【Infrastructure Engineer Recruitment】 Numerous Network Projects (Major Network Upgrades, Carrier Construction, etc.) ★Previous Salary Guaranteed × Project Selection System to Achieve Your 'Desires'! Overwhelmingly Easy to Work With: Annual Holidays 130 Days / Overtime Less Than 10.5h/month ◎English summary from Japanese

株式会社マッシュアップブレイン

✓ Detailed

Salary

420-606万円

Location

＜本社＞東京都中央区築地１－９－５一九堂ビル4F ※転居を伴う転勤はありません ※できるだけ自宅近くの案件を紹介可能（徒歩通勤の社員在籍中） ※テレワーク・在宅：有

Job Type

Full-time

Work Style

・休憩時間：01:00 ・平均残業時間：10.5時間（2026年3月時点） ※基本的には上記の勤務時間・残業時間ですが、就業されるプロジェクトにより勤務時間は異なります ※年々残業時間が減少しており、就業時間内に効率よく業務を進める文化が根づいています。

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Role summaryEnglish summary from Japanese

English summary for screening — check the original posting before applying.

Mashup Brain is seeking experienced Network Engineers to join their team. You will have the opportunity to step up into higher-level design and architecture roles on projects for major corporations and telecommunications carriers. The company emphasizes engineer satisfaction through a project selection system and strong support.

Must-haves

3+ years of network engineering experience
Experience designing or building Cisco products
Knowledge of L2/L3 switches and routers
Experience designing or building Cisco products (for Project 1)
Knowledge of L2/L3 networks (for Project 2)
3+ years of network construction practical experience (for Project 2)

Nice-to-haves

Experience building Firewalls (FortiGate/Palo Alto)
Possession of certifications like CCNA, CCNP
Experience building Load Balancers (F5/BIG-IP)

Tech stack

CiscoFortiGatePalo AltoF5BIG-IP

Work style

Onsite, with projects limited to within 1 hour commute. Company offers 3-20 project proposals per engineer.

Other notes

Annual holidays: 130+ days. Average monthly overtime: less than 10.5 hours. Lunch subsidy provided.

About the Company