Senior UI Designer - Fintech

📍 Job Overview

Job Title: Senior UI Designer - Fintech

Company: Mercado Libre

Location: Governador Valadares, MG, Brazil (Hybrid)

Job Type: Full-time

Category: Product Design / UI/UX

Date Posted: August 21, 2026

Experience Level: Mid-Senior Level (5-10 years)

Remote Status: Hybrid

🚀 Role Summary

• Design innovative and secure end-to-end product experiences for the entire card lifecycle, from issuance to monetization, within the dynamic fintech sector.

• Translate complex business and user problems into intuitive, functional, and visually compelling solutions for both mobile and desktop platforms.

• Collaborate closely with Product and Development teams to create clear and effective prototypes that communicate design intent and facilitate alignment.

• Contribute to the evolution and maintenance of the Andes Design System, including the development and documentation of new components and libraries.

• Leverage Artificial Intelligence (AI) and explore microinteractions to enhance user engagement and create cutting-edge digital product experiences.

📝 Enhancement Note: While the role is titled "Senior UI Designer," the responsibilities and scope described, particularly in translating complex problems into solutions and collaborating on design systems, indicate a strong Product Design focus. The emphasis on AI and end-to-end lifecycle design suggests a strategic role rather than purely visual execution.

📈 Primary Responsibilities

• Spearhead the design of end-to-end product experiences for the full card lifecycle, encompassing issuance, linking, activation, usage habits, and monetization strategies.

• Translate intricate user needs and business objectives into elegant, functional, and visually robust design solutions across mobile and desktop interfaces.

• Develop high-fidelity prototypes and interactive mockups to clearly articulate design concepts, gather feedback, and ensure seamless alignment with Product Managers and Engineering teams.

• Actively participate in the enhancement and maintenance of the Andes Design System, ensuring consistency, scalability, and efficient implementation of design components and libraries.

• Integrate motion design and microinteractions to elevate the user experience, creating more engaging and delightful product interactions.

• Collaborate with cross-functional teams, including Product, Engineering, and Data Science, to understand technical constraints, user behavior, and business goals, ensuring design solutions are feasible and impactful.

• Conduct user research and usability testing to validate design decisions and identify areas for iterative improvement, ensuring a user-centric approach.

📝 Enhancement Note: The responsibilities clearly outline a Senior-level role requiring not just visual design skills but also strategic product thinking, system-level contributions, and cross-functional collaboration within a fintech context. The mention of "Melicidade" suggests a specific company campus or hub, implying an on-site component for the hybrid model.

🎓 Skills & Qualifications

Education: While no specific degree is listed, a Bachelor's degree in Design (e.g., Graphic Design, Interaction Design, Product Design), Human-Computer Interaction, or a related field is typically expected for a Senior role. A strong portfolio can often substitute for formal education.

Experience: 5-10 years of professional experience in visual design for digital products, with a significant focus on mobile application design.

Required Skills:

• UI Design: Proven expertise in creating visually appealing and user-friendly interfaces for digital products, with a strong portfolio showcasing mobile-first design solutions.

• Product Design: Demonstrated ability to translate complex problems into end-to-end, functional, and aesthetically sound design solutions.

• Mobile App Design: Extensive experience designing for iOS and Android platforms, understanding their unique design patterns and user expectations.

• Prototyping: Proficiency in creating interactive prototypes using tools like Figma, Sketch, Adobe XD, or similar, to effectively communicate design concepts.

• Design Systems: Experience working with and contributing to design systems, specifically mentioning the Andes Design System if possible, including component libraries and documentation.

• Typography & Visual Hierarchy: Deep understanding of typography, color theory, layout, and visual hierarchy to create clear and impactful designs.

• Interaction Design: Knowledge of interaction design principles to create intuitive and engaging user flows.

• Usability: Strong grasp of usability principles and best practices to ensure products are easy to use and navigate.

• Artificial Intelligence (AI): Understanding of how AI can be leveraged in product design to enhance user experiences and drive innovative solutions.

• Microinteractions: Ability to design and implement subtle animations and feedback mechanisms that enrich the user experience.

Preferred Skills:

• Desktop Design: Experience designing for web and desktop applications.

