Aleksander – Python, Django, Flask

System that process climate data for buildings. From software point of view it has CDN, API and data processing pipeline. Pipeline is fault tolerant and scalable.

• Designed and impelemnted cloud architecture for data processin
• Designed and implemented initial REST API
• Implemented CI / CD system
• Documented the system

System that performs cyber threat intelligence (compromised IP addresses, files, credentials, URLs, etc). It aggregates data from different sources (logs, dark net, crawlers, leaked databases, etc) and performs complex search of company's assets among indicators of compromise.

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• Implemented data piplines that automate cyber threat intelligence (usually a chain of services connected trough Kafka queue)
• Implemented REST API for interaction between services
• Implementing REST API for interaction between client side (browser) and backend services
• Documented system, clarified business requirements

System that orchestrace an EC2 machines, on each machine there exists an agent that runs a pipeline, aggregates results and sends them to server.

• Designed and implementated of data pipelines
• Refactored legacy code

Service that runs a pipeline of ML algorithms on a video stream from doorbels and security cameras.

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• Implemented service that runs ML pipeline on video frames
• Clarified requirements, designed architecture, documentated system

One of the commercial platforms for e-procurement systems. Web site where businesses may create a supplier for government procurements. All commercial platforms are independent and implement different sets of features, they synchronize data with the central database of government procurements.

• Splitted monolith into microservices
• Designed and implemented couple of microservices
• Designed and implemented client-side library (react, styled-components)
• Implemented complex search page (using new component library)
• Documented the system
• Lead a small team

Customer relationship management (CRM) system for one of the largest marketplaces in Ukraine.

• Designed and implemented complex business logic for CRM
• Refactored of legacy code
• Fixed bugs
• Documentated the system

Status service that periodically polls APIs and reports incidents.

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• Designed and implemented status page

Core library for small-sized games (implemented in Java, could be compiled to Android, iOS and JavaScript).

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• Implementated rendering-related and sound-related components of library
• Fixed bugs
• Documentated the library
• Mentored junior developers