Payments Integration & API Specialist

Daftcode Group; Warszawa; Hybrid; PLN 90,000 - 150,000; Full time

Job summary

Daftcode is seeking a Payment Integration Specialist to join one of its portfolio companies and bridge technology, product, and banking partners to streamline payments. The role emphasizes an analytical mindset and experience with fintech, payments, or e-commerce, especially Open Banking or SEPA.

You will map end-to-end integration paths, test flows, and work with API documentation to ensure smooth bank integrations with high checkout conversion. A hybrid Warsaw work setup is available.

Qualifications

• Experience in fintech, payments or e-commerce (Open Banking, SEPA, or payment gateways).
• Ability to read API documentation and map complex integration dependencies.
• Ownership and curiosity to research flows without templates.
• Strong communication with engineering and business teams.
• Experience with cross-functional initiatives and collaboration.

Responsibilities

• Map end-to-end integration paths and oversee the full lifecycle of new and existing bank integrations.
• Test payment flows from the end-user perspective using VPNs and test environments.
• Monitor integration performance, optimize bank selection layouts and reduce checkout friction.
• Benchmark integration flows and performance against competitors and industry standards.
• Drive technical issues end-to-end – from root cause to data gathering and coordination with Dev, Product, Ops, and external providers.
• Establish onboarding and testing processes for upcoming bank integrations to scale payment infrastructure.
• Maintain proactive day-to-day communication with bank representatives, external providers, and internal teams.
• Collaborate with data analysts and stakeholders to evaluate performance metrics and priorities for integrations.
• Fluent in English and Polish (written and spoken).
• Ability to use AI tools effectively and responsibly in day-to-day workflows.

Skills

Analytical mindset

Fintech experience

Payments knowledge

Open Banking knowledge

API documentation reading

English proficiency

Polish proficiency

Communication skills

AI tools usage

Tools

Postman

API testing tools

Job description

Daftcode is seeking a Payment Integration Specialist to join one of its portfolio companies and bridge technology, product, and banking partners to streamline payments. The role emphasizes an analytical mindset and experience with fintech, payments, or e-commerce, especially Open Banking or SEPA.

You will map end-to-end integration paths, test flows, and work with API documentation to ensure smooth bank integrations with high checkout conversion. A hybrid Warsaw work setup is available.