Location: Fully remote, EMEA / flexible timezone Start date: ASAP Languages: Fluent English is mandatory Industry: AI / Data Infrastructure / B2B SaaS About the Company Pragmatike is recruiting on behalf of an early-stage startup building a distributed AI data infrastructure platform .The company provides real-world training data to AI companies through a global network of 500,000+ contributors across 150+ countries and 100+ languages.The startup owns the full end-to-end pipeline: collection, automated processing, human-in-the-loop QA, and delivery to top-tier AI labs and technology companies.The focus is on building scalable, AI-native pipelines capable of delivering multimodal datasets—audio, image, video, and structured data—at global scale.The product is operational and validated.The current priority is scaling the infrastructure, improving AI-powered QA pipelines, and building reliable contributor and client-facing platforms .The team is fast-moving, product-driven, and values high ownership and technical excellence .Your Responsibilities Design and maintain FastAPI backend services powering the data collection and delivery pipeline Build and iterate React interfaces for internal teams, contributors, and clients Architect AI-powered pipelines for quality assurance, classification, and dataset delivery Own end-to-end feature delivery : backend logic, database schema, frontend interface, deployment Ensure reliability, performance, and observability of async data processing pipelines Collaborate closely with ML engineers, DevOps, and the data team to integrate AI systems into production Set standards and best practices for AI-augmented engineering workflows Contribute to internal tooling that accelerates team velocity and maintains production-grade quality What You Bring 3+ years of professional full stack engineering experience in production environments Strong Python skills and hands-on experience building production APIs with FastAPI Solid React experience,