Senior Professional Services Engineer (m/f/d)
open-xchange-gmbh · DE
Posted Sep 21, 2026
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About the job
Our mission: Discover what OX offers you: Your team: Your new job: This is the tech stack you'll be working with: Your background: This is what you get at OX: Join the team: Your contact person:
Are you an engineer with real technical depth AND do you want to own the relationship with one of our major hosting customer? Working through real production problems, translating operational needs into product improvements, and filling a role that matters to both sides? This combination is rare.
At Open-Xchange (OX), we develop open-source communication and collaboration software used by public sector organizations, telcos, and hosting providers to keep data secure and under their control. Our products cover email, collaboration, DNS security, and related services, and are used by millions of people worldwide.