time.
*We also hope to entrust the following tasks to you in stages depending on your experience and skills.

Technical lead for new services and functions
API design and development: We will design and implement RESTful APIs and WebSockets to connect with the front-end and mobile apps.
Project management: We will manage the project schedule and progress while breaking down business requirements into technical requirements.
Collaboration with other departments: We will work with the dealing, settlement, and risk management teams to design interfaces between systems and integrate data.
Technical lead for existing services and functions
Operation and maintenance: We will be responsible for the operation and maintenance of existing services. If there are any problems or inquiries, we will resolve them including technical investigations.
Technical lead and development of the team
Support for members: We will help team members improve their skills through code reviews and technical guidance.
Introduction of technical best practices: Lead improvements to the development process, such as promoting test-driven development and CI/CD.
System operations and incident response
Incident response: Identify the cause of an incident, quickly recover from it, and develop and implement measures to prevent recurrence.
Removal of technical debt and system refactoring
Improving the code base: Promote refactoring and modularization of legacy code to improve code quality and maintainability.
Company Info Since launching its cryptocurrency trading service "Coincheck" in August 2014, Coincheck has provided new financial services that go beyond the framework of existing finance, such as the first IEO in Japan and NFT business, under the mission of "Bringing new value exchange closer to you". Currently, we are also challenging ourselves to create a digital economic sphere in web3 based on blockchain.

Services | Coincheck Co., Ltd. (https://corporate.coincheck.com/service)

However, with the current framework and technology, services based on blockchain technology require extremely high security and performance. These business understanding and risk control are a world where engineers and business people who are familiar with cutting-edge technology can maximize performance.

web3 is the hottest world on the Internet right now. We would like to share with you the moments when various structures change and change. We are looking forward to receiving applications from those who want to create the best experiences with the best members and those who want to see the moment the world changes together.
Working Hours Flextime system
Job
Requirements		 [Required requirements]
3+ years of backend development experience (Ruby on Rails, Go, Java, etc.)
Development experience at an in-house service company

[Preferred requirements]
Experience or qualifications as a tech lead or lead engineer
Broad technical understanding from front-end to back-end
Ability to identify and solve complex technical issues
Experience in project schedule management and prioritization
Communication skills to explain technical concepts in an easy-to-understand manner to the business side
Leadership to lead and motivate a team
Knowledge and experience of crypto assets and blockchain technology
Experience in developing and operating financial systems
Experience in developing and operating high-traffic web services
Understanding and practicing agile development methods (Scrum, Kanban, etc.)
Experience using cloud infrastructure (AWS, GCP, etc.)
Knowledge of security
Japanese Level Business Level(JLPT Level 2 or N2)
Salary JPY - Japanese Yen JPY 8000K - JPY 12000K   
Other Salary
Description		 Social Insurance
Holidays Five-Day Workweek
Winter Holidays
Paid Holidays
Child-care Leave
Job Contract
Period		 Full-time employment
Nearest Station Ebisu, Shibuya-ku, Tokyo
*Hybrid work
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