Lawrence Krubner


Over the last 19 years I have been the technical co-founder at 3 different startups.

Contact me at :

or at: 434 825 7694


Business advice:


Code theory:






My history:

I’ve consulted with more clients that I can list, so this is just a sampling of what I’ve done:


SmashCompany / 2009 to now – (New York City)

I work with a broad set of technologies, including PHP, NodeJS, Python, Ruby, PHP, Apex, Java and Clojure, and databases such as MySQL, PostGreSQL, Redis, ElasticSearch and MongoDB. I bring the perspective of someone who has been both an entrepreneur and a software developer. Having grown businesses from scratch, I have some experience with every aspect of development: marketing, design, technology, sales and raising funds.


I’ve recently helped these clients:


I built the Salesforce app which allows to sell it’s data as a direct import to Salesforce. Code Foundary’s Universal Relay Boilerplate. We adapted the CodeFoundries project to our own needs. I switched the Cassandra code to MongoDB so we could work with pure JSON.


Using Natural Language Processing to understand the text messages that salespeople type on their phones, Rollio transforms the texts from human languages to computer languages, and then makes use of the Salesforce API to update the Opportunities, Contacts and Accounts of each salesperson. Relying on Clojure and Java, and making use of the Stanford Natural Language Processing open source libraries, we built a system of microservices that can process a vast number of simultaneous conversations.


Helped build out their Python framework, which derived ideas from Flask. Attempted to reinvent the whole web eco-system for Python, with new security modules, validation modules, and serialization modules.

. was an early stage startup which built a proof-of-concept for the future of education software – a 2nd generation platform which integrated the scattered pieces of the 1st generation. The technology stack was polyglot. Working with Java, Ruby and Clojure, we built out the essential pieces of a micro-services stack, which both imported data from multiple LMS and SIS packages (for instance, Moodle and OpenSIS), integrated the data into a unified dataset, and then made it available via a RESTful architecture serving JSON. The frontend was pure Javascript, built with Angular.js. This software will transform the relationship between teachers, students and parents, by allowing a unified interface that draws together the disparate software packages currently in use in K-12 schools across the nation. The proof-of-concept was completed after 6 intense months of work.

. / December 2012 to November 2013 – (New York City)
They got 100 million page views each month. However, Timeout had spent years building a bloated and inconsistent mix of technologies, and they were now faced with performance issues that left them crippled. They were losing market share to a company from Brazil that was selling a competing publishing system. A new architecture was necessary. I educated the team regarding the idea of “an architecture of small apps” which was similar to microservices. You can read my summary of our internal debate here:

. / April 2011 to April 2012 – (New York City)
Their newsletter had 3 million subscribers, and every aspect was being handled with technology that had been developed internally, using a chaotic and inconsistent mix of technologies, the core of which was a bloated framework that had initially been built with the CakePHP framework. There were many background tasks that were run with cron scripts. We rebuilt everything as 6 clean Ruby apps, some using Rails and some using Sinatra.


M Shanken Communications / April 2010 to April 2011 – (New York City)
A rescue mission. The company had decided to switch to the Symfony framework, but they had no one on staff who knew it well. As I was a Symfony expert, I was brought in to educate the tech team. I helped them rebuild the and websites, converting them from Oracle/Vignette systems to MySql/Symfony.


TeamLaLaLa / 2008 -2010 – (Charlottesville, Virginia)
The designer Laura Denyes and I teamed up to create a design firm which handled both print and digital clients. We oversaw the writers, videographers, Flash programmers, PHP programmers, graphic designers and project managers. This was a $250,000 effort to build an online social network that would offer a safe space to those recovering from alcoholism and drug addiction.


Bluewall / 2002 – 2008 – (Charlottesville, Virginia)
My co-founder Peter Agelasto and I raised $2 million to commercialize my software. I ran a team of 8, which included programmers, designers, and QA. We built niche communities around online video stores. was an immediate success, and it remains successful to this day. The company has since rebranded as ReLab


1999 – 2002 – Developed software for managing websites, using PHP and MySQL. Had dozens of clients, mostly in the media profession.


November 12, 2018 9:44 pm

From Roberto on Poland was shockingly liberal during the 1400s

"Also check out Laurentius Goslicius:ła_Goślicki Richard Cal..."

November 7, 2018 6:04 pm

From Henry Longmore on Why not use asserts in Python?

"Thanks for the article. I used to mock Eiffel for its "Design By Contract" as that seemed to be the only good ..."

November 5, 2018 7:51 pm

From lawrence on Zed Shaw is angry (abstraction and indirection)

"Cat Mara, that is a very good point. Even if some of the previous attempts were badly done, if someone claims ..."