oroshnivskyy
Oleh Roshnivskyi
Kyiv, Ukraine
CodersRank Score

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This represents your current experience. It calculates by analyzing your connected repositories. By measuring your skills by your code, we are creating the ranking, so you can know how good are you comparing to another developers and what you have to improve to be better

Information on how to increase score and ranking details you can find in this blog post.

446
CodersRank Rank
Top 2%
Based on:
Stackoverflow 14 events
Top 10
Go
Go
Developer
Ukraine
Top 50
PHP
PHP
Developer
Ukraine
Highest experience points: 0 points,

0 activities in the last year

List your work history, including any contracts or internships
Clario Tech
Dec 2019 - Sep 2021 (1 year 9 months)
Kyiv, Ukraine
Group Lead
Architect and implement initial backend services for new products based on Golang and MongoDB technologies with a Microservice-oriented approach and domain-driven design. Team lead of 28 including 3 team managers responsible for 7-12 engineers. Utilize Gitlab & Gitlab CI for source hosting and Terraform to plan infrastructure. Employ AWS Fargate as a runtime for containers; AWS ALB and SQS for asynchronous communication and tasks; gRPC for cross-service communication; Prometheus and Grafana for monitoring; REST principles for architecture. Supervise data engineering team tasked with managing and improving data lake using HDFS, Apache Hadoop, Hive, Apache NiFi, MySQL, and Tableau. Collaborate with security team to implement improved practices and scanners; worked on hackerone.com program implementation in 2020 which significantly increased application security.
go mongodb aws aws lambda grpc rest api swagger microservices gin SQS SNS docker Fargate ALB ddd ci/cd gitlab jira git
Kromtech
4 years 6 months
Kiev Region, Ukraine
Group Lead
Jan 2017 - Dec 2019 (2 years 11 months)
Managed team of 29, overseeing department P&L, performance reviews, and grading processes. Led 3 web teams in completing SalesForce integration process. Developed integration services on internal company projects including real-time chat communication, account service, notification engine, and telephony service. Oversaw department’s employee growth program, salary review, and cross-team communication. Collaborated with HR and engineering departments to cultivate employee development; formulated skill identification and performance measurement processes. Regularly brokered consensus among multiple departments. Worked directly with engineers, evaluating individual workflow, conducting code reviews, providing clear and timely feedback, and motivating individuals to achieve ambitious goals.

Key Contributions:

Designed and delivered GDPR support on services in only 2 months; program has data remove and export modules that interact with 9 of the company’s services.
Implemented Scrum for the team, significantly improving delivery time and prioritization of deployed tasks.

Projects:

Chat service based on Golang, RabbitMQ, MySQL, MongoDB, S3 technologies.
VoIP call service utilizing Asterisk PBX, statistics microservice, WebRTC-based call center (backend and frontend), and SalesForce integration service.
Browser extensions—Safari and Chrome anti-tracking and ad-blocking extensions; spearheaded development and patented new anti-phishing service.
Account service providing web interface for client to access subscriptions, personal data, and API for desktop solution.
Marketing journey planning service—rich web interface for planning marketing emails and desktop notifications.
Mailing gateway system aggregating several mail delivery providers.
Billing gateway integrating 6 billing providers with company backends.
ZoomDiagnostics—Desktop application to help customers connect with automated agent support system.
Go php mongodb mongoose mongo aws mysql docker rabbitmq ci/cd redis elasticsearch
Team Lead
Jun 2015 - Jan 2017 (1 year 7 months)
-
php go mysql mysq redis rabbitmq nginx ci/cd docker rest api asterisk sip
ZEO Alliance
Sep 2013 - Jun 2015 (1 year 9 months)
Kiev Region, Ukraine
Software Engineer
php mysql nginx redis rabbitmq gearman zend framework

This section lets you add any degrees or diplomas you have earned.
IFNTUOG
specialist, English, Physics, Economics, Programming, Mathematics
Jan 2006 - Jan 2011
physical-technical lyceum
secondary general education, Phusics, Mathematics
Jan 2004 - Jan 2006
Educative
Scalability & System Design for Developers
Apr 2021
Cousera
Software Architecture
Nov 2018
Sun Microsystens
SCJP
Jun 2011

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