Simplicity is a leading-edge platform for communication between municipalities and residents. My job was to design back-end solution for mobile application and to make all services available for millions of users around the globe.There are lots of ways how to achieve this goal, we chose to make fully cloud-base distributed SaaS build on micro-services and deployed in Amazon Web Services (AppSync, Lambda, SQS, SNS, DynamoDB, Opensearch, Terraform,...). We are building our services with the… Show more Simplicity is a leading-edge platform for communication between municipalities and residents. My job was to design back-end solution for mobile application and to make all services available for millions of users around the globe.There are lots of ways how to achieve this goal, we chose to make fully cloud-base distributed SaaS build on micro-services and deployed in Amazon Web Services (AppSync, Lambda, SQS, SNS, DynamoDB, Opensearch, Terraform,...). We are building our services with the “IDEALS” principles: interface segregation, deployability (is on you), event-driven, availability over consistency, loose-coupling, and single responsibility. This time I'm responsible for:- defining GraphQL interfaces- implementing micro-services in Typescript- leading small back-end team (six people)- comminicating with front-end, product teams- doing some DevOps task with Terraform- etc. Show less

Research in domain of Smart cities and machine learning.

eDocu goal is to help people find information about things. eDocu do this by linking things via iTags (QR code, NFC, BLE) that are attached to physical objects. When people scan these iTags they immediately see all related data directly on their smartphone. eDocu a highly customizable system that covers a wide variety of use cases.Project eDocu started on greenfield and I was co-founder. I was responsible for:- defining REST API interfaces and writing documentation in Swagger… Show more eDocu goal is to help people find information about things. eDocu do this by linking things via iTags (QR code, NFC, BLE) that are attached to physical objects. When people scan these iTags they immediately see all related data directly on their smartphone. eDocu a highly customizable system that covers a wide variety of use cases.Project eDocu started on greenfield and I was co-founder. I was responsible for:- defining REST API interfaces and writing documentation in Swagger (unfortunately I cannot say that we reached holy grail of REST architecture - Hypermedia as the Engine of Application State - but we did our best and implemented lot of other principles like client-server, stateless, cache-able, uniform Interface, layered system, code on demand etc.)- writing Unit tests, integration tests (in my opinion one of the most frustrating part of startup life because everything is changing really quickly and tests like to be red) - doing DevOps in AWS environment (Serverless framework and services like EC2, Fargate, API Gateway, Lambdas, IoT,...)- defining database schema (mostly NoSql databases like MongoDB, dGraph)- implementing micro-services (Clojure, Rust lang)- communicating with front-end team, product team - leading back-end team (six people) Show less

As PhD student I taught: Object Oriented Programming Data Structures and Algorithms Principles of Information Systems Database Systems Architecture of Informations Systems Application Architectures of Software Systems

I participated on project with name: Personalized Conveying of Information and Knowledge.I was responsible for system architecture and integration.

I created software for company employees.I was responsible for whole software life development cycle.I gathered customer (employees from company) requirement personally.I created software design according to customers requirements.Finally, I programmed software product and tested it.I created software for automation of internal processes and for integration different applications.