Full-Stack Engineer — Frontend, Backend & Deployment
Most software projects don't fail because of missing features. They fail because of poor structure, slow performance or code that becomes impossible to maintain.
👋 Hello, I am Yohanis and this is exactly the kind of problem I focus on solving.
I work across the full stack — frontend, backend, databases and deployment. Before writing any code I take time to understand what is actually broken so the solution is solid and built to scale.
What I can help you with
✔ Fix slow or unstable applications
✔ Refactor and simplify hard to maintain codebases
✔ Build scalable backend systems and APIs
✔ Debug and resolve production issues
✔ Develop full-stack applications from idea to deployment
How I work
✔ I focus on understanding the real problem first
✔ I keep solutions simple and practical
✔ I write clean maintainable code
✔ I communicate clearly and deliver on time
I have worked on fintech systems, service platforms and custom web applications where performance and reliability are critical.
If you need someone who focuses on solving the right problem, feel free to reach out.
Things I've built and shipped
Boingo AI
AI-driven PropTech SaaS that automates property data discovery and management with LLM-powered scraping, a custom CRM and a subscription system. The company raised $1,000,000 USD in a seed round. As Backend Engineer, I built RESTful APIs with Node.js, Express and Postgres for authentication, listings, subscriptions and analytics — integrated Stripe and crypto payments, AI chatbots, secure scraping APIs, JWT/OAuth2 security, Algolia search and Redis caching.
Have a project idea or just want to say hi?
Let's work together
Available for freelance projects, collaborations, and full-time opportunities. Feel free to reach out through any of the channels below.
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