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Sumitomo Metal Mining

# 社内SE（インフラ）シニアスタッフ(主任クラス)

Listed on Sumitomo Metal Mining’s official careers site. Listed as of October 20, 2026. Check that it is still open and apply there.
[Apply on Sumitomo Metal Mining’s careers site →](https://hrmos.co/pages/smm-mid-career/jobs/0000141)

[OpenNash Jobs](https://jobs.opennash.com/) / [Sumitomo Metal Mining](https://jobs.opennash.com/companies/sumitomo-metal-mining/) / 社内SE（インフラ）シニアスタッフ(主任クラス)

The employer’s listing has no description we could read. See it on their site.

## At a glance
- Posted by the employer: Not stated
- First seen by OpenNash: Oct 13, 2026
- Last checked: Oct 20, 2026
- Listed for: 7 days[Apply on Sumitomo Metal Mining’s careers site →](https://hrmos.co/pages/smm-mid-career/jobs/0000141)

## More jobs at Sumitomo Metal Mining

### [DX推進支援担当マネージャー](https://jobs.opennash.com/companies/sumitomo-metal-mining/jobs/6e01cc99dbf87004d3e3/)

### [【ポジティブアクション・女性限定】人事労政マネージャー](https://jobs.opennash.com/companies/sumitomo-metal-mining/jobs/7a8a794778f8f5972ede/)

### [【ポジティブアクション・女性限定】経理マネージャー](https://jobs.opennash.com/companies/sumitomo-metal-mining/jobs/4696005d95738263e74b/)

### [データ･AI活用PJ担当マネージャー](https://jobs.opennash.com/companies/sumitomo-metal-mining/jobs/f428c6ae06317ffc6788/)

### [プラントエンジニア（土木建築）シニアスタッフ(主任クラス)～担当マネージャー](https://jobs.opennash.com/companies/sumitomo-metal-mining/jobs/ae45929a8458b96fe875/)

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OpenNash lists jobs from employers’ own careers sites and does not handle applications.
Dates come from the employer where stated; “first seen” and “last checked” are our own observations.

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