Dmytro Chaika Email & Phone Number

Abu Dhabi, United Arab Emirates

• Provided technical assessment, feedback, and guidance to end-users, management, and product owners.• Planned, tracked, and provided status updates on software projects.• Managed and mentored team members, including task distribution and onboarding of new members.• Conducted research on alternatives and new technologies.• Participated in the design of a completely new system capable of handling over 10 million messages per second.• Collaborated in the design and creation of a CI/CD pipeline for efficient software development and deployment.• Designed and implemented microservices architecture to enhance scalability and modularity.• Successfully transitioned projects to use Gradle and Spring technologies.• Created entirely new schemas and templates for NoSQL databases.• Led the hiring process, including candidate search and selection.

Abu Dhabi, United Arab Emirates

• Managed and mentored a team of developers, assigning tasks and ensuring successful project execution.• Maintained and supported released products while updating existing ones.• Created new schemas and templates for NoSQL databases.• Implemented new REST API endpoints and additional features to enhance data retrieval from existing and new databases.• Re-implemented the backend using the Spring framework.• Collaborated in the implementation of correlation algorithms for data analysis.• Conducted unit tests to ensure the quality and reliability of the developed applications.• Designed and developed high availability and low latency applications for big data processing, handling over 100,000 messages per second: - Redesigned and updated existing software to read and store data from Kafka into Cassandra. - Implemented software to read and store data from Kafka into Elasticsearch. - Designed and implemented software to read and store data from text files into Elasticsearch. - Implemented software to read and process data using integrated advanced text processing engines and created Kibana dashboards for detailed analysis.• Conducted hiring activities, including candidate search and technical interviews.

Abu Dhabi, United Arab Emirates

• Implemented a set of new REST API endpoints to enhance data retrieval and analysis capabilities.• Actively contributed to the creation of a completely new design for a Cassandra database optimized for storing and managing big data.• Collaborated in the development of a new backend system that efficiently processed requests from the UI and retrieved necessary data from the Cassandra database.• Contributed to the implementation of software designed to read and process a high volume of data, processing over 100,000 messages per second from Kafka and storing them into Cassandra.• Utilized a third-party tool for text processing, enhancing the data processing capabilities.• Developed a data generator tool to simulate and generate a substantial amount of data, closely resembling production data, for extensive testing and analysis purposes.• Implemented a tool specifically designed for efficient processing of pcap files, enabling streamlined handling of network traffic data.

Abu Dhabi, United Arab Emirates

Project 1• Collaborated in the creation of the design for a Cassandra database to store and manage big data.• Designed and implemented API endpoints to facilitate communication between the UI and backend systems.• Developed the backend systems to process requests from the UI and retrieve required data from the Cassandra database.• Designed a PostgreSQL database to support UI functionalities such as user information, login credentials, and UI state.• Created UI design and implemented it using Flex.Project 2• Designed a PostgreSQL database to support UI functionalities, including user information, application management, and UI state.• Developed API endpoints to handle requests from the UI and communicate with the managed applications.• Implemented the backend systems to process UI requests and forward them to the appropriate managed application.• Created UI design and implemented it using Flex.

Chernivtsi, Ukraine

Developed and maintained an online appointment managementsystem (https://getbizzi.com/).•Implemented new features for PHP backend and frontend.•Created a synchronization tool for Google Calendar usingJavaScript.•Built an online web store (https://www.eduporium.com/) usingthe Magento framework.•Developed custom modules and implemented UI based onprovided designs.

Chernivtsi Region, Ukraine

Project: Appill.nl• Developed and maintained the initial version of Appill.nl, a medical resource website targeting Dutch-speaking users.• Independently designed and implemented a web crawler specifically for medical mobile applications.• Implemented the user interface based on provided UI designs.