We are seeking a Senior AI Engineer to lead the development and deployment of high-performance machine learning systems, with a focus on speech technologies and multimodal AI. This role is central to advancing core capabilities in speech-to-text (STT), text-to-speech (TTS), and real-time inference, ensuring robust performance in production environments.
Key Responsibilities
- Design, train, and optimize machine learning models for speech processing and multimodal understanding
- Develop scalable data collection pipelines and efficient training infrastructures
- Build and refine reinforcement learning frameworks, including alignment techniques such as RLHF
- Optimize inference systems for ultra-low latency and high throughput in real-time applications
- Enable third-party developers to integrate AI capabilities through reliable, well-documented systems
Qualifications
Applicants should have a strong technical foundation and hands-on experience in machine learning and software engineering. A degree in computer science, mathematics, physics, or a related field is required, along with at least three years of practical work in ML-driven systems.
- Proficiency in Python or C++ and experience with PyTorch or similar frameworks
- Proven work in speech processing, NLP, video analysis, or action planning
- Solid understanding of neural network architectures, algorithms, and data structures
- Experience automating workflows using AI agents
Preferred Background
- Active engagement with emerging research in voice AI and machine learning
- Familiarity with pre-training, fine-tuning, and evaluating large-scale models
- Experience deploying models on edge devices or embedded systems
- Strong mathematical or physical sciences foundation
- Ability to thrive in a fast-moving, collaborative research environment
Work Environment
This position supports remote work within the United Kingdom. The team operates in a product-driven research culture focused on achieving state-of-the-art results in AI modeling. The company is recognized globally for innovation in artificial intelligence and maintains a dynamic, forward-thinking workplace.
Candidates must have the legal right to work in the United Kingdom. Limited relocation support to the United States may be available in the future for qualified individuals meeting immigration requirements.

