Cinarra is a data-first company at the forefront of building Adtech and ID mapping solutions. We leverage cutting-edge technology and AI to transform data into actionable insights, driving the future of digital advertising and identity management.
Cinarra is a wholly owned by SoftBank.
We are hiring an AI/ML Engineer to join our AI team as a key contributor to model development and training. In this role, you will work on building, training, and improving machine learning models, preparing and curating datasets, and contributing to model accuracy, performance, and scalability. The role involves hands-on work with modern machine learning techniques, including transformer-based and representation learning models, in close collaboration with engineers, data scientists, and product partners.
Key Responsibilities
Develop, train, and evaluate machine learning and deep learning models.
Prepare and process large datasets for model training and inference.
Implement and optimize model architectures for data linking and representation learning.
Collaborate with engineering and product teams to integrate models into production workflows.
Analyze model performance and suggest improvements.
Minimum Requirements
Bachelor’s or Master’s degree in Data Science, Computer Science, Statistics, Mathematics, or a related field.
Proficiency in Python and core ML libraries (NumPy, Pandas, Scikit-learn, TensorFlow or PyTorch).
Understanding of embeddings, transformer models, and modern ML workflows.
Experience with data preprocessing, feature engineering, and evaluation metrics.
Strong analytical, problem-solving, and collaboration skills.
Nice to Have
Hands-on experience training or fine-tuning transformer or embedding models.
Familiarity with model tracking and version control (Git, MLFlow, Jupyter).
Experience in scalable ML systems and data infrastructure.
All your information will be kept confidential according to EEO guidelines.
Top Skills
What We Do
FOLLOW THE CUSTOMER JOURNEY Cinarra leverages deterministic Carrier data to provide advanced targeting, analytics and custom personas to drive revenue and results for Brands and Carriers. PROVEN COMMERCIAL SUCCESS Live with Softbank Corp, a leading carrier in Japan, we process billions of 4G/LTE and Wi-Fi location updates daily for 35 million people and across 500,000 venues. Cinarra is backed by established investors like SoftBank and Almaz Capital, a Silicon Valley VC firm.






