Software Engineer - VoIP Audio Algorithms

About the role

Cisco's Webex Media engineering team in Stockholm builds the real-time audio experience behind its meeting platform, supporting a hybrid workforce. It is described as a highly motivated, startup-like team within a global organization, working on world-class real-time audio algorithm products.

Key responsibilities

• Design, implement and optimize VoIP audio algorithms such as adaptive jitter buffers, packet loss concealment and codec pipelines according to product requirements.
• Perform peer code reviews and automate development workflows and quality gates.
• Take part in agile ceremonies including daily stand-ups, planning, releases and retrospectives.
• Collaborate across teams and take part in training and mentoring to broaden technical and soft skills.

Required profile

• 7+ years of professional software development experience and a MSc (or equivalent) in Software Engineering or a related field.
• Hands-on experience developing VoIP or real-time audio algorithms in production systems.
• Professional verbal and written communication skills in English.
• Uses AI responsibly to speed up development and critically reviews AI-generated code before using it.

Required skills

• Proficiency in C/C++ with strong knowledge of data structures, algorithms and design patterns.
• Experience with media streaming and protocols for real-time applications.
• Preferred: applying AI/ML to audio algorithms, tuning them with objective metrics (POLQA, PESQ) and subjective listening tests, and working on close-to-real-time, performance-sensitive code.