Job descriptionStrong proficiency in one or more backend languages / frameworks , e.G. :Node.Js (Express, Nest.Js)Python (Django, FastAPI, Flask)Java (Spring Boot)Go, .NET, or Ruby on RailsSolid understanding of RESTful API or GraphQL design principles.Experience with databases (SQL and NoSQL : PostgreSQL, MySQL, MongoDB, Redis, etc.).Knowledge of authentication / authorization (OAuth 2.0, JWT, OpenID Connect).Familiarity with CI / CD pipelines , Docker , and cloud platforms (AWS, GCP, Azure).Understanding of version control (Git) and agile development practices.