データエンジニア（シニアスペシャリスト）

HWJ Summary

Senior data engineer at youthful days, registered in Yamanouchi, Nagano, placed into client engagements rather than in-house work. The stated scope is data-platform design, build and operation across DWH and data lakes, ETL/ELT design and implementation, data processing and pipeline development in SQL and Python, cloud platforms including AWS, GCP, Azure and Snowflake, plus data-quality management, performance tuning, incident response, and technical mentoring of junior members. It is framed as a leadership position within the engagement, with a path into upstream work depending on experience. Requirement is hands-on data-engineering experience with data platforms or pipelines, and the ability to work independently at a client site — worth reading closely, because client-site placement is the actual working arrangement here, not the Nagano address. Pay is stated monthly at ¥405,000–469,120. A HelloWork 紹介状 is required unless you apply online. In Japanese; no Japanese level and no visa sponsorship stated. This posting expires earlier than the others in the batch, on 2026-09-30.