Senior UX/UI Designer

📍 Job Overview

Job Title: Senior UX/UI Designer Company: letgo Location: İstanbul, Turkey Job Type: Full-time Category: UX/UI Design Date Posted: 2025-12-22 Experience Level: Mid-Senior Level (4+ years) Remote Status: Hybrid

🚀 Role Summary

• Design and develop robust, scalable, component-based user interfaces for both mobile applications and web platforms.
• Drive user-centered design principles throughout the product development lifecycle, from ideation to iteration.
• Collaborate closely with product management, engineering, and other cross-functional teams to translate user needs into intuitive and engaging user experiences.
• Champion best practices in UX/UI design, including responsive design, mobile-first approaches, and conversion optimization.
• Contribute to the evolution and maintenance of design systems and style guides to ensure consistency and scalability.

📝 Enhancement Note: While this role is for a UX/UI Designer, the emphasis on "conversion optimization" and "A/B testing" strongly suggests a focus on growth-oriented design and user funnel optimization, which aligns with GTM and Revenue Operations principles of driving measurable business outcomes through user interface design.

📈 Primary Responsibilities

• Architect and create comprehensive design solutions for mobile applications and web interfaces, focusing on component-based design for scalability and efficiency.
• Lead the creation of user personas, detailed journey maps, wireframes, and interactive prototypes to visualize user flows and interaction models.
• Conduct user research and usability testing to gather critical feedback, informing iterative design improvements and ensuring user needs are met.
• Design and refine user interfaces, incorporating user feedback and testing results to enhance user satisfaction and task completion rates.
• Stay abreast of emerging industry trends, design patterns, and technological advancements to continuously improve design quality and innovation.
• Actively participate in the development, documentation, and enforcement of design systems and style guides, ensuring brand consistency and design efficiency across products.
• Collaborate with product managers and developers to define product requirements and ensure design feasibility and seamless implementation.
• Champion the principles of User Centered Design, Responsive Design, and Mobile First in all design initiatives.
• Apply a strong emphasis on interaction design, with a strategic focus on conversion optimization and A/B testing to drive key business metrics.

📝 Enhancement Note: The responsibility to focus on "conversion optimization and A/B testing" indicates a need for the designer to understand and contribute to business growth objectives, requiring a mindset aligned with GTM and RevOps goals.

🎓 Skills & Qualifications

Education:

• Bachelor's degree in Graphic Design, Visual Communication Design, Human-Computer Interaction, or a closely related field.

Experience:

• Minimum of 4 years of dedicated experience in User Experience (UX) design.
• Proven experience in designing for both mobile applications (iOS and Android) and web platforms.
• Demonstrated ability to apply user-centered design principles to create intuitive and effective user interfaces.

Required Skills:

• Proficiency in Design Tools: Expert-level command of industry-standard design and prototyping software, including Figma, Miro, Sketch, and the Adobe Creative Suite.
• UX Design Principles: Deep understanding and practical application of user-centered design methodologies, heuristics, and best practices.
• Mobile & Web Design: Proven experience in designing for native mobile applications and responsive web interfaces, with a strong grasp of platform-specific design guidelines.
• Interaction Design: Strong ability to conceptualize and design engaging user interactions, with a focus on usability and efficiency.
• User Research & Testing: Experience in planning and conducting user interviews, surveys, and usability studies to gather actionable insights.
• Wireframing & Prototyping: Skillful creation of low-fidelity wireframes and high-fidelity interactive prototypes to communicate design concepts effectively.

Preferred Skills:

• Conversion Optimization: Practical experience in designing interfaces and user flows specifically aimed at improving conversion rates and user funnel progression.
• A/B Testing: Familiarity with the principles of A/B testing and experience in designing variations for testing to optimize user engagement and business outcomes.
• Design Systems: Experience in contributing to or managing design systems, including component libraries, style guides, and design tokens.
• Agile Methodologies: Experience working within agile development environments, collaborating closely with engineering teams.
• Visual Design: Strong aesthetic sense and ability to create visually appealing and on-brand interfaces.

