Role Overview At Rehire, we are partnering with an international technology company specializing in cloud, data, and AI-driven digital solutions in the search for a Senior Frontend Developer – AI Native Data. We are looking for a highly experienced Frontend Developer with strong expertise in React, TypeScript, D3.js, and data visualization, capable of building interactive, scalable, and AI-powered user interfaces. The idóneo candidate combines advanced frontend engineering skills with experience developing complex data-driven applications and an interest in LLM-powered interfaces, conversational AI, and agentic workflows.

Key Responsibilities
* Develop and maintain frontend applications using React, TypeScript, and modern JavaScript.
* Build interactive features for data explorers, topic pages, and natural-language search interfaces.
* Design and implement advanced data visualizations using D3.js and SVG, including maps, timelines, scatter plots, and ranking tables.
* Develop interactive visualization features such as zooming, brushing, tooltips, and linked charts.
* Build AI-native user experiences, including conversational interfaces, streaming LLM responses, and AI-powered search.
* Create agent workflow interfaces that display execution steps, tool calls, progress indicators, and cited sources.
* Implement generative UI components that dynamically render charts, tables, and other interactive elements based on AI-generated outputs.
* Integrate frontend applications with backend services through REST APIs, Flask, and Mixer APIs.
* Manage application state,



including URL-based state serialization for shareable views.
* Ensure applications are responsive, accessible, and optimized for performance.
* Develop and maintain automated tests to ensure code quality and reliability.
* Collaborate with engineering teams through GitHub pull requests, code reviews, and development best practices. Requirements
* 8–12 years of professional experience in Frontend Development.
* Advanced proficiency in React.js, TypeScript, and JavaScript (ES6+).
* Strong experience with React Hooks, state management, and component architecture.
* Experience building complex, production-grade frontend applications.
* Strong knowledge of HTML, CSS/SCSS, Flexbox, Grid, and responsive design.
* Hands-on experience with D3.js and SVG for interactive data visualization.
* Experience developing dashboards, charts, or data exploration interfaces.
* Experience integrating frontend applications with REST/JSON APIs.
* Strong understanding of client-side state management and URL serialization.
* Knowledge of web accessibility standards, including WCAG.
* Experience with Jest, React Testing Library, and frontend testing practices.




* Proficiency with Git, GitHub, and pull request workflows.
* Professional English communication skills.
* Availability to work 100% onsite in Guadalajara, Mexico, five days per week. Nice to have
* Experience developing LLM-powered applications, including AI chat interfaces, copilots, conversational search, or AI agents.
* Knowledge of Agentic UX, including human-in-the-loop approvals, multi-step workflows, progress tracking, and cited AI responses.
* Experience with Gemini API, Google Agent Development Kit (ADK), or Model Context Protocol (MCP).
* Familiarity with prompt engineering and evaluating AI feature quality, latency, and user feedback.
* Experience with Python, Flask, gRPC, or Protocol Buffers .
Knowledge of knowledge graphs, Schema.org, JSON-LD, RDF, or related technologies.
* Experience with Webpack, npm, yarn, or Bazel.
* Familiarity with Percy, end-to-end testing, and automated testing environments.
* Experience with Docker, Google Cloud Platform (GCP), or Google Kubernetes Engine (GKE).
* Contributions to open-source projects. About the Position
*

Location:
Mexico, Guadalajara.
* Work Model: 100% Onsite.
* Engagement Type: Contractor.
* Contract Duration: 12 months. Opportunity to work on international cloud security and AI-driven cybersecurity initiatives. Collaboration with senior engineers, architects, and distributed technical teams. Exposure to AI security agents, security automation, and modern cloud environments.

📌 Senior Frontend Developer (España)
🏢 Rehire
📍 España