in reverse chronological order

GSI Commerce, King of Prussia, PA; Senior Software Developer/Tech Lead

Health Market Science, King of Prussia, PA; Senior Software Developer

Gestalt LLC, Camden NJ; contract

Wellfound Technology Inc, Marietta GA; Senior Architect/Consultant

TIBCO Software Inc, InConcert division, Cambridge MA; Senior Architect

Mercator Software, Burlington MA; contract

Parametric Technology Corp, Waltham MA; contract

InConcert Inc, Cambridge MA; contract

Fidelity Investments, Boston MA; Technical Advisor, Manager of Ad Hoc Programming

Symmetrix, Lexington MA; Associate

General Electric Aircraft Engines, Lynn MA; contract

BBN Communications Corp, Cambridge MA; contract

Strawberry Software, Watertown MA; Software Engineer

Keithley Instruments Data Acquisition & Control, Boston MA; Software Engineer

THINK Technologies, Lexington MA; Software Engineer

aws-misc

An assortment of AWS-specific examples and tools. Mostly written in Python.

log4j-aws-appenders

Appenders for Log4J 1.x, Log4J 2.x, and Logback that support writing to multiple AWS destinations. An alternative to Logstash or the Amazon logging agents, particularly when feeding the logs into ElasticSearch.

KDG Commons

Yet another library of utility classes, in the mold of Apache Commons. Created because I found myself rewriting the same classes over and over, and the adoption delay for submissions to Apache Commons is quite long (although one of my classes did end up there).

Practical XML

Utility classes to enhance Java's default XML library. In addition to simple utility methods like “add a child and inherit parent's namespace,” provides a nice XPath wrapper and a library to convert between XML and a variety of other formats.

Aggregating CloudTrail Log Files: a pipeline to optimize data lake performance

Greater Philadelphia AWS User Group, February 8, 2024

Let's Get Physical: optimizing performance of Redshift and Athena

Greater Philadelphia AWS User Group, June 28, 2023

Mitigating Log4Shell and friends with AWS

Philadelphia Java Users Group, April 12, 2022

Greater Philadelphia AWS User Group, April 21, 2022

Observability and You

Emerging Technologies for the Enterprise Conference, May 6, 2021

Follow the CloudTrail

Greater Philadelphia AWS User Group, July 22, 2021

Philly DevOps Meetup, Februrary 16, 2021

Accounts as a Service: Why we have 50+ AWS accounts, and why you should too

Emerging Technologies for the Enterprise Conference, April 14, 2020

Infrastructure Tools Comparison: Terraform, CloudFormation, and CDK

Lehigh Valley AWS User Group, February 12, 2020
Greater Philadelphia AWS User Group, June 18, 2020

So You Want to Migrate to AWS…

Emerging Technologies for the Enterprise Conference, April 23, 2019

Building a Logging Pipeline on AWS

Philadelphia Java User's Group, June 14, 2018
Greater Philadelphia AWS User Group, March 28, 2019
Lehigh Valley AWS User Group, June 12, 2019

AWS Messaging Solutions

Greater Philadelphia AWS User Group, July 11, 2018

Serverless Applications in Java

Philadelphia Java User's Group, May 17, 2017

Cognito?

Greater Philadelphia AWS User Group, April 26, 2017

JVM Internals

Philadelphia Java User's Group, March 26, 2014

Taming Maven

Philadelphia Java User's Group, November 14, 2012

Byte Buffers and Off-heap Memory

Philadelphia Java User's Group, November 9, 2010

Code Coverage

Philadelphia Java User's Group, October 14, 2009

Java Reference Objects

Philadelphia Java User's Group, December 12, 2007