Ben Sima

I create technical solutions to complex business problems.

Hi! I’m a software engineer currently located in San Diego.

By trade, I work on applications that deal with a lot of data; by vocation I study mathematics and philosophy. My studies have specifically trained my mind for:

I have experience in application architecture, databases, and other data-heavy systems. If your business can appreciate any of the above, then email

You probably also want to check out my projects page.


Software Engineer, Liaison Technologies

2015 - present

I designed and implemented a distributed, streaming, immutable, event-sourced cloud database for semi-structured enterprise data, plus a few AI-based microservices for extracting structured intel out of the semi-structured streams of data in our database. The business goal is to flexibly extract intelligible data from customers’ data banks. Everything is done in Clojure, on a private cloud infrastructure with Docker containers as deployable microservices. Read more here.

Software Engineer, Thermo Fisher


I wrote services and UIs for creating and running hardware tests on all of Thermo Fisher’s equipment. The application allowed field technicians to collaborate on custom diagnostic tests for each instrument, connect to any instrument on the network, run tests remotely or on-site, etc. The end product is deployed as a Docker container onto mostly Windows machines used by Thermo Fisher technicians. Tech stack: Typescript UI, Python backend, CouchDB datastore.

Software Engineer,


As a full-stack developer, I was responsible for the DevOps workflow on AWS and legacy servers, setting up and doing deployments, diagnosing and fixing bugs, managing a git workflow between in-office and remote developers, and coding new features on both the frontend and backend.

Lead Developer, Nebula Bio

2014 - 2016

With a biomedical engineer partner, I developed an open source, low cost, portable blood analysis platform. Our goal was to be the “Arduino of biotech”. All development was done on GitHub. Unfortunately the project was cut short because protein reagents are expensive and I was a college student.

Instructor, Thinkful

2014 - 2015

Taught data science and full-stack web development with Python to new and intermediate students. I also helped develop their curriculum by writing tutorials and exercises for each of the courses I taught.

Nebula Sports

2012 - 2013

An RIT sponsored startup project that lasted for about a year, in which we developed novel headgear padding for athletes. My main role was in guiding the scientific research, while solely managing the fundraising (grants and private investment). In a 4-person team, we developed an algorithm for optimizing our custom padding to a specific position within a specific sport. Patent concerns made us shut down this part of the project. We then prototyped and programmed an accelerometer to be housed inside a helmet and signal to the athlete the severity of an impact. Reebok released their CheckLight product before we finished developing, and so scooped the market. All algorithm programming was done in Matlab.

Freelance Developer

2012 - 2014

As a freelance developer, I created two ecommerce systems in PHP, a ClojureScript front-end website to be used as a landing page, and worked on an e-magazine site for a local Rochester magazine.