Join us we're hiring!

As a Telecom SIP Engineer at Sipwise, your mission is to help creating next-level solutions that improve the way our business is run. Your hands-on knowledge in system design, application development, testing and operational stability will help your team deliver high quality products. You will be instrumental in solving technical issues and developing integration elements. You will see your ideas come to life as part of a small, success-driven team.

You will be part of a team of highly skilled developers and engineers building, deploying and operating advanced technology solutions on a global level. You will be working with unified communications and routing platforms, advanced SIP and session management infrastructure, open source and cloud based collaboration systems, and other next generation voice services. In addition, you will participate in architecture and design meetings and consult with our business clients to translate business needs into excellent technology solutions.

This role requires a wide variety of strengths and capabilities, including:


    • Definition and management of the network and telephony components of the Solutions within the Unified Communications field. This includes discovery, design and development of telecommunications systems, network, and applications and performance of complex tasks related to systems and network operations.
    • Design the telecommunications and networking required to integrate client’s engineered solutions into customer’s environments.
    • Plan network installations by preparing accurate technical specifications and installation schematics
    • Provide documented test cases to validate high quality WebRTC solution including RTP, SIP protocols and various open-source components like Kamailio, MariaDB, etc.

    • 3+ yrs experience in SIP and signaling protocols, configuration SIP gateways, debugging call flows and routing configurations
    • Knowledge of routing protocols, switching, TCP/IP
    • Considerable working knowledge of implementing and maintaining IP Phones and SIP gateways
    • Experience with multi-site IP PBX Infrastructures
    • Telecommunications knowledge and technologies, technical understanding
    • Personal organisation to ensure timely updates of project tickets, tasks, etc
    • English, spoken and written

    • Interesting, demanding, challenging tasks
    • Flexible working hours
    • (Net)work with international experts and professionals within the community
    • State of the art technical equipment
    • Open-Door policy, learning from each other, facing challenges together as a team
    • Due to legal reasons we are obliged to disclose the minimum salary according to the collective agreement for this position, which is EUR 50,000 gross per year (based on full-time). We offer a higher salary in line with qualifications and experience.
    • Cold & hot drinks, fruits, Social events, Laptop, Mobile phone.
    • Our employees can choose between a garage parking space or the “Wiener Linien” annual ticket.
    • We support and promote professional training.
    • Relocation assistance to the best city in the world – Vienna!

You can expect the spirit of an expanding and growing company within a dynamic market environment. We offer opportunities to develop your skills and capabilities within a work environment of international experts!

  • If you are looking for a demanding technical challenge with many possibilities for further development, please send your application to: