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: Sofia, Bulgaria

Job Type: FULL_TIME

Category: UI/UX Design, Digital Product Design

Date Posted: 2026-08-17

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

Remote Status: Fully Remote

🚀 Role Summary

• Drive the visual design and user experience for Happy Mammoth's e-commerce platform and marketing campaigns, focusing on enhancing customer engagement and conversion rates.

• Translate creative briefs and campaign concepts into high-fidelity, polished UI designs that align with brand aesthetics and business objectives.

• Optimize existing website elements, particularly product pages, to improve user flow, clarity, and the effectiveness of calls-to-action (CTAs) and trust signals.

• Ensure a consistent and cohesive visual identity across all digital touchpoints, from website interfaces to campaign creatives, across desktop and mobile platforms.

📝 Enhancement Note: While the job title is UI/UX Designer, the description emphasizes a stronger focus on UI craft ("strong UI craft paired with a solid UX foundation," "strong UI design skills"). The role is critical for a growing food tech company focused on DTC sales, making conversion-focused design a key performance indicator. The target candidate likely has experience in fast-paced, results-driven environments, with a preference for B2C e-commerce or DTC backgrounds.

📈 Primary Responsibilities

• Design and iteratively improve product pages to maximize visual appeal, clarity of information, and ease of navigation for a seamless customer journey.

• Develop compelling campaign creatives that effectively communicate brand messaging and drive user action, aligning with marketing objectives.

• Strategically redesign and enhance existing website sections, proactively identifying opportunities to boost user experience, engagement metrics, and conversion rates.

• Transform initial concepts, briefs, and campaign ideas into sophisticated, high-quality designs that meet both aesthetic and functional requirements.

• Apply UX principles to strategically position critical content elements such as CTAs, trust indicators, and benefit statements to optimize user decision-making and drive conversions.

• Architect intuitive user journeys for new pages, ensuring a natural and frictionless flow that guides users toward desired outcomes.

• Maintain and enforce visual design consistency across the entire website and various campaign materials for a unified brand experience.

• Rapidly adapt and refine designs based on constructive feedback, evolving business priorities, and performance data.

• Create responsive designs that ensure optimal user experience and visual integrity across all devices, including desktops and mobile devices.

📝 Enhancement Note: The responsibilities clearly indicate a blend of strategic UX thinking and meticulous UI execution. The emphasis on "conversion-optimised design" and "influencing user behavior" suggests that the designer will be expected to contribute to measurable business outcomes, not just aesthetic improvements. The need to "adapt and improve designs quickly" points to an agile design process and a need for efficiency.

🎓 Skills & Qualifications

Education: While no specific degree is mandated, a Bachelor's degree in Graphic Design, Human-Computer Interaction, Digital Media, or a related field is often preferred in such roles. Equivalent practical experience and a strong portfolio can also be sufficient.

Experience: Minimum of 2-5 years of professional experience in UI/UX design, with a demonstrable track record in digital and web design. Experience in e-commerce, Direct-to-Consumer (DTC) brands, or the health/supplements industry is highly advantageous.

Required Skills:

• Proven expertise as a UI/UX Designer, evidenced by a robust portfolio showcasing digital and web design projects.

• Exceptional UI design skills, characterized by meticulous attention to detail and a high standard for visual quality.

• Strong understanding of core UX principles and methodologies, including user journey mapping and usability best practices.

• Proficiency in designing for conversion optimization, with an understanding of how design elements influence user behavior and decision-making.

• Experience in creating responsive website designs that perform optimally on both desktop and mobile devices.

• High proficiency in Figma for design, prototyping, and collaboration.

• Demonstrated ability to transform abstract concepts or rough briefs into polished, well-executed designs. Preferred Skills:

• Specific experience designing for e-commerce or DTC brands.

• Familiarity with the health, wellness, or supplement industry.

• Experience with A/B testing design variations to optimize conversion rates.

• Basic understanding of front-end development principles (HTML, CSS) to inform design feasibility.

• Experience with user research and usability testing methodologies.

📝 Enhancement Note: The emphasis on Figma is a strong indicator of the primary design tool. The requirement for a strong portfolio is paramount, especially one that highlights e-commerce/DTC success and conversion-driven design. The "bonus" for health/supplements experience suggests the company values domain-specific knowledge.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• A comprehensive portfolio is mandatory, showcasing a range of digital and web design projects.

• Emphasis should be placed on projects demonstrating strong UI craft, visual appeal, and a high standard for quality.

• Include case studies or project examples that highlight your understanding of UX principles and how you applied them to solve user problems.

• Showcase your ability to design for conversion optimization, with examples of how your designs influenced user behavior and business outcomes.

