Software engineer, frontend

Ljubljana, Slovenia

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About the role

Soniox is building the future of real-time voice AI — and we're looking for a Frontend engineer who can turn powerful technology into intuitive, high-performance products.

As a Frontend engineer at Soniox, you’ll help design and build the user-facing surfaces of our speech and translation AI products. You’ll work closely with research, design, and backend teams to bring advanced capabilities — like live transcription, multilingual translation, and real-time voice reasoning — to users across web and mobile platforms.

You’ll be working in a fast-moving, highly collaborative environment where we value simplicity, clarity, and real-world impact. This role is ideal for engineers who care deeply about user experience and are excited to build products from scratch.

In this role, you will:

  • Build and maintain frontend applications using React, TypeScript, and latest web technologies.
  • Develop robust, scalable frontend infrastructure to support live audio, real-time streaming, and interactive AI interfaces.
  • Collaborate with product, research, and design to prototype, implement, and iterate on new user experiences.
  • Contribute to the full product lifecycle — from architecture and design to implementation and production deployment.

You might thrive in this role if you:

  • Have 4+ years of experience building and shipping production-grade web apps.
  • Are confident building complex systems end-to-end, even in the absence of mature infrastructure.
  • Have deep experience with TypeScript, React, and the modern frontend stack.
  • Care about design, performance, and building maintainable systems.
  • Love fast data-driven iteration and adapt well to change and ambiguity.
  • Enjoy learning new things — and teaching others what you learn.

Why Soniox

You’ll help build one of the most technically advanced AI platforms in the world — and shape how it reaches and supports users globally.

You’ll work directly with a world-class team of engineers and researchers solving frontier problems in speech and language AI.

You'll have a voice in how our company grows, how our customers succeed, and how AI transforms human communication.

Ready to join Soniox? Apply now