Mark Feller

About Me

I am a passionate back-end and systems engineer with 4+ years of professional experience. An easy-going person whose seriousness is reflected in code and tooling. I have a deep interest in the bridge between punching code into your favorite editor and seeing real business value derived from it.

Recent Accomplishments

Played a major role in wrangling our microservice testing nightmare

Our microservice based system had an extremely complex test suite where tests were often non-deterministic, tests were easy to write but very hard to debug, and we were often mislead by successful tests who gave us false confidence and allowed us to ship bugs frequently.

Spearheaded a major simplification of our microservice coding standards

Previously our microservices had been built in a hand rolled, do it all, microservice framework. The framework paradoxically made services harder to write, more fragile, and less uniform due to ever-changing boiler plate generators. My focus was a back to basics, \textsc{kiss}, style of coding with an emphasis on standard libraries, fewer arbitrary imports, and reusable, single purpose, libraries for when the ecosystem did not already provide a high fidelity alternative.

Experience

2018-present
Engineer - Redeam
2016-2018
Staff Consultant - T4S Partners
2015-2016
Associate Technical Consultant - CSC
2014-2015
Kinect Developer - CSU Mathematics Department
2014-2015
Web Developer - CSU Mathematics Department

Skills

Laguages Golang, Python, Rust, JavaScript, Lisp
Platforms Docker, Kubernetes, Google Cloud
Frameworks gRPC, Echo, Swagger, AngularJS
Editors Emacs, Vim, Acme
Tools Git, Helm, Vagrant, Make, \LaTeX
Environments Linux (GCE, CentOS, Fedora), macOS, OpenBSD

Education

Spring 2015
Bachelor of Science in Mathematics
Colorado State University - Fort Collins
Spring 2011
High School Diploma
Colorado Springs Early Colleges - Colorado Springs