Senior Web Designer UX/UI

Sorry, this job was removed at 04:12 p.m. (CST) on Monday, Feb 09, 2026
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São Paulo, BRA
In-Office
Fintech • Payments
SumUp. Big believers in small business.
The Role

Team Description

We're a Digital Acquisition team that drives SumUp Brazil’s entire online marketing strategy. From paid media to social campaigns to website optimization and content initiatives, our focus is to connect with entrepreneurs at every stage of their digital journey.

If you’re passionate about transforming user behavior into performance gains, and love the challenge of scaling digital experiences that convert, you’ll find the perfect environment to grow with us.

What you’ll do

  • Analyze the end-to-end conversion funnel and synthesize market research into actionable insights.
  • Prioritize and scope initiatives using data from GA4 and onsite behavior tools.
  • Design user-centered flows and interfaces that improve acquisition performance.
  • Propose, build, and run A/B tests with clear success metrics and reporting.
  • Collaborate daily with Growth, Content, and Product to ship impactful website changes

You’ll be great for this role if

  • You have proven experience designing user-centered flows and interfaces for web acquisition, with measurable impact.
  • You have a strong analytical profile and are proficient in Google Analytics 4 (GA4), using data to guide decisions.
  • You can formulate hypotheses and translate insights into concrete actions and experiments.
  • You communicate clearly, influence stakeholders, and align cross-functional teams.
  • You are comfortable working with CMS, Figma, Adobe Creative Suite, and GA4 in your daily workflow.

Nice to have

  • You have advanced techniques in UX Writing and UX Research that strengthen clarity, conversion, and user trust.

Job Application Tip

We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp.

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The Company
Boulder, CO
2,750 Employees
Year Founded: 2017

What We Do

SumUp believes that every business should have access to affordable, easy-to-use financial solutions, no matter their size. That’s why more than 3 million businesses worldwide rely on SumUp to run their business. What started out as one card reader has now turned into a range of payment hardware, banking solutions, marketing, and loyalty tools, invoicing, and so much more. From sales and marketing to product and engineering, our cross-functional US team works together to ensure that small business owners can be successful doing what they love.

Why Work With Us

SumUp USA is part of the global SumUp organization that stretches across multiple continents from Berlin to Sao Paulo. Our teams are multicultural, have a collaborative mindset and bold goals. Join our mission if you want to become part of the success story and help empower over 3 million merchants using SumUp already!

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