Senior IT-Security Engineer – Zero Trust & Zscaler

About the role

Rheintec is looking for an experienced IT-Security Engineer with a strong background in network security, Zero Trust architectures and Zscaler solutions. The role involves designing, implementing and optimizing modern security infrastructures for customers, with a focus on Zero Trust Network Access (ZTNA) and Zscaler. The position is based in Basel, Switzerland.

Key responsibilities

• Perform service activities for customers' security systems, remotely and on-site
• Design, implement, operate and optimize Zero Trust architectures, especially ZTNA
• Work extensively with Zscaler, particularly Zscaler Private Access (ZPA) and Zscaler Internet Access (ZIA)
• Plan and implement system installations, changes and security patches independently
• Analyze, troubleshoot and resolve security incidents with the internal team
• Advise and support customers in improving their security infrastructure
• Act as a technical contact for customers and their internal departments
• Work with mail security, cloud proxy, WAF, NGFW, Linux, network segmentation, VPNs and monitoring
• Take part in an on-call rotation, including evenings, weekends and holidays, with additional compensation

Required profile

• Several years of professional experience in IT security and network operations
• Extensive hands-on experience with Zscaler and ZTNA, including implementation, configuration, operation and troubleshooting
• Strong understanding of Zero Trust principles, secure access architectures and modern network security
• Solid knowledge of network infrastructure, firewall technologies and security operations
• Independent, structured working style and ability to manage technical tasks and projects autonomously
• Ability to write comprehensive technical documentation and communicate well with customers and colleagues
• Very good written and spoken German and English
• Certifications such as Zscaler, CISSP, CCSP or Microsoft Azure are an advantage

What we offer

• Hybrid work: two days at home and three days in the office in Basel
• Flat hierarchy, professional training and support for certifications
• Team events decided by the team
• Profit sharing: 50% of total profit distributed among employees