Preaster Saheeb

Product Designer with 5+ years of experience shipping end-to-end digital experiences across mobile and web. I care deeply about craft, the kind of attention to detail that makes interactions feel natural, not designed. I've worked across fintech, SaaS, gaming, and Fintech platforms, always with the same core belief: good UX earns trust, and trust drives action.

Now channeling that focus into the non-profit space, lifestyle, and health tech, where clarity, credibility, and accessible content journeys genuinely matter. Currently deepening expertise in AI-assisted design and using AI actively in my own design workflow.

Senior Product Designer 2 at Alphatech (2023-08 – 2026-04)

• Ran client workshops and discovery sessions, translating complex business requirements into clear user flows, content hierarchies, and structured wireframes that non-technical stakeholders could follow and feedback on.
• Identified UX problems through heuristic reviews of existing products and synthesized findings into prioritized, actionable insight reports, reducing design revision cycles by 35%.
• Built reusable design systems and component libraries in Figma that cut design production time by 30% across the team.
• Managed a small design team setting process standards, giving structured critique, and mentoring junior designers to improve both quality and speed of output.

Product Designer + Product Manager at Nexaflex (2024-11 – 2025-12)

• Designed a unified dashboard experience prioritizing clarity, quick actions, and real-time feedback, reducing task completion time by an estimated 25%.
• Integrated AI tools into the design iteration workflow, reducing the product development cycle by 40–60% and delivering first-phase designs 2 weeks ahead of schedule.
• Worked hand-in-hand with engineers throughout, not just at handoff, catching feasibility issues early and ensuring production builds matched the intended experience.
• Drove a 32% increase in user activation by simplifying onboarding in dashboard
• Designed and localized B2B dashboard flows for multi-currency, multi-language users across Europe and Africa

UX Designer at Leadership News (2025-01 – 2026-01)

• Introduced AI-powered content summaries to reduce reading effort, improving engagement by 18% and cutting bounce rate by 12%.
• Conducted user interviews and usability testing to identify friction in the reading experience, synthesising findings into clear recommendations that fed directly into sprint priorities.
• Increased retention rate by 44% via dropoff point analysis using amplitude and 12 user interviews.

UI/UX Designer at UniSwap Marketplace (2023-03 – 2023-11)

• Designed marketplace flows for product browsing, checkout, and payment interactions with a clear focus on reducing friction at every stage of the transaction journey.
• Simplified the mobile checkout flow, improving transaction success rate by 12%, a direct result of reducing steps, clarifying calls to action, and removing ambiguity in form design.
• Led redesign of B2B dashboard and checkout surfaces to reduce friction for merchants by 24%

Product Designer 2 at Linton Starks (2021-09 – 2023-04)

• Reduced new user onboarding time by 25% by restructuring flows, improving labeling, and introducing contextual guidance changes driven by user research and usability testing.
• Conducted ongoing user research and moderated usability testing sessions, feeding insights back into the product roadmap and working with stakeholders to prioritize UX improvements.

UX Design & Product Management – Self-directed learning, industry courses

Product Manager – IBM

Human Anatomy – Bowen University, Iwo, Osun state