• Clearly demonstrate your experience with responsive design across desktop and mobile platforms.

• Provide examples of translating briefs or rough concepts into polished, final designs. Process Documentation:

• Be prepared to discuss your design process, from initial ideation and research to final design implementation.

• Highlight your approach to user journey mapping and how you ensure a natural, friction-free flow.

• Explain how you incorporate feedback and iterate on designs based on business priorities and performance data.

• Detail your experience using Figma for wireframing, prototyping, and final UI design.

📝 Enhancement Note: The job description explicitly states "CVs must be in English and please also attach your portfolio showcasing relevant web/e-commerce design experience when applying." This makes the portfolio a critical component of the application, and it should clearly articulate the candidate's process and impact, especially in conversion-focused scenarios.

💵 Compensation & Benefits

Salary Range: Given the role is a full-time, remote contractor position in Sofia, Bulgaria, and considering the experience level (2-5 years) and the company's growth phase, a competitive salary range would typically fall between €35,000 - €55,000 annually (approximately 17.500 - 27.500 BGN). This estimate is based on industry benchmarks for UI/UX designers in Eastern Europe with e-commerce experience, adjusted for a remote, contractor status.

Benefits:

• Strong Salary Package: Competitive compensation commensurate with skills and experience.

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

• Work from Anywhere: Full remote flexibility, allowing work from any location globally.

• Vibrant Team: Opportunity to collaborate with a diverse, international, and friendly team.

• Flexible Working Hours: Autonomy to manage personal work schedule to suit individual productivity patterns.

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

• Dynamic Work Environment: Engaging and fast-paced atmosphere with daily opportunities for new challenges.

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

Working Hours: 40 hours per week. While the role is fully remote, candidates must be available during EU hours (GMT time zone). This implies a need for overlap with the core European business operations.

📝 Enhancement Note: The salary range is an estimation based on typical compensation for a mid-level UI/UX designer in Sofia, Bulgaria, with remote work and contractor status. Actual compensation may vary based on the candidate's specific experience, portfolio, and negotiation. The benefits listed are directly from the job description, highlighting the company's attractive remote work and professional development offerings.

🎯 Team & Company Context

🏢 Company Culture

Industry: Food Technology, Health & Wellness, E-commerce (Direct-to-Consumer - DTC). Happy Mammoth operates in the rapidly expanding sector of gut health and microbiome-focused supplements and foods, leveraging technology to deliver health solutions.

Company Size: Happy Mammoth is described as a "rapidly expanding" company with a presence in the US, Australia, and Europe, suggesting a mid-sized to large organization with a global footprint. This implies a structure that can support growth and innovation.

Founded: The founding date is not explicitly provided, but the company's expansion across continents indicates a mature operational capacity and a history of successful market penetration.

Team Structure:

• The operations team is international and diverse, suggesting a distributed workforce model.

• Collaboration likely occurs across various departments such as marketing, product development, and potentially customer service.

• The role reports into a team that values creativity, business impact, and adaptability. Methodology:

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

• Agile Development: The need to "adapt and improve designs quickly based on feedback and business priorities" points towards an agile or iterative design and development process.

• Customer-Centricity: The mission to empower clients with health transformations underscores a customer-centric approach to product and service design.

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

📝 Enhancement Note: Happy Mammoth appears to be a forward-thinking DTC brand in the health and wellness space. The culture is likely dynamic, global, and focused on measurable results. The "food tech" aspect combined with supplements suggests a blend of science and consumer appeal, which the UI/UX designer will need to translate visually.

📈 Career & Growth Analysis

Operations Career Level: This role is positioned as a mid-level UI/UX Designer, requiring 2-5 years of experience. It involves a significant degree of autonomy in design execution and a direct impact on website performance and campaign effectiveness. The focus is on translating business needs into user-centric, conversion-optimized designs.

Reporting Structure: While not explicitly stated, the designer will likely report to a Design Lead, Marketing Manager, or Head of Digital Product, working closely with marketing and product teams to execute campaign and website design initiatives.

Operations Impact: The UI/UX Designer's work directly influences customer acquisition, engagement, and conversion rates for Happy Mammoth's e-commerce platform. Their designs are critical for communicating product value, building trust, and driving sales, thereby having a tangible impact on the company's revenue and growth.

Growth Opportunities:

• Skill Specialization: Opportunity to deepen expertise in e-commerce UI/UX, conversion rate optimization (CRO), and DTC design strategies.

• Cross-Functional Exposure: Collaboration with marketing, product, and potentially data analytics teams to gain a holistic understanding of the business.

• Professional Development: Access to provided resources like books and courses to continuously enhance design skills and stay abreast of industry trends.

