About Jonathan
I am a full stack .NET and web developer with a proven track record of solving complex problems and teasing out comprehensive requirements for software needs.
Originally involved in the consulting world with a Microsoft partner, I prefer to have knowledge and contact with a customer to best help them leverage technology to solve problems effectively, and with maximum ROI.
My biggest strengths are my ability to communicate well with key stakeholders and build consensus toward a technological solution to a problem.
Skills
C# 8.5/10Skills & Services
Api Design
Whether you need to create or consume APIs, the middle tier is one of my greatest strengths. I have a lot of experience with .NET Web Api.
Web Development
Plentiful experience leveraging .NET and .NET Core to build data driven web applications. JQuery, VueJS, and Angular for front end frameworks
Cloud Architecture
Specializing in Azure PAAS, I'm familiar with the design and networking required to build modern web apps on cloud technology
SQL DBA/Design
SQL Server admin and table relationship design, as well as stored procedures, other functions, and tweaking query performance.
DevOps
Highly skilled with visualstudio.com and Azure for hosting code repositories, implememting CI/CD, and highly experienced with PAAS.
Debug/Problem Solving
I excel at debugging issues and solving problems and performance tuning database and/or web applications.
Resume
Summary
Jonathan Osterbrock
Full Stack .NET Developer with 10+ years consulting and building quality web based applications.
- Littleton, CO
- (303) 250-5917
- josterbrock@gmail.com
Education
Bachelor of Sciences in Business Administration - Information Systems
2003-2005
University of Colorado at Boulder
2001 - 2003
Lehigh University, Bethlehem, PA
Professional Experience
FREELANCE CONSULTING
2024
Littleton, CO
- Built double entry accounting system for financial services company.
Solutions Developer Lead
2018 - Present
Arapahoe County Government, Littleton, CO
- Lead Developer for a cloud based, multi-tenant Human Services application which has resulted in hundreds of thousands of dollars in savings annually. Many Colorado counties currently pay Arapahoe County to use this software, with additional counties having immediate plans to adopt it. Technologies used include C#, ASP.NET MVC, ASP.NET WebAPI, T-SQL, Azure CosmosDB, jQuery, Bootstrap, Azure Service Bus, and Azure Active Directory.
- Lead Developer on Budget Development System and reporting for Arapahoe County Finance Department
- Designed and developed .NET web applications, REST APIs, and data warehousing solutions using C#, .NET Core, SQL Server, SSIS, ASP.NET MVC, and front-end frameworks like Bootstrap, JQuery and AngularJS.
- Proficient using dependency injection, unit testing/Moq, Dapper, Entity Framework, TFS/Git.
- Agile methodology
- Built continuous integration process and set up builds for active projects using Visual Studio Team Services online (GIT).
- Aid development team by architecting solutions and reviewing code and database designs to meet standards.
- Screened candidates and developed skills tests used to aid in evaluating developer candidates
Senior Solutions Developer
2014 - 2018
Arapahoe County Government, Littleton, CO
- Built a variety of .NET based solutions to serve the county's many service partners
- Used Microsoft Graph API to automate the onboarding of new county employees into Active Directory and O365.
- Built data warehousing and search index solutions for human services using SSIS, SQL Server, and Elastic Search
BI & WEB DEVELOPMENT CONSULTANT
2012 - 2014
Uncommon Solutions Inc, Greenwood Village, CO
- Architect/Lead for Business Intelligence implementations leveraging the Microsoft stack.
- Developed budget for commercial mortgage brokerage.
- Highly skilled with SSRS, SSIS, and SSAS (Multidimensional and Tabular models).
- Developed and maintained web apps using .NET MVC 4/JQuery and Entity Framework. Proficient in C# and VB.
- BI and reporting experience across multiple verticals: Mortgage/Finance, Ticketing/Billing, Supply Chain/Warehousing, Fiber Optic Infrastructure, etc.