UI/UX Designer (Focus on UI, with UX experience)

📍 Job Overview

Job Title: UI/UX Designer (Focus on UI, with UX Experience)

Company: Happy Mammoth LLC

Location: Warsaw, Masovian Voivodeship, Poland

Job Type: Full-time Contractor

Category: Creative & Design, E-commerce Operations

Date Posted: 2026-08-17

Experience Level: Mid-Level (2-5 years)

Remote Status: Fully Remote

🚀 Role Summary

• Drive user engagement and conversion rates through expert UI/UX design for e-commerce platforms and digital campaigns.

• Translate business objectives and creative briefs into visually stunning and intuitively navigable user interfaces.

• Enhance the overall customer journey by optimizing website product pages and campaign creatives for a seamless user experience.

• Maintain brand consistency and visual quality across all digital touchpoints, ensuring a cohesive brand identity.

• Collaborate with a global, diverse team of innovators to deliver high-impact design solutions that align with business goals.

📝 Enhancement Note: This role is specifically for a UI/UX Designer with a primary emphasis on UI craft, but a solid understanding and experience in UX principles are essential. The focus on e-commerce and DTC brands, combined with the need for conversion optimization, highlights the role's direct impact on revenue generation and customer acquisition for Happy Mammoth's B2C operations.

📈 Primary Responsibilities

• Design and iteratively improve product pages to maximize visual appeal, clarity, and ease of navigation, directly impacting conversion rates.

• Develop compelling campaign creatives that effectively communicate brand messaging and drive desired user actions, contributing to marketing ROI.

• Conduct redesigns of existing website sections, proactively identifying opportunities to enhance user experience, boost engagement metrics, and lift conversion rates.

• Transform initial briefs, rough concepts, and ideas into polished, high-fidelity designs that meet both aesthetic and functional requirements.

• Strategically apply UX knowledge to determine optimal placement of key information, calls-to-action (CTAs), trust elements, and benefit-driven content to influence user decision-making.

• Architect intuitive user journeys for new pages and features, ensuring a natural, friction-free flow from initial interaction to desired outcome.

• Uphold and enforce visual design consistency across the website and various campaign touchpoints to strengthen brand recognition and user trust.

• Rapidly adapt and refine designs based on constructive feedback from stakeholders and evolving business priorities, demonstrating agility in a fast-paced environment.

• Ensure all designs are fully responsive and perform optimally across various devices, including desktop and mobile, to cater to a diverse user base.

📝 Enhancement Note: The responsibilities emphasize a results-oriented approach, linking design directly to business outcomes such as conversion rates and user engagement. The need to "take briefs, ideas, and campaign concepts and turn them into polished, high-quality designs" points to a role that requires strong conceptualization and execution skills, crucial for driving GTM initiatives through effective creative assets.

🎓 Skills & Qualifications

Education: While not explicitly stated, a Bachelor's degree in Graphic Design, Interaction Design, Human-Computer Interaction, or a related field is typically expected for mid-level design roles. Equivalent practical experience will also be considered.

Experience: 2-5 years of proven experience as a UX/UI Designer, with a strong emphasis on digital and web design portfolios demonstrating successful project outcomes.

Required Skills:

• UI Design Craftsmanship: Exceptional attention to detail, a high standard for visual aesthetics, and the ability to create polished, pixel-perfect interfaces.

• UX Principles & Application: Solid understanding of user-centered design principles, user journey mapping, and how to optimize user flows for better engagement and conversion.

• E-commerce/DTC Design Experience: Proven experience designing for direct-to-consumer (DTC) or e-commerce platforms, with an understanding of online retail user behavior and conversion funnels.

• Figma Proficiency: Strong, demonstrated proficiency in Figma for design, prototyping, and collaboration.

• Responsive Design: Expertise in creating designs that adapt seamlessly across desktop, tablet, and mobile devices.

• Conversion Optimization: Understanding of conversion principles and how design elements can influence user behavior and drive desired actions.

• Visual Design Consistency: Ability to maintain and enforce a consistent visual language across various digital platforms and campaigns.

• Adaptability & Feedback Integration: Capacity to quickly iterate on designs based on feedback and business requirements.

Preferred Skills:

• Health/Supplement Industry Experience: Previous design work within the health, wellness, or supplement industry is a significant advantage.

• Prototyping Skills: Experience creating interactive prototypes to effectively communicate design concepts and user flows.

• A/B Testing Collaboration: Familiarity with collaborating on A/B testing initiatives for design elements to validate hypotheses and optimize performance.

