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| 雇用形態 | 正社員 |
|---|---|
| 給与 | 650万円〜1040万円（年収 6,500,000 円 - 10,400,000円 ※1. Job allowance is a fixed overtime pay for 40 monthly hours. ※2. Overtime beyond 40 hours is paid separately. ※3. Annual salary is based on skills, experience, and current pay. ） |
| 勤務地 | 東京都 |
| 勤務地詳細 | 東京都中央区銀座７丁目16－12 Ｇ-７ビルディング８階 ※勤務地変更範囲：会社の定める就業場所 【アクセス】 ・東銀座駅徒歩5分（日比谷線・浅草線） ・銀座駅徒歩6分（銀座線・丸の内線） ・新橋駅徒歩9分（JR） ・築地市場駅徒歩3分（大江戸線） ・汐留駅徒歩8分（ゆりかもめ） |
| 職種 | フロントエンドエンジニア・コーダー TypeScriptエンジニア Senior Software Engineer 【Eng-028】Senior Software Engineer ITエンジニア |
| 業種 | ソフトウェア・情報処理 IT通信インターネット |
| 勤務時間 | ■勤務時間 ・Flextime system (core time 11:0016:00) ・Break time: 60 minutes during working hours |
Requirements
7+ years of professional software engineering experience.
Significant experience with TypeScript.
2+ years of hands-on work with React (or a similar modern frontend framework).
Strong understanding of backend frameworks, database modeling (SQL/Prisma), and asynchronous app architecture.
Proficiency collaborating across functions (product, design, operations, and stakeholders).
Track record of delivering production systems with an emphasis on scalability, reliability, testability, and maintainability.
Familiarity with modern development workflows: Git, PR reviews, CI/CD, and automated testing.
Be located in, or be willing to relocate to, Japan (we will support relocation).
Nice to haves
While not specifically required, tell us if you have any of the following.
Experience with our specific stack: NestJS, Prisma, PostgreSQL, AWS.
Development and operation using containers (e.g. Docker).
Cloud infrastructure experience (e.g. AWS or GCP).
Familiarity with AI-assisted development workflows (e.g. Claude Code, Cursor).
Experience building B2B or enterprise SaaS products.
Conversational-level Japanese.
（業務経験1年以上）
About the position
We're looking for a Senior Software Engineer who is passionate about building reliable, scalable, and maintainable systems from backend business logic to frontend user experiences.
You'll work primarily with TypeScript, with React / Next.js on the frontend and NestJS / Prisma on the backend. You'll collaborate closely with both engineers and non-engineers (product, design, biz/ops) to ship features that power the core of our product for some of Japan's largest enterprise customers.
Our Tech Stack
Not exhaustive, but the most important are:
TypeScript everywhere;
Node.js;
NestJS / Prisma / PostgreSQL on the backend;
React / Next.js on the frontend, React Native (Expo) on mobile; and
AWS (EKS, S3, Lambda); and
Redis.
Responsibilities
Design and deliver features end-to-end across the stack (frontend, backend, architecture).
Take ownership of technically challenging projects, such as refactoring, complex data modeling, or new platform integrations.
Drive improvements in system reliability, performance, and maintainability.
Mentor other engineers and champion high standards in code quality and architecture.
Participate in support rotations to investigate bugs and incidents.
We value engineers who care deeply about technical quality, end-user experience, and long-term stability not just shipping tickets fast.
How we use AI in development
We are bullish on AI as a development tool, and provide free usage of AI tools like Claude Code for our engineers. We have an internal AI task force responsible for policy, guidelines, oversight, and technology in order to empower our engineers to use AI safely and efficiently.
Requirements
7+ years of professional software engineering experience.
Significant experience with TypeScript.
2+ years of hands-on work with React (or a similar modern frontend framework).
Strong understanding of backend frameworks, database modeling (SQL/Prisma), and asynchronous app architecture.
Proficiency collaborating across functions (product, design, operations, and stakeholders).
Track record of delivering production systems with an emphasis on scalability, reliability, testability, and maintainability.
Familiarity with modern development workflows: Git, PR reviews, CI/CD, and automated testing.
Be located in, or be willing to relocate to, Japan (we will support relocation).
Nice to haves
While not specifically required, tell us if you have any of the following.
Experience with our specific stack: NestJS, Prisma, PostgreSQL, AWS.
