The posting
The Senior Frontend Developer owns Studio, the web application through which operators and Minka's own team work with the ledger: accounts, transfers, rules, keys, reports and onboarding. Studio is a React and TypeScript application with server-side rendering, a shared component library, and automated tests from unit to end-to-end.
The first job is to keep Studio level with the platform, every new capability is analyzed in the Studio team and implemented in a manner that provides usable experiences for different kind of users . Screens are built from the shared component library rather than a one-off markup. Common patterns such as forms, tables, errors and loading states are solved once and reused.
After that comes quality clients can feel. End-to-end tests cover the journeys operators use every day. Daily-use screens meet WCAG AA accessibility. Data-heavy screens have a performance budget and stay within it. Translations are complete.
Later, Studio becomes the operator and onboarding portal for hosted clients, with role-based views, onboarding journeys with status tracking, and white-labelling driven by configuration.
Requirements
Must have:
* 8 or more years shipping production web applications
* Strong React and TypeScript, preferable experience with server-side rendering
* Has built or maintained a component library or design system
* Automated testing, from unit tests to end-to-end
* Accessibility and performance as normal practice, not a special project
* Comfortable with Git, code review practices and CI/CD
Nice to have:
* Some Node.js backend work
* Back-office or operator-facing products, ideally in finance
* Product sense strong enough to push back on a confusing screen



