Senior Integration Engineer / Senior Back-end Engineer - .NET & AWS

N-iX is a global software development company with over two decades of experience, supporting industry leaders and Fortune 500 companies in their digital transformation. We are currently seeking a Senior Integration Engineer to join a dedicated squad supporting a major European online car marketplace, where you will contribute to critical integration initiatives within a collaborative and professional environment.

Key responsibilities

• Design, build, and maintain .NET-based integration services and microservices for key data initiatives.
• Develop, deploy, and monitor cloud solutions on AWS while ensuring secure configuration and operational excellence.
• Implement robust API integrations, including handling authentication, rate limits, retries, and idempotent processing.
• Build event-driven and asynchronous integration flows, such as webhooks, scheduling, and incremental data feeds.
• Collaborate with the team to ensure data quality and reconciliation across pipelines while maintaining clear technical documentation.

Requirements

• At least 3 years of professional experience in AWS cloud environments and .NET Core development.
• Proven expertise in building integration services and microservices within a cloud-native architecture.
• Strong understanding of API integration patterns, including data contracts, pagination, and error handling.
• Solid experience with event-driven architectures and managing data ingestion pipelines.
• Excellent communication skills in English and a strong commitment to knowledge sharing within an established engineering team.

What we offer

• Opportunity to work on high-impact projects for a leading European digital marketplace.
• A fully remote working environment within a global, tech-savvy organization.
• Collaboration with an established squad that values architecture alignment and clear delivery processes.
• Access to professional development and the chance to work with modern cloud and integration technologies.