Senior React Developer

Position Description

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 on a client site in Denver, CO area (Centennial, CO).

• 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

• 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 Graph
  
  QL 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

• Experience with Type Script
• 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

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. A reasonable estimate of the current range for this role in the U.S. is $98,500.00 - $.

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 .

• Angular
• Front End Development
• Front‑end Architecture

Together, as owners, let’s turn meaningful insights into action.

Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because… You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.

Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise. You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well‑being and provide you with opportunities to deepen your skills and broaden your horizons.

Come join our team—one of the largest IT and business consulting services firms in the world.

Qualified applicants will receive consideration for employment without regard to their race, ethnicity, ancestry, color, sex, religion, creed, age, national origin, citizenship status, disability, pregnancy, medical condition, military and veteran status, marital status, sexual orientation or perceived sexual orientation, gender, gender identity, and gender expression, familial status or responsibilities, reproductive health decisions, political…