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Senior Backend Engineer

Earnix - Paris, Île-de-France, France - In-office

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Earnix is seeking a Senior Backend Engineer to join its Engineering team, reporting to the Group Lead for Agentic AI. You will work alongside AI Product Owners, Architects, and LLMOps to design and deliver technical solutions that leverage large language models and agentic AI capabilities. In this role, you will design, develop, and document secure, scalable backend services and APIs for Earnix's intelligent decisioning platform. You'll build and maintain microservices-based systems with high availability and performance requirements, collaborating with cross-functional teams to ensure architectural consistency, code quality, and deployment best practices. A key focus will be integrating AI capabilities—including LLMs and agentic tools—into backend workflows and services. You'll apply modern software development practices including test-driven development, clean code principles, and continuous integration. You bring 6+ years of backend software engineering experience with strong proficiency in TypeScript and/or Python. You have hands-on experience designing and deploying microservices in cloud environments (Microsoft Azure or AWS), with solid knowledge of containerization and orchestration (Docker, Kubernetes, ArgoCD). Familiarity with AI agent frameworks such as LangGraph or MCP is preferred, along with demonstrated knowledge of integrating LLMs and AI tools into backend systems. You understand CI/CD pipelines, security best practices, and performance optimization techniques. You excel at communicating and collaborating with technical and product stakeholders, take a proactive approach to problem-solving, and are adaptable and eager to continuously improve your skills. You have strong project management capabilities and experience working with Kanban methodology and collaborative code review processes. Earnix is a mission-critical cloud platform for intelligent decisioning in pricing, rating, underwriting, and product personalization, serving global insurers and banks since 2001 across 35+ countries.

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