• Understanding of Web Performance: Awareness of how design choices can impact website loading speed and overall performance.

📝 Enhancement Note: The emphasis on "strong UI design skills" coupled with "UX knowledge" and a "proven portfolio of digital and web design work" indicates that candidates are expected to showcase both aesthetic capabilities and a strategic understanding of user behavior and business objectives. The preference for e-commerce/DTC experience directly aligns with Happy Mammoth's business model and the role's contribution to sales operations.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Demonstrate UI/UX Craft: Showcase a range of visually polished UI designs with clear examples of user interface elements, typography, color palettes, and layout principles.

• Illustrate User-Centricity: Provide case studies that detail the UX process, including user research (even if informal), problem definition, ideation, wireframing, user flows, and how design decisions addressed user needs and business goals.

• E-commerce/DTC Focus: Highlight specific projects related to e-commerce websites, product pages, landing pages, or digital marketing campaigns that drove measurable results (e.g., increased conversion rates, improved engagement).

• Conversion Optimization Examples: Feature designs where you intentionally applied conversion principles, explaining the rationale behind specific design choices and, if possible, any observed impact.

• Figma Work Samples: Include examples of your work within Figma, demonstrating your proficiency in its features for design and prototyping.

• Responsive Design Showcase: Present designs that clearly illustrate how they adapt for both desktop and mobile experiences.

Process Documentation:

• Design Process Walkthrough: Be prepared to articulate your design process from brief to final deliverable, explaining your approach to problem-solving, ideation, and iteration.

• Collaboration & Feedback: Describe how you incorporate feedback from stakeholders, product managers, and marketing teams into your design iterations.

• Tool Proficiency Justification: Explain how you leverage tools like Figma to streamline your workflow, ensure consistency, and facilitate collaboration.

📝 Enhancement Note: For a UI/UX role focused on conversion and e-commerce, the portfolio is paramount. Candidates must demonstrate not just aesthetic talent but a strategic understanding of how design impacts business metrics. The request for "conversion-optimised design" and experience with "e-commerce or DTC brands" means portfolios should explicitly feature relevant projects and highlight the outcomes achieved.

💵 Compensation & Benefits

Salary Range: For a Full-Time Contractor UI/UX Designer with 2-5 years of experience, located in Warsaw, Poland, and working remotely within EU hours, a competitive rate would typically range from €30,000 - €50,000 annually (gross). This estimate is based on market rates for skilled freelance/contract designers in Central Europe, considering the remote nature and the specific skill set required.

Benefits:

• Strong Salary Package: Competitive compensation reflecting skills and hard work.

• Paid Holidays: Generous paid time off for rest and personal pursuits.

• Work from Anywhere: Complete flexibility to work from any location worldwide.

• Flexible Working Hours: Ability to manage one's own schedule to suit personal productivity patterns.

• Opportunities for Growth: Access to free books, courses, and resources for continuous skill development and career advancement.

• Dynamic Work Environment: Exposure to new challenges and excitement in a fast-paced, diverse global setting.

• Make a Difference: Opportunity to contribute to a mission focused on improving customer health and well-being.

Working Hours: This is a full-time role, typically requiring approximately 40 hours per week. While the specific hours are flexible, candidates must be available during EU hours (GMT time zone) for collaboration and meetings.

📝 Enhancement Note: The salary range provided is an estimation for a contractor role in Poland, adjusted for remote work and the specified experience level. It's crucial for candidates to understand that this is an estimate and actual compensation will be negotiated. The benefits listed are comprehensive and align with the company's emphasis on employee well-being and growth.

🎯 Team & Company Context

🏢 Company Culture

Industry: Food Technology (specifically gut health, digestive aids, and microbiome-focused supplements), E-commerce, Health & Wellness. Happy Mammoth operates in a growing market driven by increasing consumer interest in natural health solutions and personalized wellness.

Company Size: Happy Mammoth is described as "rapidly expanding" and having a "global crew of international innovators." This suggests a dynamic, possibly growing startup or scale-up environment with a significant international footprint across the US, Australia, and Europe.

Founded: The founding date is not provided, but the company's rapid expansion and presence in multiple international markets indicate a relatively established, yet agile, operation.

Team Structure:

• Global & Diverse: The team is international, comprising innovators from various regions.

• Cross-Functional Collaboration: The role requires collaboration with various teams, implied by the need to design for "website and campaigns" and to take "briefs" from stakeholders.

• Focus on Innovation: The company culture values innovation and creativity ("creativity knows no bounds").

