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Aiphoria

Machine Learning Engineer TTS

Remote

London, United kingdom

Full Time

12-01-2026

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Skills

Python Test A/B Testing Training PyTorch Deep Learning Computer Vision

Job Specifications

We are now expanding our team and are looking for skilled, goal-oriented MLE (TTS) to join our teams.

Requirements

Hands-on experience with Text-to-Speech (TTS) / speech synthesis
Proficiency in Python and deep learning frameworks (especially, PyTorch).
Strong understanding of speech synthesis processing techniques.
Experience with Fast Attention-Based Models: (FastPitch, FastSpeech 2) and modern variative approaches: (e.g., VITS, Glow-TTS).
Strong understanding of techniques to control prosody, rhythm, and emotional tone for expressive speech synthesis.
Knowledge of normalization techniques, FSTs, NN for normalization.
Familiarity with TTS evaluation techniques, including MOS and A/B testing.
Familiarity with vocoder models (e.g. Vocos, HiFi-GAN, mimi).
Knowledge of signal processing, statistical modeling, and language structure.

Responsibilities

Design and optimize TTS models to ensure our voice assistant sounds as natural and accurate as possible.
Collaborate closely with product managers and engineers to integrate TTS tech, making it seamless and intuitive for users.
Partner with data teams to build efficient audio data pipelines, from speaker recording/preprocessing to model training.
Regularly update and refine TTS models to adapt to various accents, dialects, and speech styles, enhancing user satisfaction and responsiveness.
Keep up-to-date with the latest TTS advancements, bringing in innovative techniques and tools to keep us at the forefront of voice-assisted banking.
Rigorously test and validate models to meet strict standards.

What We Offer

Experienced team, Aiphoria is formed by a team of enthusiastic professionals who created award-winning devices, voice assistants and other AI-driven products for BigTech corporations.
Cutting-edge technologies, we build a technology using our areas of expertise including Computer Vision, Speech Technologies, Natural Language Understanding, Generative AI incl. LLM and Diffusion models.
Rapid career progression, facilitated by our team of seasoned senior professionals who hail from prestigious, industry-leading companies.
Remote work opportunities.
Company has prominent clients with an opportunity for you to work on different projects and/or to be involved in developing our proprietary own products.
Competitive compensation surpassing market standards.
A company with entrepreneurial spirit. We offer a unique mix of a secure workspace thanks to the big clients raised along with a true start-up culture!

About the Company

Aiphoria delivers an infinitely scalable workforce of AI-powered virtual employees for enterprise-grade Customer Support, Sales, Payments Management, Mass Recruitment, and other communication-intensive operations. Designed as voice-first workers, Aiphoria Pro agents can place phone calls, write messages, and respond to emails. They hold conversations with near-human quality while offering lower costs and virtually unlimited scalability — significantly boosting overall business efficiency. The Aiphoria Pro Platform also enabl... Know more