Dennis is available for hire
Hire DennisDennis Tamunotonye Dickson
Verified Expert in Design
Designer
Lagos, Nigeria
Toptal member since November 2, 2021
Bio
Dennis is a product designer who has worked for three financial institutions and four startups with demonstrable work in UX design, UI design, and UI development in multiple industries. He utilizes a user-centered approach to complete his work. Dennis is passionate about making mobile and web applications usable and accessible to everyone.
Experience
- UI Design - 9 years
- Responsive Web Design (RWD) - 9 years
- UX Design - 9 years
- Finance - 8 years
- SaaS - 8 years
- Mobile UI Design - 8 years
- Enterprise Design - 6 years
- Cryptocurrency - 5 years
Portfolio
Work Experience
Product Designer
2025 - PRESENT
Sterling Bank
- Created a unified design system for embedded finance interfaces across web and mobile, improving design-to-development handoff efficiency by 28%.
- Led the end-to-end design process for the bank’s first embedded payment API experience, resulting in a 40% increase in third-party developer adoption within six months.
- Collaborated with compliance and legal teams to integrate regulatory requirements seamlessly into UI flows, reducing approval delays by 50%.
- Delivered responsive designs for a real-time transaction monitoring tool, enabling merchants to track payouts and settlements with 95% accuracy in data display.
- Redesigned the partner onboarding journey to align with new KYC/AML requirements, reducing drop-offs at the identity verification stage by 22%.
- Prototyped and validated new card issuance features that allowed partners to offer branded debit cards within 48 hours, shortening the time-to-market by 50%.
Technologies: Figma, A/B Testing, Usability Testing, Responsive UI, Responsive Web Apps, Responsive Design, Design Systems, Enterprise Design, Enterprise SaaS, Pitch Deck Design, Web Application Design, Web Usability, Figma, Artificial Intelligence as a Service (AIaaS), Onboarding, User Onboarding, User Experience Design, Chatbot Conversation Design, Canva, Online Banking, Website Design, AI Design, Financial Products
UX Designer
2023 - PRESENT
Nokhouse
- Designed user interfaces for diverse products, including machine learning, artificial intelligence (AI), SaaS, B2B, and B2C solutions.
- Worked with clients from various industries, including eCommerce, franchises, NGOs, recruitment, and management consulting.
- Partnered with businesses to help unpack their ideas through discovery and ideation phases.
- Collaborated with multidisciplinary teams and product owners to deliver intuitive interfaces and establish effective design practices within the design teams, ensuring a cohesive customer experience (CX).
Technologies: A/B Testing, Accessibility, App UX, Web UI, UX Audits, UI Audits, User Testing, Remote User Testing, Information Architecture (IA), User Research, Qualitative Research, Quantitative Research, Mobile, Mockups, SaaS Design, Software as a Service (SaaS), Point of Sale, Complex Web Systems, Journey Mapping, Web, Creative Tech, Learning Management Systems (LMS), Feature Prioritization, Consumer Products, Property Management, Color Palettes, Business Services, Mobile Apps, Zapier, Artificial Intelligence (AI), Workflow, CRM Design, Color Theory, Next.js, Front-end, General Data Protection Regulation (GDPR), React, TypeScript, Mobile App UI, Component Libraries, Front-end Development, Responsive Design, MVP Design, Blockchain & Cryptocurrency, Pitch Deck Design, Crypto, Minimum Viable Product (MVP), Web Application Design, Web Usability, Figma, Artificial Intelligence as a Service (AIaaS), Onboarding, User Onboarding, User Experience Design, Chatbot Conversation Design, Canva, Education, Website Design, AI Design
UX/UI Designer
2026 - 2026
Early Bird College
- Designed and optimized multiple core user journeys, including college discovery, application planning, counselor engagement, progress tracking, and task management workflows.
- Conducted user research and stakeholder workshops with two core participants to identify pain points, validate assumptions, and prioritize feature development.
