Sergii

SERGII CHUPAK
Kyiv, Ukraine

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PROFESSIONAL SUMMARY
FinTech entrepreneur, Data Research Specialist, and Full-Stack Developer with 15+ years of
experience building technology businesses, financial products, and cryptocurrency
infrastructure.

Proven track record of launching and scaling fintech and crypto projects from concept to
production, including cryptocurrency exchanges, crypto payment processing systems,
payment orchestration platforms, affiliate networks, and B2B lead generation companies.

Strong expertise in market research, partnership acquisition, business intelligence, process
automation, customer acquisition, and software development. Combines business vision
with hands-on technical execution and deep understanding of blockchain technologies,
payment systems, and financial operations.

CORE COMPETENCIES
Data Research & Business Intelligence

●​ Market Research
●​ Competitor Analysis
●​ B2B Lead Generation
●​ Data Collection & Validation
●​ Business Intelligence
●​ Partner Research
●​ CRM Analytics
●​ Sales Funnel Analysis
FinTech & Cryptocurrency

●​ Cryptocurrency Exchanges
●​ Crypto Processing
●​ Payment Orchestration
●​ Liquidity Aggregation
●​ Blockchain Infrastructure
●​ Digital Asset Operations
●​ KYC / AML Automation
●​ Exchange Integrations
●​ Crypto Payments
●​ Institutional Onboarding

Software Development & Automation

●​ Python
●​ C++
●​ JavaScript
●​ Vue.js
●​ Django
●​ REST API
●​ WebSockets
●​ SQL
●​ ClickHouse
●​ PostgreSQL
●​ MySQL
●​ Redis
●​ Celery

Infrastructure & DevOps

●​ Linux
●​ Docker
●​ Nginx
●​ Cloudflare
●​ CI/CD
●​ Monitoring Systems

Leadership & Operations

●​ Agile
●​ Scrum
●​ Product Management
●​ Team Leadership
●​ Startup Development
●​ Vendor Management
●​ Strategic Partnerships
PROFESSIONAL EXPERIENCE
Founder & Full-Stack Developer
Digichanger.pro | Barterhub.club | KissMyNodes.com

2020 – Present

●​ Designed and developed cryptocurrency exchange platforms from the ground up.
●​ Built crypto payment processing infrastructure and transaction routing systems.
●​ Participated in the development of payment orchestration solutions for
cryptocurrency transactions.
●​ Developed liquidity aggregation systems integrating multiple liquidity providers.
●​ Implemented KYC/AML automation workflows and compliance procedures.
●​ Designed integrations with blockchain networks, exchanges, and third-party financial
services.
●​ Built real-time market monitoring, rate tracking, and reporting systems.
●​ Automated operational workflows and internal business processes.
●​ Developed partner onboarding and operational support systems.
●​ Managed distributed development teams and technical contractors.
●​ Participated in development and maintenance of blockchain node infrastructure
through KissMyNodes.com.

Key Technologies

Python, Django, Vue.js, PostgreSQL, MySQL, ClickHouse, Redis, Celery, Docker, Linux,
Nginx, Blockchain APIs

Co-Founder & CEO
Upsale.me

2015 – 2020

●​ Founded and scaled a telemarketing and e-commerce call center business.
●​ Developed B2B lead generation processes across multiple industries.
●​ Built customer acquisition funnels and conversion optimization strategies.
●​ Designed outreach workflows using phone, email, and messaging channels.
●​ Implemented CRM systems and performance tracking frameworks.
●​ Managed and trained a team of more than 50 employees.
●​ Introduced Agile and Scrum methodologies into operational processes.
 ●​ Automated reporting and management dashboards.

Co-Founder & Full-Stack Developer
MonsterLeads.pro

2009 – 2023

●​ Built and scaled a CPA affiliate marketing platform.
●​ Conducted advertiser and publisher research and acquisition.
●​ Managed strategic partnerships and business development activities.
●​ Developed lead tracking and attribution systems.
●​ Built campaign analytics and reporting tools.
●​ Automated campaign validation and fraud detection processes.
●​ Implemented business intelligence systems for performance optimization.
●​ Conducted market research and traffic source analysis.

SELECTED ACHIEVEMENTS
●​ Founded and scaled multiple technology businesses over 15+ years.
●​ Developed cryptocurrency exchange infrastructure from concept to production.
●​ Participated in development of crypto processing and payment orchestration
solutions.
●​ Built and managed teams of up to 50+ employees.
●​ Automated business processes across fintech, crypto, and affiliate marketing
industries.
●​ Developed large-scale data collection and reporting systems.
●​ Built partnerships with businesses across fintech, e-commerce, and digital marketing
sectors.
●​ Combined technical execution, business development, and operational leadership in
multiple ventures.
EDUCATION
Robot Dreams

Embedded Systems Developer Program

Hillel IT School

Machine Learning Course

Unit City Business School

Business & Entrepreneurship Program

Additional Education

●​ Self-directed education in blockchain technologies
●​ FinTech systems architecture
●​ Cryptocurrency infrastructure
●​ Payment systems and digital assets

LANGUAGES
●​ Ukrainian — Native
●​ Russian — Native
●​ English — Intermediate+ (Business Communication & Technical Documentation)