Senior Full Stack Engineer - Frontend Architecture

Senior Full Stack Engineer - Frontend ArchitectureJoin a leading Fortune 500 organization in New York, NY as a Senior Full Stack Engineer with a focus on frontend architecture. This contract role offers an exciting opportunity to design and implement modern enterprise web applications that deliver scalable, secure, and accessible digital experiences. You'll lead the development of cutting-edge single-page applications, establish frontend standards, and collaborate with cross-functional teams to drive innovation and modernization efforts. Ideal candidates are passionate about frontend engineering, have strong full-stack expertise, and enjoy mentoring and technical leadership.Key Responsibilities:Design and develop scalable, responsive single-page applications using modern JavaScript frameworks such as React or AngularEstablish and enforce frontend architecture standards and create reusable component librariesDevelop user-friendly web experiences optimized for desktop and mobile devicesIntegrate frontend components with enterprise REST APIs and backend servicesCollaborate with backend engineers to ensure secure, scalable application solutionsImplement authentication, authorization, and session management capabilitiesOptimize application performance, accessibility, and usability in accordance with WCAG standardsParticipate in code reviews and technical design discussions to ensure high-quality deliverablesProvide technical mentorship to development teams and promote best practicesSupport modernization initiatives and continuous improvement projectsTop Requirements:8+ years of full-stack software development experienceExpertise in React and/or Angular frameworksStrong proficiency in TypeScript, JavaScript, HTML5, and CSS3Experience integrating RESTful APIs and working with CI/CD pipelinesKnowledge of security Best Practices, including secure authentication solutionsStrong understanding of accessibility standards (WCAG)Excellent communication skills and proven technical leadership abilitiesPreferred Qualifications:Experience developing mobile applications and Progressive Web Apps (PWAs)Familiarity with Docker and containerization conceptsKnowledge of Azure DevOps or GitHub ActionsExperience in regulated industries or utilitiesAbout Seneca Resources At Seneca Resources, we are more than just a staffing and consulting firm, we are a trusted career partner. With offices across the U.S. and clients ranging from Fortune 500 companies to government organizations, we provide opportunities that help professionals grow their careers while making an impact.When you work with Seneca, you're choosing a company that invests in your success, celebrates your achievements, and connects you to meaningful work with leading organizations nationwide. We take the time to understand your goals and match you with roles that align with your skills and career path. Our consultants and contractors enjoy competitive pay, comprehensive health, dental, and vision coverage, 401(k) retirement plans, and the support of a dedicated team who will advocate for you every step of the way.Seneca Resources is proud to be an Equal Opportunity Employer, committed to fostering a diverse and inclusive workplace where all qualified individuals are encouraged to apply.