Company Overview

We are seeking a technically capable professional to contribute to the development and maintenance of financial connectivity solutions within a modern fintech environment. Our technology ecosystem relies on secure integrations between banking institutions, payment service providers, financial platforms, and third-party financial applications.

The position offers an opportunity to work on the technical infrastructure that enables reliable financial data exchange, automated banking services, and seamless payment connectivity.

Role Summary

The Fintech API Integration & Banking Connectivity Engineer will design, implement, test, and maintain integrations connecting financial platforms with external banking systems and payment service providers.

The successful candidate will work across API development, banking connectivity, transaction data exchange, and integration reliability. This position requires practical software engineering experience combined with an understanding of financial technology systems and banking integration standards.

Key Responsibilities

• Develop and maintain RESTful APIs connecting fintech applications with external banking and payment infrastructure.

• Implement integrations supporting account information retrieval, payment initiation, transaction reporting, and balance synchronization.

• Work with Open Banking interfaces and financial data exchange standards, including PSD2-related integration requirements.

• Develop secure authentication and authorization mechanisms for financial API connections.

• Integrate third-party payment gateways, banking platforms, and financial service providers.

• Investigate API failures, transaction synchronization issues, and connectivity interruptions.

• Implement data validation, error handling, logging, and monitoring mechanisms across integration services.

• Collaborate with backend engineers, product teams, and security specialists to improve integration reliability.

• Maintain technical documentation covering API endpoints, authentication procedures, integration workflows, and troubleshooting processes.

• Conduct integration testing to verify transaction accuracy, system compatibility, and service availability.

• Support improvements to API performance, scalability, and secure financial data transmission.

Requirements and Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or an equivalent technical discipline.

• Professional experience in API development, backend engineering, or financial systems integration.

• Strong knowledge of REST APIs, JSON, HTTP protocols, and web service architecture.

• Practical programming experience with Python, Java, JavaScript, or similar backend technologies.

• Understanding of banking APIs, Open Banking concepts, payment processing, and financial data exchange.

• Familiarity with OAuth 2.0, API keys, token-based authentication, and secure integration practices.

• Experience working with relational databases, version control systems, and API testing tools.

• Knowledge of cloud-based application environments and integration monitoring.

• Strong debugging, analytical, and technical documentation skills.

Benefits

• Fully remote working opportunity within Estonia.

• Opportunity to work on banking connectivity and financial integration technologies.

• Exposure to Open Banking, payment infrastructure, and API-driven financial services.

• Professional development through complex fintech engineering projects.

• Collaborative technical environment with opportunities to contribute to architectural improvements.

• Opportunity to develop specialized expertise in financial technology integrations.

Application Instructions

Interested applicants should submit an updated CV outlining their software engineering and API integration experience. Candidates should highlight relevant projects involving banking connectivity, payment APIs, financial platforms, or secure data exchange systems.

Are you interested in this position?

Apply by clicking on the “Apply Now” Button below!

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