Yaroslav Horbenko Email & Phone Number

Washington, Dc, Us

Own the most critical and complicated part of the project - streams powered services for real-time camera incident detections (person detection, weapon, loitering, tracking and many other types). Production backend is highly loaded, an average rate is about 400M processed requests (messages) per hourResponsibilities:- architecture design, writing docs and specs, tasks creation, guidance for test developers- feature development and delivery to our customers within strict schedule- deployment to cloud environments with no downtime, health monitoring (metrics) and production incidents resolution- work closely with AI team in order to improve detection models and make system smarterAchievements:- improved architecture of backend, made it robust, reliable and highly scalable- rules engine 4X times speedup: real-time frames processing and incident detectionTechnology Stack: Scala, Java, Python, Kafka Streams, Play, Sentry, LaunchDarkly, AWS (EC2, ECS, MSK, CloudWatch, ElastiCache, OpenSearch, CodePipeline, CodeBuild)

Worked in many domains during this time - Insurance, Observability and Data AnalyticsResponsibilities: - designed high-loaded services in Scala with distributed architecture and micro-service approach used- integrated third-party services and APIs into loosely coupled components of our system - deployed applications to the production cloud environments, resolved production incidents - wrote specs, performed architecture design, created tickets- developed state-of-the-art analytics tools to support diverse tasks ranging from ad hoc analysis to production-grade pipelines and workflows for customer applications- partnered with Data Scientists and Analytics Engineers to improve performance and reliability of advanced algorithms Achievements: - led the Trino project, a data-lake enabling searches across data-sources; Trino was delivered and deployed within 5 months; it replaced OpenSearch, saving $1.2 million/year and adding more features; designed ETL pipeline successfully handled about 250M incoming log batches per hour - designed distributed architecture for insurance-analytics from the ground-up; this included the core modules, API, third-party integrations; the cloud-native architecture included high-volume computation capability powered by Akka, Spark, Redis, Kafka and Mongo DB Technology Stack:Scala, Akka, Akka HTTP, Play Framework, Postgres, MongoDB, Kafka, Spark, Specs2, GitLab, Kubernetes, KeyCloak, Cats, Circe, HTTP4s, AWS (S3, Kinesis, MSK, Glue, IAM, CW), Trino

New York, New York, Us

Served on several teams, leading 3 of those projects, to build the infrastructure for online advertising engines and for collecting advertising statsResponsibilities: - designed high-loaded API services in Java/Scala with distributed architecture and micro-service approach used- implemented, and architected, mission-critical and high-loaded components related to pulling stats and managing ad-campaigns in real-time - led end-to-end design of a reporting system powered by an OLAP cube in Scaladeployed incremental upgrades, owned health-monitoring and incidents-resolution for productionAchievements: - led the process of redesigning legacy banner engine to Java with 8x performance improvementthe sophisticated ad-campaign management solution we built was a market-differentiator for NativeAds, that way company signed a few big clients Technology Stack:Java, Scala, Akka, Play Framework, MySQL, Slick, OLAP, AWS S3, Redis, ElasticSearch, ScalaTest

Kyiv, Ua

Served on 8+ projects for a diverse client-set Responsibilities: - researched new features, designed and implemented them into software products, this included design, development, bug-fixing and BAU incident resolution- managed a 5-10 developer team, assigning and reviewing their day-to-day tasks- elicited requirements and provided estimates, wrote specs, and designed architecturepeer-reviewed merged and deployed new build to production servers; served as the administrator for high-loaded production servers - interviewed candidate-developers to build a new teamAchievements: - redesigned the architecture of the API, storage and crawler components of PageFreezer project (website and social media archiving tool), added critical features, reduced resources usage- managed 200TB+ data storage with crawled website snapshots and administered an unconventionally large MySQL database (8 GB+) that contained all metadata; performed multiple migrations, with varied scope, without noticeable downtime for our clientsTechnology Stack:Java, J2EE, Spring Framework, Tomcat, Nginx, Rabbit MQ, MySQL, Hibernate, Solr, Gson, JUnit

Master, Computer Science

Master, Computer Science

Master'S Degree, Finance And Financial Management Services

Lieutenant, Military Faculty