Development and operation using containers (e.g. Docker).
Cloud infrastructure experience (e.g. AWS or GCP).
Familiarity with AI-assisted development workflows (e.g. Claude Code, Cursor).
Experience building B2B or enterprise SaaS products.
Conversational-level Japanese.
What makes this role compelling
A diverse team of strong engineers. Engineers from 12+ countries bring diverse perspectives and skills.
High-growth, real-world impact. ProOne is a vertical SaaS product developed by Meetsmore growing rapidly in Japan's service industry. Your work directly impacts how thousands of businesses operate daily.
■職種 / 募集ポジション
Senior Software Engineer
■求人タイトル
【Eng-028】Senior Software Engineer
■雇用形態
正社員
■給与
年収 6,500,000 円 - 10,400,000円
※1. Job allowance is a fixed overtime pay for 40 monthly hours.
※2. Overtime beyond 40 hours is paid separately.
※3. Annual salary is based on skills, experience, and current pay.
■勤務地
東京都中央区銀座７丁目16－12 Ｇ-７ビルディング８階
※勤務地変更範囲：会社の定める就業場所
【アクセス】
■勤務時間
■受動喫煙対策
No Smoking
■仕事についての詳細
About the position
We're looking for a Senior Software Engineer who is passionate about building reliable, scalable, and maintainable systems from backend business logic to frontend user experiences.
You'll work primarily with TypeScript, with React / Next.js on the frontend and NestJS / Prisma on the backend. You'll collaborate closely with both engineers and non-engineers (product, design, biz/ops) to ship features that power the core of our product for some of Japan's largest enterprise customers.
Our Tech Stack
Not exhaustive, but the most important are:
TypeScript everywhere;
Node.js;
NestJS / Prisma / PostgreSQL on the backend;
React / Next.js on the frontend, React Native (Expo) on mobile; and
AWS (EKS, S3, Lambda); and
Redis.
Responsibilities
Design and deliver features end-to-end across the stack (frontend, backend, architecture).
Take ownership of technically challenging projects, such as refactoring, complex data modeling, or new platform integrations.
Drive improvements in system reliability, performance, and maintainability.
Mentor other engineers and champion high standards in code quality and architecture.
Participate in support rotations to investigate bugs and incidents.
We value engineers who care deeply about technical quality, end-user experience, and long-term stability not just shipping tickets fast.
How we use AI in development
We are bullish on AI as a development tool, and provide free usage of AI tools like Claude Code for our engineers. We have an internal AI task force responsible for policy, guidelines, oversight, and technology in order to empower our engineers to use AI safely and efficiently.
Requirements
7+ years of professional software engineering experience.
Significant experience with TypeScript.
2+ years of hands-on work with React (or a similar modern frontend framework).
Strong understanding of backend frameworks, database modeling (SQL/Prisma), and asynchronous app architecture.
Proficiency collaborating across functions (product, design, operations, and stakeholders).
Track record of delivering production systems with an emphasis on scalability, reliability, testability, and maintainability.
Familiarity with modern development workflows: Git, PR reviews, CI/CD, and automated testing.
Be located in, or be willing to relocate to, Japan (we will support relocation).
Nice to haves
While not specifically required, tell us if you have any of the following.
Experience with our specific stack: NestJS, Prisma, PostgreSQL, AWS.
Development and operation using containers (e.g. Docker).
Cloud infrastructure experience (e.g. AWS or GCP).
Familiarity with AI-assisted development workflows (e.g. Claude Code, Cursor).
Experience building B2B or enterprise SaaS products.
Conversational-level Japanese.
＜What makes this role compelling＞
A diverse team of strong engineers. Engineers from 12+ countries bring diverse perspectives and skills.
High-growth, real-world impact. ProOne is a vertical SaaS product developed by Meetsmore growing rapidly in Japan's service industry. Your work directly impacts how thousands of businesses operate daily.
■受動喫煙対策
No Smoking
Senior Software Engineer
■事業内容
「ミツモア」「プロワン」「ハッチュー」の開発と運営
サービスページ
ミツモア：https://meetsmore.com/
プロワン：https://pro-one-cloud.com/
ハッチュー：https://lp.hatch-u.com/
■本社所在地
東京都中央区銀座7-16-12 G7ビルディング8階
■代表者氏名
石川 彩子
■設立
2017年2月8日
■資本金
1億円
■従業員人数
250名
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