English summary for screening — check the original posting before applying.
Develop and design Japan's leading MDM product, OPTiM Biz, used by over 180,000 companies. This role involves everything from requirements definition and specification to implementation and negotiation, while balancing stability with AI transformation enhancements.
Must-haves
- Experience in backend development for large-scale systems.
- Ability to read and refactor legacy code.
- Experience in requirements definition, specification, and design.
- Willingness to handle tasks from requirements definition to implementation and negotiation.
Nice-to-haves
- Experience with AI/LLM tools like ClaudeCode or Codex.
- Experience in cross-departmental collaboration and negotiation.
- Interest in AI transformation and process improvement.
Tech stack
Ruby on RailsSwiftKotlinObjective-CJava