Software Engineer, Backend - Merpay

Posted 13 Hours Ago
Be an Early Applicant
Japan
Mid level
AdTech • Marketing Tech
The Role
As a Backend Software Engineer at Merpay, you will handle microservice and API development in Go, design architecture based on application needs, and perform monitoring and performance tuning of web applications, while also analyzing user behavior to improve services.
Summary Generated by Built In

Description

JD in Japanese follows. 英文の後に和文JDをご覧いただけます。

Introduction

Circulate all forms of value to unleash the potential in all people

"What can I do to help society thrive with the finite resources we have?" The Mercari marketplace app was born in 2013 out of this thought by our founder Shintaro Yamada as he traveled the world. We believe that by circulating all forms of value, not just physical things and money, we can create opportunities for anyone to realize their dreams and contribute to society and the people around them. Mercari aims to use technology to connect people all over the world and create a world where anyone can unleash their potential.For more information about Mercari Group’s mission, see .

Equal Opportunity Hiring

Here at Mercari, we work to realize a world in which no one’s potential is limited by their background and everyone has the opportunity to freely create value. We also firmly believe that a mindset of Inclusion & Diversity is essential for us to achieve our mission.This, of course, extends to our hiring practices as well. Mercari is committed to eliminating discrimination based on age, gender, sexual orientation, race, religion, physical disability, and other such factors so that anyone who shares our mission and values can join us, regardless of their background. For more details, please read our .

Position Overview

Working at Merpay

Merpay is home to some of the greatest experts within Mercari Group. Our commitment to a culture of openness allows members to discuss architecture on Slack channels organized by business domain, send pull requests to each other on GitHub, and share knowledge on the internal Wiki. We hold “Go Friday” and other weekly study groups for engineers but open to all, encouraging engineers to help one another grow. Some members have no experience developing in Go before they join, but we help turn them into Go enthusiasts early on through involvement in our internal Go community and “Gopher Dojo,” our short-term, intensive training. Members further develop their expertise while demonstrating their abilities at both internal and external engineering community events.

Work Responsibilities

  • Handle microservice and API development in Go
  • API/interface design for microservices using Protocol Buffers and gRPC
  • Improving services and measuring effectiveness using quantitative and qualitative analysis on user behavior logs, etc.
  • Design architecture and select middleware based on application requirements
  • Microservice performance tuning, monitoring, and alert handling

Development Environment

  • Programming languages: Go
  • Infrastructure: Google Cloud Platform (Compute Engine, Kubernetes Engine, Spanner, Cloud SQL, Storage, Stackdriver Logging, Dataflow, Pub/Sub, etc.)
  • Configuration management tools: Terraform
  • Analysis Platform: BigQuery / Looker / Data Studio
  • Monitoring: Stackdriver Monitoring / Datadog / PagerDuty / Sentry
  • CI/CD: Circle CI / Spinnaker
  • Knowledge Tool: Crowi / Confluence
  • Other: GitHub / Slack
  • Development Method: Agile (Scrum, Kanban, etc.)

Required Experience

  • Shared belief in Merpay’s mission and values
  • Knowledge and experience in web application development
  • Experience designing schemas and creating efficient queries for databases (such as RDB, NoSQL, etc.)
  • 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 Experience

  • 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 as developer lead or management / experience improving the development process
  • Experience in statistical data analysis


Language Requirements

  • Japanese: Independent (CEFR - B2)
    * For details about CEFR, see

Related Articles

  • (only available in Japanese)
  • (only available in Japanese)
  • (only available in Japanese)
  • (only available in Japanese)


Working Conditions
Employment Status

Full-time

  • Probationary period: First 3 months after joining the company. (During this period your contract conditions will be the same as that of a permanent employee.)

Office

Roppongi

  • Smoking is prohibited within our offices
  • Mercari has introduced a work style policy called “.” Each member is free to choose whether they want to work in the office or work fully remote. *Exceptions made for certain kinds of work.

Work Hours

  • Full flextime (no “core time” or “flex time”)
    *Does not apply to all positions

Holidays

  • Two days off per week (as well as national holidays, New Year's break, etc.)
  • Paid leave, congratulatory and bereavement leave, relax days, sick leave

Salary

  • Annual salary paid in 12 monthly installments (including fixed overtime allowance)
  • Based on skills, experience, and abilities
  • Reviewed twice a year


Benefits

  • Complete health and social insurance
  • Incentive program
  • Support systems, including those that benefit the employee’s family members
    .


Support

  • Relocation support
  • Language learning support
  • Translation/interpretation support
    .


Media

Corporate Sites

  • [Japanese]


Owned Media

はじめに

あらゆる価値を循環させ、あらゆる人の可能性を広げる

「地球資源が限られているなか、より豊かな社会をつくるために何ができるか」。2013年、創業者の山田進太郎が世界一周の旅で抱いた課題意識から、フリマアプリ「メルカリ」は生まれました。私たちは、物理的なモノやお金に限らずあらゆる価値を循環させることで、誰もがやりたいことを実現し、人や社会に貢献するための選択肢を増やすことができると信じています。

テクノロジーの力で世界中の人々をつなぎ、あらゆる人の可能性が発揮される世界を実現していきます。メルカリグループの目指すべき方針についてはをご覧ください。

選考における機会の平等

メルカリでは、バックグラウンドによって個人の可能性が決めつけられることなく、自由に価値を生みだす機会を手にできる社会の実現を目指しています。そしてメルカリがミッションを実現するために「Inclusion & Diversity」という考え方は不可欠な存在だと考えています。採用活動においても、メルカリのミッション・バリューに共感する、様々なバックグラウンドの方にジョインしていただけるよう、年齢、性別、性的指向、人種、宗教、身体能力、その他記号に基づくあらゆる差別をなくすことを約束します。詳しくはをご覧ください。

