Senior Python Engineer, AI

Overview In this role you will design and maintain scalable Python-based backend services powering Nexpart, a global B2B automotive parts marketplace. You will collaborate with product and engineering partners to deliver reliable, high-performance solutions and to advance AI-enabled features. You’ll build and integrate APIs and microservices, improve observability and system resiliency, and contribute to technical standards. This position offers the chance to shape platform capabilities at scale and leverage AI/LLM to boost productivity and product quality. Compensation / Benefitsbase pay 118,800–205,600bonus opportunityrestricted stock units (RSUs)medical benefits401(k) eligibilitypaid time off (PTO) and parental leave ResponsibilitiesDesign and implement Python-based applications and services that power core workflowsDevelop scalable APIs and microservices for internal/external useOwn backend architecture for reliability, scalability, and maintainabilityEnhance performance with distributed patterns (caching, queues, event-driven design)Implement observability and troubleshoot production issuesParticipate in code reviews and contribute to engineering standardsCollaborate with cross-functional teams to deliver quality releasesCreate/document system and technical guidanceLeverage AI tools to improve productivity and delivery speedBuild/productionalize LLM-enabled features and AI-driven workflowsDesign orchestration for multi-step AI tasksImplement RAG-style retrieval patterns and evaluation frameworksEnsure responsible AI practices and governance Key requirements5+ years of professional Python development in productionStrong experience with asynchronous, API-driven microservices (FastAPI, asyncio)Solid understanding of scalable backend architectures and service integrationsExperience with distributed systems patterns (queues, caching, pub/sub, background processing)Strong understanding of REST APIs, authN/authZ, and secure designExperience with CI/CD and containerized deploymentsProficiency with Git and modern version control workflowsExcellent English communication and cross-functional collaboration skillsCollaborative mindsetStrong communicationProblem-solving and ownershipPythonFastAPIasyncio