Kosta Hristov

Hands-on Technical Director and Software Architect scaling a bootstrapped SaaS company from zero to $2,000,000 annual revenue and 40+ employees. Created the cloud and software architecture behind QGP 3.0 and led engineering, design, quality, support, delivery, and enterprise/client collaboration.

Directed operations for a premium web design agency, growing the business from the ground up to a team of 6. Led design operations, oversaw web development processes and cross-team coordination, and handled hosting/email infrastructure plus WordPress and WooCommerce administration.

Consulted and led a core team supporting a cloud-based insurance software platform, handling complex front- and back-end feature development, maintenance, and modernization discussions. Managed requirements gathering with clients and led technical presentations while supporting cloud hosting and deployment activities.

Worked as a full-stack engineer and consultant on a cross-device ad retargeting web platform, including Single Page Application development. Built and maintained features using client-side JavaScript tooling and server-side .NET (MVC/Web API) plus SQL-based data access in an Agile/Scrum workflow.

Developed a complex network inventory and management web platform requiring integrations with operating systems and network technologies. Delivered features and maintenance using JavaScript front-end technologies, .NET server-side components, and SQL/Entity Framework within Agile/Scrum.

Developed a complex web platform and mobile application using Microsoft and open-standard technologies. Contributed to features and automation testing (including TDD/unit/integration), and supported clients through Agile/Scrum ceremonies while also lecturing and writing a company blog.

Built features for an Object-Relational Mapper (ORM) framework and related tools using Microsoft technologies. Performed automation testing (unit testing/TDD) and supported client collaboration within Agile/Scrum routines.

Developed mobile applications for Android, BlackBerry, and J2ME along with server functionality, covering the full development lifecycle. Worked with platforms including Java/C++ toolchains and Oracle-based components, while communicating extensively with clients.

Developed and supported one of Europe’s largest e-commerce platforms, handling development tasks, bug fixing, and automation testing. Used Java EE technologies (JSP/JSF/Servlets), Oracle SQL/PL-SQL, and Java testing with JUnit.

Developed a desktop application for network device management and observation covering the full development cycle. Implemented components using C++ and Qt and worked with networking protocols including SNMP and TCP/IP.

Bachelor’s degree in Software Engineering & Network Technologies, covering core topics such as software engineering, algorithms, web development, databases, security, and network operations.