Hi, I am
John Olorunfemi,
a Software Engineer.
Leading frontend development team at iRecharge Tech Innovations building scalable products across Fintech, SaaS, E-commerce and AI
Accelerate Fintech Platform (Saas): A one stop payment solution for businessess
Accelerate helps businesses collect payments from their customers via multiple channels, seamlessly.
Key Product Features
- Business Management and Compliance:
- Multi-Channel Payments and Wallets:
- Utility Bill Payments:
- Payment Gateway Integration:
Selected Work
Projects that ship.
Full-Stack Engineering of the Oceaned Immigration Consultants Platform
Study Abroad Platform
Engineered the full client-facing platform end-to-end — architecting a multi-step application flow, building reusable form components with Zod validation, and shipping a performant, accessible UI that reduced drop-off and increased form completion.
Frontend Engineering of the iRecharge B2B Payments Dashboard
B2B Payments Platform
Built the high-traffic B2B dashboard supporting secure onboarding and utility payments for thousands of active businesses — focusing on data-dense table views, error handling at scale, and optimistic UI patterns for high-frequency power users.
Experience
iRecharge Tech Innovations
- Lead frontend development for a high-traffic SaaS payment platform supporting secure financial transactions.
- Built and maintained production systems using Next.js, TypeScript, and Redux, improving stability and performance.
- Established coding standards and review processes, reducing production bugs and improving team velocity.
- Designed a dual-environment payment gateway (test/live) for smoother merchant onboarding.
- Strengthened security via CSP with SHA/nonce support, HSTS, and host-header validation.
Oceaned Study Abroad Consultants LTD
- Architected an edtech platform helping students manage study-abroad applications.
- Built end-to-end systems covering frontend, backend, and CI/CD pipelines.
- Developed the corporate website, blog system, and CRM, increasing lead generation.
- Managed deployment using Docker, SSL configuration, and cloud hosting.
Remotewebnet Dynamics
- Designed scalable architectures using Next.js and NestJS for agency clients.
- Built secure APIs featuring authentication, RBAC, and real-time capabilities.
- Optimized system performance through Server-Side Rendering (SSR) and caching strategies.
Bloomrydes In Motion LTD
- Built a subscription management platform using Vue.js (Nuxt) and Vuex.
- Improved payment experience and user flow, reducing friction in subscriptions.
- Collaborated with product teams to deliver core ride-hailing features.
6yr Software Engineer
Building scalable TypeScript, React, and Node.js applications across Fintech, SaaS, and E-commerce — from design system to production.
Frontend Lead
Led engineering teams shipping B2B dashboards, payment gateways, and multi-tenant SaaS platforms for thousands of active users.
ADPList Top 100 Mentor
Mentoring early-career engineers on system design, code quality, and navigating the path to senior roles.
21k+ Youtube Subscribers
Creating engineering tutorials, architecture walkthroughs, and career content for 21k+ developers on YouTube.
6yr Software Engineer
Building scalable TypeScript, React, and Node.js applications across Fintech, SaaS, and E-commerce — from design system to production.
Frontend Lead
Led engineering teams shipping B2B dashboards, payment gateways, and multi-tenant SaaS platforms for thousands of active users.
ADPList Top 100 Mentor
Mentoring early-career engineers on system design, code quality, and navigating the path to senior roles.
21k+ Youtube Subscribers
Creating engineering tutorials, architecture walkthroughs, and career content for 21k+ developers on YouTube.
I'mJohn—aSeniorSoftwareEngineerandFrontendLeadbasedinGermany.Ibuildthecompletestackofmodernwebapplications—fromAPIarchitectureandrelationaldatabasestoperformant,accessiblefrontendsystems.WithoversixyearsofexperienceacrossFintech,SaaS,andE-commerce,IspecialiseinTypeScript,React,andNode.js,withadeepfocusonCI/CDpipelines,containeriseddeploymentswithDocker,andpaymentsystemsthathandlerealfinancialtransactionsatscale.MybackgroundinUXdesignmeanseverytechnicaldecisionstaysgroundedinwhatusersactuallyneed—andwhatthebusinessactuallymeasures.
Tools and Technology
Technical Stack
The core technologies and development tools I utilize to build efficient, scalable, and production ready solutions .
