Data Science || Full time role || Sunnyvale,CA
Hybrid in Sunnyvale, CA, US • Posted 30+ days ago • Updated 2 days ago

Pioneer IT Systems LLC
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Job Details
Skills
- Data Science
Summary
Hi,
Please find the requirements below. If you feel comfortable with the role(s), kindly reply with your updated resume, and I will get back to you.
Data Science | Full-Time Role | Sunnyvale, CA | W2
Exclusive Positions
- Manager of Data Science
- Principal Engineer of Data Science
- Staff Engineer of Data Science
Must-Have Skills
- Generative AI
- Time Series experience (forecasting models)
- Prompt engineering and fine-tuning
- LLMs, RAG, BERT, GPT
- Appropriate leveling:
- Manager: Prior people management experience
- Principal: Senior-most technical contributor on the team
- Staff: At least lead-level experience
Manager of Data Science
Position Summary
Manage a team of data science and machine learning engineers to develop and deploy traditional data science and Generative AI applications supporting the Walmart Finance department.
Responsibilities
- Build models that solve specific business outcomes using large-scale Walmart data and open-source or in-house tools
- Grow a team of domain experts in NLP, LLMs, time series forecasting, and recommendation systems across retail and e-commerce domains
- Drive execution of model and system development
- Collaborate with clients and cross-functional teams to deliver impactful solutions
- Stay up to date with ongoing research and development
- Partner with data scientists to design and architect AI/ML/DL systems
- Work with ML engineers to deploy, operate, and optimize scalable solutions
Qualifications
- Experience with NLP, LLMs, time series, and traditional ML techniques
- Retail and e-commerce data science experience
- Experience managing mid-sized teams of data scientists and MLEs
- Proven cross-functional leadership
- Strong organizational, communication, and influencing skills
- Detail-oriented and results-driven mindset
Principal Engineer of Data Science
Responsibilities
- Develop LLM-powered intelligent experiences using structured and unstructured data
- Build personalized, context-aware Q&A systems
- Design conversational recommendation systems using agent-based architectures
- Advance traditional recommender systems into interactive, multi-topic experiences
- Build multi-agent workflows that translate natural language into goal-driven tasks
- Collaborate with DS, MLE, Product, and UX teams
- Deploy, monitor, and optimize AI/ML systems in production
- Define and uphold responsible and trustworthy AI standards
- Contribute to internal and external AI/ML research
Qualifications
- Experience deploying high-risk NLP applications in production environments
- Strong background in Trustworthy AI and Responsible ML
- Mentorship experience for junior data scientists
- Strong foundation in statistics, optimization, and deep learning
- Advanced Python skills and experience with ML/DL frameworks (PyTorch, TensorFlow)
- Experience with ML infrastructure (MLflow, Kubeflow, Airflow – plus)
Bonus Skills
- Text-to-SQL or Text-to-Cypher systems
- LLM fine-tuning, prompt engineering, RAG
- Publications in top-tier ML/NLP conferences (NeurIPS, ICML, ACL, EMNLP, ICLR)
Staff Engineer of Data Science
Responsibilities
- Lead teams building large-scale Generative AI systems
- Develop data science tools for retail and e-commerce
- Leverage LLMs for summarization and large-scale applications
- Collaborate with product and business stakeholders to productionize solutions
- Build GenAI systems to support financial planning and decision-making
Qualifications
- Master’s or PhD in a quantitative field
- 5+ years of analytics or data science experience
- Strong solution architecture mindset
- Experience with training and inference of large-scale AI/ML models
- Expertise in LLM ecosystems (GPT, LLaMA, Mistral, Claude, Gemini, etc.)
- Hands-on experience with RAG, AI agents, LangChain, LangGraph
Nice to Have
- Spark and big data processing
- Cloud ML experience (Google Cloud Platform, Azure)
- GPU-based deep learning model training
Behavioral Skills
- Strong problem-solving mindset
- Comfortable with ambiguity and fast-paced environments
- Collaborative leadership style
- Ability to manage multiple cross-functional initiatives
Website:
Thanks & Regards,
Neeraj
IT Resource Manager
Pioneer IT Systems
Email:
Mobile:
- Dice Id: 91165450
- Position Id: 8827047
- Posted 30+ days ago
Company Info
About Pioneer IT Systems LLC
Pioneer IT Systems is a leading global provider of consulting, outsourcing, learning, and technology services. With operations spanning across two countries, we leverage our practical and relevant technology platforms, process excellence, deep domain expertise, and strategic enterprise partnerships to deliver superior business results for our clients.
Pioneer IT Systems started in 2013 as a technology-enabled services company focused on Web based Technologies / Application programming technologies (Java , J2EE , Web sphere Portal, .Net, Salesforce, Big Data..etc) , Web designing , Embedded System programming languages like C, C++ etc And Web services with an innate ability to apply these technologies meaningfully to improve operational efficiency and customer experience. We have adequate expertise on platforms to handle complex business processes across a wide range of industry domains like mortgage, healthcare, banking, and retail. We provide comprehensive consulting, outsourcing, learning, and technology solutions.


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