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This job expired on 30/10/2026. It no longer accepts applications.
Senior React Developer – Front End Engineer
Ontrac Solutions · Las Vegas
Job description
About the role
We are seeking a highly skilled Senior React Developer to join our client’s engineering team in Las Vegas. The role focuses on building modern, responsive web applications using React, TypeScript, and automated testing with Cypress.
Key responsibilities
- Design, develop, and maintain scalable web applications with React and TypeScript.
- Build reusable UI components and front‑end libraries for future use.
- Collaborate with product managers, designers, and backend engineers to implement new features.
- Write clean, maintainable, well‑tested code following industry best practices.
- Develop and maintain end‑to‑end and integration tests using Cypress.
- Optimize applications for maximum speed, performance, and scalability.
- Participate in code reviews and mentor junior developers.
- Troubleshoot and resolve complex technical issues.
- Contribute to architecture decisions and technical roadmap discussions.
- Work closely with backend teams to define API contracts and integrations.
Required profile
- 5+ years of professional software development experience.
- 3+ years of hands‑on experience developing applications with React.
- Strong proficiency in TypeScript, JavaScript (ES6+), HTML5, and CSS3.
- Experience with modern React concepts such as Hooks, Context API, and state management (Redux, Zustand, React Query, etc.).
- Strong experience writing automated tests using Cypress.
- Experience consuming RESTful APIs and working with modern web services.
- Knowledge of responsive design and cross‑browser compatibility.
- Familiarity with CI/CD pipelines, Git, and collaborative development practices.
Required skills
- React
- TypeScript
- JavaScript
- Cypress
- HTML5
- CSS3
- REST APIs
- Git
- Java
- Spring Boot
- Azure
- AWS
- Docker
- Kubernetes
- React Query
- Redux
- Zustand
- CI/CD
- Microservices
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Ontrac Solutions
Las Vegas
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