Senior Product Designer

📍 Job Overview

Job Title: Senior Product Designer

Company: Lastro

Location: Brazil

Job Type: Full-time

Category: Product Design / UX/UI

Date Posted: May 12, 2026

Experience Level: Mid-Senior Level (3+ years)

Remote Status: On-site

🚀 Role Summary

• Lead the end-to-end product design process, focusing on identifying and solving critical user problems with scalable solutions.

• Drive the investigation of real user pain points and rapidly prototype, test, and iterate on design solutions, translating learnings into actionable product improvements.

• Collaborate closely with Product, Engineering, and other cross-functional teams to ensure design solutions align with business goals, technical feasibility, and genuine user needs.

• Contribute to the continuous improvement of product usability, scalability, and overall design maturity through data analysis and user feedback integration.

📝 Enhancement Note: The role emphasizes a "product mindset," indicating a need for designers who not only create interfaces but also understand and contribute to product strategy, business objectives, and market fit. The focus on "resolving the right problems" highlights a strategic approach to design, moving beyond purely aesthetic concerns.

📈 Primary Responsibilities

• Prototype and iterate on design solutions based on user feedback and stakeholder input, ensuring high standards of usability and aesthetic quality.

• Translate customer needs into viable solutions by balancing technical constraints, business objectives, and user requirements, embodying a strong product-oriented approach.

• Create comprehensive design artifacts including user flows, wireframes, prototypes, and high-fidelity interfaces, actively investigating and mapping usability improvement opportunities in partnership with Product.

• Conduct and support user research, interviews, and usability testing to connect design hypotheses with practical, evidence-based insights.

• Collaborate effectively with Technology and Product teams throughout the entire delivery lifecycle, defining clear design requirements and specifications.

• Analyze product data and monitor key metrics to generate actionable insights for enhancing the overall user experience and product performance.

📝 Enhancement Note: The responsibilities clearly indicate a hands-on design role that also requires strategic thinking and cross-functional leadership. The emphasis on "investigating real pain points" and "translating learnings into deliveries" suggests a need for iterative design processes and a data-informed approach to problem-solving.

🎓 Skills & Qualifications

Education: While not explicitly stated, a Bachelor's or Master's degree in Design, HCI, Computer Science, or a related field is often preferred for Senior Product Designer roles. A strong portfolio demonstrating equivalent experience and skills will be considered.

Experience: Minimum of 3 years of professional experience in Product Design, UX Design, UI Design, or similar roles.

Required Skills:

• Advanced proficiency in UI and Prototyping tools such as Figma and Miro.

• Proven experience in identifying and investigating user problems and business opportunities to co-create effective solutions.

• Demonstrated experience in user research, from planning and execution to analysis, including conducting usability tests.

• Strong communication and interpersonal skills with the ability to positively influence Product and Technology teams.

• Collaborative and critical mindset essential for evolving products and processes.

Preferred Skills:

• Familiarity with generative AI tools or a strong interest in the domain.

• Proficiency in UX writing or designing for chatbot interfaces.

• Experience working in early-stage startups or companies experiencing rapid growth.

📝 Enhancement Note: The experience requirement of 3+ years aligns with a mid-senior level, suggesting the candidate will be expected to work independently and mentor junior designers. The emphasis on "product mindset" and "solving the right problems" implies that candidates with experience in agile environments and a deep understanding of business strategy will be highly valued.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Showcase end-to-end product design projects that demonstrate your ability to identify user problems, ideate solutions, and deliver high-fidelity designs.

• Include case studies that highlight your involvement in user research, usability testing, and the iterative design process.

• Present examples of how you've translated business goals and technical constraints into effective user experiences.

• Demonstrate proficiency with design tools like Figma, Miro, and prototyping software, showcasing complex workflows and interactive prototypes.

Process Documentation:

• Detail your user research methodologies, including planning, participant recruitment, interview/testing execution, and synthesis of findings.

• Document your iterative design process, from initial wireframing and prototyping to high-fidelity UI and user feedback incorporation.

• Explain your collaboration process with Product Managers and Engineers, including how you define requirements, provide specifications, and manage feedback loops.

• Showcase how you leverage data and metrics to inform design decisions and measure the impact of your solutions.

📝 Enhancement Note: As this is a Senior Product Designer role, the portfolio is expected to go beyond just visual design. It should clearly articulate the candidate's thought process, problem-solving approach, and ability to drive product outcomes through design. The inclusion of "product mindset" and "business goals" suggests a need to demonstrate an understanding of business impact.

💵 Compensation & Benefits

Salary Range: Based on industry benchmarks for Senior Product Designers in Brazil with 3+ years of experience, and considering the on-site nature of the role, a competitive salary range could be estimated between R$ 8,000 to R$ 15,000 per month. This estimate accounts for the experience level, the specific skills required, and the general cost of living in major Brazilian cities where such roles are typically based.

Benefits:

• Caju Card: A flexible benefits card offering freedom in how benefits are utilized.

• Wellhub: Access to a wide network of gyms and wellness services, extended to legal dependents.

• Health Insurance: Option to enroll in the Alice health plan through Lastro.

Working Hours: Typically 40 hours per week, aligning with standard full-time employment in Brazil. While the role is on-site, there may be some flexibility depending on team needs and project deadlines.

📝 Enhancement Note: The salary estimation is based on publicly available data for similar roles in Brazil, adjusted for the Senior level and the specific requirements mentioned. Benefits like the Caju Card and Wellhub suggest a modern, employee-centric approach to compensation, common in tech startups and growth-stage companies. A R$7,000 monthly spread is a reasonable estimate for a Senior role in Brazil.

🎯 Team & Company Context

🏢 Company Culture

Industry: Lastro operates within the technology sector, likely focusing on SaaS or a digital platform, given the product design role. The company's website suggests a focus on financial technology or business management solutions, indicating a need for designers who can handle complex information and user flows.

Company Size: While not explicitly stated, the "Senior" title and the mention of collaborating with "Product, Engineering, and other areas" suggest a company that has moved beyond the early startup phase and has established, but likely agile, teams. The context of "startups in initial stage or rapid growth" as a differential implies Lastro is either in this phase or aims for that dynamic.

Founded: Lastro was founded in 2019, indicating it's a relatively young company with a focus on innovation and growth, aiming to disrupt its market.

Team Structure:

• The design team likely consists of Product Designers, potentially with UI specialists and researchers, working in close alignment with Product Managers and Engineering teams.

• Reporting structure likely involves a Design Lead or Head of Product, with Senior Designers expected to operate with autonomy and potentially mentor junior members.

Methodology:

• Data analysis and user research are central to understanding user needs and validating design decisions.

• Workflow planning and optimization are continuous processes, driven by a desire for efficiency and improved user experience.

• Automation and efficiency practices are likely encouraged, especially in a fast-growing tech environment.

Company Website: https://lastro.co/

📝 Enhancement Note: Lastro's founding in 2019 places it as a scale-up or growth-stage company. This means the culture is likely dynamic, with a balance between established processes and the agility required for rapid development. The "product mindset" emphasis suggests a culture where design is seen as a strategic partner in business success, not just a functional department.

📈 Career & Growth Analysis

Operations Career Level: Senior Product Designer. This level signifies a professional capable of independently leading significant design initiatives, driving complex projects from concept to launch, and contributing to the strategic direction of the product's user experience. They are expected to mentor others and influence design best practices within the company.

Reporting Structure: The Senior Product Designer will likely report to a Design Lead, Head of Product, or a Product Manager, depending on the organizational structure. They will work closely with Product Managers, Engineers, and potentially Marketing or Customer Success teams.

Operations Impact: This role has a direct impact on user acquisition, retention, and overall product adoption by ensuring intuitive and effective user experiences. By solving user problems and improving usability, the designer contributes to customer satisfaction, reduced support costs, and increased revenue generation through enhanced product value.

Growth Opportunities:

• Leadership Track: Potential to grow into a Lead Product Designer, Design Manager, or Head of Design role, overseeing design teams and strategy.

• Specialization: Opportunity to deepen expertise in specific areas like UX research, interaction design, design systems, or emerging fields like AI-driven design.

• Product Strategy: Involvement in higher-level product strategy discussions and contributing to the long-term vision of Lastro's offerings.

