Senior Data Scientist – Machine Learning

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Calling all innovators – find your future at Fiserv.

We’re Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants and consumers to one another millions of times a day – quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we’re involved. If you want to make an impact on a global scale, come make a difference at Fiserv.

Job Title

Senior Data Scientist – Machine Learning

What does a successful Senior Data Scientist do at Fiserv?

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.
 

What you will do:

  • 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 Frameworks
  • Collaborate with the MLOps team to ensure smooth deployment and maintenance of models
  • Develop and lead presentations and consultations to existing and prospective constituents on analytics opportunities, results, and solution

What you will need to have:

  • Bachelor’s degree in Statistics, Data Science, Computer Science, Operations Research or related field.
  • 7+ 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.
  • 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 or similar statistical tools.
  • Experience working with complex object-oriented architecture coding solutions.
  • Familiarity with data platforms and applications such as Azure ML, Databricks ML, AWS Sage maker and experience contributing to GitHub and open-source initiatives.

What would be great to have:

  • Master’s degree, PhD, or equivalent practical experience, in Computer Science, or related technical field.
  • Publication record in relevant conferences and/or participation in Kaggle competitions.

Important info about this role:

  • We’re better together. This role is fully on-site.
  • This is a full-time, direct-hire position, and no contract options for unsolicited agency submissions will be considered.

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Salary Range

$88,500.00 – $158,100.00

These pay ranges apply to employees in New Jersey, New York and California. Pay ranges for employees in other states may differ.

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).

Our commitment to Equal Opportunity:

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. 

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. Please note our AskHR representatives do not have visibility to your application status. Current associates who require a workplace accommodation should refer to Fiserv’s Disability Accommodation Policy for additional information.

Note to agencies:

Fiserv does not accept resume submissions from agencies outside of existing agreements. Please do not send resumes to Fiserv associates. Fiserv is not responsible for any fees associated with unsolicited resume submissions.

Warning about fake job posts:

Please be aware of fraudulent job postings that are not affiliated with Fiserv. Fraudulent job postings may be used by cyber criminals to target your personally identifiable information and/or to steal money or financial information. Any communications from a Fiserv representative will come from a legitimate Fiserv email address.

Apply now
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