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Harmony OrakpoyovwuruHO

Harmony Orakpoyovwuru

Frontend Engineer

450 €/Tag
Berlin, DE
3-7 Jahre

Durchschnittliche Reaktionszeit: 1h

Über Harmony

I’m a Senior Frontend Developer with over 5 years of professional experience specializing in Angular, React, and modern data visualization tools like D3.js and Chart.js. My focus is on building scalable, performant, and user-friendly interfaces for web applications that handle complex data and require clean architecture.

Over the years, I’ve delivered enterprise-grade frontend solutions for a range of domains—from real-time monitoring dashboards to analytics platforms and component libraries. I work confidently with both Angular (v2 to v19) and React, applying best practices in architecture, modular design, and state management using NgRx, NGXS, RxJS, or Redux Toolkit. I’m particularly passionate about turning data into insight through responsive and interactive visualizations, whether with custom SVGs in D3 or dynamic charts in Chart.js.

My typical tech stack includes TypeScript, SCSS, REST/GraphQL APIs, Jest or Cypress for testing, and Git workflows integrated into CI/CD pipelines. I believe in clean, maintainable code and rigorous testing practices, ensuring robust applications that scale. I also have experience leading frontend discussions, conducting code reviews, and mentoring junior developers in cross-functional teams.

Whether you need a frontend expert to craft a high-performance dashboard, optimize an existing Angular application, or build reusable React components for a data-heavy platform, I can help deliver quality software with speed and precision.

I’m currently open to remote or hybrid freelance opportunities across Europe, ideally in projects involving data visualization, real-time interfaces, or advanced UI architectures. Let’s build something impactful together.
  • Englisch

    Muttersprachlich oder zweisprachig

Vor Ort möglich
Berlin (bis zu 50 km)

Projekt- und Berufserfahrung

  • Touchstone Institute,
    Frontend Engineer
    Mai 2025 - Heute (1 Jahr und 1 Monat)
    Canada
    • Developed an Exam Portal for international medical professionals, supporting preparation for IENCAP, IGOEE, and other medical exams required in Canada.
  • Guaranty Trust Bank (GTBank),
    Frontend Engineer
    Juli 2022 - Mai 2025 (2 Jahre und 10 Monate)
    Nigeria
    • Delivered a high-impact Account Opening Module for Non-Resident Nigerians within 3 days using Angular and Tailwind CSS, increasing customer acquisition by 5%.
    • Built a secure API Management Portal for third-party onboarding, implementing OTP verification, RBAC, session tracking, and IP-based restrictions, improving API access security by 60%.
    • Led the migration of Internet Banking from Angular 8 to Angular 19, reducing technical debt and improving frontend performance by 25%.
    • Developed the GT Funds Manager web application for onboarding both GTBank and non-GTBank customers, supporting tens of thousands of users.
    • Optimized UI responsiveness and authentication flow in the Access Manager SSO platform, increasing performance by 10%.
    • Refactored Internet Banking components into reusable Angular modules and enhanced accessibility, boosting performance by 12%.
  • Guaranty Trust Bank (GTBank),
    Junior Frontend Developer
    Januar 2021 - Januar 2022 (1 Jahr)
    • Contributed to bug fixes and Agile feature delivery in Internet Banking, helping close over 90+ tickets.
    • Maintained and updated the Staff Transport Web App (Orange wheels) connecting 5,000+ employees to drivers across multiple branches.

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Ausbildung und Abschlüsse

  • B.Eng.
    University of Benin
    2018
    B.Eng.

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