Open to opportunities

Jefferson Onunwa

@jeffersononunwa

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Frontend Engineer and UI Architect building scalable, type-safe React systems and enterprise B2B interfaces.

Nigeria

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What I'm looking for

I’m looking to build scalable, type-safe React frontends for enterprise B2B products—especially with AI workflows. I want a team where I can own architecture, collaborate across functions, and mentor others while keeping performance, accessibility, and low technical debt.

I’m a Results-driven Frontend Engineer and UI Architect specializing in building highly scalable, type-safe client systems and enterprise B2B interfaces. I focus on React and TypeScript, with modern UI patterns using Tailwind CSS and Framer Motion.

In my current role as a Frontend Engineer at AxiomVault AI, I lead frontend execution and team sprint cycles for advanced B2B SaaS platforms. I architect high-density data visualization and anomaly detection interfaces, driving architectural planning and technical mentorship to improve UI component delivery and reduce audit case review times.

Before that, I’ve built and maintained responsive corporate and institutional web platforms, refactored legacy codebases to modern standards, and improved performance in client-side architectures. I also integrate AI workflows using LLM integrations, prompt engineering, and AI automation to optimize frontend architectures for performance, accessibility, and minimal technical debt.

Experience

Work history, roles, and key accomplishments

Current

Frontend Engineer

Current

AxiomVault AI

Jan 2026 - Present (7 months)

Lead frontend execution and sprint cycles for advanced B2B SaaS platforms. Architect type-safe, predictable UI state management for enterprise workflows and anomaly detection interfaces, and mentor teammates to improve UI component delivery.

TypeScript Frontend Architecture State Management Data Visualization Anomaly Detection Technical Mentorship

Financial Operations & ERP Specialist

PacknPay International Limited

Oct 2025 - May 2026 (7 months)

Managed financial operations and performed complex data reconciliations using Odoo and Zoho ERP. Applied this enterprise financial systems experience to inform data-heavy dashboard architecture.

Odoo Zoho Finance Operations Data Reconciliation Cost Control Enterprise Systems

Frontend Web Developer

Premium Esowp Limited

Apr 2023 - Feb 2024 (10 months)

Engineered and deployed scalable corporate and institutional web platforms. Built and maintained 10 responsive enterprise websites and refactored legacy codebases to modern standards, reducing production time from 3 hours to 30 minutes across 200 outputs.

HTML5 Refactoring

Independent Frontend Developer

Freelance

Oct 2022 - Mar 2023 (5 months)

Managed end-to-end client-side frontend architecture for independent contracts. Reduced application load times by 30% using performance optimization, dynamic data handling, and RESTful API integrations while delivering mobile-first, accessible interfaces.

Performance Optimization Dynamic Data Handling API Integration Accessibility

Frontend Developer Intern

Digitalnotion Systems

Jan 2021 - Jan 2022 (1 year)

Built dynamic, mobile-first responsive web applications during an internship. Improved user experience through usability testing, iterative design changes, and cross-device compatibility debugging.

Usability Testing Responsive UI

Education

Degrees, certifications, and relevant coursework

National Youth Service Corps (NYSC)

National Youth Service Corps (NYSC), National Service

2024 - 2025

Completed mandatory National Youth Service Corps (NYSC) in Port Harcourt (Apr 2024–Mar 2025). Demonstrated civic commitment and readiness for corporate employment.