- Defined dashboard and reporting experiences that surfaced key metrics, milestones, and counselor activity, enabling users to monitor progress toward college application goals.
- Mapped and documented multiple user flows and edge cases, ensuring seamless experiences across creation, editing, deletion, and management of planning artifacts.
Technologies: UX Design, Figma, UI Design, Product Design, Canva, User Experience (UX), Responsive Web Design (RWD), Web App UX, Website Design, AI Design
Lead Designer
2019 - 2023
Protocoh
- Designed a cryptocurrency payment platform allowing anyone to send stablecoins to bank accounts and mobile money wallets across 50 countries.
- Oversaw the design team charged with designing and building client-facing sides of the company's products.
- Developed the design system for the company with reusable design components and assets that can be used for multiple projects.
Technologies: Figma, Responsive Web Design (RWD), Design Systems, Cryptocurrency Payments, Web Design, UI Design, UX Design, Financial UX, Digital Banking, High-fidelity Mockups, Product Design, Web Development, Mobile UX Design, Web UX Design, Web UI Design, Web App UX, Web App UI, User Flows, Mobile UI, Finance, Mobile App Design, Mobile UX, Prototyping, Fintech, Mobile Money, UI Components, User Journeys, Card Payments, User Authentication, Landing Page Design, Landing Pages, Websites, Agile, eCommerce, DApps, Tailwind CSS, App Design, Decentralized Applications, Cryptocurrency Exchanges, Mobile Wallet, Branding, Cryptocurrency, Web 3.0, UX Research, CSS, User Experience (UX), User Interface (UI), UX Testing, A/B Testing, Dashboard Design, Dashboards, HTML, Web UI, SaaS, User-centered Design (UCD), SaaS Design, B2B, Visual Design, Android, iOS, User Validation, UX Strategy, User Interviews, Research Reports, Qualitative Research, Quantitative Research, Qualitative Reports, Blockchain, UX Wireframes, Layout Design, Style Guides, Design Leadership, Usability, Logo Design, Interaction Design (IxD), Mockups, Complex Web Systems, Information Architecture (IA), Web, Feature Prioritization, Color Palettes, Mobile Apps, Zapier, Artificial Intelligence (AI), Workflow, CRM Design, Color Theory, Next.js, Front-end, React, TypeScript, Mobile App UI, Component Libraries, Responsive Design, MVP Design, Blockchain & Cryptocurrency, Pitch Deck Design, Crypto, Minimum Viable Product (MVP), Web Application Design, Web Usability, Figma, Onboarding, User Onboarding, User Experience Design, Website Design
UX/UI Designer
2022 - 2022
ClinqGold
- Created reusable design components and assets used for the project as required by the client.
- Made user journeys with a keen focus on organization, planning, and visual designs for the application.
- Managed the project and client expectations with clearly defined timelines, estimates, and milestones.
Technologies: Figma, User Experience (UX), User Interface (UI), UX Design, UI Design, User Flows, User Journeys, App Design, DApps, Tailwind CSS, Dashboard Design, Dashboards, Web UI, User-centered Design (UCD), Visual Design, Blockchain, Accessibility, Interactive Charts, Style Guides, WordPress, Design Leadership, Usability, Websites, Interaction Design (IxD), Mockups, Journey Mapping, Color Theory, General Data Protection Regulation (GDPR), MVP Design, Blockchain & Cryptocurrency, Pitch Deck Design, Crypto, Minimum Viable Product (MVP), Web Usability, Figma, User Experience Design
UX/UI Designer
2021 - 2022
dYrivaNative (via Toptal)
- Designed a Web 3.0 trading application for the project.
- Created a style guide and reusable components and handed them off for development.
- Implemented necessary and required changes to the design from direct and indirect feedback from all team members.
