Sr. Staff Engineer (Fullstack/Frontend)

**This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Sr. Staff Engineer (Fullstack/Frontend) based in United States.** This role is designed for a highly experienced engineering leader who can define technical direction and shape the future of large-scale customer-facing platforms. You will drive architectural innovation, establish frontend excellence, and enable teams to build reliable, high-performance digital experiences. The position combines hands-on technical expertise with organization-wide influence, strategic thinking, and mentorship. You will collaborate with engineering, product, and business leaders to translate customer needs into scalable solutions. As a senior technical authority, you will guide engineering standards, improve developer velocity, and solve complex challenges across teams. This is an opportunity to make a significant impact within a fast-growing environment focused on technology, customer experience, and sustainable growth. ### Accountabilities: As a Sr. Staff Engineer, you will provide technical leadership across frontend and full-stack systems, shaping architecture, engineering practices, and product capabilities. You will work across teams to improve scalability, reliability, performance, and execution while mentoring engineers and influencing long-term technical strategy. - Define and evolve the architectural vision for customer-facing frontend systems, ensuring alignment with business objectives and future scalability needs. - Lead cross-functional technical initiatives focused on system architecture, design systems, rendering strategies, and foundational UI capabilities. - Drive frontend engineering excellence by establishing best practices for performance, accessibility, responsiveness, and user experience quality. - Develop and promote scalable frameworks, patterns, and infrastructure that improve engineering efficiency and delivery velocity. - Serve as a technical authority for frontend architecture decisions, ensuring solutions are secure, maintainable, observable, testable, and resilient. - Partner with engineering and product leadership to influence product direction and ensure technical strategies support business goals. - Translate customer needs, product requirements, and user feedback into scalable technical solutions that improve digital experiences. - Mentor senior engineers and technical leaders, fostering engineering excellence, continuous learning, and strong technical standards. - Lead complex initiatives from strategy through execution, removing blockers, aligning stakeholders, and ensuring successful delivery. - Identify systemic risks and drive investments in reliability, observability, migrations, and long-term platform sustainability. - Support product discovery by evaluating technical feasibility, prototyping solutions, and validating new ideas through experimentation. ## **Requirements:** The ideal candidate is a seasoned engineering leader with deep frontend expertise, strong architectural experience, and the ability to influence technical decisions across an organization. You should be comfortable balancing immediate delivery needs with long-term scalability, quality, and customer impact. - 12+ years of professional software engineering experience with demonstrated technical leadership at an organizational level. - Extensive experience with modern frontend technologies and frameworks such as React, Next.js, and GraphQL. - Proven ability to build and scale high-performance web applications and customer-facing digital experiences. - Strong full-stack development capabilities, including backend experience with technologies such as Node.js and Python. - Deep understanding of UI performance optimization, accessibility standards, responsive design, and frontend best practices. - Experience creating and scaling shared frontend infrastructure, component libraries, or design systems across multipl…