UI / UX Designer

📍 Job Overview

Job Title: UI / UX Designer

Company: ACI Worldwide

Location: Timisoara, Romania

Job Type: Full time

Category: Product Design / User Experience

Date Posted: March 27, 2026

Experience Level: Mid-Senior (4+ years)

Remote Status: Hybrid

🚀 Role Summary

• Lead interface and user experience design for ACI's eCommerce and omni-Commerce payment solutions, focusing on merchant, partner, and consumer-facing applications.

• Develop intuitive, scalable, and conversion-focused user interfaces for complex payment environments across online, mobile, and in-store channels.

• Collaborate cross-functionally with Product Management, Engineering, and Research teams to translate business and user needs into elegant, high-quality designs.

• Contribute to the evolution and application of ACI's design system to ensure brand consistency and a cohesive user experience across all digital touchpoints.

📝 Enhancement Note: While the role title is UI/UX Designer, the core responsibilities and required experience strongly point to a dedicated UX Designer with significant UI design capabilities, particularly within complex digital product environments like SaaS and FinTech. The emphasis on "leading interface design" and "designing end-to-end user interfaces" suggests a senior contributor role.

📈 Primary Responsibilities

• Design comprehensive user interfaces for eCommerce and omni-commerce products, including merchant dashboards, checkout flows, configuration tools, and operational consoles, ensuring a seamless user journey.

• Create detailed wireframes, user flows, interactive prototypes, and high-fidelity UI mockups that effectively balance usability, scalability, and brand consistency across diverse platforms.

• Optimize user experiences for key performance indicators such as conversion rates, performance efficiency, accessibility compliance (WCAG), and overall usability across various devices and channels.

• Partner closely with Product Managers to define product requirements, shape UX strategy, and ensure design decisions align with strategic business objectives and market demands.

• Collaborate effectively with Engineering teams to ensure design feasibility, provide clear specifications, and oversee the high-quality implementation of designed interfaces.

• Actively participate in product discovery phases, including ideation sessions, design reviews, and roadmap planning, contributing innovative UX solutions.

• Contribute to the development and maintenance of ACI’s design system, enforcing consistency and best practices across all merchant and consumer-facing interfaces.

• Advocate for and apply UX best practices, accessibility standards (WCAG), and relevant platform guidelines to enhance product quality and user satisfaction.

• Integrate user research findings, performance data, and customer feedback into the design process to drive iterative improvements and user-centered solutions.

• Validate design concepts and implementations through usability testing, A/B testing, and continuous feedback loops to ensure optimal user outcomes.

• Design with a global perspective, considering localization, regulatory requirements, and cultural nuances to ensure product relevance and effectiveness in international markets.

📝 Enhancement Note: The responsibilities emphasize a full-cycle UX design process, from discovery and strategy to detailed design, collaboration, and iteration. The focus on "complex payment environments" and "global commerce" signifies a need for strategic thinking and an understanding of intricate user flows and regulatory considerations.

🎓 Skills & Qualifications

Education: While no specific degree is mandated, a Bachelor's degree in Design, Human-Computer Interaction, Computer Science, or a related field is often preferred for roles of this nature, demonstrating foundational knowledge in user-centered design principles.

Experience: 4+ years of progressive experience in User Experience (UX) and User Interface (UI) design, specifically for complex digital products and web-based applications.

Required Skills:

• Proven expertise in designing user interfaces for complex digital products, with a strong emphasis on web-based applications.

• Demonstrated ability to design complex workflows and data-rich interfaces, crucial for intricate payment systems.

• Strong portfolio showcasing interface design work, preferably within the eCommerce, payments, fintech, or SaaS industries.

• Proficiency with modern, industry-standard design and prototyping tools such as Figma, Sketch, or Adobe XD.

• Solid understanding of responsive design principles, web accessibility standards (WCAG), and modern interaction design patterns.

