Full-Stack Engineer

Who We Are

Zenni pioneered the online eyewear industry in 2003 with a mission to make eyewear affordable and accessible for everyone. With complete prescription pairs starting under $10, Zenni offers adults and children the freedom to see clearly and express themselves through a wide selection of high-quality prescription glasses, sunglasses, protective eyewear, and non-prescription frames - curated with fashion, function, and style in mind. Based in the San Francisco Bay Area, Zenni has redefined the traditional retail model, emerging as the premier destination for online eyewear in the United States while surpassing 70 million frames sold globally. Zenni is proud to be the Official Eyewear of the San Francisco 49ers, Columbus Crew, Monster Jam, WWE, Team Liquid, and more. Zenni has collaborated with designers and tastemakers on exclusive collections, including Chase Stokes and George and Claire Kittle. For more information, visit zenni.com.

Position Overview

Zenni is looking for an experienced and proactive Full-Stack Engineer to join our Commercial Operations team in Shanghai. As a key member of the team, you will play a critical role in building and refining the platforms, tools, and services that power Zenni’s commercial operations, driving technical innovations and enabling the business to scale. You will be instrumental in translating commercial and operational objectives into reliable, cutting-edge full-stack solutions that boost revenue, streamline workflows, and enhance both customer and internal-user experiences. Your responsibilities will span the entire product lifecycle, including clarifying technical requirements, evaluating potential solutions, implementing features across the frontend and backend, monitoring metrics, and continuously improving platform performance. You will lead initiatives to introduce new capabilities, reshape and automate commercial processes, tackle complex challenges, and collaborate closely with the commercial, marketing, and operations teams to achieve shared goals. You understand how engineering teams work, are comfortable with a fast pace, and manage many concurrent efforts. You are familiar with e-commerce business and its underlying domain models. You can communicate effectively with team leaders & directors. Most of all, you love solving hard technical, product, and business challenges to make a difference in the lives of other people.

What you will be doing at Zenni

• Build and evolve the platforms, internal tools, and services that support Zenni’s commercial operations, marketing, and promotional campaigns.
• Translate commercial and operational requirements into technical initiatives, solutions, and launch plans across the full stack.
• Reshape and automate business processes to improve efficiency, reliability, and time-to-market for commercial and promotional activities.
• Define and track key engineering metrics to measure engineering success and drive continuous improvement.
• Work closely with the commercial, marketing, product, design, and QA teams to ensure the successful delivery of high-quality products.
• Collaborate with global team members on company wide technical initiatives.
• Leverage AI tools and techniques to accelerate development and unlock new capabilities for the commercial team.
• Stay up-to-date with the latest web technologies, industry trends, and user behaviors to inform technical strategy and development.

The ideal candidate would possess

Education: Bachelor’s degree or higher in a relevant field.

Professional Experience:

• 5+ years of overall work experience, including 2+ years dedicated to full-time full-stack web development.
• Strong TypeScript expertise, including experience with strict mode configurations.
• Proficiency with Next.js and modern React patterns: Hooks, Context API, Custom Hooks architecture, SSR/SSG, and the App Router.
• Solid backend development experience with Node.js and/or Java, including designing and building RESTful or GraphQL APIs and microservices.
• Familiarity with e-commerce domain models and technical architecture (catalog, cart, checkout, order, payment, promotion, and inventory) is essential.
• Experience with relational and/or NoSQL databases, caching, and message queues.
• Familiarity with Tailwind CSS/TanStack Query and modern data-fetching patterns.
• Effective use and solid understanding of AI tools and LLMs, including AI-assisted development and integrating AI capabilities into business workflows.
• Experience building internal platforms, tools, or workflow automation is highly desirable.
• Familiarity with cloud platforms and CI/CD pipelines is a plus.
• Competency in writing unit tests and end-to-end (E2E) tests.

Communication: Exceptional written and verbal communication skills in both English and Chinese, with the ability to explain complex technical concepts to diverse audiences, including non-technical stakeholders.

At Zenni Optical, people remain the heart of our mission, even as we embrace technology that moves us forward. While we recognize the immense promise of AI, we are equally mindful of its limitations and use these tools strictly to assist our Talent Acquisition team rather than replace human judgment. We utilize AI tools as a collaborative partner to create content–such as job descriptions, interview questions, and outreach messaging–and review resumes, but we maintain a firm commitment to human-led hiring where AI never makes a final decision. Every selection is determined by a member of our team to ensure every candidate is personally valued by a human rather than an algorithm.

We look forward to hearing from you!

We strive to build a diverse team of individuals with a broad range of experience and perspectives. We encourage you to apply even if you don’t feel you meet all the qualifications.

Zenni Optical is an equal opportunity workplace and considers applications without regard to race, color, national origin, gender identity, sexual orientation, age, citizenship, marital status, disability, or Veteran status. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements.