LinkedInDennis Cahillane

Dennis Cahillane

Software Engineer at SoundCloud

Berlin Area, Germany
Computer Software
  1. SoundCloud
  1. Avhana LLC,
  2. N/A,
  3. Pivotal Labs
  1. University of Chicago Law School
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Software Engineer, Test

– Present

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I like solving complex problems by building rock-solid software.

I have lots of professional experience using Agile and TDD. My clients have ranged from startups where I led a small development team and spoke daily to the CEO, to larger startups where I was part of an effective team, to Fortune 100 companies where I worked offsite on a skunkworks project. I am also a former sysadmin and I'm very comfortable at the Linux command line.

I have built web applications for clients using Ruby on Rails, Sinatra, PHP and a little Javascript, always deployed to a Linux cloud server.

My side interests include fitness, poker and language study.


Software Engineer, Test

– Present (6 months)Berlin Area, Germany

I work across development teams doing whatever needs to be done, especially related to testing.

Lead Software Developer

Avhana LLC
(4 months)

We built software that helps doctors treat patients effectively. The software takes an electronic medical record (multiple formats supported) and shows the doctor which standard treatments are recommended. Hospitals can also put their own custom recommendations into the software, which will be shown to doctors when they apply.

The company founders and I used agile methodology and rapid iteration to build a fully functional, HIPAA-compliant prototype. The founders used the prototype for demo day at our accelerator, DreamIt Health Baltimore.


(4 months)Brooklyn, NY

I left Pivotal to start my own company, but the only part of being an entrepreneur I liked was writing code. So I decided to go back to programming full-time.

Software Engineer

Pivotal Labs
(1 year 3 months)New York, NY

Agile, Test-Driven Development
Ruby on Rails (RSpec, Capybara, Cucumber)
Javascript (Jasmine)
Object-Oriented Programming


Gatsby Video
(4 months)Brooklyn, NY

I built this video playlist software to teach myself rails. It's on the free heroku tier so it takes a while to load, but once it does it is pretty useful!

Ruby on Rails
Youtube API

Tech Fellow

(4 months)New York, NY

I was an in-house full-time freelance web developer for Talking Points Memo for a 3 month project. I worked on the TPM Polltracker website, which was a huge success, correctly predicting the winner of all 50 states in the 2012 presidential election. Please see Josh Marshall's endorsement of my work further down this page.

View the site here:

Ruby, Sinatra

Legal Technology Consultant

Cahillane Legal Services
(4 months)New York City

I assisted attorneys with technology. Services included creating charts and graphs to summarize voluminous records, handling display in the courtroom during trial, and testifying in court as to their accuracy.


Software Developer / Co-Founder

Mom's Robot Co.
(6 months)New York City

We built a news aggregator to compete with sites like Google News, Reddit and Stumbleupon. After a few months of work, we decided to stop competing with Google and try something new.

Python, Django

Software Developer a.k.a. "Resident Hacker"

Digital Democracy
(6 months)New York, NY

Wrote software to track victims of sexual violence in Haiti
Worked with international partners in Haiti and Africa
Wore many hats in a small startup environment



Knobbe Martens Olson & Bear LLP
(1 year 5 months)Irvine, CA

Intellectual Property Litigation and Patent Prosecution

Computer System Administrator

Wittman Hydro Planning Associates
(3 years 2 months)Bloomington, Indiana Area

Maintained Linux and Windows computer servers--web, email, LDAP, IPSec, Samba, etc.
Maintained Linux and Windows desktop and laptop computers

Assistant Instructor - Computers

Indiana University Physics Dept.
(10 months)Bloomington, IN

Helped students use physics software to run experiments and do lab work. Also maintained a lab of OS X machines.


  1. German


  • Python
  • PHP
  • Linux
  • Java
  • jQuery
  • Ruby on Rails
  • SQL
  • Git
  • Agile Methodologies
  • Test Driven Development
  • JavaScript
  • PostgreSQL
  • Programming
  • Web Applications


University of Chicago Law School

J.D., Law

Worked for the U.S. Attorney's Office. Also worked for a housing clinic in Chicago, where I argued successfully in court that a client deserved a jury trial. Wrote briefs arguing for immigration law reform and marriage equality.

Activities and Societies: Clinic for the Legal Assistance Foundation of Metropolitan Chicago. Bridge Club

Indiana University Bloomington

B.S., Math, Physics

Conducted undergraduate research on quantum computers and Lorentz symmetry. Member of Honors College, UI STARS undergraduate research program, and IU Physics Research Experience for Undergraduates program. Derived magnetic field equation for non-symmetric magnetic quadropole.

Activities and Societies: Sigma Pi Sigma, One of only four students nominated by IU for Goldwater Fellowship (2003), IU Stars undergraduate research in quantum computation, Physics REU studying Lorentz symmetry (2004)


Hacker News username: SoftwarePatent

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