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I'm Excel Nwachukwu, a Frontend & Mobile Experience Engineer who builds financial, cross-platform, and web experiences for thousands of daily users. I specialize in React.js, Next.js, and Flutter, and I enjoy bridging technology, compliance, and product strategy to deliver high-impact features from 0 to 1, even in low-bandwidth environments. I'm comfortable wearing multiple hats and tackling diverse technical and product challenges in fast-paced, high-growth environments, always focused on delivering scalable UI/UX, robust integrations, and performant apps across platforms.…I'm Excel Nwachukwu, a Frontend & Mobile Experience Engineer who builds financial, cross-platform, and web experiences for thousands of daily users. I specialize in React.js, Next.js, and Flutter, and I enjoy bridging technology, compliance, and product strategy to deliver high-impact features from 0 to 1, even in low-bandwidth environments. I'm comfortable wearing multiple hats and tackling diverse technical and product challenges in fast-paced, high-growth environments, always focused on delivering scalable UI/UX, robust integrations, and performant apps across platforms.

Excel Nwachukwu

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

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I'm Excel Nwachukwu, a Frontend & Mobile Experience Engineer who builds financial, cross-platform, and web experiences for thousands of daily users. I specialize in React.js, Next.js, and Flutter, and I enjoy bridging technology, compliance, and product strategy to deliver high-impact features from 0 to 1, even in low-bandwidth environments. I'm comfortable wearing multiple hats and tackling diverse technical and product challenges in fast-paced, high-growth environments, always focused on delivering scalable UI/UX, robust integrations, and performant apps across platforms.…I'm Excel Nwachukwu, a Frontend & Mobile Experience Engineer who builds financial, cross-platform, and web experiences for thousands of daily users. I specialize in React.js, Next.js, and Flutter, and I enjoy bridging technology, compliance, and product strategy to deliver high-impact features from 0 to 1, even in low-bandwidth environments. I'm comfortable wearing multiple hats and tackling diverse technical and product challenges in fast-paced, high-growth environments, always focused on delivering scalable UI/UX, robust integrations, and performant apps across platforms.

Available to hire

I’m Excel Nwachukwu, a Frontend & Mobile Experience Engineer who builds financial, cross-platform, and web experiences for thousands of daily users. I specialize in React.js, Next.js, and Flutter, and I enjoy bridging technology, compliance, and product strategy to deliver high-impact features from 0 to 1, even in low-bandwidth environments.

I’m comfortable wearing multiple hats and tackling diverse technical and product challenges in fast-paced, high-growth environments, always focused on delivering scalable UI/UX, robust integrations, and performant apps across platforms.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

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.