• Motion Design: Familiarity with tools and techniques for creating engaging motion graphics and animations.

• Fintech Domain Knowledge: Prior experience or a strong understanding of the financial technology industry, its regulations, and user behaviors.

• User Research & Testing: Experience conducting user interviews, surveys, and usability testing to inform design decisions.

• Agile Development Methodologies: Familiarity with working in Agile/Scrum environments.

📝 Enhancement Note: The "5-10 years" experience level is a strong indicator for a Senior role. The mention of AI and the "Andes Design System" are critical keywords. Candidates should be prepared to demonstrate how they've applied AI principles in their design work and their experience with large-scale design systems.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• A curated portfolio showcasing a minimum of 3-5 complex product design projects, with a strong emphasis on mobile applications and fintech solutions.

• Detailed case studies for each project, illustrating the design process from problem definition to final solution, including user research, ideation, wireframing, prototyping, and visual design.

• Clear demonstration of how design decisions were made, linking them back to user needs, business goals, and technical constraints.

• Examples of contributions to or utilization of design systems, with specific mention of any established design system components or guidelines followed.

• Evidence of collaboration with product managers, engineers, and other stakeholders throughout the design lifecycle.

• Visual examples of how microinteractions and motion design were used to enhance user experience. Process Documentation:

• Showcase how design problems were systematically approached, from initial discovery to iterative refinement.

• Document the workflow used for creating prototypes and communicating design concepts to development teams.

• Provide examples of how user feedback and data were incorporated into the design process to drive improvements.

• Demonstrate an understanding of how to document and transfer design specifications to engineering teams for implementation.

📝 Enhancement Note: For a Senior UI/Product Designer role, the portfolio is paramount. It needs to go beyond just showcasing final screens and demonstrate a deep understanding of the design process, problem-solving capabilities, and collaborative approach. The emphasis on "end-to-end" and "complex problems" means case studies should be robust.

💵 Compensation & Benefits

Salary Range: Based on Mercado Libre's presence in Brazil, the Senior UI Designer role in the fintech sector, and considering the 5-10 years of experience, a competitive salary range in Brazil (specifically Minas Gerais) would likely be between R$ 12,000 to R$ 20,000 per month (gross). This estimate accounts for the seniority, specialized fintech domain, and the hybrid work model.

Benefits:

• Health Insurance: Comprehensive medical, dental, and vision coverage.

• Life Insurance: Financial protection for employees and their families.

• Meal Vouchers (Vale Refeição/Alimentação): Assistance with daily food expenses.

• Transportation Vouchers (Vale Transporte): Support for commuting to the office.

• Stock Options/Performance Bonuses: Potential for company equity or performance-based incentives.

• Professional Development: Access to training programs, workshops, and conferences to enhance skills.

• Employee Assistance Programs: Support for mental health and well-being.

• Hybrid Work Model: Flexibility to balance work from home and in-office collaboration at the Melicidade site.

• On-site Amenities: Access to facilities at Melicidade, which may include gyms, cafeterias, and collaborative workspaces.

Working Hours: Typically 40 hours per week, with flexibility often provided within the hybrid model. Specific core hours for team collaboration will be communicated.

📝 Enhancement Note: Salary estimates for Brazil are highly variable by region and company. This range is a benchmark for a Senior role in a major tech company in the fintech space. Benefits are standard for large Brazilian tech companies. The mention of "Melicidade" implies a specific, potentially large, company campus with amenities.

🎯 Team & Company Context

🏢 Company Culture

Industry: E-commerce and Financial Services (Fintech). Mercado Libre is a dominant force in Latin American e-commerce, expanding significantly into financial technology through Mercado Pago, offering a wide array of financial products and services. This dual focus creates a dynamic environment where technology directly impacts commerce and financial inclusion.

Company Size: Large Enterprise (Mercado Libre is one of the largest tech companies in Latin America, with tens of thousands of employees globally). This means established processes, significant resources, and opportunities for impact at scale.

Founded: 1999. With over two decades of operation, Mercado Libre has a mature operational framework, a strong brand presence, and a proven track record of innovation and growth.

Team Structure:

• The Senior UI Designer will likely be part of a larger Product Design or UX team, potentially embedded within a specific fintech product squad.

