Voice-AI Platform Engineer

Taleolithic is a boutique recruitment agency helping tech startups in Europe and the U.S hire top talent.

We are partnering with a fast-growing voice-AI company that is pushing the boundaries of speech recognition, multilingual understanding, and real-time language processing. The team has built a new generation of speech-to-text and voice models from the ground up – foundation-scale architectures capable of extremely low latency, high accuracy across accents and noisy environments, and seamless support for dozens of languages in a single unified system.

This is not "apply an API and wrap it in a product." It's deep engineering: large-scale training pipelines, high-performance inference, model architecture innovation, distributed systems, and the kind of optimization work only a handful of teams in the world are doing well. The company has already achieved breakthroughs that outperform major incumbents in real-world speech scenarios, unlocking use cases that historically weren't reliable enough to ship.

With a small, elite engineering team, every hire directly shapes the system's capabilities and the future of voice interfaces globally. This is an opportunity to work on technically hard problems such as end-to-end model development, GPU-dense infrastructure, real-time streaming, language modeling, and ultra-efficient deployment at scale.

Our partner offers a combination of highly competitive pay and meaningful early-stage equity, creating significant upside in the event of a future exit. For engineers who want to work on frontier deep-tech challenges with massive real-world impact, this is a rare chance to join at exactly the right moment.

The role is on-site in Ljubljana, Slovenia. Relocation support will be provided Different collaboration options are available, from employment to contract, in a full-time capacity.

In this role, you will:

• Design and build core systems that power a real-time speech AI platform, with a focus on scalability, performance, and security.
• Collaborate with engineers, researchers, and product teams to bring new speech capabilities to market – and push the boundaries of what's possible in real-time voice AI.
• Develop internal tools and infrastructure that boost engineering velocity and system robustness.
• Own the full lifecycle of your work – from design to deployment to on-call operations – with a strong sense of responsibility and autonomy.

You might thrive here if you:

• Have deep knowledge of at least one of our core languages: C++, Python, Go.
• You are an enthusiast for programming, you deeply enjoy it and it's something you do for fun.
• You make decisions based on data and love direct feedback, no bureaucracy, and no bullshit approach.
• Have built and scaled production systems, ideally involving real-time data, distributed infrastructure, or machine learning pipelines.
• You understand ML Model Integration, basics of Networking, microservices and API design.
• Are obsessed with code quality and care about user experience – you take pride in building things that just work.
• Are hands-on, humble, and willing to dig into unfamiliar parts of the stack to solve real problems.
• Automate your way out of repetition, and know when to reach for existing tools vs building your own.
• Enjoy working in a startup environment where speed, ownership, and impact matter.
• Have been a founder or early engineer at a high-growth company (a plus, not a requirement).

Why Join

• 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 work in an environment where quality over quantity matters
• You'll have a voice in how our company grows, how our customers succeed, and how AI transforms human communication.
• We have modern, cozy offices with a super quiet atmosphere where you can focus, think or brainstorm.