2 days ago
Stockholm, SwedenSenior
Responsibilities
- Design, implement, and optimize VoIP audio algorithms including adaptive jitter buffers, packet loss concealment, and codec pipelines.
- Perform peer code reviews and automate development workflows and quality gates.
- Participate in daily stand-ups, planning, releases, and retrospectives.
- Collaborate across teams through training, mentoring, and knowledge sharing.
- Evaluate and tune audio algorithms using objective metrics and subjective listening tests.
- Develop and test performance-sensitive, close-to-real-time code and support production A/B testing.
Requirements
- MSc or equivalent in Software Engineering or a related field.
- Hands-on production experience developing VoIP or real-time audio algorithms, including adaptive jitter buffers, packet loss concealment, or codec integration.
- Proficiency in C/C++ and strong knowledge of data structures, algorithms, and design patterns.
- Experience with media streaming and relevant real-time application protocols.
- Professional verbal and written English communication skills.
- Preferred: experience applying AI/ML to audio algorithm development or optimization in production voice systems.
- Preferred: experience with POLQA, PESQ, subjective listening tests, close-to-real-time systems, performance-sensitive code, incremental development, testing, and production A/B testing.
- Ability to critically review AI-generated code and steer AI through context and prompt design.
About Cisco
Cisco designs and sells networking, security, and collaboration platforms for enterprises, service providers, and governments, spanning routers and switches, Wi‑Fi, firewalls, zero‑trust, observability, and cloud-managed IT (Meraki) plus Webex. Its business model mixes hardware, software subscriptions, and support/consulting services. Founded in 1984 and headquartered in San Jose, California, Cisco is a public company traded on Nasdaq and serves customers across data centers, campuses, and service provider networks.