Web Application Engineer (New graduates)

  • Tokyo
  • Partial Remote
  • Full-time
  • April 20, 2023
5,040,000 JPY or more/yr
Apply from Japan Only
(You must live in Japan to apply)
Language Requirements
Japanese: Conversational
English: Business Level
Minimum Experience
New Grad or above

Web Application Engineer (new graduate, class of 2024)


Turning encounters into innovation


Our world is built on encounters; they are the very basis of society. People encounter people. Companies encounter companies.

We believe these connections bring innovation, which in turn leads to new ways of working and doing business.

By developing innovative products, we change how people and companies value their encounters and even change how those encounters take place.


Become business infrastructure


Transport networks, electrical grids, the internet. These are some of the roads of society.

We believe another road is possible. A new form of infrastructure for the business world.

This road connects people with people, companies with companies, and turns everyday business into innovation.

We aim to be that new road, that business infrastructure.

Products and services

Sansan – The sales DX solution

Eight – Manage your contacts and your career

Bill One – Cloud-based invoice management solution


mimi blog

About this position

We are seeking passionate and driven international engineers to join our Tokyo-based global engineering team. 

Sansan is Japan’s leading business card-based contact management solution for corporations, and one of Japan's leading SaaS products. With over 80% market share in Japan, we are expanding globally. We continue to build a multinational global team within the engineering division. The global team is principally focused on building new features for a global audience, as well as supporting the effective localization of the product as a whole.

We seek motivated and ambitious software engineers to apply and enhance their skills. They will deeply understand and improve our products and their features, integrating and scaling them for new markets, and placing user experience and needs first.

Work Responsibilities

As a software engineer, you’ll work on web application development for our products. We provide the Sansan B2B service powering digital transformation in companies, the Eight career management app for individual professionals, Bill One for cloud-based invoice management, and Contract One for cloud-based contract management. You will likely be involved with one or more of these.

Job Description

    • Participate in backlog grooming, sprint planning, and retrospectives

    • Develop, code review, test, and release features that mainly impact Sansan’s global customers

    • Design database tables and develop migration scripts 

    • Receive and integrate mentorship and feedback from experienced engineers

    • Take part in learning sessions on our products and technologies

Required Skills

  • Bachelor’s, Master’s, or doctorate in a field involving computer science, software engineering, computer engineering or technology and with an emphasis on software development

  • Demonstrable proficiency with an object-oriented language (e.g., C#, Java, C++)

  • Demonstrable knowledge of object-oriented design and development

  • Write clean, maintainable and tested code

  • Design domain models, database schemas and system architecture

  • Confidence and a forward-looking understanding of user expectations and needs

  • Proactive and motivated to learn and improve your craft

Preferred Skills

  • Experience with web development using the following or similar technologies: Java/Kotlin, Typescript, React, RDBMS (PostgreSQL)

  • Experience working with a cloud platform (preferably GCP or AWS)

  • Experience working in a team, doing code reviews, using Gitflow, and releasing your own code

Language Requirements

  • English: Native or fluent written and spoken 

  • Japanese: Minimum of conversational ability (equivalent to JLPT N4 or above level but not certification required)

Employee Empowerment (Benefits)

Sansan has a strong reputation of being a progressive company that embraces new styles of working. We offer a wide range of programs to support employees. They include the following.

  • Know Me - Company subsidizes eating/drinking out bringing together colleagues from different teams

  • Geek Seek - We pay for work-related books, hardware and software you request.

  • Ocean - Subsidized language lessons

  • H2O - Subsidized rent for employees living within 2 train stops of Omotesando or Shibuya stations in Tokyo

  • M2O - Subsidized moving allowance if new graduates move to H2O area  

  • Donicho - Weekdays can be taken off in exchange for working on weekends/holidays

  • Oyaco - Subsidies for services supporting employees with children (up to elementary 6th grade) in balancing their work with the needs of raising their children

  • Charge Leave - 3 consecutive paid days off between July and October (not deducted from paid holiday allowance)


  • Relocation

  • Acquiring a Japanese work visa

Employment Status

  • Full-time

  • Probation period: 6 months (with full pay and benefits)

Office location

  • Head Office  – Aoyama Oval Building 13F, 5-52-2 Jingumae, Shibuya-ku, Tokyo 150-0001, Japan

Remote work policy

  • Employees can work remotely in part, but must live in Japan. 

  • Employees must work at the office at least (A) three times per week or (B) one time per week. 

  • A: Eligible to receive housing allowance (H2O), to have your own desk in the office.

  • B: Not eligible to receive housing allowance (H2O),  can use hotdesk areas when you work in the office.  

  • Both A and B, employees can come to the office more than three/one day if they want.

Work Hours

  • Full flextime (core hours are 10 a.m. - 4 p.m. JST)


  • Weekends and national holidays

  • Annual paid leave

  • Year-end holiday

  • Summer holiday

  • Marriage and bereavement leave


  • Bachelor: 360,000 yen/month~ (expected annual pay approx. 5.04 million yen)

  • Master or Doctor: 380,000 yen/month~ (expected annual pay approx. 5.32 million yen) 

  • Pay raises: Annual

  • Bonus: Twice per year

Insurance and pension

  • Social health insurance

  • Social pension

  • Industrial accident compensation insurance

  • Employment insurance

With the mission of 'Turning encounters into innovation', Sansan provides two key business card-based services: the eponymous 'Sansan'; a contact management solution for corporations, and 'Eight'; a professional networking solution for individuals. Sansan develops advanced technology to turn its users' business cards into powerful, shareable, and actionable data.

Sansan – The database to power your sales

Sansan digitally transforms sales. The combined forces of an unparalleled corporate database and a company's contact database let users uncover hidden business opportunities. Corporate information including industry, number of employees, revenue, and job roles can be used for sales and marketing efforts. Information gained from direct customer contacts, such as business card exchanges, e-mails, and meetings, is digitized with high accuracy and stored in the cloud contact database. The combined data can be used to uncover other chances to do business. Moreover, integrating data in Sansan with third-party systems enables data to be put to even wider use, such as for strengthening corporate governance.

Eight - Manage your contacts and your career

Eight is a business card organizer and professional networking platform. Launched in 2012, Eight now has more than 3 million users. Using both paper and online business cards as the building blocks, Eight puts users’ entire professional networks at their fingertips. Paper business cards are scanned using a proprietary combination of OCR technology and secure human input to digitize each card into a unique Eight profile.
In addition to its contact management abilities, Eight lets users network with each other and expand their career and business opportunities. Users scan their own card to automatically generate their Eight profile. They can then showcase their skills, share news and updates with their Eight network, join events, find job openings, and seek talent.

Sansan's policies during COVID-19 are as follows:

  • First and second interviews are being conducted remotely.
  • Employees are working remotely.
View Sansan's company page

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