Software Engineer Backend (Growth Platform) - Merpay

Salary not provided

GCPGoKubernetes

Minimum year of experience: 2

Job Description

Introduction

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

Mercari is a marketplace app that was founded in 2013 by Shintaro Yamada, with the belief that we can create a more prosperous society by finding ways to utilize the limited resources of our planet. Our mission is to circulate all forms of value, not just physical items and money, in order to provide more choices for people to achieve what they want and contribute to society.

At Mercari, we use the power of technology to connect people around the world and create a world where everyone's potential can be realized. To learn more about our vision, please refer to Mercari Culture Doc.

Equal Opportunity Hiring

At Mercari, we strive to create a society where individuals have the opportunity to create value without being limited by their background. We believe that the concept of "Inclusion & Diversity" is essential for us to achieve our mission.

In our hiring process, we promise to eliminate all forms of discrimination based on age, gender, sexual orientation, race, religion, physical ability, or any other factor, in order to attract candidates from diverse backgrounds who share our mission and values.

For more information, please refer to our I&D Statement.

Job Scope

Team mission:

The team is responsible for developing and operating marketing tools, coupons, and point reward systems that contribute to the growth of the entire Mercari Group in Japan, including Mercari, Mercoin, Mercari Shops, and Mercari Hallo. Our goal is to seamlessly integrate these businesses and provide a platform that enables quick and flexible launching of various campaigns and initiatives by different teams within the company, in line with Mercari Group's mission to "Circulate all forms of value to unleash the potential in all people." We collaborate with other engineering teams, data analysts, and machine learning experts to solve complex problems and achieve smart solutions.

For more details about Mercari's mission and values, please visit our Mission & Values page.

Responsibilities:

Working with a highly specialized team within the Mercari Group, each member excels in their respective domains. We communicate openly through channels like Slack, where we discuss architectural design, send each other pull requests on GitHub, and share knowledge on our internal wiki. We also hold weekly study sessions called "Go Friday," open to all members, where engineers can improve their technical skills together. Some members may not have prior experience developing web applications with Go, but they quickly become adept through internal communities and short-term intensive training courses like "Gopher Dojo". By leveraging their expertise, team members not only contribute to Mercari but also establish a presence within the engineering community.
Specific job responsibilities include:
- Development of microservices using Go
- Designing interfaces between microservices using Protocol Buffers + gRPC
- Effectiveness measurement and service improvement through quantitative and qualitative analysis of user behavior logs
- Designing architecture and selecting middleware based on application requirements
- Performance tuning, monitoring, and alert handling for microservices

Development Environment

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

Unique Challenges

Supporting campaigns that deliver millions of notifications, coupons, and points daily, processing billions of data points from various services (both internal and external)
Implementing products that enhance customer engagement and contribute to company GMV
Collaborating with product managers, ML engineers, SREs, and data platform specialists to build scalable solutions that are robust, fast, cost-effective, and secure

Required Qualifications

Shared belief in the mission and values of Mercari Group and each company within the group
Shared belief in the mission and values of Merpay
Knowledge and experience in web application development
Designing schemas and creating efficient queries for databases (RDB, NoSQL, etc.)
Experience with web application operation/tuning and knowledge of security
Experience in software architecture design and middleware selection
Ability to take ownership and drive software development

Preferred Qualifications

Experience with development and operation using Go and GCP
Experience with developing and operating large-scale traffic systems
Experience in launching new services and dealing with challenges during the growth phase
Experience in leading development teams, management, and process improvement
Experience in data analysis with a background in statistical methods

Selection Criteria

Relevance of your work experience and qualifications to the required and preferred qualifications

Please refer to our Hiring page for more details.

Language Skills

Possess one of the following language skills:

a. English: Proficient (CEFR - C1) / Japanese: Basic (CEFR - A2)

b. English: Basic (CEFR - A2) / Japanese: Proficient (CEFR - C1)

* For details about CEFR, see here

Employment Conditions

Employment Type

Full-time employee

Probationary period: 3 months (same conditions as regular employees)

Office Location

Roppongi

Smoking is prohibited indoors
Mercari offers a work style option called "Your Choice" that allows employees to choose between working in the office or working remotely. Please note that certain roles may be exempt from this option.

Working Hours

Flextime (no core time or flexible time)

* Some positions may have different working hours. Please inquire when applying.

Holidays & Time Off

Sundays and public holidays
Annual paid leave, bereavement leave, relaxation leave, sick leave

Salary

Monthly salary (includes fixed overtime allowance)
Determined based on skills, experience, and abilities
Salary review twice a year

Benefits

Comprehensive social insurance benefits
Incentive program
Support system for employees and their families

* See the Benefits page for more details.

Support

Relocation support
Language learning support
Translation and interpretation support

* See the Support page for more details.

Media & Resources

Corporate Websites

Owned Media

reco経由で応募する