Software Engineer (Backend)

Job Type
6,000,000 JPY - 10,000,000 JPY per year
Japanese Level
English Level
Advanced (TOEIC 860)
Start Date


A famous Internet service company is hiring a software engineer for their payment service. Our client's vision is to upgrade the very infrastructure of society with overwhelming levels of convenience, and allow all services to be used simply and securely through a single platform. They believe taking an open approach to working with customers, businesses, financial institutions, local municipalities, and government agencies can help us change the very way people interact with money.

They aim to bring liquidity and innovation to the world of finance, and create new value not just for consumers, but for businesses as well. Their Group consists of highly talented members in project-based teams, and are building a team for each business domain.

They encourage each and every one of their engineers to constantly improve their engineering expertise through active engagement with communities, both inside and outside the company.

【Main Responsibilities】
‐ Developing web applications with Go; API development (No previous Go experience required; our client will provide training)
‐ I/F design between micro services using Protocol Buffers + gRPC
‐ Making service improvements and efficacy judgments based on qualitative/quantitative analysis carried out with user activity logs, etc.
‐ Designing architecture based on the needs of specific applications and selecting middleware
‐ dentifying challenges facing users through surveys/analysis and taking concrete action to solve these challenge
‐ Performance tuning, monitoring, alert correspondence of micro service

【会社概要 | Company Details】
Our client is a fast growing C to C E-commerce company. Their selling application has become one of the largest marketplace in Japan.

【就業時間 | Working Hours】
10:00 - 19:00(Mon - Fri); Flextime

【休日休暇 | Holidays】
Saturday, Sunday, and National Holidays, Year-end and New Year Holidays, Paid Holidays, Other Special Holidays

【待遇・福利厚生 | Services / Benefits】

各種社会保険完備(厚生年金保険、健康保険、労災保険、雇用保険)、 屋内原則禁煙(屋外に喫煙所あり)、 通勤交通費支給等

Social insurance, Transportation Fee, No smoking indoors allowed (Designated smoking area), etc.

Required Skills

‐ Knowledge and experience in web application development (experience developing in Go is not required)
‐ Experience designing schemas and creating efficient queries for databases
‐ Experience operating web applications and conducting performance tuning, knowledge in security
‐ Experience selecting middleware and designing software architecture
‐ Ability to take ownership and lead the software development process

Preferred Skills

‐ Experience developing and operating using Go and GCP
‐ Experience developing and operating large-scale, high traffic system
‐ Experience establishing new services and tackling the challenges in the growth phase of a service
‐ Experience managing and leading developers
‐ Experience improving the development process
‐ Experience in statistical data analysis