Technologies: Figma, Dashboard Design, Dashboards, Web UI, User-centered Design (UCD), Visual Design, Blockchain, Interactive Charts, Design Leadership, Usability, Websites, MVP Design, Blockchain & Cryptocurrency, Pitch Deck Design, Crypto, Minimum Viable Product (MVP), Web Application Design, Figma, Onboarding, User Onboarding, User Experience Design
Product Designer (Contract)
2020 - 2021
Roava
- Designed a mobile app for borderless banking and access to send and receive funds in multiple currencies with one account.
- Created the design systems that were used for the project as required by the client.
- Made user journeys with a keen focus on organization and planning, and visual designs for the application.
Technologies: Figma, Adobe Creative Suite, User Experience (UX), User Interface (UI), Data Visualization, User Research, UI Design, UX Design, Financial UX, UI Style Guides, Wireframing, High-fidelity Mockups, Product Design, Mobile Design, User Testing, Web Development, Mobile UX Design, Web UX Design, Web UI Design, Design Systems, User Flows, Mobile UI, Finance, Personal Finance, Mobile App Design, Mobile UX, Prototyping, Fintech, Mobile Money, Chatbox, UI Components, User Journeys, Card Payments, User Authentication, Landing Page Design, Landing Pages, Websites, Agile, App Design, Mobile Wallet, Branding, UX Research, CSS, UX Testing, A/B Testing, HTML, User-centered Design (UCD), Visual Design, Android, iOS, UX Strategy, User Interviews, Research Reports, Qualitative Research, Quantitative Research, Qualitative Reports, Accessibility, Complex Application User Interfaces (UI), Interactive Charts, UX Wireframes, Layout Design, Style Guides, Design Leadership, Usability, Interaction Design (IxD), Mobile, Mockups, SaaS Design, Software as a Service (SaaS), Complex Web Systems, Information Architecture (IA), Journey Mapping, Feature Prioritization, Color Palettes, Mobile Apps, CRM Design, Next.js, General Data Protection Regulation (GDPR), React, Mobile App UI, Front-end Development, Responsive Design, MVP Design, Enterprise Design, Enterprise SaaS, Minimum Viable Product (MVP), Web Application Design, Web Usability, Figma, Onboarding, User Onboarding, User Experience Design, Online Banking, Website Design, Financial Products
Product Designer
2018 - 2020
Mkobo
- Designed a financial wellness application for salary earners to gain access to their earned wages before payday.
- Created and tested the user journey for a financial wellness mobile application focusing on ease of access to funds with an emphasis on authentication and identity verification.
- Reiterated on designs based on feedback from testers to validate the design decisions we implemented in our prototypes.
Technologies: Figma, Adobe Creative Suite, User Experience (UX), User Interface (UI), Web App Design, Data Visualization, User Research, Web Design, UI Design, UX Design, Financial UX, Wireframing, High-fidelity Mockups, Product Design, Mobile Design, Payroll & Benefits, User Testing, Mobile UX Design, Web UX Design, Web UI Design, Web App UX, Web App UI, Design Systems, User Flows, Mobile UI, Finance, Personal Finance, Mobile App Design, Mobile UX, Prototyping, Fintech, Mobile Money, Workday Payroll, Loans & Lending, Chatbox, UI Components, User Journeys, Card Payments, User Authentication, Landing Page Design, Landing Pages, Websites, Agile, eCommerce, Tailwind CSS, App Design, Branding, UX Research, CSS, UX Testing, A/B Testing, Dashboard Design, Dashboards, HTML, Web UI, User-centered Design (UCD), B2B, Visual Design, Android, iOS, User Validation, UX Strategy, User Interviews, Research Reports, Qualitative Research, Quantitative Research, Qualitative Reports, Interactive Charts, UX Wireframes, Layout Design, Style Guides, Usability, Logo Design, Interaction Design (IxD), Mobile, Mockups, Complex Web Systems, Information Architecture (IA), Journey Mapping, Feature Prioritization, Color Palettes, Mobile Apps, CRM Design, Color Theory, Next.js, Mobile App UI, Responsive Design, MVP Design, Pitch Deck Design, Enterprise Design, Enterprise SaaS, Minimum Viable Product (MVP), Web Application Design, Web Usability, Figma, Onboarding, User Onboarding, User Experience Design, Online Banking, Website Design, Financial Products
UI/UX Designer
2018 - 2018
Softcom
- Created the user interface framework for the developers on web application projects with markup and CSS deliverables, as well as assets and front-end specifications.
