• @seankilleen
  • Technical Leader. Speaker. Teacher. MS MVP. Human.
  • he/him
  • Arlington, VA
Continually Improving.

  • Microsoft MVP
  • NUnit docs team lead
  • Technical Director / leader of teams
  • ScrumAlliance / ICAgile certified trainer
  • Blogger 
  • Streamer
Read more
Positions

Co-Owner

  • KilleenCode, LLC
  • Sep 2016 - Present

Principal Technical Fellow, Modern Software Delivery

  • Excella Consulting
  • Jan 2022 - Present

Technical Director

  • CapTech Consulting
  • Oct 2020 - Nov 2021

Managing Consultant / .NET Technical Lead / Trainer

  • Excella Consulting
  • Oct 2018 - Oct 2020

Managing Consultant / .NET Xpert

  • Excella Consulting
  • Jan 2018 - Oct 2018

Senior Consultant & .NET Xpert

  • Excella Consulting
  • Feb 2016 - Jan 2018

Senior Engineer

  • Costar Group
  • Aug 2014 - Nov 2015

Lead Developer

  • KCIC
  • Aug 2013 - Aug 2014

Systems Administrator / Developer

  • Johns Hopkins University Applied Physics Lab
  • Oct 2011 - Aug 2013

Support Specialist / Consultant

  • Dakota Consulting
  • Sep 2009 - Sep 2011

Sean's Collections

OSS Contributions

2 Highlights

Blog Posts

1 Highlight

Job Stuff

1 Highlight

2022

Jan 01, 2022
Jan 01, 2022
Started a new role at Excella Consulting
Excited to join Excella Consulting as Principal Technical Fellow, Modern Software Delivery! 🎉
Principal Technical Fellow, Modern Software Delivery, Excella Consulting

2021

Dec 19, 2021
Dec 19, 2021
Wrote a blog post
Wrote a Blog Post
Put out a quick blog post for C# Advent 2021:

"Ensuring Santa’s Success With Automated Tests"

https://seankilleen.com/2021/12/santa-sleigh/

Nov 22, 2021
Nov 22, 2021
Left a role at CapTech Consulting
Ended my journey as Technical Director at CapTech Consulting!

I'm excited to take the rest of November and all of December off, and to dive back into a new role come January.
Technical Director, CapTech Consulting
Oct 25, 2021
Oct 14, 2021
Aug 25, 2021
Aug 25, 2021
Used Terraform
Deployed to AWS
Improved development pipeline
+ 1
This felt good and is the culmination of a project so I wanted to share it:

Over the past 6 months, I went from "having used AWS a few times" to "creating, deploying, and owning the lifecycle for infrastructure across dev, QA, and Prod environments." I had to show a client team how to best use Terraform, and had to evolve and adapt the infrastructure many times along the way. I also created and evolved the CI pipeline across TeamCity and Octopus (client tools of choice).

AWS services deployed included:

  • Lambda functions
  • API Gateway
  • CloudFront for both API Gateway and S3
  • WAF
  • Secrets
  • CMKs
  • S3 Buckets
  • IAM Roles and Policies
  • Glue Jobs
  • RDS Aurora
This infrastructure passed the client team's many checks for resiliency and security to become their first AWS application deployed to production.
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