ALTENWHO WE ARE?
ALTEN – A Global Leader in Engineering and IT Services
Founded in France in 1988, the ALTEN Group is a leading technological partner serving the world's largest clients. In 2024, it achieved revenues exceeding 4.14 billion euros and employs over 57,700 people, 88% of whom are engineers and IT experts.
ALTEN Polska has been operating for 13 years, supporting its clients' innovation, research and development, and IT systems. It has offices in Kraków, Warsaw, Wrocław, Gdańsk, and Poznań.
It serves key industries such as aerospace, space, industrial solutions, automotive, railway, energy, finance, telecommunications, and retail.
Areas of expertise:business analysis, cybersecurity, artificial intelligence, data analysis and cloud solutions, application development, software testing, project management, embedded software, quality management, industrialization, digital transformation, and industrial engineering.
For more information, visit:
Implement MIKEY-SAKKE encryption to ensure secure and resilient media transport.
Develop C# components for high‑concurrency SIP signaling and session management
Build and maintain the real‑time media plane
Ensure seamless floor control management for half‑duplex communication environments
Implement and maintain handlers for MCData services The ideal candidate for this position will have:
3+ years of professional experience with C# / .NET Framework / .NET Core
Experience with ASP.NET or WebAPI
Solid understanding of the SIP protocol stack (e.g., INVITE, PUBLISH, SUBSCRIBE)
Experience working with RTP/RTCP protocol stacks
Proficiency in parsing complex XML schemas (XSD)
Strong understanding of OOP, SOLID principles, and modern CI/CD workflows (Git, Pull Requests, Agile)
A full-time contract with possibility to choose the form of employment (UoP/B2B)
Stable and long-term cooperation
Participation in company conferences, trainings, workshops, integration meetings, etc.
Opportunity to relocate and work in different ALTEN Polska branches
Medicover Benefits platform / Medicover Sport card
Layette for a newborn employee's child
Join our team and let's build tomorrow's world today
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z o.o., based in Warsaw, for the purpose of conducting the recruitment process for the position specified in the job advertisement.
You can withdraw your consent at any time by contacting us at , which will result in the termination of the recruitment process and your application not being considered in future recruitments.
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