• This squad will typically include Product Managers, other Designers (UX Researchers, UI Designers), Software Engineers (Frontend and Backend), and potentially Data Analysts or AI specialists.

• Reporting lines will likely be to a Design Lead or Head of Product Design within the fintech division. Methodology:

• Agile & Iterative Development: Expect to work within agile frameworks, focusing on rapid iteration, continuous feedback, and data-driven decision-making.

• Data-Driven Design: Emphasis on using analytics, A/B testing, and user behavior data to inform design choices and measure impact.

• User-Centricity: A strong focus on understanding and addressing user needs through research, empathy, and continuous user feedback loops.

• Cross-Functional Collaboration: Designs are developed and refined in close partnership with engineering and product management to ensure feasibility and alignment with business objectives.

Company Website: https://www.mercadolibre.com/

📝 Enhancement Note: Mercado Libre's scale and mission to democratize commerce and finance are key cultural drivers. The fintech arm is a significant growth area, attracting talent focused on innovation and impact. The "Melicidade" reference points to a dedicated, large-scale operational hub.

📈 Career & Growth Analysis

Operations Career Level: This is a Senior-level position within the Design function, specifically focusing on UI and Product Design within the Fintech domain. It signifies a transition from individual contribution to a role that involves mentorship, strategic input, and potentially leading design initiatives within a product area. The expectation is for the individual to not only execute but also influence design direction and best practices.

Reporting Structure: The Senior UI Designer will likely report to a Design Lead or Head of Product Design within the fintech division. They will collaborate closely with Product Managers and Engineering Leads within their assigned product squad. This structure allows for both specialized design guidance and cross-functional project integration.

Operations Impact: The role has a direct impact on the usability, adoption, and success of Mercado Libre's financial products. By designing intuitive and effective user experiences for card services, the designer contributes to customer satisfaction, transaction volume, revenue generation, and the overall mission of democratizing financial services. Strong UX/UI design in fintech is critical for trust and engagement.

Growth Opportunities:

• Lead Design Initiatives: Opportunity to lead design efforts for specific features or products within the fintech portfolio.

• Mentorship: Potential to mentor junior designers and contribute to the growth of the design team.

• Specialization: Deepen expertise in fintech design, AI-driven design, or advanced interaction design.

• Management Track: With proven leadership and strategic impact, potential progression into Design Management roles.

• Cross-Functional Mobility: Opportunities to move into Product Management or related GTM roles with continued development.

📝 Enhancement Note: The Senior title implies a higher level of autonomy and influence. Growth opportunities are tied to both deepening design expertise and expanding into leadership or broader product roles, reflecting Mercado Libre's growth trajectory in fintech.

🌐 Work Environment

Office Type: Hybrid. This means a combination of remote work and in-office days spent at the "Melicidade" site. Melicidade is Mercado Libre's large, modern campus, designed to foster collaboration and innovation.

Office Location(s): The role is based in Governador Valadares, MG, Brazil, with the hybrid work arrangement centered around the Melicidade campus. This implies a dedicated, well-equipped physical workspace.

Workspace Context:

• Collaborative Spaces: Melicidade likely offers a variety of collaborative areas, meeting rooms, and open-plan workspaces designed to encourage teamwork and idea sharing.

• Tools & Technology: Access to high-performance workstations, reliable internet, and potentially specialized hardware or software relevant to design and development.

• Team Interaction: Regular opportunities for face-to-face interaction with design colleagues, product teams, and engineers, fostering strong working relationships and facilitating design critiques.

• Innovation Hubs: Campuses like Melicidade often include spaces dedicated to innovation, experimentation, and informal brainstorming.

Work Schedule: The standard working hours will be around 40 hours per week. The hybrid nature allows for flexibility in scheduling, with designated "on-site" days to maximize in-person collaboration and team engagement. This structure aims to balance productivity with work-life integration.

📝 Enhancement Note: "Melicidade" is a key indicator of a significant, modern corporate campus. The hybrid model suggests a structured approach to in-office days, likely for specific team meetings, workshops, and collaborative sessions, crucial for design alignment.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A recruiter will review your application and portfolio for basic qualifications and fit.

