Back-End Engineer (Data Platforms)

Were looking for a Back-End Engineer to help build the next generation of Congrify & IXOPAYs AI Payments Intelligence platform.

In this role youll design and develop the backend services and data infrastructure that power AI-driven insights analytics and payment optimization. Working closely with Product Data Science and Engineering teams youll build scalable systems that help enterprise merchants improve payment performance reduce costs and make smarter decisions using their payment data.

This is a hands-on engineering role with significant ownership and the opportunity to influence both technical architecture and product direction.

Tasks

• Design build and maintain scalable backend services for our AI Payments Intelligence platform.
• Develop data pipelines ETL processes and cloud-native infrastructure that process large volumes of payment transaction data.
• Build the backend services that power analytics dashboards AI-driven insights and customer-facing reporting.
• Collaborate with enterprise customers to integrate payment data from PSPs acquirers and other external systems.
• Develop secure reliable APIs and integration services for payment gateways reporting APIs webhooks and other data sources.
• Optimize backend systems for performance scalability security and high availability.
• Partner with Product Data Science and Engineering teams to design new platform capabilities and contribute to architectural decisions.
• Stay current with emerging technologies and contribute to engineering best practices across the platform.

Requirements

• 3 years of experience in backend software engineering data engineering or database development.
• Strong Python development experience building scalable backend applications and data processing systems.
• Hands-on experience with AWS services including S3 Lambda DynamoDB Cognito SQS and related cloud technologies.
• Experience designing and maintaining data pipelines and cloud-native architectures.
• Strong problem-solving skills and the ability to work independently in a collaborative agile environment.
• Excellent communication skills and attention to detail.

Benefits

• Experience with payment data analytics payment gateways PSP integrations or FinTech platforms.
• Experience with analytical databases such as ClickHouse or Snowflake.
• Experience building AI or machine learning infrastructure and supporting analytics platforms.
• Previous experience working in a startup or high-growth technology company.

This is a remote-friendly position. We welcome applications from candidates based in Germany or Italy. Youll have the flexibility to work remotely and visit our Munich office a few times during the year.