Сергій

SERHII
ZAITSEV
Customer Support Specialist

About Me

[open contact info](look above in the "contact info" section) Customer-focused CRM Configurator with 4+ years of hands-on
experience supporting and configuring enterprise CRM systems for a
US-based client.
[open contact info](look above in the "contact info" section) Strong background in requirements implementation, client
communication, issue investigation, and environment configuration.
Vinnytsia, Ukraine Experienced in working closely with developers, analyzing logs and
databases, and resolving system-related issues across multiple
github.com/zaitsev-serhei environments.
Known for clear communication, analytical thinking, and strong
ownership of client-facing tasks.
Highly motivated to continue growing as a Customer Support
Language Specialist / CRM Configurator and open to new challenges, tools, and
learning opportunities.

English (B2-C1) Experience

Ukrainina (native) Customertimes - Ukraine
2021 - 2025
Configurator Analyst(Java Developer)
Soft Skills Configured and optimized enterprise platform features
for US-based client.
Communication & teamwork Collaborated with Java developers to design and
implement technical solutions.
Fast learning & adaptability Participated in Agile workflow: daily standups, sprint
Time management & task planning, backlog refinement.
Gained experience in client communication,
estimation requirements analysis and task estimation.

Problem-solving mindset
Education
National Technical University “KhPI”
Bachelor of Computer Science - 2021

Tech Skills
Languages: Java, Kotlin, SQL
Frameworks: Android SDK, Room, Dagger 2, Gradle, Maven,
Git, Spring (boot), Apache Kafka, Retrofit, Postman
Collaboration Tools: Jira, Confluence
Databases: PostgreSQL, SQLite
Concepts: Clean Architecture, REST APIs, Unit Testing

Additional Strengths

Strong client communication and expectation management
Hands-on troubleshooting and problem-solving mindset
Experience working with databases, logs, and system
integrations related to CRM platforms
Comfortable working in fast-paced, client-driven
environments