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# Senior Data Scientist

- **Company:** Lenovo
- **Location:** United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** 3d Models, Artificial Intelligence, Computer Programming, Data Visualization, Intrusion Detection Systems, Python (Programming Language), Machine Learning, NumPy, Power BI, Tensorflow, Security Information and Event Management, SQL Databases, Data Streaming, Tableau (Software), Data Processing, Feature Engineering, Pytorch, Deep Learning, Pandas, Scikit Learn, Information Technology, Malware Detection, Machine Learning Operations, Kibana, Data Pipelines, Unsupervised Learning
- **Published:** July 22, 2026
- **Apply:** https://arc.dev/remote-jobs/j/redirect/p6l8rhw63o

## About the Role

* Education: BSc/MSc in Computer Science, Electrical Engineering, Data Science, Mathematics, or related field
 * 4 years of hands-on experience building and shipping ML models.
 * Core ML skills: solid grasp of supervised/unsupervised learning, evaluation for imbalanced data, feature engineering, cross - validation, and error analysis.
 * Programming data: proficiency in Python, SQL; strong with pandas, NumPy, scikit - learn; experience with at least one deep learning framework (PyTorch or TensorFlow).
 * Systems performance mindset: demonstrated ability to design models under resource constraints (CPU/memory/IO) and latency budgets; comfortable profiling and optimizing code and inference paths.
 * Data handling: experience building robust data pipelines; ability to work with messy, high - volume logs and streaming data; strong data quality and validation practices.
 * Excellent problem-solving skills and ability to work in a fast-paced, collaborative environment.

Preferred Requirements

 * BI-oriented visualization: ability to design clear, actionable graphs, charts, heatmaps, time-series views, and dashboards for stakeholders; hands-on with Power BI/Tableau/Kibana or other visualization tools
 * Security product experience: hands-on work in EDR/XDR/SIEM/NDR/IDS/IPS, UEBA, malware detection, threat scoring, or incident response analytics.
 * Privacy robustness: knowledge of privacy-preserving techniques (e.g., differential privacy, federated learning) and adversarial ML.

## Description

Lenovo Digital Trust Lab seeks for a hands-on and innovative Data Scientist to join our cutting-edge research team. This role will directly support our Hybrid AI initiative as well as our Device, Infrastructure, and Services security programs, focusing on advancing security, privacy, and trust through innovative research and applied AI.

You will work across disciplines and play a key role in building the next-generation AI Security platform using effective, AI-driven defenses-translating theoretical ideas into practical, real-world impact., * Own the full ML lifecycle: data acquisition, labeling strategies (manual, weak supervision, active/semi - supervised), EDA, feature engineering, model training, evaluation, and deployment.

 * Modeling across paradigms: build supervised classifiers, unsupervised anomaly detectors, ensembles, and semi-supervised approaches tailored to imbalanced, noisy, and streaming security data.
 * Performance efficiency: optimize models for strict resource budgets (CPU, memory, disk/IO) and low-latency inference; apply techniques like pruning, quantization, distillation, feature hashing, and batching.
 * Maintain awareness of the latest research and technologies in security, AI, and trust, and evaluate their relevance for our innovation pipeline.


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