• Mentorship: Opportunity to mentor junior designers and contribute to building a strong design culture.

📝 Enhancement Note: The "Senior" title inherently implies a path for growth, either into management or deeper specialization. For a company founded in 2019 and experiencing rapid growth, opportunities for significant impact and career advancement are likely abundant, especially for individuals who can demonstrate strategic thinking and leadership potential.

🌐 Work Environment

Office Type: The role is described as "On-site," indicating a physical office location rather than a fully remote setup. This suggests a collaborative environment where in-person interaction is valued.

Office Location(s): Brazil. While specific city details are not provided, major tech hubs in Brazil like São Paulo, Rio de Janeiro, or Florianópolis are common locations for such roles. Candidates should be prepared for an on-site presence in one of these regions.

Workspace Context:

• The workspace is expected to foster collaboration, with opportunities for direct interaction with Product, Engineering, and other stakeholders.

• Access to up-to-date design tools and technology is standard for such roles.

• The environment will likely be dynamic and fast-paced, characteristic of a growth-stage company.

Work Schedule: Standard full-time working hours (approximately 40 hours per week) are expected. While on-site, there might be some flexibility around start and end times, but core hours will likely be required for team collaboration.

📝 Enhancement Note: Being an on-site role in Brazil, the work environment is likely to be structured, with a strong emphasis on team cohesion and face-to-face problem-solving. This setup often facilitates faster decision-making and a more integrated team dynamic, which can be beneficial for complex product development.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A brief call with HR or a recruiter to assess basic qualifications, cultural fit, and interest.

• Portfolio Review & Design Challenge: A more in-depth session where candidates present their portfolio, discuss their design process, and potentially tackle a specific design problem or case study relevant to Lastro's products.

• Team Interviews: Meetings with Product Managers, Engineers, and potentially other designers to evaluate collaboration skills, technical understanding, and strategic thinking.

• Final Interview: A discussion with a senior leader (e.g., Head of Product, CEO) to assess overall fit, leadership potential, and strategic alignment.

Portfolio Review Tips:

• Focus on Process: Clearly articulate your thought process, problem definition, research methods, and iterative design decisions for each project.

• Quantify Impact: Whenever possible, include metrics and data that demonstrate the success or impact of your designs (e.g., improved conversion rates, reduced task completion time, increased user satisfaction).

• Showcase Collaboration: Highlight instances where you effectively collaborated with cross-functional teams and how that partnership led to better outcomes.

• Tailor to Lastro: If possible, subtly tailor your presentation to address challenges or opportunities relevant to Lastro's industry or known product areas.

Challenge Preparation:

• Be prepared to discuss your approach to common design challenges, such as designing for complex data, improving onboarding flows, or optimizing existing features.

• Practice articulating your design decisions concisely and persuasively.

• Consider how you would gather requirements, brainstorm solutions, and validate your approach in a time-constrained scenario.

📝 Enhancement Note: The emphasis on "product mindset" and "solving the right problems" means interviewers will be looking for candidates who can articulate why they made certain design choices, not just how. Expect questions that probe your understanding of business objectives and how design contributes to them.

🛠 Tools & Technology Stack

Primary Tools:

• Figma: Essential for UI design, prototyping, and collaborative workflows. Proficiency is a must.

• Miro: Crucial for brainstorming, user journey mapping, wireframing, and cross-functional collaboration.

• Prototyping Tools: While Figma includes prototyping, experience with other dedicated tools (e.g., InVision, Principle) might be beneficial but not explicitly required.

Analytics & Reporting:

• Familiarity with product analytics tools (e.g., Google Analytics, Mixpanel, Amplitude) is highly desirable for analyzing user behavior and informing design decisions.

CRM & Automation:

• While not directly a CRM role, understanding how design impacts user journeys within CRM or similar business software can be an advantage, especially if Lastro's product integrates with such systems.

• Familiarity with design system tools and methodologies can streamline development and ensure consistency.

📝 Enhancement Note: The explicit mention of Figma and Miro indicates these are core tools. A Senior Product Designer should also be comfortable with data analysis tools to demonstrate the impact of their work and inform future design directions, reflecting the "analyze data and follow product metrics" responsibility.

