Senior React Developer
About The Position
CGI is seeking a highly skilled Senior React Developer to join our consulting team and support a client-facing digital initiative. This is a hands-on role focused on building high-quality, reusable, and performant user interfaces using React, while collaborating closely with frontend architects, backend engineers, and UX teams. This role is located in on client site in Denver, CO area (Centennial, CO). How you'll make an impact . 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 What you'll bring . 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 Desired qualifications/non-essential skills required . 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 Other Information: CGI is required by law in some jurisdictions to include a reasonable estimate of the compensation range for this role. The determination of this range includes various factors not limited to skill set, level, experience, relevant training, and licensure and certifications. To support the ability to reward for merit-based performance, CGI typically does not hire individuals at or near the top of the range for their role. Compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range for this role in the U.S. is $98,500.00 - $172,400.00. CGI's benefits are offered to eligible professionals on their first day of employment to include: . 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 CGI Federal anticipates accepting applications for this position through 2026-02-06.
Requirements
- 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
Nice To Haves
- 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
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
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
Stand Out From the Crowd
Upload your resume and get instant feedback on how well it matches this job.
What This Job Offers
Job Type
Full-time
Career Level
Mid Level
Education Level
No Education Listed
Number of Employees
5,001-10,000 employees
