Сергій

Employment History
SERHII Head of Data Services at SQUAD, Kyiv 11/2022—02/2025
KHOLOSTOVSKYI Coordination and management of the direction of data processing and
QA team (100+ people).
Launching a proof of concept of tasks, from planning to reporting on
[открыть контакты](см. выше в блоке «контактная информация») achieved results.
[открыть контакты](см. выше в блоке «контактная информация») Launching test activities, from plan to result.
Kyiv, Ukraine Manage and control the approved budget during the each project.
[открыть контакты](см. выше в блоке «контактная информация») People management, people development.
rhii-kholostovskyi-a77685147/
Handling all escalations from the direct team members and providing
them with the necessary instructions and algorithms to work.
Profile Achievements:
Experienced operations and data leader Launching an additional business function in the department – ​c reating a
QA team, thanks to which the direction received additional business value,
with 7+ years of experience in
and the team also helped develop potential candidates.
managing cross-functional teams, A roadmap for the department’s career professional development was built
optimizing workflows, and scaling as a component of talent development.
business operations. Proven ability to
launch new business functions, lead Supervisor at SQUAD, Kyiv 08/2020—10/2022
process improvements, and implement Created and implemented work instructions, guidelines, and operating
metrics to drive operational efficiency. procedures to maintain and enhance the effectiveness of the work
environment.
Adept in aligning business
Setting metrics and KPI for teams with process and results monitoring.
goals with team development and Personnel management, people development (130+ people).
organizational growth. Solving issues related to task prioritization.
Improving internal annotation tools by testing, gathering and providing
feedback and suggestions to the development team.
Achievements:
Core competences
Implemented structured and regular knowledge sharing sessions, which
Operations Strategy & Execution resulted in a 15% reduction in markup mistakes and, as a result,
Team Leadership & Talent Development increased team quality and velocity metrics.
KPI & Performance Metrics Implementation
Business Process Optimization Team Leader at Ring Ukraine, Kyiv 12/2017—07/2020
Cross-functional Collaboration Organization and assistance for a team of 10+ people.
Data-driven Decision Making Onboarding and support newcomers.
Created and implemented work instructions to maintain and enhance
Project Management (Agile/Scrum)
the effectiveness of the work environment.
Budgeting & Financial Oversight Assistance in improving the performance of team members.
Coordination, weekly reporting, training, support in the execution of
tasks.
Working tools:
Data Operator at Ring Labs, Kyiv 03/2017—11/2017
Jira
Video markup according to requirements and rules using special tools.
Confluence Work with different types of tasks.
Miro Help the line manager in the organization of the team.
Tableau Build relationships in the team, work with data for statistics, reporting,
Google suite drawing charts and diagrams, maintain internal documentation, and
TestRail team support in work processes.
Achievements:
A critical error has been identified that has been causing data corruption
in datasets for a long time.
Courses: Education
Mental health (Anxiety and Related
Disorders) at Coursera Specialist degree, National Technical University Polytechnic
9/2024—09/2026 Institute, Kharkiv 09/2015—06/2017
Program Subject Area "System design", professional
Project Management Course at qualification "engineer system analyst"
Simplesense
05/2024—05/2028 Bachelor’s degree, National Technical University
Polytechnic Institute, Kharkiv 09/2012—05/2015
Public speaking at Squad Field of study "Computer science" and obtained qualification
06/2021—07/2021 "specialist in information technologies".

Project management training at Squad Junior specialist, Mariupol Mechanics and College,
02/2021—04/2021 Mariupol 09/2009—06/2012
Field of study "software development" and obtained
qualification "technician - programmer".