👥 Team Culture & Values

Operations Values:

• Problem-Solving: A drive to understand and solve complex user and business challenges.

• Collaboration: A strong belief in working closely with cross-functional teams to achieve shared goals.

• Continuous Improvement: A commitment to learning, iterating, and enhancing both products and processes.

• Data-Informed Decisions: Valuing evidence and metrics to guide design choices and validate hypotheses.

• User-Centricity: Placing the user's needs and experience at the forefront of all design work.

Collaboration Style:

• Open communication and constructive feedback are encouraged across teams.

• Design is integrated throughout the product development lifecycle, fostering a partnership between design, product, and engineering.

• Knowledge sharing through design critiques, documentation, and informal discussions is likely a key aspect.

📝 Enhancement Note: The company's emphasis on "product mindset" and "solving the right problems" suggests a culture that values strategic thinking and business impact alongside user experience. The culture likely supports experimentation and iteration, which is crucial for a growth-stage tech company.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing Stakeholder Needs: Effectively mediating between user desires, business objectives, and technical constraints to deliver optimal solutions.

• Rapid Iteration in a Growth Environment: Adapting quickly to changing priorities and market demands while maintaining design quality.

• Designing for Scalability: Creating solutions that can evolve with the product and company growth, ensuring long-term usability.

• Measuring Design Impact: Clearly demonstrating the ROI and effectiveness of design initiatives through data and metrics.

Learning & Development Opportunities:

• Advanced Design Techniques: Opportunities to explore and implement cutting-edge design methodologies and tools.

• Industry Trends: Staying abreast of new technologies, such as generative AI, and their applications in design.

• Product Strategy: Deepening involvement in product strategy and roadmap planning.

• Mentorship: Formal or informal opportunities to mentor junior designers and develop leadership skills.

📝 Enhancement Note: The challenges listed are typical for a Senior Product Designer in a dynamic, growth-oriented company. The "familiarity with generative AI" preference hints at opportunities to work with emerging technologies, offering a unique growth path.

💡 Interview Preparation

Strategy Questions:

• "Describe a time you had to balance conflicting stakeholder requirements. How did you approach it, and what was the outcome?" (Assesses negotiation, problem-solving, and collaboration.)

• "Walk us through a complex product design project from your portfolio. What was the problem, your process, the solution, and the impact?" (Assesses end-to-end design capability, research, and iteration.)

Company & Culture Questions:

• "What interests you about Lastro and our mission?" (Assesses research and genuine interest.)

• "How do you approach collaboration with Product Managers and Engineers?" (Assesses teamwork and communication style.)

Portfolio Presentation Strategy:

• Tell a Story: Structure your portfolio presentations around clear narratives for each project, highlighting the problem, your role, your process, the solution, and the measurable impact.

• Be Concise and Focused: Highlight the most relevant projects and aspects of your work, respecting the interviewers' time.

• Be Prepared for Deep Dives: Anticipate detailed questions about your decision-making process, the tools you used, and the challenges you faced.

• Showcase Your "Product Mindset": Emphasize how your design decisions contributed to business goals or solved critical user needs strategically.

📝 Enhancement Note: Expect interview questions to probe your understanding of business context and your ability to translate user needs into strategic product outcomes. The "product mindset" will be a recurring theme, so be ready to demonstrate it in your answers and portfolio.

📌 Application Steps

To apply for this Senior Product Designer position:

• Submit your application through the provided link on Breezy HR.

• Optimize Your Resume: Tailor your resume to highlight your 3+ years of experience in Product Design, specifically mentioning your proficiency with Figma, Miro, user research, and your "product mindset." Quantify achievements where possible.

• Curate Your Portfolio: Select 2-3 strong case studies that best showcase your end-to-end design process, problem-solving skills, collaboration experience, and impact. Ensure they highlight your ability to balance user needs with business objectives.

• Prepare Your Presentation: Practice walking through your portfolio projects, focusing on the story, your role, and the outcomes. Be ready to discuss specific design decisions and your rationale.

• Research Lastro: Understand Lastro's product, industry, and company mission by visiting their website (lastro.co). This will help you articulate your interest and tailor your responses during interviews.

⚠️ 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.