Senior Backend & Frontend Engineer

Posted about 1 month agoViewed
ParisFull-TimeSoftware Development
Company:The Flex
Location:Paris
Languages:English
Seniority level:Senior
Skills:
AWSBackend DevelopmentLeadershipNode.jsPythonDynamoDBFrontend DevelopmentSoftware ArchitectureTypeScriptFastAPIReactMicroservicesMentoring
Requirements:
Strong experience with Node.js / TypeScript, Python (FastAPI), or equivalent backend frameworks Solid expertise in React or another modern frontend framework Deep familiarity with AWS, especially serverless (Lambda, DynamoDB, EventBridge, SQS) Strong understanding of distributed systems, microservices, and event-driven architecture Experience building scalable, production-grade APIs and real-time systems A passion for automation, intelligent workflows, and simplifying complex processes A builder’s mindset — autonomous, fast, pragmatic, and product-oriented The ability to lead initiatives and deliver high-quality software end-to-end
Responsibilities:
Architect Core Services (APIs, data pipelines, backend services) Build Automation at Scale (microservices, event-driven workflows) Own the Frontend Experience (fast, clean, intuitive interfaces) Engineer for Reliability (fault-tolerant, observable systems) Integrate the Ecosystem (connect to third-party APIs) Lead With Impact (drive technical decisions, mentor engineers, define standards)
About the Company
The Flex
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