📝 Enhancement Note: The explicit mention of "conversion optimization and A/B testing" is a critical indicator for operations professionals. While the role is UX/UI, these skills are highly valued in GTM and RevOps for driving revenue growth. Candidates with a portfolio demonstrating measurable impact on conversion rates will be highly competitive.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Demonstrated UX Process: Showcase a clear and comprehensive UX design process, detailing your approach from problem definition to final solution, including user research, ideation, wireframing, prototyping, and testing.
• Mobile & Web Design Examples: Include at least two distinct projects, one focusing on mobile application design and another on web interface design, highlighting your versatility.
• System Contribution: If applicable, include examples of your contributions to design systems, style guides, or component libraries, demonstrating your ability to create scalable design assets.
• Impact Metrics: For each project, clearly articulate the business objectives and the measurable impact of your design solutions, ideally with quantitative data (e.g., conversion rate improvements, task completion time reduction, user satisfaction scores).

Process Documentation:

• User Journey Mapping: Present examples of user journey maps you have created, illustrating your understanding of user flows and pain points.
• Wireframing & Prototyping: Showcase high-quality wireframes and interactive prototypes that effectively communicate complex user interactions and navigation.
• Usability Testing Reports: Include summaries or key findings from usability tests you have conducted, demonstrating your ability to translate user feedback into actionable design changes.
• Conversion-Focused Design Case Studies: Detail case studies where your design decisions directly led to improvements in conversion rates or other key business metrics, explaining the rationale behind your choices.

📝 Enhancement Note: For this role, a portfolio that not only showcases design aesthetics but also demonstrates a data-driven approach with tangible results (especially in conversion optimization) will be highly valued. Operations candidates should look for how this role's output directly impacts user funnels and revenue.

💵 Compensation & Benefits

Salary Range: Based on industry benchmarks for Senior UX/UI Designers with 4+ years of experience in İstanbul, Turkey, a competitive salary range would typically fall between ₺750,000 - ₺1,200,000 gross per year. This estimate considers the cost of living in İstanbul, the demand for specialized design talent, and the responsibilities outlined for this senior role.

Benefits:

• Comprehensive Insurance: Life and health insurance plans to provide security and peace of mind.
• Performance Bonus: An annual bonus scheme, likely tied to individual and company performance, offering a direct reward for contributions.
• Hybrid Work Model: Flexibility with a hybrid working arrangement, balancing in-office collaboration with remote work.
• Professional Development: Opportunities for continuous learning, skill enhancement, and career guidance within the company.
• Dynamic Work Environment: Access to a vibrant and evolving workplace culture that encourages innovation and collaboration.
• Career Pathing: Defined career guidance and development paths to support long-term professional growth.

Working Hours:

• Standard full-time working hours are expected, likely around 40 hours per week. The hybrid model offers flexibility in how these hours are structured.

📝 Enhancement Note: The salary estimate is based on research of senior designer roles in İstanbul, Turkey, factoring in the company's stated benefits and the seniority of the position. Operations professionals can use this as a benchmark for understanding the compensation landscape for design roles that directly influence business outcomes.

🎯 Team & Company Context

🏢 Company Culture

Industry: E-commerce (Second-hand marketplace) Company Size: letgo is a well-established platform with a significant user base (over 100 million downloads), indicating a medium to large-sized organization with established operational processes and a substantial market presence. Founded: Founded information is not provided, but the company's significant growth and established platform suggest a history of innovation and adaptation in the tech and e-commerce space.

Team Structure:

• Cross-functional Collaboration: The role explicitly requires collaboration with product managers, developers, and other stakeholders, indicating a highly integrated, cross-functional team environment common in tech companies.
• Design Team Specialization: While not detailed, a Senior UX/UI Designer position suggests there is a dedicated design team or function within the organization, likely structured to support product development efforts.
• Reporting: The Senior UX/UI Designer will likely report into a Design Lead, Head of Product Design, or potentially a Product Manager, depending on the organizational structure.

Methodology:

• User-Centric Design: The core methodology revolves around User Centered Design, emphasizing understanding user needs and feedback.
• Agile Development: The mention of collaboration with developers and the nature of a fast-paced tech company implies an agile development process, with iterative design sprints and continuous feedback loops.
• Data-Informed Decisions: The emphasis on conversion optimization and A/B testing signifies a data-driven approach to design, where decisions are validated through analytics and performance metrics.

