Data Scientist 3

Comcast brings together the best in media and technology. We drive innovation to create the world's best entertainment and online experiences. As a Fortune 50 leader, we set the pace in a variety of innovative and fascinating businesses and create career opportunities across a wide range of locations and disciplines. We are at the forefront of change and move at an amazing pace, thanks to our remarkable people, who bring cutting-edge products and services to life for millions of customers every day. If you share in our passion for teamwork, our vision to revolutionize industries and our goal to lead the future in media and technology, we want you to fast-forward your career at Comcast.

Job Summary

Responsible for developing and deploying machine learning algorithms. Evaluates accuracy and functionality of machine learning algorithms. Translates application requirements into machine learning problem statements. Analyzes and evaluates solutions both internally generated as well as third party supplied. Develops novel ways to use machine learning to solve problems and discover new products. Has in-depth experience, knowledge and skills in own discipline. Usually determines own work priorities. Acts as resource for colleagues with less experience.

Job Description

About the Role:

We are seeking an experienced Data Scientist to join our growing Operational Intelligence team. You will play a key role in building intelligent systems that help reduce alert noise, detect anomalies, correlate events, and proactively surface operational insights across our large-scale streaming infrastructure.

You’ll work at the intersection of machine learning, observability, and IT operations, collaborating closely with Platform Engineers, SREs, Incident Managers, Operators and Developers to integrate smart detection and decision logic directly into our operational workflows.

This role offers a unique opportunity to push the boundaries of AI/ML in large-scale operations. We welcome curious minds who want to stay ahead of the curve, bring innovative ideas to life, and improve

the reliability of streaming infrastructure that powers millions of users globally.

What You’ll Do

• Design and tune machine learning models for event correlation, anomaly detection, alert scoring, and root cause inference
• Engineer features to enrich alerts using service relationships, business context, change history, and topological data
• Apply NLP and ML techniques to classify and structure logs and unstructured alert messages
• Develop and maintain real-time and batch data pipelines to process alerts, metrics, traces, and logs
• Use Python, SQL, and time-series query languages (e.g., PromQL) to manipulate and analyze operational data
• Collaborate with engineering teams to deploy models via API integrations, automate workflows, and ensure production readiness
• Contribute to the development of self-healing automation, diagnostics, and ML-powered decision triggers
• Design and validate entropy-based prioritization models to reduce alert fatigue and elevate critical signals
• Conduct A/B testing, offline validation, and live performance monitoring of ML models
• Build and share clear dashboards, visualizations, and reporting views to support SREs, engineers and leadership
• Participate in incident postmortems, providing ML-driven insights and recommendations for platform improvements
• Collaborate on the design of hybrid ML + rule-based systems to supportnamic correlation and intelligent alert grouping
• Lead and support innovation efforts including POCs, POVs, and explorationemerging AI/ML tools and strategies
• Demonstrate a proactive, solution-oriented mindset with the ability to navigate ambiguity and learn quickly
• Participate in on-call rotations and provide operational support as needed
  
  

Qualifications

• Bachelor's or Master's degree in Computer Science, Data Science, Machine Learning, Statistics or a related field
• 5+ years of experience building and deploying ML solutions in production environments
• 2+ years working with AIOps, observability, or real-time operations data
• Strong coding skills in Python (including pandas, NumPy, Scikit-learn, PyTorch, or TensorFlow)
• Experience working with SQL, time-series query languages (e.g., PromQL), and data transformation in pandas or Spark
• Familiarity with LLMs, prompt engineering fundamentals, or embedding-based retrieval (e.g., sentence-transformers, vector DBs)
• Strong grasp of modern ML techniques including gradient boosting (XGBoost/LightGBM),
  
  

autoencoders, clustering (e.g., HDBSCAN), and anomaly detection

• Experience managing structured + unstructured data, and building features from logs, alerts, metrics, and traces
• Familiarity with real-time event processing using tools like Kafka, Kinesis, or Flink
• Strong understanding of model evaluation techniques including precision/recall trade-offs, ROC, AUC, calibration
• Comfortable working with relational (PostgreSQL), NoSQL (MongoDB), and time-series (InfluxDB, Prometheus) databases
• Ability to collaborate effectively with SREs, platform teams, and participate in Agile/DevOps workflows
• Clear written and verbal communication skills to present findings to technical and non-technical stakeholders
• Comfortable working across Git, Confluence, JIRA, & collaborative agile environments
  
  

Nice To Have

• Experience building or contributing to the AIOps platform (e.g., Moogsoft, BigPanda, Datadog, Aisera, Dynatrace, BMC etc.)
• Experience working in streaming media, OTT platforms, or large-scale consumer services
• Exposure to Infrastructure as Code (Terraform, Pulumi) and modern cloud-native tooling
• Working experience with Conviva, Touchstream, Harmonic, New Relic, Prometheus, & event- based alerting tools
• Hands-on experience with LLMs in operational contexts (e.g., classification of alert text, log summarization, retrieval-augmented generation)
• Familiarity with vector databases (e.g., FAISS, Pinecone, Weaviate) and embeddings-based search for observability data
• Experience using MLflow, SageMaker, or Airflow for ML workflow orchestration
• Knowledge of LangChain, Haystack, RAG pipelines, or prompt templating libraries
• Exposure to MLOps practices (e.g., model monitoring, drift detection, explainability tools like SHAP or LIME)
• Experience with containerized model deployment using Docker or Kubernetes
• Use of JAX, Hugging Face Transformers, or LLaMA/Claude/Command-R models in experimentation
• Experience designing APIs in Python or Go to expose models as services
• Cloud proficiency in AWS/GCP, especially for distributed training, storage, or batch inferencing
• Contributions to open-source ML or DevOps communities, or participation in AIOps research/benchmarking efforts.
• Certifications in cloud architecture, ML engineering, or data science specializations, confluence pages, white papers, presentations, test results, technical manuals, formal recommendations and reports. Contributes to the company by creating patents, Application Programming Interfaces (APIs).
  
  

Comcast is proud to be an equal opportunity workplace. We will consider all qualified applicants for employment without regard to race, color, religion, age, sex, sexual orientation, gender identity, national origin, disability, veteran status, genetic information, or any other basis protected by applicable law.

Base pay is one part of the Total Rewards that Comcast provides to compensate and recognize employees for their work. Most sales positions are eligible for a Commission under the terms of an applicable plan, while most non-sales positions are eligible for a Bonus. Additionally, Comcast provides best-in-class Benefits to eligible employees. We believe that benefits should connect you to the support you need when it matters most, and should help you care for those who matter most. That’s why we provide an array of options, expert guidance and always-on tools, that are personalized to meet the needs of your reality – to help support you physically, financially and emotionally through the big milestones and in your everyday life. Please visit the compensation and benefits summary on our careers site for more details.

Education

Bachelor's Degree

While possessing the stated degree is preferred, Comcast also may consider applicants who hold some combination of coursework and experience, or who have extensive related professional experience.

Relevant Work Experience

5-7 Years