Senior Product Designer (UX)

Who we are Lumen Dynamics Inc. is Africa’s all-in-one financial platform, helping 20 million businesses and individuals access seamless payments, banking, credit, cross-border, and business management tools each month. As Nigeria’s largest merchant acquirer, we power most of the country’s point-of-sale (POS) transactions. Through our subsidiaries, Lumen Dynamics Inc. processes over $250 billion in digital payment transaction value annually. About This Role We are looking for a Senior Product Designer (Design System) who thinks at a system level and understands how to create a scalable UI ecosystem that spans multiple products, teams, and platforms. You are not just designing static screens; you are building the foundation of our product user interfaces. In this role, you will take full ownership of our component libraries, interaction models, and cross-platform design consistency. You will act as the bridge between design and engineering, ensuring that our visual assets translate seamlessly into clean, reusable, and accessible production code. Responsibilities UI Craft & Visual Excellence: Maintain an exceptionally high standard for layout, typography, colour, spacing, visual hierarchy, and overall digital finish across all reusable elements. Component Architecture: Design, build, and maintain robust component libraries (buttons, inputs, cards, navigation, forms, tables, etc.) that scale seamlessly across products. Interaction & Motion Design: Define interactive behaviors and state transitions (e.g., hover, focus, disabled, loading, and mobile behaviors) to ensure components feel alive and intuitive. Design Token Management: Structure and maintain design tokens (colours, spacing, typography, border-radius, shadows) to drive consistency between design environments and code. Figma Library Architecture: Organize complex variants, properties, and components within Figma to empower other product designers to build quickly and accurately. Engineering Collaboration: Partner closely with engineering teams to navigate technical constraints across Web, React, Flutter, Android, and iOS/Native app environments. Documentation & Governance: Create clear, comprehensive usage guidelines and documentation outlining when, why, and how components should (and should not) be used. Experience & Background Proven Design System Track Record: Extensive experience building, scaling, and maintaining production-ready design systems rather than just standalone product features. Cross-Platform Expertise: Deep understanding of the constraints and guidelines governing multiple platforms, including Web, iOS, and Android. Systems-Thinking Mindset: A portfolio demonstrating how individual design decisions impact multiple products, scale sustainably, and optimize designer/engineer workflows. Front-End Alignment: Strong familiarity with how developers inspect, build, and consume components in code repositories. Skills & Competencies Expert Figma Proficiency: Advanced knowledge of Figma libraries, auto-layout, components, variants, variables, and library publication. Accessibility Champion: Solid grasp of accessibility standards (WCAG), contrast requirements, and inclusive design principles. Technical Literacy: Familiarity with component-driven frameworks (React, Flutter) and Atomic Design methodology. Communication & Documentation: Excellent writing and presentation skills, with an ability to translate complex design system choices into clear executive-level updates and technical guidelines. What Success Looks Like in This Role High Adoption & Efficiency: Design and engineering teams actively use the system, resulting in significantly accelerated product shipping cycles. Flawless Cross-Platform Consistency: A unified look, feel, and interactive behavior across all customer-facing touchpoints (Web, Android, iOS). Best-in-Class Documentation: A central, living source of truth that leaves no ambiguity regarding design tokens, component rules, or brand compliance. Scalable Architecture: A foundational library that handles future product expansions, rebrands, or theme changes with minimal friction. Why Join Us Competitive compensation, benefits, and career growth opportunities. Fully remote work culture and support for professional development. How to apply: Submit your resume and portfolio showcasing your best work - preferably with fintech or SaaS-related projects. Your portfolio should clearly demonstrate impact, including measurable improvements in user experience, business metrics, or engagement. We want to see end-to-end product thinking, including research, wireframes, prototypes, and final execution.