Christopher Caldarella

Chapel Hill, North Carolina ·

A seasoned Data Scientist and Software Engineer with over 10 years of experience in Information Technology, Software Engineering, Data Science, and Data Engineering. My expertise lies in developing high-quality solutions for diverse industries, including e-commerce, aerospace, supply chain, and financial technology.


Skills

Programming & Scripting
  • Python, C#, Ruby, JavaScript, HTML, CSS
Data Science and Machine Learning
  • Apache Spark, Databricks, NumPy, Pandas, Scikit-Learn, OpenCV, NLTK, SpaCy, LangChain, Matplotlib, Seaborn, Plotly, Azure OpenAI, ChatGPT
Databases & Query Languages
  • SQL, MySQL, TSQL, PostgreSQL, Relational Databases
Cloud & DevOps
  • AWS, Azure, Azure DevOps, GitHub Actions, GCP, CI/CD
Tools and Libraries
  • LangChain, FastAPI, Flask, Streamlit, PyTest, Git, GitHub, Power BI, Docker, Selenium, Beautiful Soup, Virtual Environments
Automation & Scripting
  • Bash Shell, PowerShell, OOP, Scripting, Batch files

Experience

Data Scientist Consultant

Insight Enterprises, Inc. - REMOTE
  • Delivered advanced data solutions for various clients, transforming and analyzing large datasets to optimize business processes.
  • Developed and deployed machine learning models and data pipelines using tools like Python, OpenCV, TensorFlow, AzureML, and GCP Pub/Sub.
Key Projects
Note that Company names have been changed to hide their identities.
  • Toy Company USA: Created data ingestion and transformation pipelines for Shopify API data integration with Salesforce and Ping Identity.
  • Airplane Sensors USA: Engineered features and developed an algorithm with 80% accuracy for hydraulic system leakage detection.
  • Drainpipe Systems USA: Developed a computer vision model for object detection and report generation using AWS Rekognition and SageMaker.
  • Supply Chain Company International: Created a custom Python library for data scientists using the AzureML Python SDK and integrated with VS Code via a Flask API.
  • Generative AI Solution (Internal): Built a web-based Generative AI tool using Azure ChatGPT, LangChain, FastAPI, and Streamlit.
  • AI Teleport (Internal): Developed a metadata interpretation tool using NLTK and SpaCy.
  • Project Ambition (Internal): Assisted in ETL processes for a FinTech team using Databricks.
October 2021 - Present

Data Scientist Fellow

General Assembly - REMOTE
  • Successfully completed 480+ hours of expert led instruction in Data Aggregation, Cleaning, Analysis, and Data Engineering and hands-on learning of Python and the fundamentals of many data-analysis libraries, including some of the industry's most in demand technologies.
December 2020 - March 2021

Staging Specialist

NCR - Northeast Depot - Concord, NH
  • Led hardware and software upgrades for Northeast Depot, a storage, staging, and shipping site for Restaurants and bars in the Northeast region
  • Created tools in Python to assist with migration to new software for On-Time delivery
December 2020 - March 2021

Escalation Technician / Customer Engineer II

NCR - Rocky Mountain - Arvada, CO
  • Led training and served as escalation point for technicians at all levels including new hires
  • Completed the Qdoba Software Upgrade project by supporting the client through a company acquisition and delivering outstanding customer service.
February 2019 - November 2020

Reconciliation Specialist / Installation Specialist

BEC - Arvada, CO
  • Maintain credit-card processing environment to review and compile credit card data while fixing Errors in non-cash financial records, determine financial loss, and perform reconciliations
  • Assist Major Account Clients with issues and delegating such projects as Major Accounts Technician and Communicate progress of client-issues to Major Accounts groups
  • Created Automated Report-Forwarding tool in C# which helped Product Managers and increased Help Desk productivity with its easy to use User Interface, and simple backend functionality
July 2014 - February 2019

Projects

Face (and Object) Tracker

Track objects using a Machine Learning and a Raspberrry Pi

Is it possible to track a person and their movement with a moving camera? I explored this with a Raspberry Pi and moving camera, and possibly exploring the idea of tracking a toddler (my son).

