Backend Developer

Description

The Back End Developer will develop and maintain APIs, services, and server-side logic and databases. You'll contribute to system architecture and help scale our platforms. You will ensure high performance and responsiveness of applications, working alongside frontend developers and other team members.

Responsibilities

• Design, build and implement backend services and APIs
• Design data models and manage database integration
• Integrate with databases and third-party APIs
• Implement security and data protection measures
• Optimize performance and security of systems

Requirements

• Strong knowledge of backend technologies / languages, particularly .NET ecosystem
• Experience in .NET 8+ (or latest version), including ASP.NET Core for building web APIs and services
• Experience with relational databases, such as PostgreSQL, MySQL for structured data, complex queries, and ACID compliant operations
• Experience with NoSQL databases, such as MongoDB, for handling unstructured or semi-structured data, schema flexibility, and high-throughput scenarios
• Experience with RESTful APIs using Swagger / OpenAPI for API design, versioning and documentation
• Experience in Microservices Architecture for distributed systems design and scalability
• Experience in Message Queuing using RabbitMQ
• Experience in Containerization and Orchestration using Docker and Kubernetes (K8s)
• Experience in Authentication using Auth0 and JWT
• Experience in Cloud Services such as AWS, Azure, GCP

Nice to have

• Experience in RabbitMQ Middleware
• Prior experience in the EdTech domain (e-learning platforms, digital classrooms, LMS)
• Knowledge of learning science, instructional design, or accessibility standards (e.g., WCAG)
• Familiarity with tools like Moodle, Canvas, Zoom SDK, or Google Classroom integration

Working conditions

• Partly / fully remote
• B2B contract