Senior Backend Engineer, Real-Time Audio & SIP Infrastructure

Corti ApS; København; Hybrid; DKK 700,000 - 1,100,000; Full time

Benefits offered by this job

Hybrid working in Copenhagen

Equipment provided by Corti

Job summary

Corti is hiring an engineer passionate about building the next generation of high-scale audio processing infrastructure for critical healthcare communications. You will integrate AI capabilities with SIP/SIPREC-based systems and help maintain reliability in life-critical environments.

Join a hybrid team in Copenhagen, reporting to the Director of Platform Engineering. The role emphasizes hands-on development, code reviews, and mentorship in a fast-growing AI healthcare company.

Qualifications

• Mastery of Golang with strong knowledge of SIP/SIPREC protocols.
• Experience building scalable, high-throughput infrastructure.
• Hands-on cloud architecture and development experience.
• Familiarity with real-time audio processing and WebRTC is a plus.

Responsibilities

• Architect and maintain systems processing over 100,000 calls per day.
• Develop foundational infrastructure using SIP and SIPREC.
• Integrate AI capabilities into low-latency audio pipelines.
• Collaborate with Platform Engineering to ensure reliability and scalability.
• Hands‑on development of innovative solutions where design choices matter.
• Participate in design reviews and contribute to Corti's engineering culture.
• Mentor developers across levels to strengthen the team.

Skills

Go (Golang)

SIP & SIPREC

Distributed infrastructure

REST

WebSockets

Kafka

Event-driven architecture

Containers & orchestration

WebRTC & real-time audio

English communication

Code reviews

Tools

CockroachDB

gRPC

Docker

Kubernetes

Job description

Corti is hiring an engineer passionate about building the next generation of high-scale audio processing infrastructure for critical healthcare communications. You will integrate AI capabilities with SIP/SIPREC-based systems and help maintain reliability in life-critical environments.

Join a hybrid team in Copenhagen, reporting to the Director of Platform Engineering. The role emphasizes hands-on development, code reviews, and mentorship in a fast-growing AI healthcare company.