- Redesigned the website experience for a government organization, supporting new and old users in accessing information quickly and with less confusion.
- Managed the project and client expectations with clearly defined timelines, estimates, and milestones.
Technologies: Adobe Experience Design (XD), Adobe Creative Suite, User Experience (UX), User Interface (UI), Web App Design, Responsive Web Design (RWD), User Research, Sitemaps, Web Design, UI Design, UX Design, Digital Banking, UI Style Guides, Wireframing, High-fidelity Mockups, User Testing, Web Development, State Government, Web UX Design, Web UI Design, Web App UX, Web App UI, User Flows, Finance, Personal Finance, Mobile App Design, Mobile UX, Prototyping, Fintech, Mobile Money, User Journeys, Card Payments, User Authentication, Websites, Agile, eCommerce, App Design, Mobile Wallet, Branding, UX Research, CSS, UX Testing, A/B Testing, Dashboard Design, Dashboards, HTML, Web UI, SaaS, User-centered Design (UCD), SaaS Design, B2B, Visual Design, Android, iOS, User Validation, UX Strategy, User Interviews, Qualitative Research, Quantitative Research, Qualitative Reports, Accessibility, Complex Application User Interfaces (UI), UX Wireframes, Layout Design, Style Guides, Usability, Mockups, Software as a Service (SaaS), Complex Web Systems, Information Architecture (IA), Journey Mapping, Web, Education Technology (Edtech), Creative Tech, Learning Management Systems (LMS), Feature Prioritization, Consumer Products, Color Palettes, Business Services, Mobile Apps, Zapier, Workflow, CRM Design, Color Theory, Next.js, TypeScript, Component Libraries, Front-end Development, Responsive Design, MVP Design, Pitch Deck Design, Enterprise Design, Enterprise SaaS, Minimum Viable Product (MVP), Web Application Design, Web Usability, Figma, Onboarding, User Onboarding, User Experience Design, Chatbot Conversation Design, Website Design
Front-end Developer
2017 - 2018
Rudigo
- Designed and built a custom media player for a client.
- Built and designed the user interface of a school management dashboard.
- Developed user interfaces for a client's eCommerce website.
Technologies: HTML5, CSS3, JavaScript, Adobe Creative Suite, Web Design, UI Design, UX Design, Digital Banking, Web Development, Web UX Design, Web UI Design, Prototyping, User Journeys, User Authentication, Dashboard Design, Dashboards, HTML, Web UI, Visual Design, WordPress, Websites, Web, Education Technology (Edtech), Creative Tech, Learning Management Systems (LMS), Feature Prioritization, Consumer Products, Front-end, Component Libraries, Front-end Development, Responsive Design, Onboarding, User Onboarding, User Experience Design
Front-end Designer and Developer
2016 - 2017
Stellarball
- Redesigned a game that uses crypto-tokens for online players with guides and new features for the game.
- Designed and built the user interface with HTML, CSS, and JavaScript, managing interactions for the game.
- Provided design specifications, and code components for the project.
