Software Engineer Internship at mercari

Language

Setup: Remote
Location: Tokyo
Type: Internship
Level: Entry-level
Posted: Feb 20, 2026

Description

Mercari Group is seeking new graduates for a Software Engineer Internship starting in October 2027 or April 2028. This internship focuses on experience design from a management perspective, aiming to cultivate future leaders within the company. Interns will work on developing features for Mercari's flea market app, Merpay's smartphone payment service, and Mercoin's cryptocurrency/blockchain service. They will collaborate with a diverse team of software engineers, contributing to UX improvements and engaging directly with technology and data.

Required Skills

API development
JavaScript
React
Swift
Kotlin
ML modeling
Go
Kubernetes
Terraform
Python
SQL
RDBMS
PHP
Java
Object-oriented software development
Networking
Memory management
Unit testing
Functional testing
End-to-end testing
Microservices architecture
Cloud development
Git

Additional Information

Preferred Qualifications: Interest in leading businesses and organizations, with a desire for a future management career.
Experience producing tangible results in a business setting, such as through internships or entrepreneurship.
Experience with project management and/or team leadership
Ability to design and develop with performance and scalability in mind
Knowledge of object-oriented software development, networking, and memory management.
Knowledge in software test including unit testing, functional testing, and e2e testing
Knowledge of and experience with networks, Linux servers, surveillance systems, logging, and system operation
Experience with development and operation in a microservices architecture
Cloud development experience (preferably Google Cloud or AWS)
Understanding of UI development
OSS contribution experience / familiarity with OSS community
Experience with team development using Git or similar management systems