Backend Engineer (.NET, Cloud & APIs)

• Experience

  • A minimum of 6 years of experience in backend development.

  • Experience in developing and maintaining scalable backend services.

  • Experience writing and maintaining unit, integration and performance tests.

  • Familiarity with Agile methodologies and DevOps practices.

  • Hands-on experience with GitHub Copilot, Cursor, Claude-Code... configuration, rule management and use.

  • Experience working in cloud environments such as Azure, AWS, or Google Cloud Platform (GCP).

• Languages: English (Interview will be conducted in English)

• Communication: Strong communication skills, both verbal and written.

• Technical Skills

  • Strong proficiency in C# and.NET Core

  • Strong experience designing and implementing REST APIs

  • Strong SQL and relational database experience

  • Good understanding of:

    • SOLID principles

    • Design patterns

    • Clean Architecture

    • Domain-Driven Design (DDD)

  • Experience with Docker and CI/CD workflows

  • Experience working with cloud platforms (AWS, Azure, or GCP)

  • Understanding of scalable backend systems, observability, and reliability practices

  • AI Engineering

    • Practical experience using AI coding assistants in day-to-day software development (Cursor/Claude Code/Codex/Github Co-pilot)

    • Experience configuring or working with AI-assisted engineering workflows

  • Language Skills

    • Fluent in English (mandatory).

    • French language proficiency is a plus.

  • Soft Skills

    • Strong analytical and problem-solving abilities.

    • Excellent communication and collaboration int cross-functional teams.

    • Ability to take ownership and drive initiatives to completion.

• Interpersonal Skills: Ability to collaborate in a diverse and dynamic environment.

We are looking for a Senior Backend Engineer with strong expertise in C#/.NET, cloud-native backend development, and API engineering.

This is a hands-on engineering role focused on building scalable, secure, and maintainable backend services in cloud environments. The engineer will work closely with Tech Leads and cross-functional teams to implement high-quality solutions aligned with established architectural and engineering standards.

This role is not a Tech Lead or Architect position. The expectation is strong technical execution, active contribution to engineering quality, support for architecture compliance, and ownership of backend deliverables.

AI-assisted development practices are a core expectation for this role. Candidates should be comfortable using tools such as Cursor, Claude Code Codex, or similar within their daily engineering workflow.

As a key member of the team, you will be responsible for:

• Design, develop, and maintain backend services using C# and.NET Core.

· Build secure, scalable, and high-performance REST APIs.

· Implement backend solutions aligned with approved architectural patterns and technical guidelines.

· Develop services capable of handling high concurrency and production-scale workloads.

· Write optimized and maintainable database queries while ensuring data integrity and performance.

· Troubleshoot and resolve backend and production issues efficiently.

• Write clean, maintainable, testable, and production-ready code.

· Apply SOLID principles and safeguard architectural practices such as Clean Architecture, Onion Architecture, Hexagonal Architecture, and Domain-Driven Design (DDD).

· Implement and maintain:

o Unit tests

o Integration tests

o End-to-end tests

o Performance/load tests

· Participate actively in code reviews and engineering quality initiatives.

· Contribute to continuous improvement of development standards, tooling, and workflows.

• Work closely with Tech Leads, frontend engineers, QA engineers, and DevOps engineers

· Translate technical and business requirements into high-quality implementations.

· Support architecture compliance and contribute to solution improvement discussions.

· Provide technical guidance and support to less experienced engineers when needed.

· Participate actively in Agile ceremonies and team collaboration activities.

• Work with cloud platforms such as AWS, Azure, or GCP.

· Containerize backend services using Docker.

· Contribute to CI/CD pipelines and automated deployment processes.

· Support observability and monitoring practices using logging, metrics, and tracing tools.

· Follow security, reliability, and operational best practices in backend implementations.

• Stay up to date with advancements in backend technologies.

• Propose and implement improvements in system architecture and development workflows.

Contribute to knowledge-sharing initiatives and technical documentation