Backend Software Developer

At Nextlane , we don't just develop software solutions – we create the future of the automotive industry.

We are a company that combines advanced technology with a clear vision : simplifying and digitizing every step of the automotive customer journey, empowering manufacturers and dealerships to thrive in a constantly evolving market.

So… What does it mean to be a #Nextlaner?

Be committed to provide an environment where you can learn, grow, and collaborate on projects that make a global impact.

Our success is measured not just by results, but also by the growth and satisfaction of those who are part of our company.

As a Backend Developer , you will play a critical role in designing, developing, and maintaining the backend systems of our applications. Your expertise in C#, .NET Core 7 / 8 / 9 , and database technologies will ensure the creation of scalable, secure, and high-performance backend solutions. You will collaborate closely with front-end developers, DevOps engineers, and product teams to deliver robust APIs and services.

Additionally, you will enforce best coding practices, contribute to architectural decisions, and promote continuous improvement within the development team.

A strong emphasis is placed on automated testing . You must have hands-on experience with unit testing, integration testing, and end-to-end testing using tools such as Newman, Playwright, Cypress, Selenium or similar frameworks.

Backend Development

Develop, optimize, and maintain backend services using C# and .NET Core 9.

Implement efficient data access layers using LINQ, Dapper, and Entity Framework.

Design and maintain RESTful APIs ensuring security, scalability, and performance.

Work with MySQL and PostgreSQL databases, ensuring optimized queries and database integrity.

Code Quality and Best Practices

Design, implement, and maintain comprehensive test suites, including unit, integration, and E2E tests.

Utilize tools such as Newman, Playwright, Cypress, or similar to ensure high test coverage and application reliability.

Perform code reviews and provide constructive feedback to maintain high-quality standards.

Collaboration and Agile Development

Work closely with front-end developers to design efficient APIs and improve system interactions.

Participate in sprint planning, stand-ups, and retrospectives.

Mentor and support junior developers in the team.

DevOps and Deployment

Use Docker to containerize and deploy backend services efficiently.

Work with CI / CD pipelines to automate build, test, and deployment processes.

Monitor application performance, troubleshoot issues, and implement improvements.

Ensure security best practices are followed in backend implementations.

Stay up to date with the latest advancements in backend technologies and industry standards.

Fluent in English language. Interview will be conducted in English.

A minimum of 5 years of experience in backend development.

Proven experience in developing and maintaining scalable backend services.

Hands-on experience with LINQ, Dapper, and Entity Framework in production environments.

Demonstrated experience in writing and maintaining unit, integration, and E2E tests.

Familiarity with Agile methodologies and DevOps practices (desirable)

Strong proficiency in C# and .NET Core 7 / 8 or 9. Experience with LINQ, Dapper, and Entity Framework.

Solid understanding of SOLID principles, Clean Architecture, Test-Driven Development (TDD), and Domain-Driven Design (DDD)

Proven experience with automated testing frameworks such as Newman, Playwright, Cypress, or similar.

Experience with MySQL and PostgreSQL database design and optimization.

Proficiency in containerization using Docker.

30 min - Teams meeting with our Hiring Manager to learn more about the project, the role.

Remote work : 3 days at home

Summer schedule on Fridays : Start early your weekends

Private Medical Insurance (Adeslas)