Data Engineer\ Data Analyst Greenwich IT Solutions $$$$

Madfish

Madfish

Software Engineering, IT, Data Science

Ukraine · Europe

Posted on May 10, 2026

We are looking for a Senior Data Engineer\ Data Analyst to join a global IT FinTech holding (PSP) that provides payment and fintech SaaS solutions focused on high-risk industries, with high transaction approval rates. The company provides access to a wide range of international payment methods, works with multiple jurisdictions, and supports merchants across global markets.

The products - Fintech Saas solutions and platforms (B2B)

Product Team: Product Owner, Business Analyst, and technical cross-team

Work format – remote, full-time

Conditions – competitive salary, flexible schedule, paid vacation and sick leave, career and financial growth, official employment, and a professional team

Requirements:

  • 3+ years of experience as a Data Engineer in fintech/payments/banking and other
  • Strong SQL skills (complex queries, optimization)
  • Hands-on experience with relational/analytical databases (e.g.,PostgreSQL, ClickHouse, BigQuery)
  • Experience building ETL/ELT pipelines using dbt, Airbyte, Airflow, or similar tools
  • Practical experience with Python for analytics (pandas, numpy)
  • Knowledge of data modeling and data storage concepts (DWH)
  • Experience implementing Continuous Integration (CI) in data projects
  • Experience working with transactional/financial data
  • Understanding of data pipeline orchestration and workflow management
  • Understanding of A/B testing and basic statistics
  • Ability to work with large datasets and build analytical solutions
  • Strong communication skills, with the ability to explain complex insights to non-technical stakeholders
  • English - B1

Nice to have:

  • Experience as a Data Analyst
  • Hands-on experience with Looker (preferred) or other BI tools
  • Understanding of data pipeline design and optimization best practices
  • Experience in fintech / PSP / acquiring
  • Experience in fraud analytics
  • Experience with Kafka or streaming systems
  • Understanding of PCI DSS / GDPR

Responsibilities:

  • Build and maintain a DWH for transactional data
  • Develop and optimize ETL/ELT pipelines (dbt / Airflow / scripts)
  • Design and maintain data models (fact/dimension tables)
  • Ensure data quality, monitoring, and performance optimization
  • Integrate data from multiple sources (PSPs, APIs, internal systems)
  • Analyze key business metrics (approval/decline rates, chargebacks, refunds, PSP performance)
  • Build and maintain dashboards (Metabase / Tableau or similar tools)
  • Run and analyze A/B tests and product experiments
  • Deliver actionable insights for product and leadership teams
  • Analyze payment routing efficiency
  • Identify fraud patterns (velocity, geo, BIN analysis)
  • Propose improvements to routing logic
  • Translate business requirements into data solutions
  • Communicate insights to non-technical stakeholders