Using a Raspberry Pi and the Pimoroni Pan-Tilt HAT, I was able to utilize OpenCV and its many capabilities to track Objects (including face-detection). I was able to leverage the use of a Haar Cascade algorithm as well as YOLOv4-tiny (with the Darknet Distibuted-Neural-Network) to accomplish this, as well as create a User-Interface for easy interaction.

View the GitHub repository

View the Presentation Deck

Hotdog/Not-Hotdog

Convolutional Neural Net that predicts whether or not an image is a Hotdog

Inspired by the HBO Series, Silicon Valley, this is a re-creation of Jian-Yang's infamous Hotdog/Not-Hotdog App. This app uses a convolutional neural net (CNN) that can run a prediction on whether a picture contains an image of a hotdog or not.

View the GitHub repository

Try the App!

Reddit Classifier Using Natural Language Processing

Use NLP to compare text from two Sub-Reddits

I pulled textual-data from two similar subreddits using my webscraping skills, and compared the two data-sets using Supervised Machine Learning. I utilized a Bayesian model, among other models, to decipher where the entry came from, and analyzed the results to deduce which model performed best.

The two subreddits used are the "AMA" subreddit and the "AskReddit" subreddit. It is worth noting that I removed some data to make it more challenging for the Machine Learning Algorithm to make a decision.

View the GitHub repository

View the Presentation Deck

Air pollutants and Air Quality Index Analysis

Team Project exploring Time Series and using Linear Regression for Data Analysis

Through exploratory analysis of CDC and EPA data we wanted to evaluate a model that could be helpful for analyzing air pollutants with the thought of creating information for people with respiratory illness.

Knowing that increasing Air Quality Index (AQI) can negatively impact people with respiratory illensses, we wanted to evaluate the realtionship with air pollutants, temperature, day of the week, and month to see if we could identify any relationship to overall daily air quality data (from the EPA website).

View the GitHub repository

View the Presentation Deck

Electricity Consumption in North Carolina

A 6-hour challenge where I used Forecasting to make a Predictive-Model

Looking at electrical usage data from previous years, I used Forecasting to make a Predictive-Model that predicts Electrical consumption in North Carolina. I selected North Carolina because North Carolina appears to be the most average State out of the whole United States, based on this 2016 article from Business Insider. This was mostly completed within 6 hours (with a few caveats clearly outlined in the repository ReadMe file).

View the GitHub repository

View the Presentation Deck


Education

Rutgers School of Engineering


Certifications

Databricks


Certification Associate Data Engineer
2024

Microsoft


Certification Azure AI Fundamentals

Certification Azure Fundamentals
2023

General Assembly


Certification Data Science Immersive
2021

Scrum Alliance


Certification Scrum Master

Certification Scrum Product Owner
2020

Recognition

  • Recognizing Chris for his work in developing an AI bot for demos. It's been very helpful when discussing AI with clients, so that we have something to show them. It displays our technical abilities and helps to sell deals. Chris keeps driving this forward and adding new features.
    - 06/12/2024, Insight: Recognized for "Hunger"

  • Chris has been an outstanding addition to the [Toy Company USA] team. From the get-go, he was able to ramp up quickly and start making an impact on a project that had lost two thirds of its team. Thank you, Chris, for being such a great helping hand for always doing solid, quality work in the most positive manner. I really appreciate it.
    - 12/18/2023, Insight: Recognized for "Harmony"

  • Enormous 'thank you' to the team of instructors at the Python Fundamentals course. Great structure, bite-size material that is easy to understand and an easy access to instructors and their support made this course an amazing experience. Thank you team!
    - 06/22/2023, Insight: Recognized for "Harmony" after acting as an Instructor for an internal Python Fundamentals course

  • Thank you all for the time you put into creating content and leading our Python classes, Each class was digestible and fun! We grow as individuals and as a team when we take what we know and pass it on in a meaningful way. Great classes! Thanks to each of you for teaching us.
    - 05/25/2023, Insight: Recognized for "Hunger" after acting as an Instructor for an internal Python Fundamentals course

