Stepan Romankov (English only)

Implemented a low latency, garbage free gateway which provides FIX and binary connectivity to matching engine with sub-microsecond latency (900 nanoseconds latency in average) so that order round trip time decreased from 5 ms to 100 mcs Developed a binary protocol for inter-service sub-microsecond (loopback interface) latency, garbage free network communication Designed and implemented prototype of service based on CQRS and Event Sourcing approaches

Implemented Scrum across IT department Migrated monolith based web application to microservice architecture without single point of failure Managed migration from PHP to Java based technology stack (Java, SpringBoot, RabbitMQ, Hibernate) Initiated Business Intelligence project and data driven decision making Automated build/release/deployment/monitoring process with GitLab CI, Docker Swarm, ELK, TICK

Was responsible for architectural design and implementation of the core-critical modules Worked in a department that produces platforms for risk management of stock, derivatives and FX markets Developed products using the cutting edge technologies like J2SE, Spring Framework, RabbitMQ and some modules in C++