I design and ship web applications from the ground up: admin panels, client portals, internal operational tools and multi-tenant SaaS products. Every line of code is written and maintained by me directly, with no handoffs between teams.
Off-the-shelf SaaS tools work well up to a point. Once a business process is specific enough to require its own logic, integrations and data model, a custom application stops being a luxury and becomes the way to regain control of the process.
I build API-first applications with a clean separation between the data layer, business logic and interface. That structure makes it easier to add a mobile app, external integrations or another development team later without rewriting the whole system.
Infrastructure and data storage are designed with GDPR in mind from the start of the project, not bolted on at the end. Authentication, authorization and event logging are built into the architecture rather than added as an afterthought.
An application needs monitoring, dependency updates and responses to real usage patterns after launch. I offer ongoing technical care, or hand over the code and documentation to an internal team in a clear, usable form.
Most custom applications need to talk to something else: an ERP, a payment provider, an existing auth system, or third-party APIs. I design integrations to be explicit and observable, so failures are visible instead of silent.