Oleksandr Chekanskyi
Berlin
Summary
Accomplished software development professional with over 13 years of experience in software design, development, testing, and integration.
Demonstrated expertise in building and leading engineering teams for over 5 years, fostering growth and innovation.
Proven in designing and managing distributed, high-load, fault-tolerant systems with a strong aptitude for problem-solving.
Overview
12
12
years of professional experience
Work History
Engineering Manager
SumUp
03.2021 - Current
- Managing two engineering teams, comprising a total of 12 engineers
- Successfully built and developed two engineering teams from the ground up
- Took over leadership of an additional engineering team during company restructuring
- Boosted profile completion rates by 15% across multiple markets, resulting in a 5% increase in MAUs
- Elevated the App Store rating of the merchant app from 3.5 to 4.7
- Taking part in the revitalization of critical infrastructure, focusing on reducing technical debt
- Actively involved in the hiring process as a hiring manager and technical interviewer for Backend Engineers
- Engaged in close collaboration with PM and PD counterparts to develop comprehensive product roadmaps, aligning team efforts with organizational goals
- Contributed to the engineering promotion committee for our tribe, aiding in career progression decisions
- Fostered a positive team and tribe culture, emphasizing efficient delivery and work-life balance
- Technologies: Java, Go, Ruby, Kotlin, Swift, Objective C AWS(EKS, RDS for PostgreSQL, S3), Kafka, Terraform, ArgoCD, GH Actions, Jenkins, Jetpack Compose, Swift UI, CocoaPods.
Engineering Manager
Omio
01.2019 - 03.2021
- Tech Lead and People Manager for a team of 8 engineers;
- Responsible for Marketing Tech delivery;
- Designed and took part in implementation of in-house User Context system;
- Turned pile of legacy Python scripts to sustainable system that supports massive online advertisement delivery;
- Managed additional outsource team to deliver crucial business reporting tools;
- Lead technology side of Marketing in the company rename;
- Build reliable and fast delivery processes;
- Mentored and navigated colleagues to meet their career goals;
- Performed regular 101 meetings with the engineers;
- Took part in bi-annual engineering performance review and salary discussions for the entire engineering tribe (4 teams);
Senior Software Engineer
Omio
11.2017 - 01.2019
- Tech Lead for a group of 4 engineers, to satisfy Site Reliability for engineering tribe and data related topics;
- Took essential part in Hiring Process;
- Member of Dev Ops / Big Data company chapters
- Took part in implementation of In-House universal tracking tool
- Designed and implemented cross datacenter data migration and validation tool with aim of unlimited scalability;
- Performed complex data migrations;
- Designed and implemented real-time streaming event validation and monitoring platform;
- Technologies: Java 8, Go, Python 3, Google Cloud Platform (BigTable, Cloud Spanner, MySQL, PostgreSQL, GCE, Dataflow, GCS, BigQuery, Kubernetes, Cloud Pub/Sub, Stackdriver), Airflow, GRPC, Protocol Buffers, Docker, AWS (Kinesis, RedShift);
Senior Data Engineer
Bonial
02.2016 - 11.2017
- Shaped and develop Data Engineering team from 2 to 12 people
- Build DWH universe for the company from scratch
- Responsible for end-to-end data intensive application design
- Designed and implemented In-house Event Tracking system
- Significantly improved company billing system
- Performed migration from Cloudera CDH Platform to AWS services
- Implemented and designed parts of Data Warehouse solution systems for data collection, storage and processing
- Multi channel complex raw data to clean data delivery systems
- Led a group of 4 engineers in the design, and development of data-based software solutions
- Technologies: Java 8, Scala, Spring, AWS (EC2, S3, EMR, Redshift, Data Pipeline), CDH Platform (HDFS, YARN, Spark, MLib, Hive, Impala, Flume, Apache Kafka), Elasticsearch, Docker
Senior Software Engineer
Yapital
08.2014 - 02.2016
- In-house multi channel payment provider and mass transaction processing system
- Worked closely with Business analysts problem specifications and system designs
- Took part in design and implementation of multiple app services such as accounting, settlement, clearing. Consumer and merchant data services
- Technologies Java 7/8, Groovy, Javascript, Spring, JBoss Infinispan, JEE, OAuth 2, HornetQ, Apache Camel, Hibernate, Oracle RDBMS, Elasticsearch, JBoss EAP
Senior Java Developer
DataArt Solutions
05.2012 - 07.2014
Java Developer
Ciklum
09.2011 - 04.2012
Junior Java Developer
DCS Software e Servizi
0 2011 - 09.2011
Junior Software Developer
Vintage Design Studion
01.2010 - 0 2011
Education
University Graduate - Software Engineering
Khmelnitskiy National University
Khmelnitskiy, Ukraine2011
College graduate - Software Engineering
Kamyanets-Podilskyi Industrial College
Kamyanets-Podilskyi, Ukraine2008
Skills
- Team Leadership / People Managing
- Communication between parties (stakeholders, architects, development teams)
- Team player with strong passion of Software Engineering
- Advanced problem solving skills
- Data intensive and distributed systems design experience
- Performance and scalability optimization
- Rich experience in end-to-end application development
- API design knowledge
- Big Data domain expertise
Hobbies
Music, Chess
Timeline
Engineering Manager
SumUp
03.2021 - Current
Engineering Manager
Omio
01.2019 - 03.2021
Senior Software Engineer
Omio
11.2017 - 01.2019
Senior Data Engineer
Bonial
02.2016 - 11.2017
Senior Software Engineer
Yapital
08.2014 - 02.2016
Senior Java Developer
DataArt Solutions
05.2012 - 07.2014
Java Developer
Ciklum
09.2011 - 04.2012
Junior Software Developer
Vintage Design Studion
01.2010 - 0 2011
Junior Java Developer
DCS Software e Servizi
0 2011 - 09.2011
University Graduate - Software Engineering
Khmelnitskiy National University
College graduate - Software Engineering
Kamyanets-Podilskyi Industrial College
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