Speech Research Scientist (TTS)

ConnexAI; Manchester; On-site; GBP 65,000 - 90,000; Full time

Job summary

ConnexAI in Manchester is seeking a TTS Research Scientist to advance real-time, multilingual voice technologies and natural-sounding agents. You will help drive state-of-the-art voice synthesis, exploring voice cloning, prosody control, and emotion to deliver engaging user experiences.

You will collaborate with our in-house Data Annotation team and fellow researchers, publish findings, and contribute to the end-to-end AI agent lifecycle across conferences and projects.

Qualifications

• PhD in Computer Science, Speech & Signal Processing or MSc with 2+ years of research experience.
• Strong knowledge of Generative AI, neural networks and modern LLMs.
• Expert-level Python and PyTorch programming.
• Ability to conduct independent research with minimal supervision.
• Excellent written and oral communication skills.

Responsibilities

• Research and develop state-of-the-art, high-fidelity, low-latency TTS systems focusing on naturalness, prosody and emotion.
• Develop voice cloning techniques for personalised agent experiences.
• Pair with junior team members to drive research goals and foster collaborative learning.
• Contribute to original research, publish papers, and represent the company at global AI conferences.
• Maintain steady biweekly progress within our sprint-based research environment.
• Write clear and concise technical documentation and research papers.

Skills

Python

PyTorch

Generative AI

Neural Networks

Research independence

Communication skills

Education

PhD in CS/Speech

MSc + 2+ years research

Job description

Can you see yourself revolutionising the Agentic AI industry? We are a multi-award-winning AI and SaaS provider based in Manchester, dedicated to boosting productivity and efficiency across our global customer base spanning five continents. As a TTS Research Scientist, you will be instrumental in giving our agents a natural, human-like voice.

This role offers a world-class research environment: you will work alongside like-minded research scientists, supported by our specialist in-house Data Annotation team. This enables you to move beyond public datasets and curate bespoke, high-quality data for custom model training. While your primary focus is real-time and multilingual TTS, we foster a cross-functional culture where you can also contribute to Speech Recognition projects, developing a holistic understanding of the full AI Agent lifecycle.

Responsibilities

• Research and develop state-of-the‑art, high‑fidelity, low‑latency TTS systems, with a focus on naturalness, prosody, and emotion.
• Develop voice cloning techniques for personalised agent experiences.
• Pair with junior team members to drive research goals and foster collaborative learning.
• Contribute to original research, publish papers, and represent the company at global AI conferences.
• Maintain steady biweekly progress within our sprint‑based research environment.
• Write clear and concise technical documentation and research papers.

Requirements

• PhD in Computer Science, Speech & Signal Processing, or a related field. Alternatively, an MSc and 2+ years of commercial or academic research experience in Speech or LLMs.
• Deep understanding of Generative AI, Neural Networks, and modern LLM architectures.
• Expert‑level proficiency in Python and PyTorch.
• Proven ability to conduct independent research with minimal supervision.
• Strong oral and written communication skills.