I will investigate and fix a scoped javascript or typescript bug


About this gig
A broken form, JavaScript error or failing request can block a feature you need to ship.
I'm Leandro, a Swiss game and software developer and Lead AI Product Engineer (C++) at KRAST GmbH. I work on clearly scoped bugs in existing JavaScript/TypeScript web applications.
Please message me before ordering with the error, steps to reproduce it and the expected result. We will confirm the stack, one issue and the right package.
BASIC: investigation report, reproduction notes and a proposed next step. Diagnosis does not include a guaranteed fix.
STANDARD: one fix agreed in advance, source changes and verification notes.
PREMIUM: the same scoped fix plus regression checks for up to three agreed acceptance cases in that flow.
Each package includes one revision within scope and a concise handover. New features, redesigns, security audits, hosting and ongoing support are separate. Production deployment is only included when explicitly agreed.
AI/API integration work can be discussed as a separate scoped task. Please provide a safe test environment; do not send production passwords in chat.
Respect third-party rights
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Get to know Krabbe
Game and web development, bug fixes and AI integrations
- FromSwitzerland
- Member sinceMay 2020
Languages
English, German, Spanish, French
My Portfolio
FAQ
Should I contact you before ordering?
Yes. Send the expected result, actual error, reproduction steps and runtime/framework versions. I will check whether the issue fits this service before you buy an implementation package.
Does the Basic package include a fix?
Basic is a diagnosis: reproduction notes, findings and the recommended next step. It does not promise that an unknown issue can be fixed. Standard and Premium implement a fix whose scope we have agreed first.
What access and handover are included?
Use a repository or minimal reproduction and a safe test environment. Share secrets through an agreed secure method, not chat. You receive findings or source changes, verification notes and a concise handover. Live deployment and ongoing support are separate unless agreed.
