Alexander Voloshko

I can solve complex engineering problems quickly and smartly, contribute many good ideas at various stages of software development, investigate solutions, and find ways to innovate. Although my primary activities may involve various R&D software engineering problems, my academic interests consist of blockchains, distributed computing, machine learning, cryptography, and computer graphics. Technical skills: • Programming languages, such as Rust, Python, Scala, Kotlin, Javascript, C/C++, C#, Go, Ruby, Swift, SQL, shell. o Strong knowledge of Object-oriented design patterns and Functional design patterns. o Efficient multithreading and network programming; good knowledge of data structures and algorithms. • Blockchain-based technologies: o Excellent understanding of the Bitcoin, Ethereum and Tendermint protocols. o Able to change Bitcoin Core and Ethereum source code and implement new features on top of them as well as design new protocols. • Back-end development: o Developing microservices-based applications in JVM languages; asynchronous communication with Akka and Message Queues. o Node.js development; building scalable and efficient HTTP/WebSocket services; advanced JavaScript knowledge. o Interaction with various database backends. • Distributed computing: o Building highly scalable and fault-tolerant services with Apache Spark and Hadoop. o Applying standard ML algorithms such as Regression, Classification, and Clustering to data in Apache Spark (MLlib). o Developing and programming parallel algorithms based on MPI protocol. • Database design and programming: o Schema design; strong SQL knowledge; implementing complex structures using views, triggers, and stored procedures. o Practical work with PostgreSQL, SQL Server, and MySQL RDBMS. o Comprehensive experience with sharded MongoDB solutions (MongoDB certified professional). • Client-side development: o Developing cross-platform code to be used on Android and iOS; managing well-organized C++ projects using CMAKE; connecting C++ code with high-level programming languages using SWIG. o Implementing highly efficient apps with a low memory footprint; robust multithreaded solutions. o React Native development with redux, reselect, redux-saga; knowledge of HTML5 and CSS3. • Graphics programming: o Implementing highly efficient and responsive OpenGL-based components for mobile. o Advanced lighting techniques, skeletal animation, hidden surface removal, deep knowledge of shader development(GLSL). o Excellent knowledge of vector algebra and analytic geometry.