Company Website: letgo.com (Implied by domain_derived)

📝 Enhancement Note: The company's focus on the circular economy and its user base of over 100 million downloads highlights a mission-driven culture with a strong emphasis on user impact and market reach. For operations professionals, this means an environment that values efficiency, scalability, and user engagement.

📈 Career & Growth Analysis

Operations Career Level: This role is positioned as a Senior UX/UI Designer, indicating a mid-to-senior level of experience. It requires not only strong design execution skills but also the ability to contribute to design strategy, mentor junior designers (potentially), and influence product direction through user advocacy and data-informed insights. This level implies a significant degree of autonomy and responsibility in shaping the user experience.

Reporting Structure: The Senior UX/UI Designer will likely report to a Design Manager, Head of Product Design, or a senior Product Manager. They will work closely with a cross-functional team including Product Managers, Software Engineers, and potentially Marketing or Data Analysts.

Operations Impact: The "conversion optimization and A/B testing" aspects of this role directly link UX/UI design to business operations and revenue generation. By improving user flows, reducing friction, and enhancing the overall user experience, this designer will directly contribute to increased user acquisition, engagement, retention, and ultimately, transaction volume on the letgo platform. This is a critical link to GTM and RevOps objectives.

Growth Opportunities:

• Lead Design Initiatives: Progress to a Lead UX/UI Designer or Design Lead role, managing a team and setting design strategy.
• Specialization: Deepen expertise in specific areas such as interaction design, user research, or design systems.
• Product Strategy: Transition into a Product Manager role, leveraging design thinking and user understanding to define product roadmaps.
• Cross-functional Moves: Opportunities to move into related areas like Conversion Rate Optimization (CRO) specialist roles or even operational strategy roles where a deep understanding of user behavior is crucial.
• Mentorship: Take on mentorship responsibilities for junior designers.

📝 Enhancement Note: The growth opportunities highlight how a senior design role can evolve into leadership or strategic positions, often intersecting with operations. The "conversion optimization" aspect is a clear bridge to GTM strategy.

🌐 Work Environment

Office Type: The company offers a hybrid working model, suggesting a blend of in-office collaboration and remote flexibility. The office environment is likely modern, designed to foster collaboration and innovation, with common amenities found in tech companies.

Office Location(s): The primary office location specified is İstanbul, Turkey. This implies a central hub for operations and team interaction.

Workspace Context:

• Collaborative Spaces: The office likely includes meeting rooms, open-plan areas, and potentially dedicated quiet zones to support diverse working styles.
• Tools & Technology: Access to industry-standard design software (Figma, Sketch, Adobe Suite), collaboration tools (Miro), and potentially company-specific platforms for project management and communication.
• Team Interaction: Regular opportunities for in-person and virtual interaction with design, product, and engineering teams, fostering a cohesive and communicative work environment.

Work Schedule: A hybrid work schedule is provided, offering flexibility. While core working hours may exist for team synchronization, there's likely flexibility in daily start/end times to accommodate personal needs and optimize productivity, especially important for deep work required in design tasks.

📝 Enhancement Note: The hybrid model is a key aspect for work-life balance and productivity, relevant for operations professionals who often manage complex workflows and require focused time.

📄 Application & Portfolio Review Process

Interview Process:

1. Initial Screening: A brief call with a recruiter to assess basic qualifications, experience, and cultural fit.
2. Design Assessment/Challenge: Candidates may be asked to complete a take-home design challenge or a live design exercise during an interview. This often focuses on problem-solving, design thinking, and applying the company's design principles to a specific scenario.
3. Portfolio Presentation & Deep Dive: An in-depth discussion where the candidate presents their portfolio, walking through key projects, their design process, decision-making rationale, and the impact of their work. This stage often includes questions about their experience with conversion optimization and A/B testing.
4. Cross-functional Interviews: Meetings with Product Managers, Developers, and potentially other stakeholders to assess collaboration skills, communication style, and technical understanding.
5. Hiring Manager Interview: A final discussion with the hiring manager to assess overall fit, leadership potential, and alignment with team goals.

