System Architecture Developer in Sofia, Bulgaria

An Azure cloud-based SaaS solution automates the processes related to the readout and analysis of parameters stored in an airplane's flight recorder (black box). The system detects flight events that need investigation, prepares detailed flight reports, and provides contextual search capabilities, charts, and risk analysis.

The system uses a highly optimized algorithm for processing binary black-box files and extracting flight and parameter values from them. It also uses a highly customizable and reusable event-detection engine across aircraft manufacturers.

The architecture is based on a domain-drive design, event sourcing, business artifacts, and hypermedia-reach web APIs. It is deployed as an Azure web app and uses a multi-tenant active directory app to facilitate authentications against the client's Azure active directories.

An Azure cloud-based system developed for a client in the security-printing business that automates the whole ordering process, from product definition and contract signing to the actual shipment and delivery. I was involved in the system architecture and the development of the front end and back end. I worked closely with the client, designer, and developers to ensure that the requirements and workflows were accurately reflected on the design screens and in the system's business logic.

I was involved in business requirements refinement, architecture, and development of a tasks and inventory management system that consists of around ten microservices. The system integrates with a couple of other existing methods in the organization and is used by thousands of employees. It was built using Microsoft stack and Angular for the front-end.

A streaming service for the domestic market that could reach more than one million simultaneous users. The existing service had an outdated back end and experienced regular downtimes due to poorly designed back-end logic and caching. My role was to architect and implement a scalable approach to handle this load and at least five times more simultaneous users. The solution was to eventually synchronize the needed data in Elasticsearch and perform querying against Elastic. In some cases, we also took advantage of Redis Cache.

I developed the front and back end of the contact center web app, which utilizes Twilio services and ASP.NET/SignalR to provide a fully-featured web-based support solution with video, chat, and phone communication. The app was built with Angular 6 and Angular Material.

A mobile-first, responsive website based on ASP.NET Core, Angular 4 with server-side rendering and Bootstrap 3, and Sass files defined on component level. The website uses a webpack development build with hot module reloading and a seamless refresh of the website content and a web pack production build with all the content minified, optimized, and bundled.

A cloud-based SaaS solution that enables nonprofit organizations to track their progress and manage and organize a project's information throughout its lifecycle.

You can organize, tag, and search media content and collaborate on documents online through Office 365. It is deployed as multi-tenant Azure web app that authenticates against clients Azure active directories and enables single sign-on with clients Office 365

Architected and developed the software for a lotto's server core logic and web APIs for an online lotteries SaaS platform. The lotto server integrates with a back-office solution based on the Dynamics CRM, payment and affiliate systems, as well as the external systems for lottery ticket purchases.

2013 - Microsoft Certification

I co-authored a book on programming with the .NET framework. The ISBN: 954-775-672-9; 978-954-775-672-4 (Volume 2)

I wrote an algorithm and software for the readout aircraft flight data recorders. It was published in 2012 “Science” magazine which is run by the Bulgaria Scientist Union.