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Hi, I am Emmanuel Olaniyi. I am a software engineer with 4+ years of experience building scalable, secure fintech and Web3 applications. I specialize in TypeScript, JavaScript, React, and Node.js, with hands-on experience in RESTful API design, microservices integration, AWS infrastructure, and automated testing. I am passionate about solving real-world payment and financial infrastructure problems in Africa, and I enjoy collaborating across teams to improve engineering quality and impact.…Hi, I am Emmanuel Olaniyi. I am a software engineer with 4+ years of experience building scalable, secure fintech and Web3 applications. I specialize in TypeScript, JavaScript, React, and Node.js, with hands-on experience in RESTful API design, microservices integration, AWS infrastructure, and automated testing. I am passionate about solving real-world payment and financial infrastructure problems in Africa, and I enjoy collaborating across teams to improve engineering quality and impact.

Emmanuel Olaniyi

Full Stack Developer, Web Developer, Front-End Developer, +2

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Hi, I am Emmanuel Olaniyi. I am a software engineer with 4+ years of experience building scalable, secure fintech and Web3 applications. I specialize in TypeScript, JavaScript, React, and Node.js, with hands-on experience in RESTful API design, microservices integration, AWS infrastructure, and automated testing. I am passionate about solving real-world payment and financial infrastructure problems in Africa, and I enjoy collaborating across teams to improve engineering quality and impact.…Hi, I am Emmanuel Olaniyi. I am a software engineer with 4+ years of experience building scalable, secure fintech and Web3 applications. I specialize in TypeScript, JavaScript, React, and Node.js, with hands-on experience in RESTful API design, microservices integration, AWS infrastructure, and automated testing. I am passionate about solving real-world payment and financial infrastructure problems in Africa, and I enjoy collaborating across teams to improve engineering quality and impact.

Available to hire

Hi, I am Emmanuel Olaniyi. I am a software engineer with 4+ years of experience building scalable, secure fintech and Web3 applications. I specialize in TypeScript, JavaScript, React, and Node.js, with hands-on experience in RESTful API design, microservices integration, AWS infrastructure, and automated testing.

I am passionate about solving real-world payment and financial infrastructure problems in Africa, and I enjoy collaborating across teams to improve engineering quality and impact.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Advanced

Work Experience

Fullstack Software Engineer at Etranzact

February 1, 2025 - Present

Rebuilt core fintech dashboards within a payment aggregator platform, improving data clarity for commission tracking and terminal management across thousands of POS agents. Implemented new administrative REST API endpoints for processed terminals and data export, improving operational reporting workflows and backend observability. Designed and maintained scalable frontend architecture using Next.js and TypeScript, ensuring SSR performance and long-term code maintainability. Introduced automated test coverage (Vitest, Cypress), reducing manual QA effort by over 50% and increasing deployment confidence. Conducted regular code reviews and enforced TypeScript standards, directly reducing post-release defects across the team.

Fullstack Software Engineer at HaelSoft

October 1, 2023 - November 30, 2024

Led end-to-end development of a multi-product fintech platform from system architecture to production deployment, directly contributing to 50% revenue growth. Designed RESTful API integrations between a Django + PostgreSQL backend and a React/Next.js frontend, managing complex server-state with TanStack Query. Built a reusable component library using TypeScript, Tailwind CSS, and Radix UI/Shadcn, improving accessibility, design consistency, and development velocity. Implemented SSR and ISR strategies in Next.js to optimize SEO and reduce time-to-interaction for content-heavy pages.

Fullstack Software Engineer at Coinomad

June 1, 2024 - July 31, 2024

Built a Web3 crypto payroll application using React and TypeScript, streamlining onboarding flows and improving conversion by 40%. Engineered a recurring payment scheduling system backed by BullMQ queues, cutting transaction processing time by 35% and improving payroll reliability. Integrated real-time blockchain transaction tracking and QR code payment flows, increasing end-user transparency and trust.

Frontend Software Engineer at Freelance / Remote

April 1, 2022 - September 30, 2023

Led frontend development for a cross-border fintech platform, building a React + Redux architecture that eliminated payment intermediaries and reduced transaction fees. Delivered multiple client projects with scalable, responsive interfaces, achieving up to 25% improvement in user satisfaction and 30% increase in engagement metrics. Collaborated with clients to translate requirements into technical specifications and tangible deliverables.