aimlroles

Full-Time - Senior Research Engineer for Speech Analysis

Sonyjapan Open · verified Oct 22, 2026
Tokyo Full-time Senior AI Research

At a glance

Senior AI Research role at Sonyjapan. Tokyo · full-time.

Pay not stated AI Research salary

RoleAI Research
SenioritySenior
LocationTokyo
EmploymentFull-time
PostedOct 8, 2026 · 2w ago
Role brief

aimlroles summary, based on the employer's posting.

What you'll do

  • Develop AI/ML methods for speech analysis, including speech language models, speaker diarization and broader audio understanding
  • Build core algorithms by applying engineering and mathematical methods to speech and audio problems
  • Analyze data, identify the factors that matter and choose techniques to solve research problems
  • Explore real-time audio streaming or combined audio-visual modeling when the work calls for it

What you bring

  • You hold or are pursuing a Ph.D. in computer science, AI/ML or a related discipline
  • You have research experience in AI/ML, speech processing or a closely related area
  • You can design and assess neural networks, then build optimization workflows with a deep learning framework on Linux
  • You can rapidly prototype algorithms in Python or modern C++

Who this fits

This senior research role suits someone focused on speech and audio AI/ML who can work across research and algorithm development. The position is full-time and based in Tokyo, Japan. A Python or C++ coding test is required.

From the employer

Technology Field
Speech/Audio Signal Processing
Machine Learning

Position Summary
Sony Group Corporation has an opening for a full-time Senior Research Engineer in AI/ML for speech analysis including large-scale speech foundation modeling, spoken language/audio understanding in one of our R&D laboratories. The candidate selected for this position will be responsible for research and development in the areas of speech-based large language modeling, speaker diarization, or general audio understanding with state-of-the-art AI/ML technologies, to contribute to Sony's businesses such as games, films, music and other products and services. Further, extending the model to real-time streaming capabilities or to audio-visual multi-modality can also fall within the scope.

Responsibilities
Responsibilities include the investigation and utilization of complex engineering and mathematical principles to develop core technologies, compose algorithmic structures, and find solutions to problems. As a Senior Research Engineer, you will work on problems of diverse scopes, where data analysis requires the evaluation of identifiable factors and the demonstration of good judgement in the selection of methods and techniques for finding solutions.

Required qualifications
■ Ph.D. Degree (graduated or currently pursuing) in computer science, AI/ML, or a related field.
■ Research background in AI/ML, speech processing, and/or related areas.
■ Excellent neural network modeling and analysis skills are required, and the ability to formulate optimization flow using PyTorch, TensorFlow, or an equivalent deep learning framework on a Linux platform is essential.
■ Excellent programming skills in Python and/or modern C++ for rapid algorithm prototyping.

Preferred qualifications
■ 3 years of experience in computer science, AI/ML, or a related field.
■ Knowledge and experience in natural language processing is a plus.

Product, Service
Games (PlayStation games, smartphone applications, etc.), movies/music (content creation support), video analysis (broadcast content, online video, etc.), robots (aibo), financial services (human operation support and data analysis), etc.

Development Environment
■ OS: Windows and Linux
■ Programming Languages: Python, C/C++, etc.
■ PC, Server, Cloud Computing

Application Requirements
Essay: Not Required

Coding test: Required (Python/C++)

Required Skills:

Optional Skills: