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Chukwuebuka NwajuCN
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Chukwuebuka Nwaju

@chukwuebukanwaju

Design Engineer and Lead Product Designer building cross-platform user-centered products that scale.

Nigeria
Message

What I'm looking for

I’m looking to lead design engineering for product teams—owning end-to-end experiences, scalable design systems, and growth-focused UX with close engineering collaboration, where I can keep shipping polished interfaces and using AI to iterate faster.

I’m a Design Engineer with 5+ years of experience building cross-platform user-centered digital products. I evolved from Product Designer and Frontend Engineer, bridging design and code to create design systems, polished interfaces, and scalable experiences—while leveraging AI to accelerate workflows and iteration.

At Retrographic, I led design and development of core product experiences for Sprocket, delivering the Sprocket Design System and a full UI overhaul across desktop, tablet, mobile, and watchOS. I designed and optimized critical user flows (navigation, onboarding, marketplace, subscriptions, social sharing), driving 123% YoY ARR growth, 30–40% ASO conversion rates, and 345k app installs over 3 years.

As Cofounder/Design Engineering Lead at BuySub, I spearheaded the transition from manual operations to a robust automated marketplace and portal system within three months, single-handedly owning product design, branding, full-stack and database infrastructure. I’ve also freelanced as a Design Engineer/agency collaborator—shaping design systems, technical standards, and production-ready UI/UX—while scaling toward measurable revenue and strong client outcomes.

Experience

Work history, roles, and key accomplishments

BU
Current

Cofounder, Design Lead

BuySub

May 2024 - Present (2 years 1 month)

Spearheaded the transition from manual operations to an automated marketplace and portal system, owning product design, branding, full-stack delivery, and database infrastructure. Scaled revenue 50x from inception and grew MRR into a sustainable recurring revenue base, while driving over 1,000% growth in customer acquisition and social engagement through advertising and social assets.

RE

Lead Product Designer

Retrographic

Jun 2022 - Apr 2025 (2 years 10 months)

Led design and development of Sprocket’s core product experiences, delivering a design system and full UI overhaul across desktop, tablet, mobile, and watchOS. Improved user flows and personalization, contributing to 123% YoY ARR growth, higher ASO conversion (30–40%), and 20% higher conversion with 30% lower drop-off.

PN

Freelance Design Engineer

Prometheus Technology & Studio Nyx

Jan 2022 - Jan 2025 (3 years)

Led design and technical strategy for a hybrid talent agency and technology studio, building design systems, technical standards, and production-ready client experiences. Delivered responsive websites, applications, and a CRM platform for FinTech and EdTech clients while managing projects from concept to delivery.

IG

Product Design Intern

Ingressive for Good

Mar 2021 - Jun 2021 (3 months)

Acted as the sole designer on a cross-functional team to design and launch a web platform connecting tech talent with companies and clients. Conducted stakeholder user research and translated insights into wireframes, prototypes, and high-fidelity designs, iterating on flows to deliver an accessible platform.

Education

Degrees, certifications, and relevant coursework

Nnamdi Azikiwe University logoNU

Nnamdi Azikiwe University

Bachelor of Science, Medical Radiography

Activities and societies: Undergraduate Teaching Assistant, tutoring and mentoring radiography students in equipment handling, imaging protocols, safety, thesis development, and data analysis. Athletic achievements: Silver Medalist (College of Health Sciences Basketball Team — Vice Chancellor’s Cup, 2018) and Silver Medalist (Department of Medical Radiography Basketball Team — Provost’s Cup, 2019).

Completed a BSc in Medical Radiography at Nnamdi Azikiwe University. Thesis focused on the viability of AI in medical radiography, including conducting AI experiments on medical imaging datasets and evaluating diagnostic improvements; recognized as a Top 3 Research Project in 2021.

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