Technologies: Figma, Adobe Creative Suite, HTML5, CSS3, JavaScript, Web Design, UI Design, UX Design, Digital Banking, Web Development, Web UX Design, Web UI Design, Web App UX, Web App UI, User Flows, Prototyping, User Authentication, Cryptocurrency Payments, Decentralized Applications, Cryptocurrency Exchanges, Cryptocurrency, Web UI, Visual Design, Blockchain, Websites, Front-end, Responsive Design, Blockchain & Cryptocurrency, Crypto, User Experience Design
Education
2011 - 2015
Bachelor's Degree in Mathematics and Statistics
University of Port Harcourt - Rivers, Nigeria
Certifications
MAY 2023 - PRESENT
Data-Driven Design: Quantitative Research for UX
Interaction Design Foundation
NOVEMBER 2022 - PRESENT
Human-computer Interaction
Interaction Design Foundation
Skills
Tools
Workday Payroll, Adobe Creative Suite, Adobe Experience Design (XD), Zapier, Canva, InVision Studio, Adobe CC, Sketch
Languages
HTML5, CSS3, CSS, HTML, JavaScript, TypeScript
Platforms
Figma, Android, iOS, Mobile, Web, WordPress
Industry Expertise
Education Technology (Edtech), Creative Tech, Consumer Products, Education, Restaurants & Dining
Other
Research & Critical Thinking, User Experience (UX), User Interface (UI), Web App Design, Responsive Web Design (RWD), Data Visualization, User Research, Sitemaps, Mobile UI, Finance, UX Design, UI Design, Mobile UX Design, Web UX Design, Web UI Design, Web App UX, Web App UI, Cryptocurrency Wallets, Mobile UI Design, Design Systems, User Flows, Mobile App Design, Mobile UX, Prototyping, Fintech, Mobile Money, Loans & Lending, Volunteering, UI Components, Usability Testing, User Journeys, User Authentication, Card Payments, Cryptocurrency Payments, Human Resource Management Systems (HRMS), News Media, Blog Design, Press Releases, Digital Banking, Web Design, Product Design, Personal Finance, UI Style Guides, Wireframing, High-fidelity Mockups, Mobile Design, Web Development, Landing Page Design, Landing Pages, Agile, eCommerce, DApps, App Design, Decentralized Applications, Cryptocurrency Exchanges, Mobile Wallet, Branding, Cryptocurrency, Web 3.0, UX Research, UX Testing, A/B Testing, Dashboard Design, Dashboards, Web UI, SaaS, User-centered Design (UCD), SaaS Design, B2B, Visual Design, User Validation, UX Strategy, User Interviews, Research Reports, Qualitative Research, Quantitative Research, Qualitative Reports, Blockchain, UX Audits, Accessibility, User Journey Maps, B2C Marketing, Information Architecture (IA), Mobile Apps, Business to Business to Consumer (B2B2C), Framer, UX Wireframes, Layout Design, Style Guides, Design Leadership, Usability, Websites, Interaction Design (IxD), App UX, Remote User Testing, Mockups, Software as a Service (SaaS), Point of Sale, Complex Web Systems, Journey Mapping, Learning Management Systems (LMS), Feature Prioritization, Color Palettes, Artificial Intelligence (AI), CRM Design, Color Theory, Next.js, Front-end, Mobile App UI, Front-end Development, Responsive Design, MVP Design, Blockchain & Cryptocurrency, Pitch Deck Design, Crypto, Responsive UI, Responsive Web Apps, Enterprise Design, Enterprise SaaS, Minimum Viable Product (MVP), Web Application Design, Web Usability, Figma, Onboarding, User Onboarding, User Experience Design, Chatbot Conversation Design, Online Banking, Website Design, AI Design, Financial Products, Statistical Analysis, Critical Analysis, Quantitative Analysis, Financial UX, State Government, Consumer Services, Crowdfunding, Crowdsourcing, Donations, Chatbox, IT Management, Pricing Models, Governance, Festivals, Trading, User Testing, Payroll & Benefits, Tailwind CSS, Complex Application User Interfaces (UI), Interactive Charts, Human-media Interaction, Interactive UX, Logo Design, Property Management, Business Services, General Data Protection Regulation (GDPR), React, Component Libraries, Artificial Intelligence as a Service (AIaaS), B2B2C, Data Analytics, Web Analytics, UI Audits, Workflow
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