Senior Front-End Engineer | Next.js, TypeScript, Secure UI

Qualco Group; Kentucky; Hybrid; USD 110,000 - 150,000; Full time

Benefits offered by this job

Competitive compensation

Hybrid work model

Private health insurance

Learning & development

Job summary

Quento Technologies S.A. seeks a Senior Front-End Engineer to design, build, and evolve secure, high-quality web apps using Next.js 15, React, and TypeScript. You will work with product, design, back-end, and platform teams to deliver scalable, accessible interfaces.

You will apply server-state management, MSAL authentication, and robust form validation with React Hook Form and Zod, while ensuring performance and cross-browser compatibility. English communication is essential.

Qualifications

• Minimum 5 years of professional front-end experience.
• Experience with Next.js 15 and modern React patterns.
• Hands-on with server-state management and API-driven apps.
• Authentication and authorization with MSAL.
• Strong component design, hooks, routing, and state management.
• Experience consuming REST APIs.
• Responsive design, accessibility, performance, and cross-browser compatibility.
• Git workflows and peer code reviews.
• Agile delivery environment.
• Excellent English communication.

Responsibilities

• Design, develop, and maintain production-ready web applications using Next.js 15, React, and TypeScript.
• Build reusable UI components and front-end modules for consistency and maintainability.
• Manage server state, caching, synchronization, and asynchronous data flows (TanStack Query).
• Implement secure authentication/authorization with MSAL.
• Create robust, accessible forms using React Hook Form with Zod.
• Translate UI/UX designs and business requirements into responsive interfaces (Tailwind).
• Integrate front-end with REST APIs and generated API clients with clear loading and error handling.
• Collaborate with product, design, back-end, and DevOps teams; participate in code reviews.
• Support automated build/deploy processes within Azure DevOps.

Skills

React

Next.js

TypeScript

MSAL

REST APIs

Tailwind

TanStack Query

React Hook Form

Zod

Git workflows

Agile

English communication

Authentication

Education

Bachelor's degree in IT/CS/Engineering

Tools

Azure DevOps

Job description

Quento Technologies S.A. seeks a Senior Front-End Engineer to design, build, and evolve secure, high-quality web apps using Next.js 15, React, and TypeScript. You will work with product, design, back-end, and platform teams to deliver scalable, accessible interfaces.

You will apply server-state management, MSAL authentication, and robust form validation with React Hook Form and Zod, while ensuring performance and cross-browser compatibility. English communication is essential.