• Excellent communication and collaboration skills, with a track record of working effectively within cross-functional product teams.

• Experience in translating business requirements and user needs into intuitive and effective design solutions.

Preferred Skills:

• Experience with design systems, including contribution to or utilization of established systems.

• Familiarity with user research methodologies and the ability to translate findings into actionable design improvements.

• Understanding of payment processing, financial technology, or related regulated industries.

• Experience designing for global markets, considering localization and cultural nuances.

• Basic understanding of front-end development principles (HTML, CSS, JavaScript) to facilitate collaboration with engineering teams.

📝 Enhancement Note: The requirement for a strong portfolio demonstrating experience in "eCommerce, payments, fintech, or SaaS" is a critical differentiator. Candidates should prepare to showcase projects that highlight their ability to handle complexity, data, and conversion optimization in these specific domains.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Showcase a minimum of 4+ years of UX/UI design experience, with a strong emphasis on web-based applications.

• Include detailed case studies of projects, ideally from eCommerce, payments, fintech, or SaaS sectors, demonstrating your design process and problem-solving approach.

• Highlight your ability to design complex workflows and data-rich interfaces, with clear examples of how you managed this complexity.

• Present end-to-end user interface designs for products such as merchant dashboards, checkout flows, configuration tools, or operational consoles.

• Demonstrate your proficiency with modern design tools (Figma, Sketch, Adobe XD) through the quality and clarity of your presented work.

Process Documentation:

• For each portfolio project, clearly articulate the problem statement, your role and responsibilities, the design process followed (e.g., research, ideation, wireframing, prototyping, testing), and the final solution.

• Emphasize how you collaborated with Product Management and Engineering, detailing communication strategies and decision-making processes.

• Quantify the impact of your designs whenever possible, using metrics related to conversion rates, usability improvements, task completion times, or user satisfaction.

• Document your approach to incorporating user research, data, and feedback into design iterations.

📝 Enhancement Note: A robust portfolio is paramount for this role. It should not only showcase visual design skills but also a deep understanding of UX methodologies, problem-solving capabilities, and the ability to articulate the design process and its business impact. Case studies should be structured to highlight the journey from problem to solution, with measurable outcomes.

💵 Compensation & Benefits

Salary Range: Based on industry benchmarks for experienced UI/UX Designers in Timisoara, Romania, with 4+ years of experience in FinTech/SaaS, a competitive salary range would likely fall between €30,000 - €50,000 annually (gross). This estimate can vary based on specific skills, interview performance, and the exact scope of responsibilities.

Benefits:

• Competitive compensation and benefits package.

• Opportunities for growth and career development within a global organization.

• Participation in an innovative and collaborative work environment focused on transforming the payments ecosystem.

• Potential for professional development through training, workshops, and industry events.

• Exposure to cutting-edge payment technologies and global commerce solutions.

• Standard Romanian employment benefits, likely including:

  • Paid time off (vacation, public holidays)

  • Health insurance contributions

  • Social security contributions

  • Potential for performance-based bonuses Working Hours: The role is listed as Full Time, typically implying a standard 40-hour work week. However, the "Hybrid" work arrangement suggests flexibility in how these hours are structured, with a blend of in-office and remote work.

📝 Enhancement Note: Salary figures are estimates based on general market data for Timisoara and the stated experience level. Actual compensation will be determined by ACI Worldwide. The inclusion of "competitive compensation and benefits package" is standard, but candidates should inquire about specific details during the interview process. The "Hybrid" designation suggests potential for flexible scheduling within the standard working hours.

🎯 Team & Company Context

🏢 Company Culture

Industry: Financial Technology (FinTech) / Payments Processing. ACI Worldwide is a major player in the global payments ecosystem, providing critical infrastructure and solutions for financial institutions and merchants.

Company Size: ACI Worldwide is a large, established enterprise, with a significant global presence. This implies a structured environment with established processes, but also opportunities for impact due to the company's scale.

