Senior Backend Developer

il y a 3 semaines

Paris, France KAROS MOBILITY Temps plein
**Are you passionate about backend development and data?** Join Karos to help optimize our technical platform, supporting the growth of carpooling and our expansion into new regions and countries. Your mission will be twofold: * **Ensure a highly reliable carpooling service** that remains fast and responsive, even under increasing usage volumes. * **Contribute to feature development** to enhance the experience for both users and our B2B clients, including enterprises and local authorities. You will be part of the **Web & Data team**, working on the core components of our system in close collaboration with the Mobile and Data Science teams. You'll develop new backend features for our Mobile and Web products while improving existing codebases in terms of structure and performance. You'll work alongside three other senior backend developers to tackle these challenges. In all your work, you'll keep a strong focus on performance and quality. **What we’re looking for in you:** * You are **autonomous** and enjoy working on diverse projects. * You have experience developing in **complex, existing systems**. You can dive into third-party code, analyze it, and quickly understand how it works. * You are **motivated by technical challenges** but also care deeply about product impact. You aim to ensure that your work meets the expectations of other teams and, most importantly, the needs of our users.
* Interview with the CTO * Technical interview with backend developers * Interview with our Chief Product officer * A Fit interview featuring our traditional 3x2 to get to know the team **Additional Information** ?? * **Alan health insurance** * A **Swile card** with Karos covering 60% of the cost * Karos offers the **sustainable mobility package** * A genuinely **awesome team** * **Centrally located offices in Paris**, fully accessible to individuals with reduced mobility ***♀️♂️* Ladies, we know that many women do not apply if they do not have all the listed skills, so take the leap Gentlemen, we are also looking forward to your applications.**
* **Expert proficiency in Python**, with solid experience in development tools and environments * **Rigorous**, with a collaborative mindset and familiarity with **code reviews**. * Experience in **REST API development** and ensuring reliability with **unit testing**. * Hands-on experience in **Cloud environments** (GCP, AWS, Azure) and **message brokers** (e.g., RabbitMQ, Kafka, Pub/Sub). * Strong expertise in **relational databases**, including query optimization in high-volume environments. * Good understanding of **software architecture patterns** and familiarity with **Django/Django REST Framework**. * Knowledge of **CI/CD tools** (e.g., Terraform, GitHub CI) and experience improving system **monitoring and observability**. * Awareness of **security best practices** and integration of **external APIs** (e.g., SSO, payment providers). **Your plus:** * Karos’ ambition motivates you, and you are excited about making short distance carpooling a new form of public transport. ??

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