David Callaghan Email & Phone Number
Founder and Principal Architect
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David Callaghan Location
- Ocala, FL, US
David Callaghan Work
- Founder and Principal Architect @ 2C Data (September 2026 - Present)
- Senior Solutions Architect @ (January 2026 - September 2026)
- Senior Solutions Architect @ (June 2017 - September 2026)
- Senior Solutions Architect @ (January 2025 - December 2025)
- Senior Solutions Architect @ (January 2024 - December 2024)
- Senior Solutions Architect @ (July 2023 - December 2023)
- Senior Solutions Architect @ (January 2023 - June 2023)
- Senior Solutions Architect @ (July 2022 - December 2022)
- Solutions Architect @ (January 2022 - June 2022)
- Solutions Architect @ (January 2021 - December 2021)
- Solutions Architect @ (January 2020 - December 2020)
- Solution Architect @ (January 2019 - December 2019)
- Senior Technical Lead @ (July 2018 - December 2018)
- Senior Technical Lead @ (January 2018 - June 2018)
- Technical Lead @ (June 2017 - December 2017)
- Hadoop and Spark Developer @ (February 2016 - May 2017)
- Bringing Big Data and Blockchain to the Cloud @ (May 2015 - May 2016)
- Big Data Developer @ (July 2014 - May 2015)
- Big Data Developer @ (February 2014 - July 2014)
- Architect and Senior Java Developer @ (March 2007 - March 2013)
- Senior Java Developer @ (June 2005 - January 2007)
- Senior C# Developer @ Li & Fung USA (June 2003 - May 2005)
- Senior Test Analyst @ (October 2002 - April 2003)
- Senior PHP Developer @ The Chiva Group (March 2001 - September 2002)
- Senior Java and PHP Developer @ (May 2000 - February 2001)
- VB Developer @ (May 1999 - April 2000)
- Delphi Developer @ (April 1998 - May 1999)
- VB Developer @ (May 1998 - April 1999)
- VB Developer @ Corporate Property Investors (March 1997 - March 1998)
- VB Developer @ (January 1997 - March 1997)
- Software Tester @ (May 1996 - December 1996)
- VB and COBOL Developer @ (February 1995 - March 1996)
- FoxPro Developer @ Broker Resource Center (July 1992 - December 1994)
David Callaghan Education
- Indiana University of Pennsylvania
David Callaghan Skills
- Scala in Spark
- Apache Spark
- PySpark
- Scala
- Databricks
- Snowflake
- Big Data
- Hadoop
- HBase
- Apache Pig
- Yarn
- Flume
- Falcon
- Java
- Apache Storm
- Apache Kafka
- MongoDB
- Oracle
- SOA
- Web Services
- Integration
- Business Intelligence
- XML
- Unix
- JavaScript
- Solution Architecture
- SQL
- Java Enterprise Edition
- Maven
- Databases
- MySQL
- JMS
- Spring Framework
- Android
- JSF
- Spring
- C#
- R
- Software Development
- Cassandra
- blockchain
- Hyperledger
- NoSQL
- Hive
- Business Analysis
- Microsoft SQL Server
- Agile Methodologies
- Intrusion Detection
- Leadership
- Technology
- Data Governance
- Support
- Management
- Strategy
David Callaghan Summary
- David Callaghan, based in Ocala, FL, US, is currently a Founder and Principal Architect at 2C Data. David Callaghan brings experience from previous roles at Perficient. David Callaghan holds a Indiana University of Pennsylvania. With a robust skill set that includes Scala in Spark, Apache Spark, PySpark, Scala, Databricks and more. David Callaghan has 1 emails and 2 mobile phone numbers on RocketReach.
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