• Portfolio Expansion: Building a strong portfolio with successful e-commerce and campaign design projects that can lead to senior design roles or specialized positions.

📝 Enhancement Note: The growth opportunities are framed around skill enhancement and professional development, directly supported by the company's commitment to providing resources. The role offers a chance to make a significant impact on a growing DTC brand, which is attractive for career progression in the digital design field.

🌐 Work Environment

Office Type: Fully Remote. This is a key characteristic, offering complete flexibility in work location.

Office Location(s): While the company has a global presence (US, Australia, Europe), the role is remote, meaning there is no physical office requirement for the designer. However, the candidate must be available during EU hours (GMT).

Workspace Context:

• Flexibility: The primary context is a flexible work environment, allowing individuals to choose their most productive workspace, whether at home, a co-working space, or another preferred location.

• Technology: Access to standard digital design tools, particularly Figma, is assumed. Collaboration will likely be managed through project management and communication platforms.

• Team Interaction: While remote, the company fosters a "vibrant team" culture, suggesting proactive efforts in virtual team building, communication, and collaboration to maintain connection and camaraderie.

Work Schedule: Flexible working hours are offered, allowing individuals to manage their schedules. However, the requirement to be available during EU hours (GMT) means that a core overlap with European business operations is expected.

📝 Enhancement Note: The fully remote nature combined with flexible hours and EU time zone availability defines the work environment. This setup is ideal for self-motivated individuals who can manage their time effectively and maintain strong communication within a distributed team.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: Application review, focusing heavily on the submitted portfolio and CV for relevant e-commerce/DTC experience and UI/UX craft.

• Design Challenge/Portfolio Review: A deeper dive into the candidate's portfolio, potentially including a specific design challenge or a detailed walkthrough of past projects to assess problem-solving skills, design process, and impact.

• Team/Hiring Manager Interview: Discussion about design philosophy, collaboration style, understanding of conversion optimization, and cultural fit with the international team.

• Final Interview: May involve a broader discussion on strategic thinking, contribution to business goals, and alignment with the company's mission.

Portfolio Review Tips:

• Highlight Conversion Focus: Showcase projects where your UI/UX design directly led to measurable improvements in conversion rates, user engagement, or sales for e-commerce or DTC platforms.

• Demonstrate UI Craft: Present visually polished designs with meticulous attention to detail, typography, color theory, and layout.

• Explain Your Process: For each project, clearly articulate your design thinking, user research (if applicable), UX rationale, and how you translated briefs into functional and aesthetic solutions.

• Showcase Figma Proficiency: Include examples that demonstrate your skill in Figma for wireframing, prototyping, and high-fidelity UI design.

• Emphasize Responsiveness: Include examples of designs that are well-adapted for both desktop and mobile experiences.

• Tailor to Happy Mammoth: If possible, subtly align your portfolio's aesthetic and focus with the Happy Mammoth brand's values and target audience.

Challenge Preparation:

• Be prepared to discuss your approach to designing for specific e-commerce scenarios (e.g., product pages, checkout flows, campaign landing pages).

• Practice articulating how your design decisions contribute to business objectives and user satisfaction.

• Familiarize yourself with conversion optimization principles and be ready to discuss how design impacts them.

• Prepare to discuss your experience with responsive design and mobile-first approaches.

📝 Enhancement Note: The portfolio is central to the application process. Candidates should curate it to emphasize their strengths in UI design, conversion optimization, and e-commerce/DTC experience, providing clear narratives for each project.

🛠 Tools & Technology Stack

Primary Tools:

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

Analytics & Reporting:

• While not explicitly required for the designer, understanding how design impacts analytics and reporting metrics (e.g., conversion rates, bounce rates, time on page) is crucial. Familiarity with tools like Google Analytics or similar platforms would be beneficial for interpreting design performance. CRM & Automation:

• Not directly relevant to the designer's primary tools, but understanding how the website integrates with CRM or marketing automation platforms can provide context for design decisions.

📝 Enhancement Note: Figma is the only explicitly mentioned tool, but a strong understanding of how design translates into measurable data and influences user behavior is implied by the role's responsibilities.

👥 Team Culture & Values

Operations Values:

• Creativity & Innovation: Encouraging "creativity knows no bounds" and a "dynamic work environment" suggests a culture that values novel ideas and creative problem-solving.

• Impact & Results: The emphasis on converting users and achieving business goals indicates a results-oriented approach where design directly contributes to company success.

• Collaboration & Teamwork: "Teamwork makes the dream work!" and joining a "vibrant team" highlight the importance of positive collaboration and mutual support, even in a remote setting.

