Senior Frontend Developer – React & TypeScript

Checkpayee; United States; Remote; USD 66,000 - 89,000; Full time

Benefits offered by this job

Remote work

Remote-first culture

Conference budget for professional dev

Job summary

Checkpayee is seeking an experienced frontend engineer to build accessible, responsive web interfaces for real-time payment verification products used by financial institutions and payment providers. You will collaborate with design, product, and backend teams to deliver dependable user experiences while maintaining frontend quality and performance across a modern design system.

You'll write maintainable, tested code with React and TypeScript, participate in code reviews, and share expertise to

Qualifications

• At least five years of professional React development experience.
• Strong command of TypeScript and modern JavaScript.
• Experience with responsive design, CSS, and React features such as hooks and context.
• Familiarity with frontend state management and testing tools such as Jest and React Testing Library.
• Understanding of web accessibility standards and experience collaborating with Git.

Responsibilities

• Develop and maintain web applications with React and TypeScript.
• Implement responsive, accessible interfaces that follow an established design system.
• Improve loading speed and interaction performance for real-time financial workflows.
• Write maintainable, documented, and testable code, using automated tests where appropriate.
• Collaborate with product, design, and backend colleagues on features and technical decisions.
• Share expertise with teammates and contribute to a collaborative engineering environment.

Skills

React development

TypeScript

JavaScript

Responsive design

CSS

Hooks and Context

Testing (Jest, RTL)

Accessibility

Git collaboration

Tools

Next.js

SvelteKit

Design systems

Component libraries

Core Web Vitals

Backend APIs

Application monitoring tools

Job description

Role overview

Build accessible, responsive web interfaces for real-time payment verification products used by financial institutions and payment providers. You’ll work across design, product, and backend teams to turn fraud prevention capabilities into clear, dependable user experiences, while helping maintain frontend quality and performance.

Responsibilities

• Develop and maintain web applications with React and TypeScript.


• Implement responsive, accessible interfaces that follow an established design system.


• Improve loading speed and interaction performance for real-time financial workflows.


• Write maintainable, documented, and testable code, using automated tests where appropriate.


• Collaborate with product, design, and backend colleagues on features and technical decisions.


• Share expertise with teammates and contribute to a collaborative engineering environment.

Requirements

• At least five years of professional React development experience.


• Strong command of TypeScript and modern JavaScript.


• Experience with responsive design, CSS, and React features such as hooks and context.


• Familiarity with frontend state management and testing tools such as Jest and React Testing Library.


• Understanding of web accessibility standards and experience collaborating with Git.

Nice to have

Experience with Next.js or SvelteKit, payment or fintech products, design systems, component libraries, Core Web Vitals, backend APIs, or application monitoring tools.

Benefits and work setup

• Full-time role with remote work available or a Hamburg, Germany location.


• The listed salary range is €60,000–€80,000.


• The team describes a remote-first culture with flexible hours, an international and collaborative working environment, and a professional development budget with conference support.