Responsibilitie Responsibilities Lead the design, development, and architectural evolution of large-scale, high-traffic e-commerce frontend applications. Architect and implement complex integrations with third-party e-commerce platforms (e.g., Shopify) and external APIs to facilitate seamless product, cart, and checkout workflows. Establish and enforce frontend performance standards; utilize advanced profiling tools to optimize Core Web Vitals, including rendering speed, resource utilization, and bundle size management. Design and deploy secure cross-domain authorization protocols and session management systems to ensure data integrity across multiple web properties. Develop reusable, schema-driven dynamic form engines and UI libraries to support complex business logic and localized user experiences. Provide high-level technical consultation to cross-functional teams. Mentor junior/senior engineers on frontend best practices and design patterns. Qualification Qualifications Must have a Bachelor's degree or foreign equivalent degree in Computer Science, Engineering (any), Information Technology, Mathematics, Statistics, Physics, or a related field, and 5 years of related work experience. In lieu of a Bachelor's degree, employer will accept an additional 2 years of related work experience. Of the required experience, must have 3 years of experience in each of the following: Advanced profiling, memory management, and rendering optimization in a production environment; Designing and maintaining complex, logic-heavy form architectures using React and modern JavaScript ecosystems; Implementing secure authentication across multiple domains; Conducting deep-level integration with third-party e-commerce platforms, including API management and custom storefront development; and Implementing and evaluating user behavioral tracking and using data insights to drive frontend UX/UI optimizations. Type: Full time, 40 hours/week Location: San Jose, CA Salary Range: $264514 - $480000 per year To Apply, click the apply button below. Contact [redacted] if you have difficulty submitting resume through the website. Job Information 【For Pay Transparency】Compensation Description (Annually) The base salary range for this position in the selected city is $264514 - $480000 annually. Compensation may vary outside of this range depending on a number of factors, including a candidate's qualifications, skills, competencies and experience, and location. Base pay is one part of the Total Package that is provided to compensate and recognize employees for their work, and this role may be eligible for additional discretionary bonuses/incentives, and restricted stock units. Benefits may vary depending on the nature of employment and the country work location. Employees have day one access to medical, dental, and vision insurance, a 401(k) savings plan with company match, paid parental leave, short-term and long-term disability coverage, life insurance, wellbeing benefits, among others. Employees also receive 10 paid holidays per year, 10 paid sick days per year and 17 days of Paid Personal Time (prorated upon hire with increasing accruals by tenure). The Company reserves the right to modify or change these benefits programs at any time, with or without notice.