  • Chris and Murilo have done an amazing job jumping into the Python training, updating the course content and leading the first 2 weeks of classes. The students were engaging, content well laid out and they both set a high bar for the other instructors. Chris and Murilo have both brought great energy, fresh perspectives and new content to the Spring Cohort!
    - 05/12/2023, Insight: Recognized for "Hunger" after acting as an Instructor for an internal Python Fundamentals course

  • Thank you to Chris Caldarella for starting to build out linage data for our BI processes. We are just beginning a multifaceted set of capabilities that create content to help outline and provide transparency to the data we have available in our analytical space. Chris' work is part of a larger journey, but his efforts have already proven valuable in working to pan through our repo to see where objects are sourced from. Thanks for your help, Chris.
    - 04/28/2023 - Insight: Recognized for "Harmony"

  • Dimitri, Chris, Rob, and Matt banded together to stand up a client-ready demo of Azure OpenAI 'Chat with your own Data' using structured and unstructured industry-specific data - first, to help me answer critical questions for a client solution, and second, to break through ideation to a concrete, testable architecture that we can use as a template going forward. Thank all of you for getting this off the ground, in only 2 weeks!
    - 04/27/2023 - Insight: Recognized for "Hunger"

  • Chris, you rock! You completed the Lakehouse Fundamentals cert within hours of discussing it. Thanks for helping us improve our partnership status!
    - 03/23/2023 - Insight: Recognized for "Hunger"

  • I would like to recognize Chris for his Heart. When getting access to Azure Cognitive Services, setting up repos, learning the fundamental concepts that are important in our team's work, and being there for my ACE capstone idea-bouncing, Chris approached each of these requests with care and compassion. Thank you Chris
    - 12/22/2022 - Insight: Recognized for "Heart"

  • Thank you so much for your help with Simplif.ai!! I was awesome working with you. I hope we get to work together again sometime soon.
    - 12/19/2022 - Insight: Recognized for "Heart"

  • I wanted to thank Amy, Chris, and Dimitri for coming to support the Global BI team for Project Ambition. We are incredibly grateful to your leadership for lending us your expertise. I am looking forward to getting you all more engaged to support our different efforts in Q1! Thank you all again and have a Happy Holiday!
    - 12/16/2022 - Insight: Recognized for "Harmony"

  • Chris and Hailey recently delivered excellence on an fast-paced computer vision AI proof-of-concept in AWS for PipeView America. The rigor and collaboration you both brought to this project made it a win - you've proved to the client capabilities they did not know were possible with AI. Thank you for bringing your best to the client - they will be back for more!
    - 08/23/2022 - Insight: Recognized for "Harmony"

  • Chris did a great job on helping me help him with my first official client project and his first time leading a client project (I believe). He went above and beyond to try to give the client their "nice to haves". He was great to work with!
    - 08/23/2022 - Insight: Recognized for "Hunger"

  • For being awesome. For always being willing to help. For taking on difficult projects and excelling. For being considerate and wholesome.
    - 08/02/2022 - Insight: Recognized for "Heart"

  • A big thank you to Chris Caldarella for driving excellence in our engagement with [Supply Chain Company International], through applying rigor to his custom Python SDK development workstream, but -- more importantly -- remaining calm, prepared, and open with the customer in every interaction. This engagement has challenged our 10+ person team with the most ambiguity of all engagements I've experienced, and Chris has been a rock through rescoping, pivoting, and numerous ad-hoc requests. He's played a much bigger role in our success than he would ever let on. Glad you're on our team!
    - 04/29/2022 - Insight: Recognized for "Heart"


Interests

I enjoy spending quality time with my wife and son, and cooking up some delicious food.

I have a deep passion for learning especially about technology, and figuring out how things work.

In my free time, I enjoy reading and listening to audiobooks, especially on topics related to innovation and creativity.

Music has been a significant part of my life; I also used to play bass in a band in Denver, Colorado before moving to North Carolina and I also play guitar.

Currently I am learning to play drums and piano in my spare time.