Brett Hlavinka

As part of a large IoT application revamp, our team needed to create a component that could read data from a third-party application and ingest it into our own system to share as needed. I designed and implemented the plugin, which leveraged an SDK to consume data via event triggers and re-format based on a configuration. It was written in C# using .NET Core. The solution was deployed across edge devices for many clients.

Feedback snippet from client: "You kept everything productive. In meetings, there would always be an 'At the end of this meeting, here is what I need answered/be done.'"

Conducted assessment, development, go-live, and support of a highly configured SharePoint Online environment to enable organized collaboration with a customer's clients.

I designed SharePoint architecture that allows safe external document collaboration with many clients, used OOTB SharePoint concepts to ease the solution's long-term feasibility, and configured consistent search across all sites for easy aggregation of documents. I wrote C# CSOM scripts to automate the creation of various sites within the hierarchy, wrote and deployed small CSOM client components to Azure, and configured the legacy SharePoint (2010) search and simplified user experience. The site creation scripts were queued into Azure Queue using a SharePoint front end. An Azure WebJob was deployed to consume the Queue functions and handle the appropriate site creation/alteration script.

Plugged into a team of eight developers to create new and maintain existing portions of the custom software suite, a highly complex system of dynamic schema, multiple mobile applications, and server components, all written in .NET.

I quickly ramped to support the highest priority items as team members were moving off the project, was trusted to positively impact all portions of the software suite with new functionality and bug fixes, and conducted spikes around performance improvement in a highly multi-threaded application. I shared findings via lunch-and-learn events, created a new source control process using best practices for developers to adapt, and helped to establish better morale as the development team was experiencing churn and a low point.

Feedback snippets from the team:

- "You brought a high degree of engagement into all discussions."
- "The impact that you have had on this team is stupendous."
- "You helped me understand how to properly work in a team of people and interact with stakeholders productively."
- "You served not only as an excellent development resource with deep technical skill, but you also helped as a role model to the rest of the team in scrum practices as well as overall productiveness."

Led a previously failed effort to abstract the shared functionality of many applications into a core API. Led a team to create lasting architecture that promotes the correct sharing of functionality across applications. The team has since created more than 100 microservices to promote code sharing.

I designed technical POCs given the requirements of abstracting shared functionality, architected microservice and containerization (Docker) approach, used Golang and .NET Core (C#) to write several microservice standards, and managed the team to create a few microservices and refactor applications to use the new API.

Inherited a small team mid-project and carried over the finish line. I worked on the solar installation mobile application, modified the architecture to better fit the use case of shared codebase with Xamarin and C#, and designed a complex area of online and offline with synchronization from mobile to the data center (Salesforce).

Took ownership of full codebase quality leading the team to create a highly shared, cross-platform codebase with over 80% code coverage in unit tests. I deployed a cross-platform mobile application to iOS, Android, and Windows Phone, architected a forms-based MVVM solution (with Xamarin, C#) for code sharing, and created complex graphing components with HTML, JavaScript, and CSS.

Created solution architecture for enterprise notification platform which allowed users to manage notification preferences and receive notifications via SMS and email. Applications used an API to publish notifications with various parameters. Then the notification platform would push notifications to various users. Applications could later retrieve notifications for users.

I managed a small team of four developers while also contributing significantly to the codebase. The core logic and API were written in C#, publish/subscribe implemented with RabbitMQ, a database created in SQL, and SMS integration performed via Twilio. Our team also did a POC of Kafka against RabbitMQ.