Portfolio Review Tips:

• Focus on Process: Clearly articulate your design process for each project. Explain why you made certain decisions, not just what you did.
• Showcase Impact: Quantify the results of your work whenever possible. Highlight improvements in conversion rates, user engagement, task efficiency, or satisfaction scores. Use data to back up your claims.
• Tailor to letgo: Research letgo's platform, users, and business goals. Frame your projects and case studies to demonstrate how your skills align with their needs, especially concerning their marketplace model and conversion objectives.
• Highlight Conversion Optimization: Dedicate a section or specific project to demonstrate your experience with conversion optimization and A/B testing. Explain your approach to identifying opportunities, designing variations, and analyzing results.
• Be Prepared for Live Exercises: Practice thinking aloud and problem-solving under pressure if a live design challenge is expected.

Challenge Preparation:

• Understand the Brief: Thoroughly read and understand any design challenge brief. Ask clarifying questions if needed.
• Emphasize User Needs: Ground your solutions in user research and validated user needs.
• Structure Your Solution: Organize your thinking logically, covering problem definition, user insights, proposed solution, design rationale, and expected outcomes.
• Consider Business Goals: Always link your design decisions back to business objectives, particularly conversion rates and platform growth, as this is a key requirement.
• Time Management: Practice completing design exercises within a reasonable timeframe, focusing on delivering a well-reasoned solution rather than a fully polished final product.

📝 Enhancement Note: The emphasis on a portfolio review and potential design challenges, especially those related to conversion optimization, means candidates should prepare to demonstrate not just design skill but also a strategic, data-driven mindset that directly impacts business outcomes.

🛠 Tools & Technology Stack

Primary Tools:

• Figma: The primary tool for UI design, wireframing, and prototyping, likely used for collaborative design workflows and creating scalable components.
• Miro: Essential for collaborative brainstorming, user journey mapping, workflow visualization, and ideation sessions.
• Sketch: Potentially used for specific design tasks or as a legacy tool, though Figma is often the modern standard.
• Adobe Creative Suite (Photoshop, Illustrator): Used for asset creation, image manipulation, and potentially more specialized graphic design tasks.

Analytics & Reporting:

• User Analytics Platforms (e.g., Amplitude, Mixpanel, Google Analytics): Crucial for understanding user behavior, tracking conversion funnels, and identifying areas for optimization.
• A/B Testing Tools (e.g., Optimizely, VWO, Google Optimize): Used to design and implement experiments to test design variations and measure their impact on key metrics.

CRM & Automation:

• While not directly managed by UX/UI, understanding how CRM data or marketing automation impacts user journeys and conversion paths can be beneficial. Familiarity with how user data flows through systems to inform design decisions is an asset.

📝 Enhancement Note: Proficiency in Figma and Miro is expected. The mention of "conversion optimization and A/B testing" implies a need for familiarity with analytics and testing tools, bridging the gap between design and operational performance metrics.

👥 Team Culture & Values

Operations Values:

• User-Centricity: A fundamental value of understanding and prioritizing user needs in all design and product decisions.
• Data-Driven: Decisions are informed by user data, analytics, and the results of A/B testing to ensure effectiveness and impact.
• Collaboration: Strong emphasis on teamwork and open communication across product, engineering, and other departments to achieve shared goals.
• Impact-Oriented: A focus on delivering work that has a tangible and positive impact on users and business objectives, particularly conversion rates and platform growth.
• Continuous Improvement: A culture that encourages learning, iteration, and adaptation based on feedback, new trends, and performance data.

Collaboration Style:

• Iterative Design: Working in sprints, with frequent feedback loops and iterative refinement of designs.
• Cross-functional Partnership: Close collaboration with Product Managers to define requirements and strategy, and with Developers to ensure feasible and high-quality implementation.
• Open Feedback: Encouragement of constructive feedback within the design team and across departments to improve design quality and product outcomes.
• Knowledge Sharing: A culture that promotes sharing best practices, insights from user research, and learnings from A/B tests.

