Aleksei Kolesnikov Email & Phone Number

Saratov, Ru

Москва, Россия

Big Data Enginering- Streaming framework (based on Airflow and Spark) design, code and support- Streaming solutions (and some batch pipelines) design and support - Clickstream design in terms of big data- Tech lead activities, onboarding, mentoringTechnologies: Scala, Apache Spark 3, Apache Airflow, Apache Kafka, Apache Hive, Presto, Clickhouse

Саратов, Саратовская Область, Россия

Big Data engineer- Tech lead activities- Batch and streaming Big Data solutions design architecture and implementation- Auxillary monitoring tools implementation (ingestion metrics etc.)- Task decomposition etc.- Customer consultancy, demos, communication on requirements- On-call support

Саратов, Саратовская Область, Россия

Have been developing one of TelescopeAI's subsystems. More information about this product is provided on https://www.telescopeai.com/Responsibilities:- Onboarding and mentoring newcomers (Junior Developers)- Interactions with product owner (partial BA activity)- Internal subteams interactions (QA-team, front-end team)- DevOps team interactions- External systems (other projects and their teams) interactions like negotiations on contract of integrations: AVRO-schemas, perodicity etc., aquiring datasets for testing on multiple environments, bug-reports etc.- Implementing new functionality- Building custom solutions from scratch (with no technical details provided), like homebrew DSL in a format of JSON, for configurable suggestions of some entities based on situation provided in data- Bug fixing- Optimizational improvements for existing functionality- Refactored various scopes of applications, internal and integrational services- Built a couple of standalone OSGi apps with limited scopes of responsibilities (base abstract layer apps providing APIs for different technologies like Kafka, business-only apps)- Migrating existing solutions to new authentication ways- Code reviewsMisc activity:- Logs, data investigation- Interactions with support service- Writing and actualization of the documentation covering both design solutions and business topics, how-to's and so on- Building dev-support scripts supposed to gather a limited subsets of cross-dependent data from other environments in order to import it to local machines for testing and debugging purposes (to developers workstations)- Basic servers management via SSH (software installation, updation, configuration, monitoring environments health and security, troubleshooting servers)- Scripts for data migration- DeliveryTechnologies: Java 8, OSGi, Apache Kafka, Apache Karaf, Elasticsearch, Docker, Linux

- Outsourcing for DornoomLP's side project, an android game. I was in charge of intensively cooperation with original scenario's author in order to bring it to live via Scenario framework written for this game, I also were in charge of sound-design (building atmospheric sounds, other SFX etc.)- Designed and implemented some modules for sale in a format of Rack Extension for Reason (digital audio workstation)- Created multiple sites like Saratov State Law Academy for example Scientific Library: http://lib.ssla.ru/