【外資系デジタルマーケティング企業】シニアインフラエンジニア（L3サポート）

A global digital marketing solutions company is seeking a Senior Infrastructure Engineer (L3 Support).
As an L3 Support Engineer, you will lead advanced server and network troubleshooting and support stable and efficient IT operations.

Responsibilities:
- Design, build, operate, and maintain server infrastructure in both on-premises and cloud environments
- Diagnose and troubleshoot complex server issues (performance degradation, hardware failures, software conflicts, security vulnerabilities, etc.)
- Build and operate server environments including OS (Windows, Linux) and virtualization platforms (VMware, Azure VDI)
- Implement and maintain security measures such as access control, firewalls, and IDS
- Automate server-related tasks to improve efficiency and reliability
- Perform regular backups and ensure disaster recovery (DR) readiness
- Monitor server performance and detect early signs of issues
- Stay up to date with server technologies and trends
- Collaborate with internal teams and stakeholders
- Diagnose and troubleshoot escalated network issues (connectivity problems, routing errors, security incidents, performance issues, etc.)
- Design and operate network configurations including routers, switches, firewalls, TCP/IP protocols, and security mechanisms
- Monitor network performance and identify potential issues
- Design and implement network upgrades and expansions
- Stay up to date with network technologies and trends
- Collaborate with internal teams and stakeholders

Required Skills:
- 5+ years of experience as an IT Infrastructure Engineer
- Experience building Windows Server environments
- Experience with virtualization platforms (VMware / Hyper-V)
- Experience with network equipment (Cisco, Palo Alto firewalls, etc.)
- Knowledge of Active Directory
- Basic operational experience with SQL Server

Why should you apply:
- Opportunity to work for an exciting, international company
- A role where you can fully leverage your infrastructure expertise as a senior L3 support engineer
- Great base salary + bonus, travel expenses, various insurances, hybrid work style


Company Details:
A marketing solutions company that “transforms data into customer value and adds value to clients. The company helps retailers attract and retain more consumers and helps brands adapt their strategies and developments. The company is listed on the New York Stock Exchange and has been operating in the European, American, and Japanese markets since 1983.

Working hours: 9:00-17:30, Monday-Friday
Work Style: Hybrid (4 days WFH)
Holidays: Saturday, Sunday, and National Holidays, Year-end and New Year Holidays, Paid Holidays, Other Special Holidays etc
Services/Benefits: Pension, insurance, health, travel, additional bonus (depending on company performance).
Number of Interviews: 3