Founded: ACI Worldwide has a long history in the payments industry, founded in 1975. This longevity suggests stability, deep domain expertise, and a mature understanding of market dynamics.

Team Structure:

• The UI/UX Designer will join the ACI Merchant Products team.

• This team likely includes Product Managers, Engineers (Frontend and Backend), QA Testers, and potentially other UX/UI specialists.

• The role involves close collaboration with Product Management and Engineering, indicating a cross-functional, agile-like development environment.

Methodology:

• Data Analysis and Insights: Designs will be informed by user research, analytics data, and conversion metrics to drive product improvements.

• Workflow Planning and Optimization: A strong focus on designing efficient, intuitive workflows for complex payment processes.

• Automation and Efficiency: While not a direct automation role, the UX design will contribute to operational efficiency for users by simplifying complex tasks.

• Agile development methodologies are likely employed, requiring iterative design and close collaboration with development sprints.

Company Website: www.aciworldwide.com

📝 Enhancement Note: Working for a large FinTech company like ACI Worldwide means operating within a regulated industry that demands high standards for security, reliability, and user trust. The company's established nature suggests a focus on process and scalability, while its "energetic technology culture" implies a commitment to innovation within its domain.

📈 Career & Growth Analysis

Operations Career Level: This role is positioned as a mid-to-senior level UX/UI Designer. It requires significant experience (4+ years) and the ability to lead design efforts for complex products, indicating a contributor role with potential leadership influence within design projects.

Reporting Structure: The designer will likely report to a UX Lead or Design Manager within the ACI Merchant Products division. They will work closely with Product Managers and Engineering teams, requiring strong collaboration and communication skills to navigate project priorities and technical constraints.

Operations Impact: The UI/UX Designer's impact is directly tied to the usability, conversion rates, and efficiency of ACI's payment solutions. By creating intuitive and effective interfaces for merchants, partners, and consumers, the designer directly influences customer satisfaction, adoption rates, and revenue generation for ACI's products. This role is crucial in shaping the user's perception and interaction with ACI's payment ecosystem.

Growth Opportunities:

• Specialization: Deepen expertise in UX/UI design for FinTech, eCommerce, or omni-Commerce payment solutions.

• Leadership: Progress to a Senior UX Designer role, mentoring junior designers, or potentially moving into a UX Lead or Design Manager position.

• Cross-functional Mobility: Gain experience in product strategy, user research, or product management by working closely with these functions.

• Skill Development: Enhance skills in areas like design systems, accessibility, and user research through company-provided training or external opportunities.

• Global Exposure: Work on products used globally, gaining insights into international market needs and design considerations.

📝 Enhancement Note: The role offers a clear path for growth within a specialized domain (payments FinTech). Candidates looking to build a career in UX/UI design for complex, high-transaction environments will find significant opportunities for skill development and career advancement.

🌐 Work Environment

Office Type: The job is listed as "Hybrid," indicating a blend of remote work and in-office presence. This suggests a modern work environment that values flexibility while still promoting in-person collaboration.

Office Location(s): Timisoara, Romania. ACI Worldwide has a significant presence in this region, offering a stable base for hybrid work.

Workspace Context:

• Collaborative Environment: The hybrid model encourages collaboration through scheduled in-office days, team meetings, and brainstorming sessions, fostering a connected team dynamic.

• Operations Tools and Technology: Designers will have access to industry-standard design tools (Figma, Sketch, Adobe XD) and collaborate with engineering teams utilizing common development and project management software.

• Team Interaction: Opportunities for direct interaction with Product Managers, Engineers, and potentially other designers will be available through a mix of virtual and in-person communication channels.

Work Schedule: Standard full-time hours (likely 40 hours per week) with a hybrid arrangement providing flexibility. Specific in-office days may be determined by team needs or company policy, allowing for a balance between focused individual work and collaborative team activities.

