David Essien
Backend-leaning full-stack engineer — three years shipping production systems, from API design to financial transaction infrastructure. I like understanding how things work well enough to know how they break, which is pulling me toward network protocols and security research.
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Titan
A borderless invoicing and payments platform for freelancers and businesses working across countries — get paid in stablecoins or crypto in seconds, without the wire transfer delays, FX fees, or account freezes that come with traditional international payments.
LogicVisor
An AI code review tool that gives instant, structured feedback on algorithm solutions — time/space complexity, optimization suggestions, and clear explanations, built for self-taught developers who want to actually understand their code, not just pass a test case.