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Fiverr Pro
English
$
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Yohannes B
@john_belete
Fullstack Developer
Ethiopia
English, Amharic
About me
Every business has unique challenges. Your software should reflect them.
I build custom web applications, SaaS products, and AI automation workflows with n8n that solve real business problems. I focus on scalable architecture, secure backend systems, responsive user experiences, clean, maintainable code, and reliable performance. Whether you need a new product, workflow automation, API integration, or improvements to an existing application, I deliver solutions tailored to your goals with clear communication, quality development, and long term support to help your business grow confidently.
Skills
Yohannes B
Offline •
See my services
Automations & Agents
I will build ai workflow automation with n8n, apis and integrations
Custom Websites
I will create a custom web application with react nextjs and nodejs
Portfolio
Work experience
full Stack Developer
Codebase Technologies • Freelance
Jan 2025 - May 2025 • 4 mos
Engineered and maintained a high-performance lab scheduling application utilizing a robust architecture to support 200+ concurrent users, successfully eliminating booking conflicts and reducing overall scheduling management time by 45%. Ensured high availability and system reliability by achieving and maintaining a 99.9% production uptime on Vercel through optimized deployment configurations, diligent serverless function management, and proactive error handling. Spearheaded the integration of GitHub Actions CI/CD pipelines to modernize the development lifecycle, which drastically slashed manual deployment time from 20 minutes to under 2 minutes and accelerated code reviews by automating quality checks and test execution. Conducted thorough, regular code reviews and collaborated within a dynamic 6-person Agile team to rigorously audit existing components, refactor legacy logic, and proactively eliminate system code conflicts. Architected and implemented clean, responsive, and minimalist user interface dashboards using React and Next.js, prioritizing intuitive navigation and world-class UX design patterns to elevate end-user workflow efficiency. Designed and optimized scalable backend REST APIs and secure database integrations, leveraging robust indexing and structured query layouts to guarantee data integrity, automated validation, and lightning-fast server response times. Implemented secure JSON Web Token (JWT) user authentication protocols and role-based access controls to safeguard sensitive platform resources and protect user accounts from unauthorized structural or architectural modifications. Actively participated in daily standalone Agile meetings, sprint planning sessions, and detailed retrospectives, helping bridge technical requirements with clean code execution to ship features ahead of schedule.