• Remote-First/Hybrid: While the role is remote, the need for availability during EU hours suggests a structured approach to remote work and team synchronization.

Methodology:

• Data-Driven Design: The emphasis on conversion optimization and business impact implies that design decisions are informed by data and performance metrics.

• Agile Iteration: The requirement to "Adapt and improve designs quickly based on feedback and business priorities" points to an agile design process.

• User-Centric Approach: Core to UX/UI design, the company values understanding and catering to user needs and journeys.

Company Website: https://store.happymammoth.com/

📝 Enhancement Note: The company's focus on health and wellness, combined with a tech-forward approach (food tech, e-commerce), suggests a culture that values innovation, customer well-being, and data-informed strategies. The "rapidly expanding" nature implies opportunities for individuals to grow with the company and influence its trajectory.

📈 Career & Growth Analysis

Operations Career Level: This role is positioned as a Mid-Level UI/UX Designer, requiring 2-5 years of experience. It's a hands-on design position focused on executing high-quality UI and applying UX principles to achieve business objectives, particularly in e-commerce conversion. The role is an individual contributor, crucial for the visual and interactive aspects of Happy Mammoth's digital presence.

Reporting Structure: As a contractor, the UI/UX Designer will likely report to a Design Lead, Marketing Manager, or Head of Digital. The role requires close collaboration with marketing, product, and potentially development teams to translate strategic briefs into tangible design assets.

Operations Impact: The UI/UX Designer directly influences Happy Mammoth's revenue operations by:

• Boosting Conversion Rates: Designing intuitive and persuasive product pages and campaign creatives that drive sales.

• Enhancing Customer Experience: Creating a seamless and enjoyable user journey that encourages repeat business and brand loyalty.

• Strengthening Brand Perception: Ensuring a visually appealing and consistent brand identity across all digital touchpoints.

• Supporting Marketing Campaigns: Providing high-quality visual assets that effectively communicate value propositions and drive campaign performance.

Growth Opportunities:

• Skill Specialization: Deepen expertise in UI design, conversion rate optimization (CRO), or specific e-commerce UX patterns.

• Cross-Functional Exposure: Gain experience working closely with marketing, product management, and potentially engineering teams.

• Contribution to Brand Evolution: Play a key role in shaping the visual identity and user experience of a growing global brand.

• Learning Resources: Leverage company-provided "free books, courses, and all the resources you need to level up your skills."

• Potential for Future Roles: Demonstrating strong performance and impact could lead to opportunities for longer-term engagements or full-time positions within the company as it continues to expand.

📝 Enhancement Note: The role offers significant opportunity for impact within a growing e-commerce business. The emphasis on "Opportunities for Growth" and "level up your skills" suggests a commitment to professional development, which is particularly attractive for mid-level designers looking to advance their careers in a performance-driven environment.

🌐 Work Environment

Office Type: This is a fully remote contractor role, meaning there is no central office to work from. The "office" is wherever the designer chooses to work, offering maximum flexibility.

Office Location(s): The role is remote, with the primary requirement being availability during EU hours (GMT). This implies that candidates located within Europe or those who can effectively manage their schedule to be available during these hours are preferred. The company itself has a presence in the US, Australia, and Europe, indicating a distributed global team.

Workspace Context:

• Autonomy & Flexibility: The remote, flexible hours model empowers designers to create their ideal work setting and schedule.

• Digital Collaboration Tools: Expect to heavily utilize digital collaboration platforms (e.g., Slack, project management tools, Figma) to communicate and share work with the global team.

• Self-Driven Productivity: Success in this environment relies on self-discipline, effective time management, and the ability to maintain high productivity independently.

• Focus on Deliverables: The emphasis is on the quality and timeliness of design deliverables rather than physical presence in an office.

Work Schedule: While the role is full-time (approx. 40 hours/week), the working hours are flexible. The key constraint is the requirement for availability during EU hours (GMT) for meetings and real-time collaboration. This allows for a balance between personal life and professional commitments, but requires careful time management.

📝 Enhancement Note: The "Work from Anywhere" and "Flexible Working Hours" benefits are central to the work environment. This setup appeals to designers who value autonomy and work-life balance, but it also necessitates strong self-management skills and proactive communication to ensure seamless integration with the global team.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A review of your CV and portfolio to assess foundational skills and relevant experience.

• Design Challenge/Portfolio Review: An opportunity to present your portfolio, discuss your design process, and potentially tackle a small design challenge relevant to Happy Mammoth's e-commerce or campaign needs. This will focus on your UI craft, UX thinking, and conversion optimization approach.

