Senior Data Scientist

Overall Purpose

This role will co-own critical AI deliverables for AT&T Finance Operations, supporting Treasury/Payments, Billing Operations and Corporate Financial Planning deliverables. Significant experience with these partners, their KPIs, processes and business challenges is preferred. You will translate business problems into actionable insights through a comprehensive workflow involving coding, data extraction, cleansing, feature engineering, exploratory data analysis, model creation and tuning, visualization, and deployment, leveraging statistical analysis, machine learning, and big data technologies to drive informed decision-making and innovation.

Key Roles and Responsibilities

• Collect data from various structured and unstructured sources (datalakes, databases, data warehouses, on cloud, internal, external) and ensure its quality for analysis through cleaning and preprocessing.
• Design, build, and analyze large (e.g. 100's of Terabytes or higher as technology advances) and complex data sets while thinking strategically about data use and data design.
• Create relevant features and conduct exploratory data analysis.
• Code solutions following typical workflow: data extraction, cleansing, feature engineering, exploratory data analysis, model selection/creation, hyper-parameter tuning, model interpretation, model retraining, business process and/or system implementations, high level proof of concept and trials, visualization, deployment to production, post deployment ML ops monitoring/diagnosis/resolutions.
• Build, evaluate, and optimize machine learning models through hyperparameter tuning.
• Implement models into production, continuously monitor their performance, and ensure they remain explainable and reliable to minimize model decay.
• Develop custom Machine Learning (ML).
• Create visualizations and reports for stakeholders while working closely with cross-functional teams to align efforts with business objectives.
• Develop and implement generative AI models, focusing on creating new content or augmenting existing data.

Skills and Proficiency

• Coding proficiency required in at least one data science language (Python, R, Scala, etc.), as well as expertise with modern ML packages and libraries (Spark, SciKitLearn, Pandas, PyTorch, TidyVerse, Tensorflow, Keras, Shiny, and/or AutoML tools).
• Highly proficient in the full AI workflow such as (1) data extraction, cleansing, feature engineering, exploratory data analysis, model selection/creation, hyper-parameter tuning, model interpretation, model retraining and (2) Uses concepts like mlflow to log metrics.
• Well-versed in Interactive Development Environments (IDEs) such as Databricks Workspaces or Visual Studio Code.
• Proficiency in algorithm categories such as Supervised Learning, Unsupervised Learning, Optimization Algorithms, Deep Learning, AI-Computer Vision, Natural Language Processing, Deep Reinforcement Learning, Search Algorithms, and AI-Knowledge Graphs.
• Can utilize advanced coding methods to produce visualizations (e.g. ggplot, D3.js, etc.).
• Generative Models - Understanding of GANs (Generative Adversarial Networks), VAEs (Variational Autoencoders), and Transformers.
• Fine-Tuning - Techniques for adapting pre-trained models to specific tasks using smaller, task-specific datasets.
• Agentics - Understanding of agentic architecture, concepts and optimization of solutions.
• Prompt Engineering - Crafting effective prompts to guide generative models in producing desired outputs.
• Retrieval-Augmented Generation (RAG) - Combining generative models with retrieval systems to enhance performance and relevance.
• Text Generation - Proficiency in using models like GPT-3/4 for generating human-like text.
• Image Generation - Familiarity with tools like DALL-E and Stable Diffusion for creating images from text descriptions.

Qualifications

• Master's degree (MS/MA) required from an accredited University in a Quantitative field of study such as Data Science, Math, Statistics, Engineering or Physics.
• 3+ years of related experience.
• Certification is required in some areas.
• An experienced professional with advanced, interdisciplinary knowledge, resolving difficult and complex issues using broad professional concepts.
• Guides others, applying advanced principles and company practices.
• Leads moderate sized projects (or parts of larger projects) with strategic value.
• Operates autonomously with frequent senior leadership interaction.
• Performs complex data science work, builds business models, and makes recommendations for improvements.

Pay

• Annual salary range: $139,000.00 - $233,500.00 USD. Individual starting salary within this range may depend on geography, experience, expertise, and education/training.

Benefits

• Medical/Dental/Vision coverage
• 401(k) plan
• Tuition reimbursement program
• Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays)
• Paid Parental Leave
• Paid Caregiver Leave
• Additional sick leave beyond what state and local law require may be available but is unprotected
• Adoption Reimbursement
• Disability Benefits (short term and long term)
• Life and Accidental Death Insurance
• Supplemental benefit programs: critical illness/accident hospital indemnity/group legal
• Employee Assistance Programs (EAP)
• Extensive employee wellness programs
• Employee discounts up to 50% off on eligible AT&T mobility plans and accessories, AT&T internet (and fiber where available) and AT&T phone

Schedule

Weekly Hours: 40. Time Type: Regular. This position requires office presence of a minimum of 5 days per week and is only located in the location(s) posted. No relocation is offered.

Location: Atlanta, Georgia, Dallas, Texas