Senior React UI Developer – Onsite in Pittsburgh, PA

Location: Pittsburgh, PA
Work Arrangement: Onsite five days per week
Employment Type: Full-time or W-2 contract employment with Trilogy NextGen
Duration: Initial 12+ month engagement with strong potential for long-term extension
C2C: Not available
Visa Sponsorship: Visa transfers will be considered with Premium Processing

Position Overview

Trilogy NextGen is seeking an experienced Senior React UI Developer to support one of our long-standing financial-services clients in Pittsburgh, Pennsylvania.

This is a hands-on development role focused on designing and building modern, responsive, and scalable web applications using React and related front-end technologies. The selected candidate will work closely with product owners, UX designers, architects, API developers, and other engineering teams to deliver high-quality user experiences for enterprise applications.

This position requires working onsite in Pittsburgh five days per week. Remote and hybrid arrangements are not available.

The successful candidate must become a direct employee of Trilogy NextGen. We will not respond to or entertain C2C, third-party consulting, subcontracting, or agency submissions. Trilogy NextGen will consider qualified candidates requiring a visa transfer and will use Premium Processing for eligible petitions.

Key Responsibilities

• Design, develop, test, and maintain complex user interfaces using React.

• Build reusable, maintainable, and scalable front-end components.

• Translate UX designs and business requirements into responsive, accessible web applications.

• Integrate user interfaces with RESTful APIs and enterprise back-end services.

• Collaborate with architects and engineering teams on application design and technical standards.

• Improve application performance, usability, reliability, and maintainability.

• Participate in code reviews, technical design discussions, sprint planning, and Agile ceremonies.

• Develop unit, integration, and automated front-end tests.

• Troubleshoot and resolve complex application and production issues.

• Mentor developers and promote front-end development best practices.

• Follow enterprise security, accessibility, coding, and release-management standards.

• Work directly with client stakeholders and cross-functional technology teams.

Required Qualifications

• 7+ years of professional front-end or UI development experience.

• 5+ years of hands-on React development experience.

• Strong experience with JavaScript and TypeScript.

• Advanced knowledge of React concepts, including components, hooks, state management, routing, and reusable design patterns.

• Experience with Redux, Redux Toolkit, Context API, Zustand, or another modern state-management framework.

• Strong proficiency with HTML5, CSS3, responsive design, and modern CSS frameworks.

• Experience integrating front-end applications with REST APIs.

• Experience with front-end testing tools such as Jest, React Testing Library, Cypress, or Playwright.

• Strong understanding of browser behavior, performance optimization, debugging, and cross-browser compatibility.

• Experience using Git and modern CI/CD development practices.

• Experience working in Agile or Scrum delivery environments.

• Strong analytical, troubleshooting, communication, and collaboration skills.

• Ability and willingness to work onsite in Pittsburgh, PA, five days per week.

Preferred Qualifications

• Financial-services, banking, payments, or other regulated-industry experience is preferred but not required.

• Experience developing large-scale enterprise applications.

• Experience with Material UI, Tailwind CSS, Bootstrap, or similar UI frameworks.

• Familiarity with micro-frontend architecture.

• Experience with Next.js.

• Experience with Node.js or broader full-stack development.

• Familiarity with cloud platforms such as AWS, Azure, or Google Cloud.

• Understanding of web accessibility standards, including WCAG and ARIA.

• Experience with application-security practices, secure coding, and regulated environments.

• Experience working with design systems and component libraries.

Employment and Visa Information

• This position is available only through direct employment with Trilogy NextGen.

• We will not respond to or entertain C2C, third-party consulting, subcontracting, or agency submissions.

• Candidates must be able to work onsite in Pittsburgh five days per week.

• Trilogy NextGen will consider qualified candidates requiring an eligible employment-based visa transfer.

• Premium Processing will be used for eligible visa-transfer petitions.

• Candidates must currently be authorized to work in the United States or be eligible for an employment-based visa transfer.

About the Engagement

Trilogy NextGen has an established, long-term relationship with this financial-services client. Although the initial engagement is expected to be at least 12 months, the contract structure allows the assignment to continue well beyond the initial term based on performance, project needs, and client approval.

About Trilogy NextGen

Trilogy NextGen provides technology consulting, engineering, and digital-transformation services to enterprise clients. Our teams work alongside client stakeholders to deliver scalable solutions across application development, data, cloud, automation, infrastructure, and emerging technologies.

Applicants must be willing to work onsite in Pittsburgh, PA, five days per week. Remote, hybrid, and C2C arrangements are not available. We will not respond to C2C or third-party submissions.