Technology stack: AWS, Serverless, IaC, Node.js, PostgreSQL, Git, Linux

• Development of a prototype client/server workflow system for project management• Requirements gathering, designing, developing and publishing of custom mobile applications• Realization of a client/server application used for cooking recipe creation and managementTechnology stack: AWS, GCP, Node.js, Flutter, MongoDB, MySQL, Git, Linux, Docker• Development of Web-based project management system. Built with proprietary MVC framework the application has multilingual user interface, supports multiple currencies and budgets. Green software compliant system with ability to import/export documents from/to different file formats. The application is offered as “Software as a Service” turn-key solution for engineering, construction and project management companies.• Planned, developed, tested and deployed a fully working penny auctions website. Setup the server, installed all necessary modules including SSL certificate and secured the application.• Development and implementation of Web-based attestation application. The application is used for personnel/staff evaluation.Technology stack: PHP, Ajax, JavaScript, MySQL, XSLT, XML, Git, Linux

• IoT Microservices• IoT devices simulation• MVP version developmentTechnology stack: Microsoft Azure, Node.js, Kubernetes, Git, Linux

• As part of the core backend team created, improved and delivered a unique product used within the company. Our backend supports many of our games, it's rock solid and heavily tested in production, serving millions of users daily.• Design and implementation of RESTful APIs, new features and functionalities• Conduct infrastructure load tests and optimizations (AWS) – Tsung, Apache JMeter, Artillery• Machine learning techniques, investigation and customer churn prediction• Improve the code base, tooling, documentation and coding practices• Helping the team resolve technical issues for achieving goals• Act as a mentor for new and junior developers• Took part in the development of the following game titles:- Dead by Daylight- Assassin's Creed Rebellion- Ellen's Road to Riches Slots- WestworldTechnology stack: AWS, GCP, Node.js, MySQL, Elasticsearch, RabbitMQ, Git, Linux, Docker, Tsung

• As a backend developer created the initial backend the company has used for a long time• Took part in the development of various game titles:- Blockolicious (Chillingo)- Bruce Lee: Enter the game- Calling All Mixels (Cartoon Network)- Cupcake Carnival (DeNA)- Hum a song (Hibernum)- Jevel Quest (iWin)- Magic: The Gathering - Puzzle Quest- Puzzle Chasers (Konami)- Saber's Edge (Amazon / Hibernum)- Studio Empire (Warner Bros)- Ubersim (Uber)- Viva Vegas (Deepsilver / Fishlabs)- Zootopia (Disney)• Worked on the following components:- Achievement system- Analytic system- Authentication system- Events system- Inventory system- Leaderboard system- Matchmaking system- Messenger system• Deployment procedures• Integration of third party libraries• Payment gateways• Production servers setup and database clusters creation• R&D projects• Simulations and stress tests /Apache JMeter, AS3/• Unit / Integration testing scriptsTechnology stack: AWS, Node.js, Riak, PostgreSQL, MySQL, Git, Linux, Docker, JMeter

• Led a team of developers. Took care of releases, analysed and documented projects requirements and acted as a mentor for new/junior developers. Development and implementation of custom-built Web-based applications. Participated in the whole process of development and realization of the projects.• Maintained Internal ERP application, managing all aspects of company's business, including data and documents flow, internal events scheduling and projects stages statistics.• Maintained custom-built Flash players, invoices/reports specific components and RSS/XML feeds generation procedures.Technology stack: PHP, Flex, Ajax, MySQL, JavaScript, RSS, XSLT, XML, Git, Linux

• Realization of client – server modules used in game development industry.• Development of Web-based frontend application allowed the game administrator to manage pools of players.• Development of MySQL server side application under Linux.Technology stack: Microsoft Visual C++, GNU C++, PHP, MySQL, XSLT, Git, Linux

• Participated in the design, development and management of company’s websites. Implemented custom built components and forms used in company’s internal ERP application.• Development of Visual C++ GUI application for barcode scanners. The application supports all Symbol Series 3000 devices.• Developed client part of MS SQL database application.Technology stack: Microsoft Visual C++, Microsoft SQL Server, PHP, XSLT, Linux

• Took part in research, design and development of “SANDRA” – Object oriented Computer-Aided Software Engineering (CASE System) Designer.• Participation in planning, development and testing of “QuantaMagnum” (SCADA System): an application designed for control and data acquisition.• Implemented several modules for advanced process control based on fuzzy logic.Technology stack: Microsoft Visual C++, Java

• As a low level system software developer worked on the design and implementation of the electronic voting system for the Bulgarian Parliament.Technology stack: GNU C/C++, Assembler (Atmel, Zilog, Motorola), Linux