Open to opportunities

Osahon Jonathan

@osahonjonathan

Message

Senior Frontend Developer focused on performant, user-centered web applications.

Nigeria

Message

What I'm looking for

I seek roles where I can lead frontend delivery, optimize large-scale architectures, mentor teams, and build performance-first, user-centric products.

I am a results-driven Senior Frontend Developer with over 5 years of experience building fast, scalable, and user-focused web applications across finance, insurance, and HR tech domains. I excel at bridging product vision and technical execution, improving performance, reducing technical debt, and delivering modular, reusable frontend systems.

I lead frontend delivery, mentor junior developers, and advocate for design systems and performance-first principles. Recent achievements include modernizing legacy codebases, implementing Angular micro-frontends for online banking, and improving transaction processing efficiency and UX across multiple high-volume platforms.

Experience

Work history, roles, and key accomplishments

Current

Senior Frontend Developer

Current

Stanbic IBTC Bank

Oct 2025 - Present (1 month)

Led frontend delivery of modular Angular micro-frontends for the bank's online banking ecosystem, implementing secure OTP flows and enhancing funds transfer UX across features.

Angular Reactive Forms TypeScript RxJS UI UX API Integration Responsive Design

Frontend Developer

Polaris Bank

Feb 2023 - Jul 2025 (2 years 5 months)

Developed high-volume merchant transaction portals and back-office platforms using Angular and jQuery, improving transaction processing efficiency and reducing user wait time by 40%.

Angular jQuery TypeScript API Integration State Management Performance Optimization Payments

Frontend Developer

SBSC

Jan 2024 - Sep 2024 (8 months)

Led development of a responsive ERP web application and scalable UI components for HR, Finance, and Operations, improving operational efficiency and reducing user errors.

React Angular Responsive Design UI Components Performance Optimization Git Testing

Frontend Developer

Abiola Soft Limited

Oct 2021 - Dec 2023 (2 years 2 months)

Designed and implemented scalable frontend solutions, improving usability, accessibility, and code reliability through modular architecture and peer code reviews.