• Hiring Manager Interview: Discussion focused on your experience, design philosophy, and motivation for the role.

• Portfolio Review & Design Challenge: A more in-depth session where you present your portfolio, discuss your case studies, and potentially complete a design exercise or whiteboard challenge related to a fintech problem. This assesses your problem-solving skills, design thinking, and communication.

• Team/Peer Interviews: Meet with other designers, product managers, or engineers to assess cultural fit, collaboration style, and technical acumen.

• Final Interview: May involve senior leadership to discuss strategic alignment and overall fit within Mercado Libre's fintech division.

Portfolio Review Tips:

• Focus on Process: Clearly articulate the "why" behind your design decisions. Show your thought process, research, and iterations, not just the final polished screens.

• Quantify Impact: Where possible, use metrics (e.g., conversion rates, task completion times, user satisfaction scores) to demonstrate the impact of your designs.

• Tailor to Fintech: Highlight projects relevant to fintech, e-commerce, or complex digital products. Showcase your understanding of user trust, security, and financial workflows.

• Showcase System Thinking: If you have experience with design systems (especially Andes), explain your contributions and how you ensured consistency and scalability.

• Prepare for Live Critique: Be ready to discuss your work critically, acknowledge challenges, and explain how you would approach improvements.

Challenge Preparation:

• Understand the Fintech Landscape: Familiarize yourself with current trends, common user pain points, and innovative solutions in the fintech space, particularly in Latin America.

• Practice Problem Solving: Be ready to break down a complex problem into smaller, manageable parts and propose design solutions.

• Articulate Your Thinking: Clearly explain your rationale for design choices, even under pressure.

• Embrace Iteration: Show that you can think flexibly and adapt your ideas based on feedback or new constraints.

📝 Enhancement Note: The interview process is likely to be rigorous, with a strong emphasis on portfolio quality and the ability to articulate design strategy within a fintech context. The "Andes Design System" is a specific asset to be aware of.

🛠 Tools & Technology Stack

Primary Tools:

• Design & Prototyping: Figma (highly probable as industry standard), Sketch, Adobe XD.

• Collaboration: Jira, Confluence, Slack, Microsoft Teams.

• Design Systems: Familiarity with building, maintaining, or heavily utilizing established design systems, specifically the Andes Design System is a significant advantage.

Analytics & Reporting:

• Analytics Platforms: Google Analytics, Mixpanel, Amplitude, or internal proprietary tools for tracking user behavior and product performance.

• Data Visualization: Tools like Tableau or Power BI for understanding and presenting data insights.

CRM & Automation:

• While less directly used by UI Designers, understanding how CRM data (e.g., Salesforce) and marketing automation tools influence user journeys can be beneficial.

• Familiarity with tools for user feedback collection and management.

📝 Enhancement Note: Figma is almost certainly the primary design tool. Knowledge of the Andes Design System is a significant plus and should be highlighted if possible. Familiarity with analytics tools is crucial for a data-driven design approach.

👥 Team Culture & Values

Operations Values:

• Customer Centricity: A deep commitment to understanding and serving the needs of Mercado Libre's users, ensuring products are intuitive, reliable, and valuable.

• Innovation & Agility: Encouraging experimentation, embracing new technologies (like AI), and adapting quickly to market changes to stay ahead in the competitive fintech and e-commerce landscape.

• Collaboration & Teamwork: Fostering an environment where diverse teams work together seamlessly, sharing knowledge and supporting each other to achieve common goals.

• Data-Driven Decision Making: Utilizing data and insights to inform design choices, measure impact, and drive continuous improvement in product performance.

• Impact & Ownership: Empowering individuals to take ownership of their work, drive meaningful change, and contribute to Mercado Libre's mission of democratizing commerce and finance.

Collaboration Style:

• Cross-Functional Integration: Designers are integrated into product squads, working daily with Product Managers, Engineers, and other stakeholders to ensure alignment and efficient execution.

• Open Feedback Culture: Encouraging constructive feedback through design critiques, peer reviews, and collaborative workshops to continuously refine designs.

• Knowledge Sharing: Promoting the sharing of best practices, learnings, and design resources across teams, often facilitated through internal platforms, workshops, or design system documentation.

