Backend Web Developer

Blackfluo.ai; Paris; Sur place; EUR 60 000 - 80 000; Plein temps

Résumé du poste

A tech company in France is seeking a talented Backend Web Developer with over 7 years of experience. You will be responsible for designing and maintaining robust backend services and RESTful APIs to support scalable web applications. The ideal candidate will have expertise in Java, .NET/C#, or Python, and a solid understanding of database management, security best practices, and cloud platforms. Join us to deliver reliable backend solutions that meet business needs.

Qualifications

• 7+ years of experience in backend development with expertise in Java, .NET/C#, or Python.
• Proven experience designing and implementing RESTful APIs.
• Strong understanding of relational and NoSQL databases.

Responsabilités

• Develop and maintain RESTful APIs and backend services.
• Implement authentication and security best practices.
• Optimize backend processes for speed and reliability.

Connaissances

Java

.NET/C#

Python

RESTful APIs

Database Management

Formation

Degree in Computer Science or related field

Outils

Git

Docker

Kubernetes

AWS

Azure

Description du poste

Designing, developing, and maintaining robust backend services and RESTful APIs to support scalable web applications.

Position Overview

We are seeking a proficient Backend Web Developer to build and maintain server-side logic, databases, and APIs that power modern web applications. The ideal candidate will have strong experience with backend frameworks and languages including Java, .NET/C#, and Python, along with designing RESTful APIs and ensuring system scalability and security.

You will collaborate closely with front-end developers, DevOps, and product teams to deliver reliable backend solutions that meet business needs.

Key Responsibilities

• Develop and maintain RESTful APIs and backend services to support web and mobile applications
• Write clean, maintainable, and efficient server-side code in Java, .NET/C#, Python, or similar languages
• Implement authentication, authorization, and security best practices in backend systems

Database Management & Integration

• Design and optimize database schemas and queries (SQL and NoSQL databases)
• Integrate third-party services and APIs as needed
• Ensure data consistency, integrity, and performance across backend systems
• Work with front-end developers to integrate user-facing elements with server-side logic
• Participate in code reviews, testing, and troubleshooting to maintain code quality
• Collaborate with DevOps teams to deploy and monitor backend services, ensuring uptime and scalability

Performance & Security

• Optimize backend processes for speed, scalability, and reliability
• Implement logging, monitoring, and alerting for backend systems
• Address security vulnerabilities and apply patches proactively

Required Qualifications

• 7+ years experience in backend development with expertise in at least one language: Java, .NET/C#, or Python
• Proven experience designing and implementing RESTful APIs
• Strong understanding of relational and NoSQL databases (e.g., MySQL, PostgreSQL, MongoDB)
• Familiarity with authentication mechanisms (OAuth, JWT, etc.) and security best practices
• Experience with version control systems (Git) and collaboration tools

Preferred Qualifications

• Degree in Computer Science, Software Engineering, or related field
• Knowledge of containerization and orchestration tools (Docker, Kubernetes)
• Experience with cloud platforms (AWS, Azure, GCP)
• Familiarity with microservices architecture and event-driven systems
• Understanding of CI/CD pipelines and automated testing frameworks