James Mattern

James Mattern Email and Phone Number

Data Engineer @ DraftKings Inc.
Dallas, TX, US
James Mattern's Location
Dallas, Texas, United States, United States
James Mattern's Contact Details

James Mattern work email

James Mattern personal email

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About James Mattern

Data Engineer with extensive experience in PySpark streaming, creating infrastructure as code to provision Azure resources, and designing and developing ETL pipelines using Azure Data Factory and Databricks. Skilled in leveraging cloud-based technologies to optimize data processing and storage, with a focus on scalability, reliability and efficiency. Proven ability to work in fast-paced, agile environments and collaborate with cross-functional teams to drive data-driven decision making.

James Mattern's Current Company Details
DraftKings Inc.

Draftkings Inc.

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Data Engineer
Dallas, TX, US
James Mattern Work Experience Details
  • Draftkings Inc.
    Data Engineer
    Draftkings Inc.
    Dallas, Tx, Us
  • Casey'S
    Data Platform Engineer
    Casey'S Mar 2022 - Present
    Ankeny, Iowa, Us
    • Design end to end data pipelines using Azure Data Factory, Databricks, and Synapse• Create Continuous Integration(CI)/Continuous Deployment(CD) pipelines in Azure DevOps for code check-in and deployment • Provision Azure cloud architecture and Databricks clusters/jobs for Dev, DR, and Prod environments using Infrastructure as Code (Terraform)• Supported data migration from on-prem servers to Azure cloud• Configure APIs with 3rd party data sources and maintain daily data imports and exports• Evaluate source data systems and understand how to extract and model the data using data warehousing concepts
  • Koch Ag & Energy Solutions, Llc
    Data Engineer
    Koch Ag & Energy Solutions, Llc Jan 2020 - Mar 2022
    Wichita, Kansas, Us
    • Developed and constructed scalable ETL packages and data models using Matillion and AWS Glue whichprocessed ~30 million accounting transactions yearly• Ensured data quality by creating custom Datadog monitors on ETL jobs and created customizeddashboards for real time data pipeline monitoring• Created ML daily cash forecasting model for all receivable invoices to increase daily accuracy by ~25%• Identified and recommended ways to improve data reliability, efficiency, quality, reporting, and security• Identified, troubleshooted, and resolved dataset and data model challenges• Lead daily meetings with 3rd party consulting team• Created live dashboards in Tableau with KPI metrics for data reporting• Created standard work and best practices documentation for data models to ensure reproducibility andrepeatability of data design and architecture
  • Principal Financial Group
    Quantitative Scientist And Operations Research Intern
    Principal Financial Group May 2019 - Aug 2019
    Des Moines, Iowa, Us
    • Transformed large semi-structured data sets using Matillion ETL, SQL and Python code• Designed and developed a data pipeline and maintained data quality to support the data migration from PostgreSQL database to Snowflake• Created robust data visualization tools and dashboards for portfolio managers using Power BI• Produced standard work instructions and taught a class to data science team on Matillion ETL
  • Summit Products
    Industrial Engineering Intern
    Summit Products Aug 2018 - Nov 2018
    • Identified cost saving initiatives related to optimization of packing materials, labor, and storage to save over $30,000 annually• Created a bill of materials for packaging operations• Established standardized work instructions for packaging operations to decrease costs, lead times, and waste
  • Principal Financial Group
    Undergraduate Research Assistant
    Principal Financial Group Jan 2018 - May 2018
    Des Moines, Iowa, Us
    • Created process maps and standard work instructions to shorten production cycles and reduce time to market• Identified areas of overlap in the production process to increase accuracy and reduce errors• Streamlined processes and created controls to increase efficiency of current processes
  • Winnebago Industries
    Industrial Engineering Co-Op
    Winnebago Industries May 2017 - Dec 2017
    • Collaborated with consultants to save $160,000 annually by reducing inventory and eliminating waste • Integrated innovative station design for a new manufacturing supermarket and implemented 5S tools and Six Sigma projects• Created standard operating work instructions and aided quality, safety, and manufacturing engineers in implementing new products• Audited current production time standards and identified bottleneck workstations

James Mattern Skills

Data Pipelines R Data Warehousing Amazon Web Services Operations Research Simulation Modeling Data Engineering 5s Data Analytics Snowflake Tableau Alteryx Amazon Redshift Java Work Instructions Big Data Business Process Improvement Sql Python Supply Chain Operations Process Engineering Amazon S3 Microsoft Power Bi

James Mattern Education Details

  • Iowa State University
    Iowa State University
    Industrial Engineering

Frequently Asked Questions about James Mattern

What company does James Mattern work for?

James Mattern works for Draftkings Inc.

What is James Mattern's role at the current company?

James Mattern's current role is Data Engineer.

What is James Mattern's email address?

James Mattern's email address is ja****@****eys.com

What schools did James Mattern attend?

James Mattern attended Iowa State University.

What skills is James Mattern known for?

James Mattern has skills like Data Pipelines, R, Data Warehousing, Amazon Web Services, Operations Research, Simulation Modeling, Data Engineering, 5s, Data Analytics, Snowflake, Tableau, Alteryx.

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