募集要項
業務内容

  • 働き方
    • メルカリグループの中でも極めて専門性の高いメンバーが集結し、事業ドメイン毎にチームを組成しています。Slack上でアーキテクチャのディスカッションをし、GitHubでPull Requestを送り合い、社内Wikiでナレッジを共有しあうオープンな社風です。Go Fridayなど社内のメンバーであれば誰でも参加できるエンジニア向けの勉強会を週次で開催していて、エンジニア同士で技術を高め合っています。入社する以前に、GoでWebアプリケーションを開発した経験がないメンバーもいますが、社内のコミュニティや、gopher道場という短期集中講義によって早期にGopher化しています。各自の専門性を活かして社内ならびに社外のエンジニアコミュニティに対してプレゼンスを発揮しながら、さらに専門性を高めています。
  • 職務内容
    • GoによるMicroservice開発、API開発
    • Protocol Buffers + gRPC を用いたマイクロサービス間のI/F設計
    • ユーザーの行動ログなどの定量的・定性的な分析による施策の効果測定とサービス改善
    • アプリケーション要件に基づいたアーキテクチャの設計、ミドルウェアの選定
    • マイクロサービスのパフォーマンスチューニング、モニタリング、アラート対応
  • 開発環境
    • 開発言語:Go
    • インフラ: Google Cloud Platform(Compute Engine, Kubernetes Engine, Spanner, Cloud SQL, Storage, Stackdriver Logging, Dataflow, Pub/Sub, etc.)
    • 構成管理ツール: Terraform
    • 分析基盤:BigQuery / Looker / Data Studio
    • モニタリング:Stackdriver Monitoring / Datadog / PagerDuty / Sentry
    • CI/CD:Circle CI / Spinnaker
    • Knowledge Tool:Crowi / Confluence
    • その他:GitHub / Slack
    • 開発手法: Agile (Scrum, Kanban, etc.)


必須条件

  • メルペイのミッションとバリューへの共感
  • Webアプリケーション開発の知識と経験
  • DB(RDB, NoSQL, etc)におけるスキーマの設計、効率的なクエリ作成
  • Webアプリケーションの運用/チューニング経験、セキュリティの知識
  • ソフトウェアアーキテクチャの設計とミドルウェア選定の経験
  • オーナーシップを持ってソフトウェアの開発を進める力

歓迎条件

  • Go、GCPでの開発・運用経験
  • 大規模トラフィックシステムの開発・運用経験
  • 新規サービスの立ち上げやサービスの成長期におけるチャレンジの経験
  • 開発者のリードやマネジメント、プロセス改善の経験
  • 統計的手法を背景としたデータ分析の経験


語学力

  • 日本語:Independent (CEFR - B2)
    ※ CEFRの詳細については、をご覧ください

記事


雇用条件
雇用形態

正社員

  • 試用期間:入社後3ヶ月(本採用と同条件) 


オフィス

六本木

  • 受動喫煙対策: 屋内全面禁煙
  • メルカリには「」というワークスタイルに関する制度があります。オフィス出社をすることも、フルリモートワークを選択することも自由に選択することができます。※一部職種を除く


勤務時間

  • フレックスタイム制(コアタイムなし・フレキシブルタイムなし)
    ※一部職種を除くため、ご応募の際にお問合せください。


休日・休暇

  • 完全週休2日制(祝祭日、年末年始 等)
  • 有給休暇、慶弔休暇、リラックス休暇、Sick Leave


給与

  • 月給制(固定残業代含む)
  • スキル・経験・能力に応じて決定いたします
  • 毎年2回見直し 


ベネフィット 

  • 各種社会保険完備
  • インセンティブ制度
  • 社員の家族を含めた支援制度
    ※ 詳しくはのページをご覧ください。


サポート 

  • リロケーションサポート
  • 言語学習のサポート
  • 翻訳と通訳のサポート

  ※ 詳しくはのページをご覧ください。


メディア
コーポレートサイト

オウンドメディア

#LI-DNI

Top Skills

Go
The Company
Palo Alto, California
1,593 Employees
On-site Workplace
Year Founded: 2013

What We Do

Mercari is a C2C marketplace app allowing anyone with a smartphone to easily sell items they no longer need, providing a new and unique user experience.

In the past, buying and selling secondhand items has commonly been done at physical shops. However, this came with issues: the travel time required to go to these shops, the limited selection of items these shops carry, the unclear prices for both the buyer and seller alike due to the involvement of dealers, and more.

Online auction websites for buying and selling secondhand items came with their own problems, including difficult listing procedures and long bidding times. On Mercari, anyone can use their smartphone to easily buy and sell items. We also provide easy and inexpensive shipping options thanks to our partnerships with delivery companies and convenience stores. As our service is catered to individuals on both the buying and selling sides, anyone can experience the fun of easily selling unneeded items for money and the excitement of finding unique secondhand items to buy.

With the technological capabilities and extensive user and information bases built through Mercari, we launched the Merpay mobile payment service in 2019, the B2C marketplace Mercari Shops in October 2021, and the cryptoasset exchange service Mercoin in March 2023. We strive to continuously enhance the user experience and expand our businesses

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