Sammy D.

If your business is sitting on data and not getting value from it, or you need to integrate AI into your product or operations, that's the exact problem I solve.

I build AI agents, LLM-powered workflows, predictive models, and production analytics systems for companies across industries. Whether you need a Claude or GPT-powered agent that takes real actions, a RAG system over your internal docs, an ML model deployed to AWS, or a live dashboard pulling from your CRM and ad platforms, I've built all of it for real clients and I can build it for you.

What I work on:

• AI agents and agentic workflows (tool use, function calling, multi-step automation)
• LLM integration and RAG pipelines (OpenAI, Anthropic, vector databases)
• ML model development and cloud deployment (AWS Lambda, Docker, XGBoost, scikit-learn)
• Marketing and product analytics dashboards (HubSpot, Facebook Ads, Google Ads, Tableau, Power BI)
• Data pipelines and ETL/ELT workflows (Python, SQL, dbt, Snowflake, BigQuery)
• Data science and AI instruction for teams and individuals

Background: I previously served as a Senior Data Scientist at Snow Fox Data, where I built time-series forecasting and optimization systems for clients including Mitsubishi and Oshkosh Defense. Through my consultancy, Stepwise Data LLC, I've since partnered with 60+ organizations across 10+ industries, including TimeDoc Health, InStride, Big Thought, and JPL.

Clients have said:

• "Great experience working with Sammy. Very communicative and quick to make adjustments and changes I requested!"

• "I hired Sammy to help crunch numbers on a marketing survey and was impressed by his availability, patience, high quality deliverables and clear, concise communication. If you're looking for McKinsey-grade talent on a visible, data-driven analysis, hire Sammy. I'm glad I did."

• "Sammy quickly translated our business and data challenges and architected a great solution and also made a couple of creative suggestions that we really appreciated. This product is immediately useful to our business and has great expansion capabilities built in. Highly recommended, thank you again."

• "Sammy was a delight to work with. He is smart and passionate about his field. What really impressed me was his communication skills. He seemed to be able to anticipate what I was trying to ask even if I was struggling to formulate my question. And he was very good at explaining. After the job was completed, he went above and beyond my expectations by preparing documentation. Do yourself a favor and hire him!"