Front End Development
Responsive interfaces, accessible components, and performant client apps using modern HTML, CSS, JavaScript, and component-driven frameworks.
Available for professional opportunities
Full-Stack · Android · Cybersecurity
Building secure software across the full stack
I'm mthelder — a developer who ships polished front ends, robust back ends, native Android apps, and security-minded solutions that hold up in production.
- Front End
- Back End
- Android
- Cyber Security
About Me
End-to-end developer with a security-first mindset
I work across the entire delivery lifecycle — from UI and APIs to mobile clients and defensive security practices — so products are fast, maintainable, and built to withstand real-world threats.
Back End Development
RESTful and service-oriented APIs, databases, authentication flows, and scalable server logic designed for clarity and long-term maintainability.
Android Development
Native Android applications with solid architecture, smooth UX, and integration with back-end services and device capabilities.
Cyber Security
Secure coding practices, threat-aware design, hardening, and practical defense — applied from architecture through deployment and ongoing review.
I bring a multidisciplinary approach to every project: designing interfaces users trust, engineering APIs teams can extend, shipping Android experiences that feel native, and embedding security considerations from day one — not as an afterthought.
I value clean documentation, predictable delivery, and code that the next developer can pick up without friction. Whether collaborating with a team or owning a feature end to end, I aim for solutions that are professional, tested, and ready for production.