Senior Node.js Backend Engineer – VoIP Platform (Stockholm)

Ubiquiti Inc; Stockholms kommun; Híbrido; SEK 900.000 - 1.100.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Hybrid work model

Wellness allowance (5000 SEK)

Private health insurance

Life insurance

Occupational pension

Access to latest Ubiquiti products

Descripción de la vacante

Ubiquiti Inc. in Stockholm, Sweden, seeks a Backend Software Engineer (Node.js) to design, build, and maintain scalable backend services. You will work across backend, embedded, cloud, and application boundaries to deliver platform capabilities for the UniFi Talk ecosystem.

The role emphasizes secure API design, observability, and collaboration with cross-functional teams. Hybrid work model, strong English skills, and ownership mindset are essential.

Formación

• 5+ years of professional experience with Node.js and TypeScript.
• 3+ years of experience with PostgreSQL.
• Knowledge of VoIP protocols: SIP, RTP, WebRTC, SDP, RTCP, TCP, UDP.
• Experience with configuring PBXs.
• Experience building software for connected devices, infrastructure products, or networking systems.
• Good understanding of web security, including OWASP, browser security fundamentals, and OAuth.
• Strong debugging skills and defensive programming.
• Professional experience with Git, Unix/Linux, and Docker-based environments.
• Ability to work independently and take ownership of technical work.
• Strong written and verbal communication skills.
• High proficiency in English, both written and spoken.

Responsabilidades

• Design, build, and maintain backend services in Node.js and TypeScript.
• Develop secure, scalable, and maintainable APIs and service workflows.
• Contribute to architecture and code design decisions across the team.
• Review code and help maintain strong engineering standards, release quality, and development workflows.
• Investigate production issues, debug complex failures, and ship robust fixes.
• Work closely with embedded, web, mobile, product, and design teams to deliver platform capabilities used across the UniFi ecosystem.
• Improve the reliability, observability, and developer experience of the services you work on.

Conocimientos

Node.js

TypeScript

PostgreSQL

SIP

WebRTC

TCP/UDP

Git

Unix/Linux

OWASP

Herramientas

Docker

Descripción del empleo

Ubiquiti Inc. in Stockholm, Sweden, seeks a Backend Software Engineer (Node.js) to design, build, and maintain scalable backend services. You will work across backend, embedded, cloud, and application boundaries to deliver platform capabilities for the UniFi Talk ecosystem.

The role emphasizes secure API design, observability, and collaboration with cross-functional teams. Hybrid work model, strong English skills, and ownership mindset are essential.