Senior Frontend Developer – AI Native Data

Rehire; Castilla-La Mancha; In loco; EUR 43.000 - 58.000; Tempo pieno

Descrizione del lavoro

ReHire, LLC, in Guadalajara, Mexico, is seeking a Senior Frontend Developer – AI Native Data to join an international technology company focused on cloud, data, and AI-driven digital solutions. You will build AI-enabled interfaces using React, TypeScript, and D3.js for data visualization.

The role emphasizes data-rich dashboards, interactive visuals, and scalable UI components, with a contract length of 12 months and onsite work five days per week.

Competenze

• 8–12 years of professional frontend experience.
• 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 WCAG accessibility standards.
• Experience with Jest and React Testing Library.
• Proficiency with Git, GitHub, and pull request workflows.
• Professional English communication skills.
• Availability to work 100% onsite in Guadalajara, Mexico, five days per week.

Mansioni

• 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 and AI-powered search.
• Create agent workflow interfaces displaying execution steps, tool calls, progress indicators, and cited sources.
• Implement generative UI components that render charts, tables, and other interactive elements based on AI 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 PRs and code reviews.

Conoscenze

Professional English communication

Strumenti

React.js

TypeScript

JavaScript (ES6+)

React Hooks

D3.js

SVG

REST APIs

JSON APIs

Jest

React Testing Library

Frontend testing practices

Git

GitHub

Web development tooling (Webpack, npm, yarn, Bazel)

Descrizione del lavoro

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 ideal 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.