Senior Data Scientist Requisition ID: R-10365123 Date posted: 08/26/2025 End Date: 09/02/2025 City: Alpharetta State/Region: Georgia Country: United States Additional Locations: Washington, District of Columbia Location Type: Onsite Job Description As a Senior Data Scientist within Data Commerce Solutions, you will design and develop products and solutions to drive innovation. You will leverage Artificial Intelligence, Machine Learning and Deep Learning models in addition to other statistical techniques to target specific business objectives and create other business opportunities. Responsibilities You will design and develop inventive products & solutions to drive innovation leveraging AI/ML/DL models to target specific business objectives and create other business opportunities. Design and develop custom ML, Gen AI, NLP, LLM Models for batch and stream processing-based AI ML pipelines. Utilize LangChain / LlamaIndex for advanced language processing tasks. Perform fine-tuning of models and work with Parameter‑Efficient Fine‑Tuning (PEFT), RAG, and Agentic AI Frameworks. Work in a highly collaborative, team environment, and collaborating with multiple stakeholders including business, product development, architecture and engineering teams to develop, deploy, monitor and maintain ML models. Assist in the communication of insights and the implementation of impactful data science solutions across the organization. Qualifications Bachelors degree in Statistics, Data Science, Computer Science, Operations Research or related field. 5 years of hands‑on experience leveraging large sets of structured and unstructured data to develop data-driven tactical and strategic analytics and insights using ML, RAG, and NLP. 5 years of experience formulating research or business problems, designing, experimenting, implementing and communicating solutions. Proficiency in tokenization and embeddings, as well as experience creating models, improving model training and tuning, and deploying Large Language Model architectures based on LLaMA, BERT, or Transformer‑based models. Hands‑on experience with Python, Hugging Face, TensorFlow, Keras, PyTorch and Agentic AI frameworks. Strong knowledge of statistical data analysis and machine learning techniques (e.g., SVM, regression, classification, clustering, time series) and familiarity with financial analytics, time series econometrics, payment processing and marketing strategies. Working knowledge of Hadoop, Hive, Impala, RDBMS, SQL, Snowflake, Vertica & RDBMS, or NoSQL Databases. Familiarity with data platforms and applications such as Azure ML, Databricks ML, AWS SageMaker and experience contributing to GitHub and open-source initiatives. Nice to Have Masters degree, PhD, or equivalent practical experience, in Computer Science, or related technical field. Publication record in relevant conferences and/or participation in Kaggle competitions. Salary Range $78,000.00 - $138,000.00 These pay ranges apply to employees in Illinois, California and District of Columbia. Pay ranges for employees in other states may differ. Equal Opportunity Statement Fiserv is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, gender, gender identity, sexual orientation, age, disability, protected veteran status, or any other category protected by law. Additional Information It is unlawful to discriminate against a prospective employee due to the individual's status as a veteran. For incentive eligible associates, the successful candidate is eligible for an annual incentive opportunity which may be delivered as a mix of cash bonus and equity awards in the Company's sole discretion. Thank you for considering employment with Fiserv. Please: Apply using your legal name Complete the step‑by‑step profile and attach your resume (either is acceptable, both are preferable). If you have a disability and require a reasonable accommodation in completing a job application or otherwise participating in the overall hiring process, please contact AskHR.US@fiserv.com. #J-18808-Ljbffr fiserv ce pvt ltd
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