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19 days ago
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Requirements and responsibilities
We're looking for a Backend Developer to join our team and contribute to building scalable APIs and services that power our language learning experience. You'll work on features ranging from exercise generation systems to user progression tracking, content management, and third-party integrations.The RoleWe're looking for a Backend Developer to join our team and contribute to building scalable APIs and services that power our language learning experience. You'll work on features ranging from exercise generation systems to user progression tracking, content management, and third-party integrations.What You'll DoDesign and develop RESTful APIs for our mobile and web applicationsBuild and maintain modular content systems with configurable schemas and validation rulesWork with complex MongoDB schemasDevelop content processing pipelines including lyric analysis, translations, and synchronization featuresImplement content management workflows with approval systems for creatorsOptimize database queries and indexes for performance at scaleIntegrate with third-party services (music APIs, payment providers, AI translation models)Collaborate with frontend and mobile developers to deliver seamless user experiencesRequirements3+ years of experience in backend developmentStrong proficiency with Node.jsExtensive experience with MongoDB (aggregations, indexing, schema design)Experience building and documenting RESTful APIsUnderstanding of authentication and authorization patternsFamiliarity with queue systems and background job processingGood understanding of data modeling for complex relationshipsExperience with Git and collaborative development workflowsNice to HaveExperience with AI/ML integrations (translation models, speech processing)Familiarity with subscription and payment systemsExperience with mobile app backendsMulti-language/internationalization experienceWhat We OfferOpportunity to impact language learning for hundreds of thousands of usersWork on a unique product combining music and educationCollaborative and growing team environment
Optionally, you can add more information later (benefits, pre-screening questions, etc.)