Senior Software Engineer (Backend/Server)

Job Type
7,000,000 JPY ~ 10,400,000 JPY per year
Japanese Level
English Level
Fluent (TOEIC 990)
Start Date


A Startup AI firm is looking for a Senior Backend Engineer to help create innovative and creative services based on AI.

Successful candidates will join a highly skilled and growing team and should be able to help specify, develop, test, and deploy high-quality backend solutions.



- Taking the lead on architecture and delivering successful projects (I.e. a major feature)

- Guiding and mentoring other engineers in proper engineering practices through code review and pair programming (They code review 100% of PRs using GitHub)

- Defining backend architecture and implementation details of new features in cooperation with other team members including our machine learning teams

- Specifying and developing scalable and high performance cloud infrastructure

- Finding bottlenecks and continually improving system performance

- Constantly improve and stay up to date (within reason) on new and safe technologies to use (They are a startup in a rapidly changing field)


【会社概要 | Company Details】

This venture company provides cutting-edge AI solutions to improve people's quality of work and life. This is a multi-cultural environment with team members from 19 different nationalities.

【就業時間 | Working Hours】
9:00 - 18:00(Mon - Fri)

【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

- Building and maintaining scalable, high-throughput message queue architectures

- Deep understanding of distributed systems

- Building customer-facing cloud-native systems on Google Cloud Platform, Amazon Web Services, or Microsoft Azure

- Strong coding skills in Node.js (TypeScript/JavaScript), Python, or Go

- Automating testing and deployment of containerized applications

- Leading a team of engineers or working independently (though always with someone else supervising/co-owner) on key features

Preferred Skills