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Evangeline Mmayie

@evangelinemmayie

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I build production-grade web and mobile products that improve conversion, performance, and user trust.

Nigeria

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What I'm looking for

I'm looking to work with founders, product leads, and engineering teams that care about outcomes over output, where I can take a product from brief to deployed application and build software that performs and lasts.

I've built and shipped production web and mobile products across insurance, fintech, AI tooling, and consumer software, from discovery and architecture through launch.

As a freelance full-stack engineer, I've delivered end-to-end solutions for 15+ clients, spanning REST APIs, database design, authentication, and responsive frontends. My performance work improved average page-load speed by 40% and increased organic traffic by 30%.

At Laferla Insurance Group, I helped reduce main-site load times by 35%, increase organic traffic by 15%, and build internal admin, analytics, and CMS tools that cut content update cycles by 50%. I also contributed to fintech and insurance mobile products focused on accurate, trustworthy financial workflows.

I've modernized AI platform interfaces at AINIRO.IO and built rider and driver apps at Weyz Mobility using React Native, including authentication, payments, real-time ride tracking, and NFC/QR verification. I care about outcomes over output and build products that perform under real-world pressure.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Engineer

Current

Freelance (Self employed)

Jan 2022 - Present (4 years 9 months)

Architected and delivered end-to-end fullstack solutions — spanning REST APIs, database design, authentication systems, and responsive frontends — for 15+ clients across web and mobile platforms.

Drove measurable performance gains through server-side optimization, lazy loading, caching strategies, and SEO best practices, achieving an average 40% improvement in page load speed and a 30% boost in o

Founding Mobile Engineer

Weyz Mobility

Mar 2026 - Jun 2026 (3 months)

Architected and built the rider and driver apps end to end using React Native, owning the full mobile codebase from initial setup through to app store submission.

Designed and implemented the full authentication and authorization flow for both apps, covering secure onboarding and session management for riders and drivers.

Integrated a payment gateway for in-app transactions, enabling riders to p

Frontend Developer

AINIRO.IO

Oct 2025 - Mar 2026 (5 months)

Modernized a legacy agentic platform interface, significantly reducing UI complexity and improving usability across a suite of advanced AI-powered features including vibe coding, repo management, and full-stack project hosting.

Delivered a seamless real-time multimodal chat experience supporting voice, image, and rich content rendering — elevating the product's interactivity and user engagement.

Frontend and Mobile Developer

Laferla Insurance Group

Mar 2024 - Feb 2026 (1 year 11 months)

Collaborated with cross-functional teams (product, design, backend) to build, optimize, and continuously improve the company’s main website, reducing page load times by 35% and driving a 15% increase in organic traffic.

Contributed to the development of a fintech solution handling money transfers, payments, and currency exchange, building intuitive interfaces for complex financial workflows with