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Hi, I'm Excel Nwachukwu, a frontend and mobile experience engineer with over 3+ years of experience building and scaling financial, cross-platform, and web experiences for thousands of daily active users. I specialize in React.js, Next.js and Flutter, with a focus on bridging technology, compliance and strategy to deliver high-impact features from concept to production, even in low-bandwidth locations. I thrive in fast-paced, high-growth environments, wearing multiple hats and tackling diverse technical and product challenges to ship reliable, accessible experiences. I am comfortable wearing multiple hats and tackling diverse technical and product challenges within fast-paced, high-growth environments.…Hi, I'm Excel Nwachukwu, a frontend and mobile experience engineer with over 3+ years of experience building and scaling financial, cross-platform, and web experiences for thousands of daily active users. I specialize in React.js, Next.js and Flutter, with a focus on bridging technology, compliance and strategy to deliver high-impact features from concept to production, even in low-bandwidth locations. I thrive in fast-paced, high-growth environments, wearing multiple hats and tackling diverse technical and product challenges to ship reliable, accessible experiences. I am comfortable wearing multiple hats and tackling diverse technical and product challenges within fast-paced, high-growth environments.

Excel Nwachukwu

Front-End Developer, Web Developer, App Developer, +3

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Hi, I'm Excel Nwachukwu, a frontend and mobile experience engineer with over 3+ years of experience building and scaling financial, cross-platform, and web experiences for thousands of daily active users. I specialize in React.js, Next.js and Flutter, with a focus on bridging technology, compliance and strategy to deliver high-impact features from concept to production, even in low-bandwidth locations. I thrive in fast-paced, high-growth environments, wearing multiple hats and tackling diverse technical and product challenges to ship reliable, accessible experiences. I am comfortable wearing multiple hats and tackling diverse technical and product challenges within fast-paced, high-growth environments.…Hi, I'm Excel Nwachukwu, a frontend and mobile experience engineer with over 3+ years of experience building and scaling financial, cross-platform, and web experiences for thousands of daily active users. I specialize in React.js, Next.js and Flutter, with a focus on bridging technology, compliance and strategy to deliver high-impact features from concept to production, even in low-bandwidth locations. I thrive in fast-paced, high-growth environments, wearing multiple hats and tackling diverse technical and product challenges to ship reliable, accessible experiences. I am comfortable wearing multiple hats and tackling diverse technical and product challenges within fast-paced, high-growth environments.

Available to hire

Hi, I’m Excel Nwachukwu, a frontend and mobile experience engineer with over 3+ years of experience building and scaling financial, cross-platform, and web experiences for thousands of daily active users. I specialize in React.js, Next.js and Flutter, with a focus on bridging technology, compliance and strategy to deliver high-impact features from concept to production, even in low-bandwidth locations. I thrive in fast-paced, high-growth environments, wearing multiple hats and tackling diverse technical and product challenges to ship reliable, accessible experiences.

I am comfortable wearing multiple hats and tackling diverse technical and product challenges within fast-paced, high-growth environments.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Work Experience

Software Developer at FinCode UK

January 1, 2024 - Present

Built RemitJunction, a multi-tenant SaaS platform with Next.js, TypeScript, and Redux, serving financial institutions across Africa and in the diaspora with role-based access for compliance, operations and support teams. Developed, shipped and maintained customer-facing white-label mobile apps Oneworld Finance and related agent apps for iOS and Android. Integrated 5+ payment gateways (TrustPayment, Local Banking APIs, UK Open Banking) and optimized multi-currency transactions using real-time exchange rate feeds and caching. Optimized Flutter apps for iOS and Android, improving performance by 50% through data caching and background sync. Designed and developed progressive KYC/AML onboarding flows, achieving 95% completion rate.

Frontend Developer at Tiquette HQ

July 1, 2023 - November 1, 2024

Architected responsive web applications using React.js, React Query, and Zustand, implementing complex multi-day event booking flows at scale. Integrated third-party services (Mailchimp, Salesforce, Stripe, Paystack) with robust error handling and retry mechanisms. Developed a GDPR-compliant CRM and data collection system with granular consent management and automated data/background sync. Created a multi-ticket gifting feature that increased daily average order value by 25% through seamless UX design.

Frontend & Prototype Engineer at Brainiacs STEM & Robotics

June 1, 2022 - December 1, 2023

Led robotics projects and mentored 200+ students across 3 states. Built automation projects (smart irrigation, robotic sensory cars) and an interactive e-learning platform for Arduino tutorials with student progress tracking. Designed accessible UI components meeting WCAG 2.1 standards to improve usability for diverse learning needs.