📝 Enhancement Note: The hybrid work arrangement is a key aspect of the work environment, offering flexibility. Candidates should be prepared to articulate how they manage their workflow and collaboration effectively in both remote and in-office settings.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A recruiter or hiring manager will likely conduct an initial phone screen to assess basic qualifications, experience, and cultural fit.

• Portfolio Review & Technical Interview: Expect a deep dive into your portfolio. This may involve presenting specific case studies, discussing your design process, problem-solving abilities, and how you've handled complex design challenges. Technical questions about UX/UI principles, design tools, and accessibility may be included.

• Cross-functional Interviews: Interviews with Product Managers and Engineering leads to assess collaboration skills, understanding of business goals, and ability to work within a development lifecycle.

• Final Interview: Potentially with a senior leader or hiring manager to discuss overall fit, career aspirations, and final alignment with the role and company culture.

Portfolio Review Tips:

• Curate Selectively: Choose 3-5 of your strongest projects that best represent your skills for complex digital products, ideally in FinTech, eCommerce, or SaaS.

• Structure Case Studies: For each project, clearly outline the problem, your role, the process (research, ideation, design, testing), the solutions, and the impact (quantify with metrics if possible).

• Highlight Complexity: Showcase projects where you tackled intricate workflows, data-heavy interfaces, or challenging user journeys.

• Demonstrate Tool Proficiency: Be ready to discuss your mastery of Figma, Sketch, or Adobe XD and how you leverage their features.

• Emphasize Collaboration: Explain how you worked with Product Managers and Engineers, detailing your communication and negotiation strategies.

• Accessibility Focus: Clearly articulate your understanding and application of WCAG standards.

Challenge Preparation:

• Be prepared for a design challenge or take-home assignment that simulates a real product problem.

• Focus on demonstrating your structured thinking, problem-solving approach, and ability to iterate based on hypothetical constraints or feedback.

• Practice articulating your design decisions clearly and concisely, explaining the "why" behind your choices.

• Be ready to present your work and defend your design rationale under scrutiny.

📝 Enhancement Note: The portfolio is central to the evaluation process. Candidates must be prepared to articulate their design decisions, process, and the impact of their work in a compelling narrative, especially concerning complex payment solutions.

🛠 Tools & Technology Stack

Primary Tools:

• Design & Prototyping: Figma, Sketch, Adobe XD (Proficiency in at least one is required).

• Collaboration: Tools like Jira, Confluence, Slack, Microsoft Teams for cross-functional team communication and project management.

Analytics & Reporting:

CRM & Automation:

Design Systems:

• Experience with or contribution to design systems is a strong plus, indicating an understanding of scalable and consistent UI design.

📝 Enhancement Note: Proficiency in industry-standard design tools like Figma is a non-negotiable requirement. Candidates should be ready to discuss their experience with these tools and how they integrate them into their workflow for creating complex interfaces and prototypes.

👥 Team Culture & Values

Operations Values:

• Ensure Accountability: Taking ownership of design tasks and project outcomes, ensuring deadlines are met and quality standards are upheld.

• Drives Results: Focusing on delivering designs that lead to measurable improvements in conversion, usability, and overall product success.

• Customer Focus: Prioritizing the needs of merchants, partners, and consumers in all design decisions, aiming to create positive and efficient user experiences.

• Cultivate Innovation: Bringing fresh ideas and creative solutions to design challenges within the payments domain, contributing to product evolution.

• Collaborates: Working effectively with diverse teams (Product, Engineering, Research) to achieve shared goals, fostering a spirit of partnership.

• Courage: Addressing design challenges directly, providing constructive feedback, and advocating for user-centered solutions even when they are difficult conversations.

Collaboration Style:

• Cross-functional Integration: Actively engaging with Product Management and Engineering to ensure designs are aligned with business objectives and technically feasible.