• Health & Well-being: The company's mission to "empower clients to embrace lasting health transformations" suggests a culture that values health, wellness, and making a positive impact on people's lives.

• Flexibility & Autonomy: Offering remote work and flexible hours demonstrates trust in employees and a commitment to work-life balance.

Collaboration Style:

• Global & Remote: Collaboration will be primarily virtual, requiring strong communication skills and proactive engagement across different time zones and cultures.

• Cross-Functional: The designer will work closely with marketing, product, and potentially other teams, necessitating clear communication and the ability to translate design concepts to non-design stakeholders.

• Feedback-Oriented: The expectation to "adapt and improve designs quickly based on feedback" suggests an open culture for constructive criticism and iterative design.

📝 Enhancement Note: The culture appears to be a blend of high-performance expectations (driven by DTC e-commerce goals) and a supportive, flexible remote work environment. The core values revolve around creativity, impact, teamwork, and a shared mission in health and wellness.

⚡ Challenges & Growth Opportunities

Challenges:

• Balancing UI Craft with UX Strategy: Effectively merging strong visual design with user-centered principles and conversion goals requires a nuanced approach.

• Remote Collaboration: Maintaining seamless communication and creative synergy within a globally distributed team can be challenging.

• Fast-Paced Environment: Adapting quickly to evolving business priorities and feedback in a rapidly expanding company requires agility and efficiency.

• Brand Consistency: Ensuring a unified visual identity across diverse digital touchpoints and campaigns requires meticulous attention to detail and strong brand stewardship.

Learning & Development Opportunities:

• E-commerce & DTC Specialization: Gaining in-depth experience in designing for high-converting online sales environments.

• Conversion Rate Optimization (CRO): Deepening understanding of how design impacts user behavior and sales funnels.

• Global Brand Design: Working with an international brand offers exposure to different market perspectives and design considerations.

• Continuous Learning: Access to company-provided books and courses supports ongoing skill development and staying current with design trends and technologies.

📝 Enhancement Note: The challenges are typical for a designer in a growing e-commerce company, particularly in a remote setting. The growth opportunities are substantial, offering a chance to become a specialist in a high-demand area of digital design.

💡 Interview Preparation

Strategy Questions:

• "Describe your process for designing a product page for an e-commerce website, focusing on conversion optimization." (Prepare to discuss user journey, CTA placement, trust elements, visual hierarchy, and responsive design).

• "How do you balance creative UI design with the practical requirements of UX and business goals?" (Be ready to provide examples of trade-offs and how you achieve alignment).

• "Walk us through a campaign creative you designed. What was the brief, your concept, and the outcome?" (Focus on storytelling, rationale behind design choices, and impact). Company & Culture Questions:

• "What do you know about Happy Mammoth and the health/wellness DTC space?" (Research the company's mission, products, and target audience).

• "How do you approach collaboration in a fully remote, international team?" (Discuss communication tools, proactive engagement, and managing time zone differences).

• "How do you ensure visual consistency across different digital platforms and campaigns?" (Highlight your process for style guides, asset management, and attention to detail). Portfolio Presentation Strategy:

• Narrative is Key: For each project, tell a story: the problem, your approach, your solution, and the results. Quantify impact where possible.

• Focus on E-commerce/DTC: Prioritize projects that demonstrate your ability to drive conversions and user engagement in an online retail context.

• Showcase Figma Skills: Be ready to demonstrate specific features or workflows within Figma that were critical to your projects.

• Address UI/UX Balance: Clearly articulate how you integrated strong UI aesthetics with solid UX principles for each case study.

• Be Prepared for Feedback: Show receptiveness to constructive criticism and discuss how you would iterate on designs based on hypothetical feedback.

📝 Enhancement Note: The interview process will heavily weigh the candidate's portfolio and their ability to articulate their design process and its impact on business goals, especially within the DTC e-commerce domain.

📌 Application Steps

To apply for this UI/UX Designer position:

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

• Curate Your Portfolio: Select 3-5 of your strongest UI/UX design projects that specifically highlight your experience in e-commerce, DTC brands, and conversion-focused design. Ensure each project includes a clear case study detailing the problem, your process, your solution, and any measurable outcomes.

• Optimize Your Resume: Tailor your resume to emphasize your proficiency in Figma, your experience with UI and UX principles, and any relevant e-commerce or health/wellness industry background. Use keywords from the job description.

• Prepare Your Portfolio Walkthrough: Practice presenting your selected portfolio projects concisely, focusing on your design rationale, problem-solving skills, and the impact of your work on user behavior and business objectives.

• Research Happy Mammoth: Understand the company's mission, products, and target audience. Be prepared to discuss how your design philosophy aligns with their brand and the health/wellness sector.

⚠️ 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.