• Stakeholder Interview: A discussion with key team members (e.g., Marketing Manager, Head of Digital) to assess cultural fit, communication skills, understanding of business goals, and ability to integrate into a global, remote team.

• Final Discussion/Offer: A final conversation to clarify terms, expectations, and extend an offer.

Portfolio Review Tips:

• Curate for Impact: Select 3-5 of your strongest projects that best showcase your UI/UX skills, e-commerce/DTC experience, and conversion-focused design thinking.

• Tell a Story: For each project, clearly articulate the problem you were solving, your role and process, the design solutions you implemented, and the measurable outcomes or impact achieved. Use visuals effectively to guide the viewer.

• Highlight Figma Proficiency: Demonstrate your use of Figma for design, prototyping, and collaboration.

• Emphasize Conversion: Explicitly detail how your design decisions contributed to conversion optimization, improved user engagement, or other key business metrics.

• Showcase UI Craft: Ensure your visual design skills are evident – clean layouts, effective typography, thoughtful color usage, and attention to detail.

• Be Prepared for UX Questions: While the focus is UI, be ready to discuss your UX rationale and how you approach user-centered design.

Challenge Preparation:

• Understand the Business: Familiarize yourself with Happy Mammoth's products, brand, and target audience. Visit their website and analyze their current design.

• Focus on Conversion: If given a challenge, think about how to drive user action, improve clarity, and build trust through design.

• Articulate Your Process: Be ready to explain your thought process, design decisions, and how you would approach a given problem within the context of e-commerce and brand goals.

• Demonstrate Agility: Show that you can take feedback and iterate on your ideas quickly.

📝 Enhancement Note: The emphasis on a "strong portfolio of digital and web design work" and specific requirements for e-commerce/DTC experience means the portfolio review will be a critical gate. Candidates should prepare to not only show their work but also to articulate the strategic thinking and business impact behind each project.

🛠 Tools & Technology Stack

Primary Tools:

• Figma: This is the core design tool mentioned, essential for UI design, prototyping, and collaborative workflows. Expect to use it for all visual design tasks, creating design systems, and generating assets.

• Prototyping Tools (likely within Figma): For creating interactive prototypes to simulate user flows and test design concepts.

Analytics & Reporting:

• Web Analytics Platforms (e.g., Google Analytics, Adobe Analytics): While not directly a design tool, a good UI/UX designer should understand how to interpret data from these platforms to inform design decisions and measure the impact of their work.

• Heatmapping & User Session Tools (e.g., Hotjar, Crazy Egg): Understanding user behavior on the website through these tools can provide valuable insights for design improvements.

CRM & Automation:

• E-commerce Platforms (e.g., Shopify, WooCommerce): Familiarity with common e-commerce platforms and their design constraints is beneficial.

• Marketing Automation Tools (e.g., Klaviyo, Mailchimp): Understanding how campaign creatives will be implemented within email or other marketing automation systems can inform design choices.

📝 Enhancement Note: Proficiency in Figma is a non-negotiable requirement. Understanding analytics and e-commerce platforms is crucial for a designer focused on conversion optimization, as it allows them to make data-informed decisions and measure the effectiveness of their designs in a real-world business context.

👥 Team Culture & Values

Operations Values:

• Creativity & Innovation: The company encourages a boundless creative environment, valuing fresh ideas and innovative solutions.

• Customer Health & Well-being: A core value is empowering clients to achieve lasting health transformations, meaning design should reflect and support this mission.

• Excellence & High Standards: The emphasis on "high-quality designs" and a "high standard for visual quality" indicates a commitment to delivering exceptional work.

• Efficiency & Impact: The focus on conversion optimization and business impact means designs are expected to be effective and contribute directly to company goals.

• Global Collaboration & Diversity: Working with a diverse, international team fosters an environment of varied perspectives and collaborative problem-solving.

Collaboration Style:

• Remote & Asynchronous: Expect a blend of synchronous (during EU hours) and asynchronous communication, leveraging digital tools for seamless collaboration across time zones.

• Feedback-Oriented: The requirement to "Adapt and improve designs quickly based on feedback" suggests an open culture where constructive criticism is valued and acted upon.

• Cross-Functional Integration: Designers will work closely with marketing, product, and potentially other teams, requiring strong communication and the ability to understand different perspectives.

• Agile & Iterative: The pace of work likely involves iterative design cycles, responding to business needs and market feedback.

