About this role.
Vercel is hiring a senior growth-focused Fullstack Engineer to build high-performance web experiences that improve user acquisition, conversion, and retention. The role leads complex frontend initiatives, develops scalable applications and APIs, runs A/B tests, and optimizes funnel reliability, speed, and UX. Candidates need 5+ years of frontend experience, strong React and Next.js skills, full-stack API familiarity, and expertise in SEO and conversion-rate optimization. The position requires close collaboration with marketing, sales, product, and design, with an emphasis on polished visual execution and measurable business outcomes. It is remote within the United States, with office anchor days for people living near San Francisco, New York, London, or Berlin.
Role DNA
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Job Complexity
5/5Pace & Pressure
5/5Autonomy Level
4/5Communication Load
5/5Salary analysis
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Core skills
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Cover letter sample
Dear Hiring Team,
I am excited to apply for the growth-focused Fullstack Engineer role at Vercel. With deep experience building high-performance React and Next.js experiences, I can translate growth, marketing, and product goals into polished web journeys that improve acquisition and conversion. I bring a data-informed approach to A/B testing, funnel optimization, SEO, accessibility, and scalable frontend architecture.
I would welcome the opportunity to help Vercel deliver fast, reliable, and visually exceptional experiences for developers and teams worldwide.
Sincerely,
[Your Name]
Sample interview questions
I would begin by defining a clear primary metric, such as qualified sign-up conversion, and guardrail metrics such as page speed, bounce rate, and downstream activation. I would form a hypothesis, implement an isolated and statistically sound experiment, validate event instrumentation, and review results by meaningful audience segments before deciding whether to ship, iterate, or stop the test.
I focus first on the critical rendering path: server rendering where appropriate, efficient caching, optimized images and fonts, code splitting, and limiting unnecessary client-side JavaScript. I use field and lab metrics such as Core Web Vitals to identify bottlenecks, then make targeted improvements while protecting accessibility and visual quality.
I would work backwards from the user and business goal, clarify the desired audience and conversion event, and share early prototypes or technical constraints with design and marketing. Regular reviews, documented decisions, and a shared dashboard for experiment outcomes help the team move quickly without losing alignment.
I would create a consistent component API, token-driven styling, accessibility requirements, documentation, and visual regression coverage. I would prioritize reusable primitives and patterns while allowing deliberate escape hatches so the system supports experimentation without fragmenting the experience.
I would verify analytics accuracy and trace the funnel from acquisition source through conversion, looking for changes by device, browser, geography, and traffic channel. I would inspect performance, errors, UX friction, and recent releases, then prioritize the highest-confidence issue or test a focused fix with measurable success criteria.
About Vercel:
Vercel is the agentic infrastructure company. We free people and agents to ship what’s next.
For more than a decade, Vercel has shaped how the web is built. As the team behind Next.js, v0, and AI SDK, we create products that help builders move from idea to production with speed, security, and exceptional developer experience.
Now, software is entering a new era, and the next generation of products will not just be used by people. They will be built, extended, and operated by agents.
We are building the platform for that future, trusted by companies like OpenAI, PayPal, Ramp, Supreme, and millions of developers worldwide. Whether you’re building our products, supporting our customers, growing our community, or shaping our story, you’ll help define what comes next.
About the Role:
As a growth-focused Fullstack Engineer on our team, you will play a central role in driving user acquisition, conversion, and retention through highly performant and visually stunning web experiences. You will collaborate with cross-functional teams—from marketing to sales to product design—to build dynamic pages, run A/B tests, and optimize conversion funnels.
In this role, you’ll design and develop scalable features that enhance the user journey, integrate feedback loops, monitor key metrics, and ensure the reliability of our acquisition funnel. By staying updated on industry trends and focusing on delightful UX, you’ll continuously refine our web properties—ultimately delivering an exceptional experience from first touch through ongoing engagement.
If you’re based within a pre-determined commuting distance of one of our offices (SF, NY, London, or Berlin), the role includes in-office anchor days on Monday, Tuesday, and Friday. If you’re located beyond that distance, the role is fully remote. For location-specific details, please connect with our recruiting team.
What You Will Do:
- Lead complex frontend projects that establish Vercel as a gold standard for brand and product marketing.
- Collaborate with growth and marketing teams to A/B test landing pages for lead generation across multiple channels.
- Design and implement scalable applications, web services, and APIs with a focus on user experience and performance.
- Contribute to our design system and uphold industry-leading UX standards (e.g., interactions, micro-animations, layout consistency).
- Continuously improve engineering processes, tools, and systems to scale the codebase and team productivity.
- Troubleshoot and fix bugs, delivering quick, high-quality resolutions.
- Write technical documents and maintain internal tools to empower other teams.
- Review and provide feedback on contributions from other engineers.
- Identify bottlenecks and optimize for conversion, speed, and reliability across the funnel.
- Critically think about foundational areas of the Vercel application to ensure ease of maintenance and future extensibility.
About You:
- 5+ years of professional frontend engineering experience (React, JavaScript, Tailwind CSS, or similar).
- Strong proficiency in Next.js and familiarity with modern frontend frameworks.
- Full stack experience (comfortable designing or consuming APIs and working with various services).
- Deep understanding of SEO principles and best practices—especially around performance, accessibility, and search optimization.
- Proven knowledge of A/B testing concepts and conversion rate optimization.
- Stellar cross-functional communication skills—you can work effectively with marketing, design, and product to reach shared goals.
- Eye for good user experiences and a knack for “getting the visuals right.”
- Desire to work in a fast-paced environment, continuously grow, and master your craft.
Bonus If You:
- Have familiarity with the Vercel platform.
- Comfortable using Tailwind CSS.
- Background in web design or interest in design systems.
- Interest in developer tooling domain.
Benefits:
- Competitive compensation package, including equity.
- Inclusive Healthcare Package.
- Learn and Grow – we provide mentorship and send you to events that help you build your network and skills.
- Flexible Time Off.
- We will provide you the gear you need to do your role, and a WFH budget for you to outfit your space as needed.
The San Francisco, CA base pay range for this role is $196,000 – $294,000. Actual salary will be based on job-related skills, experience, and location. Compensation outside of San Francisco may be adjusted based on employee location. The total compensation package may include benefits, equity-based compensation, and eligibility for a company bonus or variable pay program depending on the role. Your recruiter can share more details during the hiring process.
Vercel is committed to fostering and empowering an inclusive community within our organization. We do not discriminate on the basis of race, religion, color, gender expression or identity, sexual orientation, national origin, citizenship, age, marital status, veteran status, disability status, or any other characteristic protected by law. Vercel encourages everyone to apply for our available positions, even if they don’t necessarily check every box on the job description.
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