Sr. Full Stack Engineer (Front End Focused) - Hybrid NYC

Randstad

Location: New York, New York (Hybrid)

Employment Type: W2

Candidate Pay Rate: $56

Experience: 8+ years

We are seeking an experienced Senior Full Stack Engineer with a strong focus on Frontend Architecture to design, build, and maintain scalable web and mobile applications.
The ideal candidate brings deep expertise in modern frontend frameworks (React, Angular), solid full-stack integration capabilities (C# .NET, Python APIs), and experience delivering responsive, secure, and highly accessible user experiences.
This role will establish frontend standards, develop reusable UI frameworks, and ensure seamless integration with our enterprise backend services and identity systems.

Lead frontend technical design, establish development standards, build reusable component libraries, and promote UI/UX best practices.
Develop responsive single-page applications (SPAs) and integrate them seamlessly with backend microservices and RESTful APIs.
Support cross-platform or native mobile application development to deliver a cohesive experience across web and mobile surfaces.
Optimize applications for maximum speed, scalability, cross-browser compatibility, and strict WCAG accessibility compliance.
Implement and maintain robust frontend security measures, including modern token-based authentication (OAuth2/OIDC, JWT) and secure session management.
Partner closely with UX/UI designers, product owners, and backend teams. Mentor junior and mid-level developers through constructive code reviews.

8+ years of professional software development experience, with a proven track record of leading frontend architecture for enterprise web applications.
Deep, advanced knowledge of TypeScript, React, and/or Angular, alongside modern HTML5, CSS3, and SCSS.
Strong experience consuming and integrating with backend APIs built on C# .NET (.NET Core/.NET 8+) or Python.
Experience with Git workflows, package managers (npm/yarn), and frontend build tools (Webpack, Vite).
Deep experience implementing and enforcing strict WCAG accessibility compliance in web applications.
Practical experience managing frontend session states, handling token lifecycles (silent refresh, JWT management), and integrating with enterprise Identity Providers (Active Directory, Okta, etc.).
Experience working within collaborative, Agile/Scrum environments.

Experience with native mobile development (Swift for iOS / Kotlin for Android) OR cross-platform mobile frameworks (React Native, MAUI, Flutter).
Familiarity supporting legacy web patterns (e.g., .NET Framework 4.8.1 / MVC) during modernization phases.
Experience with CI/CD pipelines (Azure DevOps, GitHub Actions) and container environments (Docker).
Prior experience in a utility, energy, or highly regulated corporate environment.

To apply for this exciting opportunity, please contact:

Recruiter Contact: Show email

Phone: View phone number on product.excelhire.com

Update Your Resume: Please add any missing skills or certifications that align with the role.
Apply Online: Click the "Apply" button at the end of the job description and complete the required details.
Submit Supporting Documents: Upload a photo ID. If you are not a U.S. citizen or Green Card holder (GC-EAD), please include your work authorization details.
Confirmation: Once submitted, reply to this email to let me know. I'll review your updated materials and, if there's a match, schedule a video interview to discuss further.

We appreciate your time and interest in this opportunity. Our team will review your application carefully and respond promptly.

Vacancy posted more than 2 months ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Sr. Full Stack Engineer (Front End Focused) - Hybrid NYC. Be the first to apply!