📝 Enhancement Note: The values of data-driven decision-making and impact-orientation are highly relevant to operations professionals, as they underscore the importance of measurable results and efficiency in the company's culture.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing User Needs with Business Goals: Effectively translating user needs into designs that also drive conversion optimization and business growth for a marketplace platform.
• Scaling Design Systems: Ensuring design consistency and efficiency across a growing platform with numerous features and user touchpoints.
• Data Interpretation: Translating complex user data and A/B testing results into actionable design improvements.
• Cross-functional Alignment: Managing expectations and ensuring buy-in from diverse stakeholders with potentially competing priorities.
• Rapid Iteration: Adapting to fast-paced product development cycles and quickly iterating on designs based on feedback and performance data.

Learning & Development Opportunities:

• Advanced UX/UI Techniques: Deepening expertise in areas like interaction design, animation, or user research methodologies.
• Conversion Rate Optimization (CRO): Developing specialized skills in CRO, leveraging design to directly impact key business metrics.
• Product Strategy: Gaining exposure to product roadmapping, strategy, and market analysis.
• Leadership Skills: Opportunities to mentor junior designers, lead design initiatives, or manage design projects.
• Industry Trends: Staying ahead of the curve in UX/UI design, mobile technology, and e-commerce best practices through training, conferences, and internal knowledge sharing.

📝 Enhancement Note: The challenges and growth opportunities highlight the role's potential for significant professional development, particularly in areas that bridge design with business operations and revenue generation.

💡 Interview Preparation

Strategy Questions:

• "Describe a time you used data and user feedback to significantly improve a product's conversion rate. What was your process, and what were the results?" (Focus on demonstrating your CRO and A/B testing experience).
• "Walk us through a complex UX challenge you faced in designing for a mobile application or web platform. How did you approach it, and what was your solution?" (Prepare to detail your problem-solving methodology).
• "How do you balance the needs of different stakeholders (e.g., product, engineering, marketing) when designing a new feature?" (Prepare examples of cross-functional collaboration and negotiation).

Company & Culture Questions:

• "What excites you about letgo's mission and the second-hand marketplace?" (Research letgo's values, market position, and user base).
• "How do you see your role contributing to letgo's growth and user engagement?" (Connect your design skills, especially CRO, to business objectives).
• "Describe your ideal team environment and how you contribute to a collaborative culture." (Reflect on the company's likely values of collaboration and user-centricity).

Portfolio Presentation Strategy:

• Structure for Impact: Begin with a summary of your role and the project's goals. Clearly state the problem you were solving and the business objectives (e.g., increase conversion by X%).
• Showcase Your Process: Detail your UX process step-by-step, using visuals like journey maps, wireframes, and user flow diagrams. Explain your rationale for key decisions.
• Highlight CRO & A/B Testing: Dedicate specific slides or sections to projects where you focused on conversion optimization. Show A/B test variations, explain your hypotheses, and present the measured outcomes.
• Quantify Results: Use numbers and data to demonstrate the success of your designs. If exact figures are confidential, use percentages or relative improvements.
• Tell a Story: Engage the interviewers by framing your projects as narratives with clear beginnings, challenges, solutions, and impactful endings.

📝 Enhancement Note: Preparing for questions that directly probe conversion optimization and A/B testing experience is crucial. Candidates should be ready to discuss their strategic approach and demonstrate tangible business impact.

📌 Application Steps

To apply for this Senior UX/UI Designer position:

• Submit your application through the provided application link on jobs.lever.co.
• Portfolio Customization: Ensure your portfolio is up-to-date and prominently features projects that highlight your UX process, mobile/web design experience, and, critically, your work on conversion optimization and A/B testing. Tailor your case studies to emphasize measurable business impact.
• Resume Optimization: Update your resume to include keywords from the job description such as "UX Design," "UI Design," "Mobile Application Design," "Web Design," "Figma," "Conversion Optimization," and "A/B Testing." Quantify your achievements where possible.
• Interview Preparation: Review common UX interview questions, practice articulating your design process, and prepare specific examples for how you've driven conversion improvements. Rehearse your portfolio presentation, focusing on storytelling and data-driven results.
• Company Research: Thoroughly research letgo, its mission, its platform, and its position in the Turkish e-commerce market. Understand their user base and business model to better align your application and interview responses.

⚠️ 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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