Vladyslav Sitalo

Building the new AWS service Control Plane from the ground up.

Design and build:

• Frontend and metadata services that map customers to compute nodes that would execute the customer requests
• Health monitoring and automated recovery infrastructure
• Deployment process for the system components

Focused on improving the resilience of the Redshift clusters to failure and on increasing their availability. As well as reducing the operational burden for our team.

• A variety of failure remediation automation which reduced the number of the required operator interventions by ~20%
• EC2 Instance Ops API platform that allows to easily define, deploy and execute commands on the fleet of machines. Based on AWS SSM Document Generator (see below).
• Framework to allow us easily define new APIs for testing in Redshift Canary that enables us to exercise Redshift public APIs
• Improved team's development infrastructure, by onboarding our services with the Docker-based development environment and with SonarQube continuous code quality platform. Also implemented Infrastructure as a Code solution to manage our AWS resources

• VahanaVR Youtube integration. This led to our product being recommended by Google as a primary live VR streaming solution for Youtube
• Algorithm execution workflow for the Orah4i stitching unit
• Mechanism to remember and reapply set of actions executed over the object to another object with the same interface in C++ to allow concurrent algorithm execution

Virtual Workplace was designed to transform Human-Computer interaction experience by introducing VR technologies into the traditional workplace. Users were able to interact with their applications of choice set into the immersive 3D environment using VR headsets and a gesture-based interface.

• Winner of Intel RealSense App Challenge 2014 idea stage.

• Developed a generic representation of system documents for Microsoft Dynamics AX 7.0 Rainier.
• Built the first version of relations browser for these documents.

KDE Simon is a tool that allows you to manipulate your desktop using voice commands.

• Rebuilt Simon to be able to support multiple backends for building acoustic and language models and for running voice recognition
• Introduced support for CMU SPHINX acoustic models and the recognition engine

Browser add-on that extends the functionality of RoamResearch (5k+ users).

Some noteworthy features:

• Spaced Repetition support
• VIM style navigation
• Natural language date interface
• A variety of shortcuts and UX enhancements

I've also built a variety of smaller tools around Roam - integrating with Asana, Goodreads, Anki, etc. You can find all of them on my GitHub page.

A plugin for the Anki Spaced Repetition Software. It enables you to collaborate on the creation of Anki Card Collections via services like Github.

A library and a DSL that allows you to easily create SSM documents and convert your Python or Bash programs into SSM documents (and optionally - CloudFormation templates, containing those documents).

The talk introduces various approaches for building Domain Specific Languages with the focus on Internal DSLs in Python.

A Kotlin library designed to improve an experience of developing Alexa skills on JVM. Kask can generate code based on your skill model, creating representations for the Intents and Slots in your model. It will also perform instantiation of those classes for an incoming request. So your model is expressed explicitly in the code and you don't have to handle it's recreation from incoming request yourself. The library also provides a concise functional way to implement your request and intent handlers.

Pomodoro productivity technique functionality for the Toggl Button time tracking browser extension.