📝 Enhancement Note: Mercado Libre's core values likely revolve around agility, customer focus, and a drive for impact, particularly within the Latin American market. The fintech division adds a layer of emphasis on trust, security, and financial inclusion.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing Innovation with Regulation: Designing for fintech requires navigating complex regulatory requirements while still delivering innovative and user-friendly experiences.

• Scalability Across Diverse Markets: Ensuring designs are adaptable and relevant across various Latin American countries with different user behaviors, languages, and economic contexts.

• Integrating AI Seamlessly: Effectively incorporating AI capabilities into user interfaces without overwhelming users or compromising usability.

• Maintaining Design Consistency: Ensuring a cohesive user experience across a broad range of financial products and services, especially when working with a large design system.

Learning & Development Opportunities:

• Fintech Design Specialization: Opportunities to become an expert in the nuances of financial services design, focusing on trust, security, and user education.

• AI in Design Workshops: Access to internal training and external resources on leveraging AI tools and methodologies in the design process.

• Design System Contribution: Deepen expertise in design system architecture, component development, and governance.

• Leadership Development Programs: For high-potential individuals, formal programs to develop leadership and management skills.

📝 Enhancement Note: The challenges are specific to the fintech industry and the scale of Mercado Libre. Growth opportunities are geared towards specialization, leadership, and leveraging cutting-edge technologies like AI.

💡 Interview Preparation

Strategy Questions:

• "Describe a complex product experience you designed from end-to-end for a mobile application. What was the problem, your approach, and the outcome?" (Focus on problem-solving, process, and impact.)

• "How would you approach designing a new feature for a credit card issuance process that aims to increase activation rates?" (Assess design thinking, user empathy, and understanding of core fintech flows.)

• "Discuss your experience with design systems. How have you contributed to or utilized them to ensure consistency and efficiency?" (Probe for understanding of design systems, specifically Andes if applicable.)

• "How do you incorporate AI or advanced technologies into your design process to create innovative solutions?" (Evaluate your forward-thinking approach and practical application of new tech.) Company & Culture Questions:

• "What interests you about Mercado Libre's mission and its role in democratizing commerce and financial services in Latin America?" (Showcase genuine interest in the company's purpose.)

• "How do you approach collaboration with Product Managers and Engineers to ensure successful product launches?" (Demonstrate teamwork and communication skills.)

• "Describe a time you received constructive criticism on your design. How did you handle it, and what did you learn?" (Assess openness to feedback and growth mindset.) Portfolio Presentation Strategy:

• Structure Your Case Studies: For each project, clearly outline: Problem, Your Role, Process (Research, Ideation, Design), Solution, and Impact (Metrics, Learnings).

• Tell a Story: Weave a narrative that highlights your critical thinking and problem-solving journey.

• Be Prepared for Deep Dives: Anticipate questions about specific design choices, trade-offs made, and alternative solutions considered.

• Showcase Your Tools & Process: Briefly explain the tools you used and why, and how your process evolved.

• Highlight Collaboration: Emphasize how you worked with others and incorporated their feedback.

📝 Enhancement Note: Interview preparation should focus on demonstrating a strong understanding of the design process, problem-solving skills, the ability to work collaboratively, and a genuine interest in Mercado Libre's mission and the fintech space.

📌 Application Steps

To apply for this Senior UI Designer position:

• Submit your application through the Mercado Libre careers portal or the provided link.

• Tailor Your Resume: Highlight experience in UI design, product design, mobile applications, fintech, and any experience with design systems (especially Andes). Use keywords from the job description.

• Curate Your Portfolio: Select 3-5 of your strongest projects that best showcase your skills relevant to this role. Ensure each case study clearly articulates the problem, your process, your contribution, and the impact. Prioritize mobile and fintech examples.

• Prepare Your Presentation: Practice walking through your portfolio case studies concisely and engagingly, focusing on your design thinking and problem-solving approach. Be ready for live design challenges or whiteboard exercises.

• Research Mercado Libre: Understand their mission, recent fintech initiatives, and the "Andes Design System." Prepare thoughtful questions for the interviewers about the role, team, and company culture.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.

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