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# Senior Full-Stack Engineer - Crm

- **Company:** Preply Inc.
- **Location:** Barcelona, Spain
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Django Web Framework, Python (Programming Language), Systems Architecture, TypeScript, Web Applications, ReactJS, Backend, Agentic-AI, Data Analytics, Front End Software Development
- **Published:** October 8, 2026
- **Apply:** https://www.buscojobs.com.es/senior-full-stack-engineer-crm-en-barcelona-ID-375102349

## About the Role

Requisitos principalesFull-stack expertise across backend and frontendExperience delivering internal tooling or automation that others rely onAbility to produce production-ready email and templating work with understanding of rendering constraintsAI expertise with hands-on use of Agentic AI and ability to influence architecture and safety netsExperience designing large-scale web applications and APIs with scalable patternsDemonstrated technical leadership and influence on architectural decisionsProduct-minded with ability to translate business challenges into scalable technical solutionsProactive problem-solving in ambiguous contexts and independent initiativeOwnership and accountability with track record from concept to deliveryStrong collaboration and communication across engineering, product, design, and data; English level B2+Operational excellence with observability and on-call willingnesscollaborationcommunicationmentorshipPythonDjangoReact

## Description

OverviewIn this role you will help shape Preply's CRM platform and automation, driving impactful communication with millions of learners and tutors.You will contribute across backend, frontend, and data-driven experimentation to scale personalized experiences.The role blends hands-on delivery with technical leadership to improve reliability, performance, and product outcomes.Join a cross-functional team to push AI-enhanced workflows and cross-market optimization at global scale.You will be a key driver of engineering excellence in a fast-growing, data-informed environment.ResponsabilidadesEvolve the CRM platform and automation, implementing AI-assisted workflows and templating to speed and reliability of campaign deliveryDevelop backend features in Python/Django and integrate with third-party vendors and the CRM/communications stackBuild frontend experiences in React/TypeScript and contribute to experimentation frameworks and best practicesLead complex initiatives from discovery to deployment, owning solutions over their lifecycleRaise engineering standards through reviews, mentorship, and adoption of best practicesPartner with Product, Data, and UX to validate hypotheses and maximize customer value via experimentationShape system architecture for scalability, reliability, maintainability, and developer productivityNavigate trade-offs, align technical investments with business goals, and drive successful deliveryInfluence technical direction beyond the team and foster cross-functional collaborationPursue excellence through craftsmanship, curiosity, and helping others growRequisitos principalesFull-stack expertise across backend and frontendExperience delivering internal tooling or automation that others rely onAbility to produce production-ready email and templating work with understanding of rendering constraintsAI expertise with hands-on use of Agentic AI and ability to influence architecture and safety netsExperience designing large-scale web applications and APIs with scalable patternsDemonstrated technical leadership and influence on architectural decisionsProduct-minded with ability to translate business challenges into scalable technical solutionsProactive problem-solving in ambiguous contexts and independent initiativeOwnership and accountability with track record from concept to deliveryStrong collaboration and communication across engineering, product, design, and data; English level B2+Operational excellence with observability and on-call willingnesscollaborationcommunicationmentorshipPythonDjangoReact