Senior Web Application Engineer

ASKUL

Kotlin

Postgres

Full-stack

Spring

About this role

A web application engineering role on ASKUL's procurement-integration system, which connects customers' purchasing systems (including punch-out) to one of Japan's largest B2B e-commerce businesses. The team is fully rebuilding the system and will continue developing it after the rebuild.

The engineer designs and implements the new system across frontend, backend and database; improves user experience and performance; designs CI/CD pipelines; and builds web applications with Kotlin, TypeScript, Spring Boot and PostgreSQL on AWS (ECS, S3). AI agents such as GitHub Copilot are used heavily in daily development. The role also covers requests from other departments, production incident investigation, scheduling and technical leadership within the team.

To be considered, applicants need 5+ years of web application development, 3+ years developing with Kotlin or Java, 5+ years of design and development on an RDBMS such as Oracle or PostgreSQL, and 5+ years of requirements definition and design.

This is an AI-generated summary of the employer's original posting — details can be incomplete, out of date or simply wrong. Always confirm everything on the official posting before applying.