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# Senior/Lead Back End Engineer

- **Company:** RemoFirst
- **Location:** France (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Amazon Web Services, Unit Testing, Cloud Computing, Code Review, Relational Databases, Software Debugging, Software Design Patterns, Distributed Systems, Django Web Framework, Python (Programming Language), PostgreSQL, MySQL, NoSQL, Object-Oriented Software Development, Migration Manager, Test-Driven Development (TDD), Flask (Web Framework), Spring-boot, Reliability of Systems, Backend, Git, Fastapi, Integration Tests, Solid Principles, Restful APIs, Web Api, Microservices
- **Published:** May 31, 2026
- **Apply:** https://fr.indeed.com/viewjob?jk=de5da1d857471964

## About the Role

Do you have experience in Unit testing?, * 5+ years of backend software development experience

 * Strong professional experience with Python (Django, FastAPI, Flask, or similar frameworks)
 * Strong professional experience with Java, preferably using Spring Boot.
 * Solid understanding of object-oriented design, SOLID principles, and design patterns
 * Experience designing and consuming RESTful APIs
 * Experience with relational databases (PostgreSQL, MySQL); exposure to NoSQL databases is a plus
 * Familiarity with unit testing, integration testing, and test-driven development (TDD)
 * Experience with CI/CD pipelines, Git, and modern development workflows
 * Understanding of microservices architecture and distributed systems
 * Experience working with cloud platforms (AWS preferred)
 * Strong problem-solving skills and attention to performance and scalability
 * Excellent written and verbal communication skills in English

## Description

* Design, develop, and maintain backend services using Python and Java.
 * Support and contribute to the gradual migration from Python-based services to Java, ensuring stability and continuityBuild and maintain RESTful APIs and backend integrations.
 * Participate in system design and architectural discussions, especially around service boundaries and migration strategy.
 * Work with distributed systems and microservices.
 * Integrate with third-party services and external APIs.
 * Write clean, well-tested, and maintainable code following best practices.
 * Participate in code reviews, technical discussions, and knowledge sharing.
 * Debug production issues and improve system reliability, observability, and performance.
 * Collaborate effectively with cross-functional teams across time zones.


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