Senior React Developer jobs in United States
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CGI · 2 weeks ago

Senior React Developer

CGI is seeking a highly skilled Senior React Developer to join their consulting team and support a client-facing digital initiative. This hands-on role focuses on building high-quality, reusable, and performant user interfaces using React, while collaborating closely with frontend architects, backend engineers, and UX teams.

AnalyticsApplication Performance ManagementBusiness IntelligenceConsultingCyber SecurityFinanceInformation TechnologyTechnical Support
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H1B Sponsor Likelynote

Responsibilities

Develop and maintain reusable, performant UI components using React
Implement responsive, accessible user interfaces aligned with design standards
Collaborate with frontend architects to implement defined architecture patterns and best practices
Integrate frontend components with back-end APIs and services
Participate in code reviews, sprint planning, and agile ceremonies
Optimize applications for performance, scalability, and maintainability
Troubleshoot and resolve frontend defects and performance issues
Contribute to technical documentation and knowledge sharing

Qualification

ReactJavaScript (ES6+)HTMLCSSRESTful APIsGraphQL APIsState managementComponent-based architectureTypeScriptSSR frameworksMicro-frontend architectureAccessibility (WCAG)Frontend performance optimizationConsulting experience

Required

6–7+ years of hands-on React development experience
Strong proficiency in JavaScript (ES6+), HTML, and CSS
Experience building component-based architectures and shared UI libraries
Experience integrating frontend applications with RESTful and/or GraphQL APIs
Solid understanding of state management (e.g., Redux, Context API, or equivalent)
Experience with modern frontend tooling and workflows
Strong attention to detail and commitment to code quality

Preferred

Experience with TypeScript
Familiarity with SSR frameworks (e.g., Next.js)
Experience working in micro-fronted or modular frontend architecture
Knowledge of accessibility (WCAG) and frontend performance optimization
Prior experience in consulting or client-facing roles

Benefits

Competitive compensation
Comprehensive insurance options
Matching contributions through the 401(k) plan and the share purchase plan
Paid time off for vacation, holidays, and sick time
Paid parental leave
Learning opportunities and tuition assistance
Wellness and Well-being programs

Company

CGI is an IT and business consulting services firm that offers consulting, cyber security, cloud, and IT services.

H1B Sponsorship

CGI has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (775)
2024 (762)
2023 (795)
2022 (940)
2021 (846)
2020 (582)

Funding

Current Stage
Public Company
Total Funding
$1.2B
2025-03-12Post Ipo Debt· $650M
2024-09-03Post Ipo Debt· $550.87M
1998-10-06IPO

Leadership Team

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François Boulanger
President and Chief Executive Officer at CGI
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Raymond McMann
VP, Global Oil & Gas Industry
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Company data provided by crunchbase