VoIP System Administrator (f/m/d)

eGroup is a pioneering provider and market leader of secretary services for small and mid‑sized businesses across Europe, with over 20 years of experience. Rooted in a culture of flat hierarchies and a let’s‑do‑it mentality, we foster an environment where innovation thrives.

Join our dynamic, multinational Product & Software Development Team where passion for crafting software meets the challenge of complex business needs. Our diverse environment thrives on collaborative thinking and welcomes varied thoughts and ideas from all team members. At eGroup, we prioritize the delivery of timely and impactful software solutions, always staying agile to embrace changes and challenges.

What you’ll be doing

• Operate the 24/7 high‑available VoIP infrastructure.
• Have an overview over the whole architecture and optimize it further.
• Plan and install new VoIP services or keep them up to date.
• Ensure impeccable call quality and performance with state‑of‑the‑art monitoring software.
• Monitor and coordinate with our upstream carriers.
• Support our software developers and AI‑Teams with VoIP know‑how in the further development of our software.

Upcoming projects / challenges

• Migration of VoIP Layer 3rdparty call control to distributed WebRTC‑Softphones.
• Building a highly available and scalable WebRTC Softphone Registrar.
• Transition of a SIP Servlet based contact center application to a modern HTML5 application.
• Modernization and refactoring of the existing environment.
• Create an interconnect between our contact center application and Microsoft Teams.

Job requirements

What you bring to the table

• Support our good team spirit by bringing your best self to work.
• Have good experience in the VoIP field, especially with FreeSWITCH or Kamailio; experience with Asterisk is a plus.
• Have a good understanding of VoIP protocols and architectures, and can read SIP traces (SIP, RTP, WebRTC, RTCP…).
• Be comfortable with Linux and database queries.
• Can work independently and effectively, coordinating tasks and responsibilities.
• Recognize opportunities for seamless improvements, and be driven to implement them into a modern infrastructure.
• Over 5 years of demonstrated experience in the field of Information Technology.

Why us?

• Join a highly rated international team that values collaboration and team‑building activities.
• Engage with the entire company at our Summer and Christmas parties.
• Enjoy flat hierarchies, direct access to C‑Level executives, and opportunities to contribute ideas and approaches.
• Benefit from a bike (Swapfiets) or support for your public transport ticket (BVG).
• Relish in our top‑notch coffee machine, on‑tap beer, and other refreshments and snacks.
• Expand your knowledge with edX, Pluralsight, Udemy courses, and offsite trainings.
• If you live in Berlin: Experience the best of both worlds with our 50% hybrid work model, providing the flexibility to work from the comfort of your home or enjoy our fantastic office space conveniently located at U Kleistpark or S Julius‑Leber‑Brücke.
• If you live elsewhere, we’re open to a 100% remote employment.

Sounds terrific? Great! Let’s get in touch.

We at eGroup foster diversity and are committed to create teams with a broad variety of backgrounds, experiences, perspectives and skills. All decisions about interviews, offers and employment are based on expertise, merit and business need.