📝 Enhancement Note: The company's values emphasize innovation, customer impact, and high performance. For a designer, this means not only creating beautiful visuals but also ensuring those visuals serve a purpose and contribute to the company's mission and business objectives within a collaborative, global, and remote framework.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing UI Craft with UX Strategy: Effectively integrating strong visual design with user-centered principles and conversion goals.

• Remote Collaboration: Maintaining seamless communication and effective collaboration with a distributed global team across different time zones.

• Rapid Iteration Cycles: Adapting quickly to feedback and evolving business priorities in a fast-paced e-commerce environment.

• Maintaining Brand Consistency: Ensuring a cohesive visual identity across a growing range of digital touchpoints and campaigns.

• Driving Conversion through Design: Demonstrating a direct, measurable impact of design on sales and key performance indicators.

Learning & Development Opportunities:

• Skill Enhancement: Access to "free books, courses, and all the resources you need to level up your skills" provides ample opportunity to deepen UI/UX expertise.

• E-commerce Specialization: Gaining in-depth experience in designing for high-converting e-commerce platforms and DTC brands.

• Global Brand Exposure: Contributing to the visual identity of a brand with international reach.

• CRO Expertise: Developing a stronger understanding and practical application of conversion rate optimization techniques through design.

• Remote Work Best Practices: Honing skills in effective remote collaboration and self-management.

📝 Enhancement Note: This role presents an excellent opportunity for a designer to refine their skills in a commercially focused environment. The challenges are typical of a growing e-commerce business, and the provided learning resources are a significant advantage for professional development.

💡 Interview Preparation

Strategy Questions:

• "Describe your process for taking a rough brief or concept and turning it into a polished UI design, focusing on both visual appeal and user experience." (Prepare to walk through a case study from your portfolio.)

• "How do you approach balancing strong UI aesthetics with conversion optimization goals in an e-commerce context?" (Be ready to cite examples of specific design choices and their intended impact.)

• "Imagine we need to redesign a product page to increase add-to-cart rates. What are the key UX and UI considerations you would prioritize, and how would you test your assumptions?" (Focus on user journey, CTAs, information hierarchy, and visual cues.) Company & Culture Questions:

• "What interests you about Happy Mammoth's mission to promote gut health and how do you see design playing a role in that?" (Connect your passion for design with the company's product and mission.)

• "How do you approach collaboration within a remote, international team, especially when working with individuals in different time zones?" (Highlight your communication strategies and experience with remote tools.)

• "How do you measure the success of your design work, particularly in terms of its impact on business objectives like conversion rates?" (Discuss metrics and how you track design performance.) Portfolio Presentation Strategy:

• Structure for Clarity: Organize your presentation logically, starting with an overview of your experience and then diving into 2-3 key projects.

• Emphasize the "Why": For each project, clearly articulate the problem, your role, your process, the challenges faced, your design solutions, and the results/impact. Don't just show pretty pictures; explain your strategic thinking.

• Highlight Figma Use: Briefly demonstrate how you used Figma for key aspects of the project (e.g., component systems, interactive prototypes, collaboration features).

• Focus on Conversion: Explicitly call out how your designs were intended to drive conversions or improve user engagement on e-commerce platforms.

• Be Ready for Live Critiques/Tweaks: Some interviews may involve making minor adjustments to a design or providing feedback on existing designs, so be prepared to think on your feet.

📝 Enhancement Note: Interview preparation should heavily focus on demonstrating a strong UI portfolio, a solid understanding of conversion-driven UX principles, and the ability to articulate design decisions in business terms. The ability to work effectively in a remote, global team environment will also be a key assessment point.

📌 Application Steps

To apply for this UI/UX Designer position:

• Submit your application through the provided link on the Happy Mammoth careers portal.

• Tailor your CV: Ensure your resume highlights your UI/UX design experience, specifically mentioning your proficiency in Figma, your work with e-commerce/DTC brands, and any experience with conversion optimization. Use keywords from the job description.

• Curate your Portfolio: Select your most relevant UI/UX projects that showcase your skills in digital and web design, with a strong emphasis on e-commerce and conversion. Ensure your portfolio is easily accessible (e.g., via a link) and clearly details your process and impact for each project.

• Prepare your Presentation: Be ready to present your portfolio and discuss your design process in detail during the interview. Practice articulating the business impact of your design decisions.

• Research Happy Mammoth: Familiarize yourself with their products, brand messaging, target audience, and current website to better understand their context and demonstrate your interest.

⚠️ 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.