• Process Review: Participating in design reviews, providing and receiving constructive feedback to continuously improve design quality and user experience.

• Knowledge Sharing: Contributing to the design team's collective knowledge, possibly through sharing best practices, design patterns, or insights from user research.

📝 Enhancement Note: ACI Worldwide emphasizes core capabilities that translate directly into expected behaviors and values for its employees. Candidates should align their responses and portfolio examples with these values, particularly regarding accountability, customer focus, and collaboration in a complex product environment.

⚡ Challenges & Growth Opportunities

Challenges:

• Designing for complex, data-rich interfaces within the highly regulated and technical payments industry.

• Balancing the needs of diverse user groups (merchants, partners, consumers, internal teams) with varying technical proficiencies.

• Ensuring global consistency and localization for products used across different regions and cultures.

• Keeping pace with evolving payment technologies and user expectations in a dynamic FinTech landscape.

Learning & Development Opportunities:

• Operations Skill Advancement: Deepen expertise in UX/UI for FinTech, eCommerce, and omni-Commerce, mastering specialized design patterns for payment solutions.

• Industry Conference and Certification Participation: Opportunities to attend industry events or pursue certifications relevant to UX/UI design and FinTech.

• Operations Mentorship and Leadership: Potential to be mentored by senior designers or product leaders, and to mentor junior team members as experience grows.

• Exposure to Global Markets: Gain valuable insights into international product design and user behavior through ACI's global reach.

📝 Enhancement Note: The challenges presented are inherent to working in complex FinTech environments. Candidates should frame these challenges as opportunities for growth and demonstrate their problem-solving approach to overcoming them.

💡 Interview Preparation

Strategy Questions:

• "Describe a complex workflow you've designed. What were the key challenges, and how did you ensure usability and efficiency for the end-user?" (Focus on process, problem-solving, and impact).

• "How do you approach balancing the needs of different user groups (e.g., merchants vs. consumers) when designing a single product?" (Highlight user-centricity and stakeholder management).

Company & Culture Questions:

• "What interests you about ACI Worldwide and the payments industry?" (Demonstrate research into the company and industry).

• "How do you ensure your designs align with business objectives and technical constraints?" (Emphasize collaboration and strategic thinking).

Portfolio Presentation Strategy:

• Storytelling: For each case study, tell a clear story: the problem, your role, the process, the solution, and the outcome.

• Visual Clarity: Ensure your visual aids are clean, professional, and easy to understand. Use annotations to explain key design elements.

• Focus on Impact: Quantify results whenever possible. If exact metrics aren't available, discuss the intended impact and how you would measure it.

• Demonstrate Process: Clearly articulate your design thinking, user research methods, and iterative process.

• Be Prepared for Q&A: Anticipate questions about your decisions, alternatives considered, and how your design addresses specific business needs.

📝 Enhancement Note: Prepare specific examples that align with ACI's core capabilities (Accountability, Drives Results, Customer Focus, Cultivate Innovation, Collaborates, Courage). Your portfolio presentation should serve as a practical demonstration of these values in action.

📌 Application Steps

To apply for this UI/UX Designer position:

• Submit your application through the ACI Worldwide careers portal.

• Customize Your Resume: Tailor your resume to highlight your experience in complex digital products, eCommerce, payments, fintech, or SaaS, and explicitly mention your proficiency with Figma, Sketch, or Adobe XD. Use keywords from the job description.

• Prepare Your Portfolio: Ensure your online portfolio is up-to-date, showcases your strongest work relevant to this role, and includes detailed case studies. Be ready to present specific projects during interviews.

• Research ACI Worldwide: Understand their products, their position in the payments ecosystem, and their company values. This will help you tailor your responses and demonstrate genuine interest.

• Practice Your Interview Responses: Prepare to discuss your design process, collaboration experience, and how you handle complex design challenges, using the STAR method (Situation, Task, Action, Result) for behavioral questions.

⚠️ 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.