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Antony User

@antonyuser2

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Frontend software engineer specializing in React, Next.js and scalable UI systems.

Nigeria

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What I'm looking for

I seek frontend roles building scalable, accessible UI systems on React/Next.js with strong cross-functional teams, CI/CD, and opportunities to lead and mentor.

I am a frontend software engineer with over four years building scalable, high-performance web applications using React, Next.js and TypeScript. I focus on component-driven development, reusable design systems, and mobile-first responsive experiences that improve usability and conversion.

I have led frontend delivery for product MVPs, collaborated cross-functionally with backend and product teams, and implemented CI/CD pipelines with GitHub Actions to support deployments to AWS. I mentor peers, create documentation, and drive frontend performance and accessibility improvements.

My track record includes delivering the Centric AI MVP, building subscription/payment integrations, optimizing UI responsiveness, and contributing to engineering productivity through tooling and code-quality initiatives.

Experience

Work history, roles, and key accomplishments

Frontend Software Engineer

CentricAI

Dec 2024 - Nov 2025 (11 months)

Developed intuitive, scalable frontend components for the Centric AI model MVP and improved developer workflows and performance, delivering stable features within fast-paced release cycles.

React Next.js TypeScript CI CD Performance Optimization Accessibility GitHub Actions

Software Engineer

Semicolon

Apr 2024 - Dec 2024 (8 months)

Worked as an embedded frontend engineer collaborating with product stakeholders to deliver feature updates and contributed to frontend performance and code quality improvements.

React TypeScript Frontend Architecture Performance Optimization Agile Collaboration API Integration

Lead Frontend Engineer

Freelance (Upwork)

Dec 2022 - Apr 2024 (1 year 4 months)

Led planning, development, and delivery of user-facing features and reusable component libraries that improved consistency, performance, and mobile responsiveness across client products.

React Next.js TypeScript Component Libraries Performance Tuning Responsive Design Documentation Mentoring

Frontend Engineer

Homefort Energy

Jan 2021 - Dec 2022 (1 year 11 months)

Led development of a web-based MVP for automating gas supply and customer monitoring, implemented a Paystack subscription flow, and improved UI responsiveness and accessibility.

React JavaScript Paystack Integration Performance Optimization Accessibility Responsive Design Debugging CI CD

Frontend Engineer Intern

Yconnector

Sep 2020 - Jan 2021 (4 months)

Designed and developed an e-commerce platform using React and Redux, implemented responsive layouts and conducted A/B tests that improved customer acquisition and engagement.