Software Engineer

Cisco Systems, Inc.; Stockholms kommun; On-site; SEK 1,100,000 - 1,400,000; Full time

Job summary

Cisco Systems, Inc. in Stockholm invites a seasoned software engineer to advance real-time VoIP audio algorithms. You’ll design, implement, and optimize adaptive jitter buffers, packet loss concealment, and codec pipelines to power world-class meeting experiences.

You will collaborate across teams, perform peer reviews, and participate in agile ceremonies while leveraging AI responsibly to accelerate development. English communication is essential in our global environment.

Qualifications

• 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.
• Proficiency in C/C++ with strong knowledge of data structures, algorithms, and design patterns.
• Experience with media streaming and relevant protocols for real-time applications.
• Professional verbal and written communication skills in English.
• Uses AI responsibly to accelerate development and critically reviews AI-generated code before using it.

Responsibilities

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

Skills

C/C++ programming

VoIP/real-time audio

Data structures & algorithms

English communication

AI awareness

Education

MSc in Software Engineering

Job description

Meet the Team

Join Cisco's Webex Media engineering site in Stockholm, where we craft the meeting experience that connects people and businesses around the world. We are a highly motivated, startup‑like team within a global organization, combining the impact and resources of Cisco with the agility and camaraderie of a smaller group. Our work powers the shift to a hybrid workforce and aims to make people feel truly connected. You’ll find a friendly, supportive environment that celebrates creativity, growth, and a shared passion for building world‑class real‑time audio algorithm experiences.

Your Impact

• Design, implement, and optimize VoIP audio algorithms—including adaptive jitter buffers, packet loss concealment, and codec pipelines—based on product requirements.
• Perform peer code reviews and automate development workflows and quality gates.
• Participate in agile ceremonies including daily stand‑ups, planning, releases, and retrospectives.
• Collaborate across teams to broaden technical and soft skills through training and mentoring.

Minimum Qualifications:

• 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 (e.g., adaptive jitter buffer, packet loss concealment, codec integration) in production systems.
• Proficiency in C/C++ with strong knowledge of data structures, algorithms, and design patterns.
• Experience with media streaming and relevant protocols for real‑time applications.
• Professional verbal and written communication skills in English.
• Uses AIresponsiblyto accelerate development.
• Critically reviews AI-generated code before using it.

Preferred Qualifications:

• Experience applying AI/ML to audio algorithm development or optimization in production voice systems.
• Experience evaluating and tuning audio algorithms using objective metrics (e.g., POLQA, PESQ) and subjective listening tests.
• Experience with close‑to‑real‑time systems and performance‑sensitive code paths.
• Comfort with incremental development, testing, and A/B testing in production.
• Collaborative, friendly, and self‑directed; eager to learn and share knowledge.
• Steers AIeffectively viacontext and promptdesign.

Collab Hiring

Why Cisco?

At Cisco, we’re revolutionizing how data and infrastructure connect and protect organizations in the AI era – and beyond. We’ve been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint.

Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you’ll see that the opportunities to grow and build are limitless. We work as a team, collaborating with empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere.

We are Cisco, and our power starts with you.