David Eisinger

VP of Development

The Iceman. David's parents met at IBM and he's been using (and breaking) computers since before he could walk. After studying computer science at TJHSST and Duke University, he's been at Viget since 2008, where he leads technical engagements with some of our biggest clients.

David strives to deliver high quality, forward-thinking software on time and budget. His primary interests include database design, functional programming, distributed architectures, and being right almost exclusively.

David's Insights

News & Culture
StackStash: Taking Bookish Musings to the Next Level
Code
Maintenance Matters: Good Tests
News & Culture
What’s in a Word? Building a Verbose Party Game
Code
Simple Commit Linting for Issue Number in GitHub Actions
Code
Maintenance Matters: Continuous Integration
Code
Pandoc: A Tool I Use and Like
Code
Local Docker Best Practices
Code
Extract Embedded Text from PDFs with Poppler in Ruby
Code
Five Turbo Lessons I Learned the Hard Way
Code
Let’s Make a Hash Chain in SQLite
Code
“Friends” (Undirected Graph Connections) in Rails
Code
Making an Email-Powered E-Paper Picture Frame
Code
Email Photos to an S3 Bucket with AWS Lambda (with Cropping, in Ruby)
Code
Let’s Write a Dang ElasticSearch Plugin
Code
Why I Still Like Ruby (and a Few Things I Don’t Like)
Code
Things About Which The Viget Devs Are Excited (May 2020 Edition)
Code
Testing Solr and Sunspot (locally and on CircleCI)
Code
The Right Way to Store and Serve Dragonfly Thumbnails
Code
The Little Schemer Will Expand/Blow Your Mind
Code
JSON Feed Is Cool (+ a Simple Tool to Create Your Own)
Code
Using Microcosm Presenters to Manage Complex Features
Code
Get Lazy with Custom Enumerators
Code
Functional Programming in Ruby with Contracts
Code
Romanize: Another Programming Puzzle
Code
OTP: a Functional Approach (or Three)
Code
OTP: a Language-Agnostic Programming Challenge
Code
Adding a NOT NULL Column to an Existing Table
Code
Required Fields Should Be Marked NOT NULL
Code
Use .pluck If You Only Need a Subset of Model Attributes
Code
First-Class Failure
Code
Diving into Go: A Five-Week Intro
Code
“What’s new since the last deploy?”
Code
Write You a Parser for Fun and Win
Code
Level Up Your Shell Game
Code
AWS OpsWorks: Lessons Learned
Code
Simple, Secure File Transmission
Code
Simple App Stats with StatBoard
Code
Large Images in Rails
Code
Manual Cropping with Paperclip
Code
Three Magical Git Aliases
News & Culture
New Pointless Project: OfficeGames
Code
The Balanced Developer
Code
Regular Expressions in MySQL
Code
Testing Your Code’s Text
Code
PUMA on Redis
Code
On Confidence and Real-Time Strategy Games
Code
Rails Admin Interface Generators
Code
Convert a Ruby Method to a Lambda
Code
Static Asset Packaging for Rails 3 on Heroku
News & Culture
New Pointless Project: I Dig Durham
Code
Getting into Open Source
Code
Practical Uses of Ruby Blocks
Code
Social Media API Gotchas
Code
CoffeeScript for Ruby Friends
Code
DevNation Coming to San Francisco
Code
Around "Hello World" in 30 Days
Code
Gifts For Your Nerd
Code
HTML Sanitization In Rails That Actually Works
News & Culture
Refresh Recap: The Future of Data
Code
Viget Devs Storm Chicago
Code
Single-Use jQuery Plugins
Code
Simple APIs using SerializeWithOptions
Code
How (& Why) to Run Autotest on your Mac
Code
Unfuddle User Feedback
Code
Backup your Database in Git
Code
Shoulda Macros with Blocks
Code
Out, Damned Tabs
Code
Stop Pissing Off Your Designers
Code
Sessions on PCs and Macs
Code
Getting (And Staying) Motivated to Code
Code
Multi-line Memoization
Code
Protip: TimeWithZone, All The Time
Code
Introducing: EmailLabsClient
Code
RubyInline in Shared Rails Environments
News & Culture
Refresh 006: Dr. jQuery
Code
cURL and Your Rails 2 App

David Eisinger

David's Insights

StackStash: Taking Bookish Musings to the Next Level

Maintenance Matters: Good Tests

What’s in a Word? Building a Verbose Party Game

Simple Commit Linting for Issue Number in GitHub Actions

Maintenance Matters: Continuous Integration

Pandoc: A Tool I Use and Like

Local Docker Best Practices

Extract Embedded Text from PDFs with Poppler in Ruby

Five Turbo Lessons I Learned the Hard Way

Let’s Make a Hash Chain in SQLite

“Friends” (Undirected Graph Connections) in Rails

Making an Email-Powered E-Paper Picture Frame

Email Photos to an S3 Bucket with AWS Lambda (with Cropping, in Ruby)

Let’s Write a Dang ElasticSearch Plugin

Why I Still Like Ruby (and a Few Things I Don’t Like)

Things About Which The Viget Devs Are Excited (May 2020 Edition)

Testing Solr and Sunspot (locally and on CircleCI)

The Right Way to Store and Serve Dragonfly Thumbnails

The Little Schemer Will Expand/Blow Your Mind

JSON Feed Is Cool (+ a Simple Tool to Create Your Own)

Using Microcosm Presenters to Manage Complex Features

Get Lazy with Custom Enumerators

Functional Programming in Ruby with Contracts

Romanize: Another Programming Puzzle

OTP: a Functional Approach (or Three)

OTP: a Language-Agnostic Programming Challenge

Adding a NOT NULL Column to an Existing Table

Required Fields Should Be Marked NOT NULL

Use .pluck If You Only Need a Subset of Model Attributes

First-Class Failure

Diving into Go: A Five-Week Intro

“What’s new since the last deploy?”

Write You a Parser for Fun and Win

Level Up Your Shell Game

AWS OpsWorks: Lessons Learned

Simple, Secure File Transmission

Simple App Stats with StatBoard

Large Images in Rails

Manual Cropping with Paperclip

Three Magical Git Aliases

New Pointless Project: OfficeGames

The Balanced Developer

Regular Expressions in MySQL

Testing Your Code’s Text

PUMA on Redis

On Confidence and Real-Time Strategy Games

Rails Admin Interface Generators

Convert a Ruby Method to a Lambda

Static Asset Packaging for Rails 3 on Heroku

New Pointless Project: I Dig Durham

Getting into Open Source

Practical Uses of Ruby Blocks

Social Media API Gotchas

CoffeeScript for Ruby Friends

DevNation Coming to San Francisco

Around "Hello World" in 30 Days

Gifts For Your Nerd

HTML Sanitization In Rails That Actually Works

Refresh Recap: The Future of Data

Viget Devs Storm Chicago

Single-Use jQuery Plugins

Simple APIs using SerializeWithOptions

How (& Why) to Run Autotest on your Mac

Unfuddle User Feedback

Backup your Database in Git

Shoulda Macros with Blocks

Out, Damned Tabs

Stop Pissing Off Your Designers

Sessions on PCs and Macs

Getting (And Staying) Motivated to Code

Multi-line Memoization

Protip: TimeWithZone, All The Time

Introducing: EmailLabsClient

RubyInline in Shared Rails Environments

Refresh 006: Dr. jQuery

cURL and Your Rails 2 App