Senior Machine Learning Engineer

NICE; Sandy (UT); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

NiCE-FLEX hybrid model

Global collaboration

Career growth opportunities

Job summary

NiCE is seeking a Senior Machine Learning Engineer to join NiCE Labs Research (NLR). You will own the evaluation and optimization of speech-oriented AI models, covering real-time transcription and speech-to-speech systems across languages.

This role focuses on rigorous measurement, test suites, and actionable model recommendations. You will monitor the evolving speech AI landscape, design and maintain a speech-oriented test suite, and develop techniques to optimize model usage for deployment.

Qualifications

• MS in computer science, electrical engineering, computational linguistics, or a related field with a focus on speech or audio processing.
• Three or more years of hands-on experience with speech AI systems, including ASR, TTS, or speech-to-speech models.
• Experience designing evaluation methodologies or test suites for AI systems.
• Strong quantitative and analytical skills, with experience producing rigorous benchmark results.
• LoRA/PEFT for speech models, inference optimization (quantization, SGLang/vLLM serving for audio, distillation), experience with at least one open-source TTS family.
• GPU cost modeling.
• Proficiency in Python and familiarity with speech processing libraries and tools.
• Experience with cloud-based infrastructure (AWS, Azure, or GCP).
• Ability to develop and maintain good working relationships with cross-functional teams.
• Ability to clearly communicate and present to internal and external stakeholders.

Responsibilities

• Design and maintain a speech-oriented test suite covering quality, cost, and latency across dozens of languages.
• Monitor the industry for new state-of-the-art transcription and speech-to-speech models to evaluate.
• Design and evaluate techniques to optimize speech model usage for operational deployment.
• Produce clear, quantitative evaluation reports and model recommendations for technical and non-technical stakeholders.
• Contribute to the broader model evaluation framework maintained by the NLR team.
• Stay informed of advances in speech AI, including transcription, text-to-speech, and speech-to-speech technologies.

Skills

Speech AI

Python

Cloud infra

LoRA/PEFT

Evaluation methodologies

GPU cost modeling

Benchmarking

Stakeholder communication

Cross-functional teamwork

Education

MS in CS/EE/Computational linguistics

Tools

ASR/TTS toolchains

Speech libraries

Open-source TTS

Job description

At NiCE, we don’t limit our challenges. We challenge our limits. Always. We’re ambitious. We’re game changers. And we play to win. We set the highest standards and execute beyond them. And if you’re like us, we can offer you the ultimate career opportunity that will light a fire within you.

So, what’s the role all about?

NiCE is looking for a Senior Machine Learning Engineer to join NiCE Labs Research (NLR), a team dedicated to model expertise and agent architecture for the Cognigy platform. As Senior Machine Learning Engineer, you will own the evaluation and optimization of speech-oriented AI models—covering real-time transcription and speech-to-speech systems across dozens of languages.

This role is primarily concerned with rigorous measurement: designing test suites, running comparative evaluations, and producing actionable recommendations on model selection and configuration.

The Senior Machine Learning Engineer monitors the rapidly evolving speech AI landscape to identify state-of-the-art transcription and speech-to-speech models for evaluation. You will design and maintain a speech-oriented test suite that covers quality, cost, and latency, and develop techniques to optimize model usage for operational deployment.

This role requires deep expertise in speech AI systems, strong quantitative skills, and the discipline to produce reliable, reproducible evaluation results.

How will you make an impact?

• Design and maintain a speech-oriented test suite covering quality, cost, and latency across dozens of languages.
• Monitor the industry for new state-of-the-art transcription and speech-to-speech models to evaluate.
• Design and evaluate techniques to optimize speech model usage for operational deployment.
• Produce clear, quantitative evaluation reports and model recommendations for technical and non‑technical stakeholders.
• Contribute to the broader model evaluation framework maintained by the NLR team.
• Stay informed of advances in speech AI, including transcription, text‑to‑speech, and speech-to-speech technologies.

Have you got what it takes?

• MS in computer science, electrical engineering, computational linguistics, or a related field with a focus on speech or audio processing.
• Three or more years of hands‑on experience with speech AI systems, including ASR, TTS, or speech-to-speech models.
• Experience designing evaluation methodologies or test suites for AI systems.
• Strong quantitative and analytical skills, with experience producing rigorous benchmark results.
• LoRA/PEFT for speech models, inference optimization (quantization, SGLang/vLLM serving for audio, distillation), experience with at least one open‑source TTS family.
• GPU cost modeling.
• Proficiency in Python and familiarity with speech processing libraries and tools.
• Experience with cloud‑based infrastructure (AWS, Azure, or GCP).
• Ability to develop and maintain good working relationships with cross‑functional teams.
• Ability to clearly communicate and present to internal and external stakeholders.

You will have an advantage if you have:

• Experience evaluating speech models across multiple languages.
• Familiarity with multi‑cloud deployment across AWS, Azure, and Google Cloud.
• Experience with model optimization techniques for speech systems, such as latency reduction or cost optimization.
• Exposure to contact center or conversational AI platforms.
• Experience working on international, globe‑spanning teams.

What’s in it for you?

We offer a collaborative, fast‑paced environment where innovation thrives. The role is part of the market‑leading NiCE Labs team, with opportunities for professional growth, cross‑functional projects, and impact on global AI solutions.

Enjoy NiCE‑FLEX!

At NiCE, we work according to the NiCE‑FLEX hybrid model, which enables maximum flexibility: 2 days working from the office and 3 days of remote work each week. Office days focus on face‑to‑face meetings, fostering teamwork, collaborative thinking, innovation, and a vibrant atmosphere.

Requisition ID: 11422

Reporting into: Director, Engineering, AI Research, NiCE Labs

Role Type: Individual Contributor

NiCE is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, age, sex, marital status, ancestry, neurotype, physical or mental disability, veteran status, gender identity, sexual orientation, or any other category protected by law.