UI Engineer II

Benefits

Parental leave

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Non-birth-parent leave

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Family-building benefits

• Fertility benefits: Not verified
• Adoption assistance: Not verified
• Surrogacy assistance: Not verified

Mental health support

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Relocation assistance

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Childcare support

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Learning budget

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Verification

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Salary

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Market context

U.S. role benchmark (BLS OEWS)

$116,543 U.S. median for this role

Projected growth (BLS Employment Projections)

+9.8% - Much faster than average

Matched to SOC 15-1252 - Software Engineering aggregate by role bucket.

Source: U.S. Bureau of Labor Statistics, OEWS, May 2024 and Employment Projections, 2024-2034.

Role

Role function

Engineering From the posting source checked Jun 20, 2026

Seniority

Mid From the posting source checked Jun 20, 2026

Schedule

Shift type

Not verified

Weekend work

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Company

Company stage

Growth-stage From the posting source checked Jun 20, 2026

Application

Cover letter

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Assessment

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Deadline

Not stated

Where they hire

State eligibility is not yet verified.

About this role

UI Engineer II Lisbon, Estremadura, Portugal Your opportunity At Mollie, our mission is to make payments and money management effortless for every business in Europe and the UK. With that mission, the App Core team focuses on enabling product teams to ship customer-facing features faster, across web and mobile, with a great developer experience. We're looking for a UI Engineer who's excited about platform work : improving how features are built, released, and maintained across multiple apps and teams. Rather than owning a single end-user feature, you'll help create the foundations that allow other teams to move quickly and confidently - from smoother release cycles to better tooling, infrastructure, and localisation workflows. You'll work on systems that sit at the heart of our development process, shaping how engineers build, test, release, and scale Mollie's products. Your work will directly impact hundreds of engineers and, through them, hundreds of thousands of customers. Join us and be part of a team that's not only shaping the future of payments but also making the right improvements once so teams across Mollie can ship better software, faster. What you'll be doing You will be working with us on building and maintaining platform solutions that enable product teams to ship customer-facing features across web and mobile, used by hundreds of thousands of users every month. Our focus is on creating strong foundations that improve how features are developed, released, and operated at scale. We care deeply about quality and well-designed experiences-not only for our customers,

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