Senior Data Scientist Washington, DC
Arundeep Rayabandi
Position: Senior Data Scientist
Location: Washington, DC
Must have skills.
Machine Learning
Artificial Intelligence,
Large Language Models (LLMs)
Foundation Models
RAG
AI/ ML
Python
AWS OR Azure
Docker OR Kubernetes
Role Summary
We are seeking a highly skilled Senior
Data Scientist with expertise in Machine Learning, Artificial Intelligence, Large Language Models (LLMs), foundation models, and fine-tuning techniques.
This position is ideal for someone who is passionate about building enterprise-grade
AI & ML applications and applying cutting-edge techniques to real-world financial and payments challenges.
Key Responsibilities
- Design, build, and optimize Generative AI, LLM, and multimodal foundation models for enterprise fintech applications.
- Fine-tune or adapt open-source and proprietary models Build high-performance models for NLP, document intelligence, anomaly detection, risk scoring, predictive analytics, and decisioning use cases.
- Lead experimentation to evaluate model accuracy, scalability, and fairness. Partner with engineering teams to deploy models on cloud-based ML pipelines (Azure, AWS) & data platforms (Databricks & Snowflake) Work with large-scale structured and unstructured datasets across the payments and financial ecosystem.
- Implement model monitoring, drift detection, and continuous retraining strategies.
- Evaluate and operationalize new AI technologies, foundation model architectures, responsible AI frameworks, and emerging research.
- Drive POCs and innovation initiatives that enhance Fiserv s AI capabilities and differentiate our products.
Required Qualifications
Master s or PhD in Computer Science, Data Science, Machine Learning, AI, or related field.
- 8+ years of hands-on experience building and deploying machine learning models in production.
Proven expertise with LLMs, transformer architectures, transfer learning, and model fine-tuning. - Strong proficiency in Python, PyTorch or TensorFlow, and ML libraries such as Transformers.
- Experience with cloud ML platforms, containerization (Docker/Kubernetes), and MLOps tools.
Solid understanding of statistical modelling, optimization, and evaluation methodologies. - Strong communication skills and ability to collaborate in cross-functional, fast-paced environments. Preferred
Qualifications
- Experience working in fintech, payments, banking, or fraud/risk environments.
- Background in vector databases, RAG pipelines, and knowledge graph integration.
- Experience with data privacy, model governance, and Responsible AI frameworks.
- Contributions to open-source AI/ML communities or research publications.
Thanks & Regards,
Arundeep Rayabandi
Senior Talent Acquisition Specialist
American IT Systems
1116 S Walton Blvd, Suite 113 Bentonville, AR 72712
https://americanitsystems.com/
linkedin.com/in/arundeep-r-713a421b8
Phone No:::(479) 265 8527
