Senior React Developer – Front End Engineer

Ole & Lena Digital; Las Vegas (NV); On-site; USD 140,000 - 170,000; Full time

Job summary

Ole & Lena Digital seeks a Senior React Developer in Las Vegas to join our onsite engineering team. You will craft modern web apps using React, TypeScript, and Cypress, collaborating across product, design, and backend teams.

The role emphasizes front-end excellence, reusable components, and robust testing. Proven React experience, strong JavaScript/HTML/CSS skills, and knowledge of modern workflows are essential for success.

Qualifications

• 5+ years of professional software development experience.
• 3+ years of hands-on React development.
• Strong proficiency in TypeScript, JavaScript, HTML5 and CSS3.
• Experience with modern React concepts (Hooks, Context API, state management).
• Strong experience with Cypress for automated testing.
• Experience consuming RESTful APIs and modern web services.
• Knowledge of responsive design and cross-browser compatibility.
• Familiarity with CI/CD pipelines and Git workflows.

Responsibilities

• Design, develop, and maintain scalable React/TypeScript web applications.
• Build reusable UI components and front-end libraries.
• Collaborate with product, design, and backend engineers on features.
• Write clean, maintainable, well-tested code following best practices.
• Develop and maintain end-to-end and integration tests with Cypress.
• Optimize apps for speed, performance, and scalability.
• Mentor junior developers and participate in code reviews.
• Define API contracts with backend teams.

Skills

React

TypeScript

Cypress

REST APIs

HTML5/CSS3

JavaScript (ES6+)

Git

Front-end architecture

Tools

Docker

Kubernetes

React Query

Redux

Git

Job description

We are seeking a highly skilled Senior React Developer to join our client's engineering team in Las Vegas, NV. The ideal candidate has deep expertise building modern web applications with React, TypeScript, and automated testing frameworks such as Cypress. This role requires strong front‑end engineering skills, a passion for exceptional user experiences, and the ability to collaborate effectively with cross‑functional teams. Experience with Java/Spring Boot on the backend is a strong plus.This is an onsite role, Monday through Friday, in Las Vegas, NV. Long-term engagement; FTE or contract.

RESPONSIBILITIES

• Design, develop, and maintain scalable, responsive web applications using 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 QUALIFICATIONS

• 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 including Hooks, Context API, and state management (Redux, Zustand, React Query, or similar).
• 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 and modern development workflows.
• Experience using Git and collaborative development practices.
• Strong problem‑solving and communication skills.

PREFERRED QUALIFICATIONS

• Backend service development with Java and Spring Boot.
• Experience with microservices architectures.
• Familiarity with cloud platforms such as Azure, AWS, or Google Cloud.
• Containerization with Docker and Kubernetes.
• Understanding of web application security best practices.
• Experience working in Agile/Scrum environments.

TECHNICAL SKILLS

• Required: React, TypeScript, JavaScript, Cypress, HTML5/CSS3, REST APIs, Git
• Nice to have: Java, Spring Boot, Azure/AWS, Docker, Kubernetes, React Query, Redux

WHAT SUCCESS LOOKS LIKE

• Delivering high‑quality, maintainable front‑end features.
• Ensuring comprehensive automated test coverage.
• Contributing to architectural decisions and technical excellence.
• Mentoring team members and driving best practices across the engineering organization.
• Collaborating effectively with backend teams to deliver end‑to‑end solutions.