Sr. React Developer

Altimetrik; México; On-site; MXN 800,000 - 1,050,000; Full time

Job summary

Altimetrik is looking for a Sr. React.Js Developer to craft scalable frontend experiences for data-heavy platforms.

You will own features end-to-end, collaborate with Product and UX, and guide quality through automated testing and robust interfaces. The role demands strong React and TypeScript expertise, mastery of state management, and the ability to work in small, autonomous teams while communicating clearly in English.

Qualifications

• 6+ years of professional experience building production-grade frontend applications.
• Advanced expertise in React and TypeScript.
• Strong experience with application state management, complex forms, data-heavy interfaces, and REST API integrations.
• Solid knowledge of automated testing and frontend quality practices.
• Experience collaborating directly with Product and UX/UI Design teams.
• Proven ability to shape user experiences, not only implement predefined designs.
• Ability to take ownership of a product area and make sustainable, long-term technical decisions.
• Practical experience using current AI and agentic coding tools.
• Ability to critically review AI-generated code and take full responsibility for the final implementation.
• Experience working effectively in small, autonomous, and collaborative teams.
• Strong communication skills and advanced English.

Responsibilities

• Build and enhance the agent, admin, and borrower portals.
• Develop intuitive interfaces for complex and data-intensive financial information.
• Solve advanced frontend challenges involving application state, complex forms, data tables, and API integrations.
• Collaborate directly with Product and Design to define and implement new features.
• Maintain and extend the shared component library, design tokens, and reusable UI patterns.
• Integrate frontend applications with REST APIs using OpenAPI-generated types and data-fetching hooks.
• Take end-to-end ownership of frontend features and product areas, including their long-term evolution.
• Improve frontend architecture, automated testing, build tools, and developer experience.
• Provide technical guidance, unblock other engineers, and contribute to decisions that extend beyond individual sprints.
• Use AI and agentic coding tools while maintaining full ownership of code quality, security, and maintainability.

Skills

React.js

TypeScript

State Management

REST APIs

Automated Testing

OpenAPI

Tools

OpenAPI

Job description

Altimetrik is a leading digital business enablement company. Our agile professionals and engineering teams craft innovative solutions that drive transformation and growth for businesses worldwide.

We are looking for a Sr. React.Js Developer with strong expertise in React and TypeScript to build scalable, intuitive, and reliable digital experiences. This role requires a combination of technical excellence, product thinking, UX judgment, and end-to-end ownership.

Requirements:

• 6+ years of professional experience building production-grade frontend applications.
• Advanced expertise in React and TypeScript.
• Strong experience with application state management, complex forms, data-heavy interfaces, and REST API integrations.
• Solid knowledge of automated testing and frontend quality practices.
• Experience collaborating directly with Product and UX/UI Design teams.
• Proven ability to shape user experiences, not only implement predefined designs.
• Ability to take ownership of a product area and make sustainable, long-term technical decisions.
• Practical experience using current AI and agentic coding tools.
• Ability to critically review AI-generated code and take full responsibility for the final implementation.
• Experience working effectively in small, autonomous, and collaborative teams.
• Strong communication skills and advanced English.

Main Responsibilities

• Build and enhance the agent, admin, and borrower portals.
• Develop intuitive interfaces for complex and data-intensive financial information.
• Solve advanced frontend challenges involving application state, complex forms, data tables, and API integrations.
• Collaborate directly with Product and Design to define and implement new features.
• Maintain and extend the shared component library, design tokens, and reusable UI patterns.
• Integrate frontend applications with REST APIs using OpenAPI-generated types and data-fetching hooks.
• Take end-to-end ownership of frontend features and product areas, including their long-term evolution.
• Improve frontend architecture, automated testing, build tools, and developer experience.
• Provide technical guidance, unblock other engineers, and contribute to decisions that extend beyond individual sprints.
• Use AI and agentic coding tools while maintaining full ownership of code quality, security, and maintainability.