API .Net Developer (B2B collaboration)

Objective / Purpose of role:

This role will be instrumental in designing and building a cutting-edge Data API for our client. By leveraging architectural expertise, the candidate will develop a scalable .NET-based API that seamlessly integrates with Databricks Unity Catalog. This API will serve as a key enabler for dynamic data access, supporting both GraphQL and REST interfaces, and providing a robust foundation for future data-driven innovations.

Start date: ASAP (but we will need a few weeks for onboarding)

End date: 31 Dec 2025 (but we can extend in 2026)

B2B collaboration

Rate: 27 - 30 euro/hour

Full time (9 am - 5 pm Ro time)

Role Description (key accountabilities, activities):

- Data API Development: Lead the development of a robust and scalable .NET-based API capable of supporting both GraphQL and REST interfaces. This API will provide seamless access to data from the Databricks Unity Catalog, enabling dynamic querying across diverse datasets.

- Collaborate with the team to define the architectural framework of the new Data API, ensuring flexibility, scalability, and alignment with the overall data strategy.

- Integration with Databricks: Build API functionalities that integrate efficiently with the Databricks Unity Catalog, supporting secure, reliable, and generic access to cataloged data.

- Operational Excellence: Focus on ensuring high performance, maintainability, and reliability of the API, with strong consideration for security and scalability.

- Team Collaboration: Work closely with cross-functional teams to align development efforts with business needs.

Competencies Required (technical skills, knowledge):

- NET and C# Development: Proven expertise in .NET/C# development, with a focus on designing and implementing scalable, high-performance APIs for enterprise applications.

- GraphQL and REST API Development: Hands-on experience building and maintaining APIs with GraphQL and REST, ensuring seamless data access and interaction.

- Databricks and Data Platforms: Familiarity with Databricks Unity Catalog or similar data platforms, and experience developing APIs that interact with cloud-based data systems. Knowledge of Azure Cloud is a strong advantage.

- Strong understanding of software architecture principles, with experience designing systems that are modular, scalable, and adaptable to future requirements.

- Problem-Solving and Optimization: Exceptional analytical skills, with the ability to diagnose performance bottlenecks and implement effective solutions to ensure reliability and efficiency.

- Deployment: Experience with CI/CD deployment processes using Azure DevOps.

- Monitoring: Knowledge of monitoring tools and practices, including telemetry and performance monitoring