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VilmosZoltan Kiss
Senior Full-Stack JavaScript Engineer specializing in enterprise SaaS
VincitEötvös Loránd UniversityRemote, Finland15 Years ExperienceSenior Level
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About
Frontend engineer with enterprise B2B and healthcare web experience, specializing in React/TypeScript architectures for complex, permissioned workflows and data-heavy admin dashboards. Has modernized legacy codebases with improved state management (Redux/Zustand/Rematch, IndexedDB caching) and shipped fast Next.js SEO/performance-focused builds under tight deadlines, including measurable bug-ticket reduction via improved error reporting.
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Designed scalable React + TypeScript architecture with JSON-driven configuration for evolving enterprise workflows
Quality-focused engineering via TypeScript foundations, refactoring, linting, and CI checks
Built complex admin dashboards with large tables and multi-step workflows; balanced local vs global state
Handled async data dependencies through careful request sequencing/chaining
Implemented optimistic updates with rollback patterns for table row edits
Improved UX and reduced bug tickets (~20%) by implementing robust toast notifications and better backend error messages surfaced to the UI
Modernized legacy TypeScript UI by removing prop drilling using RematchJS (Redux-based) to simplify contributions and debugging
Delivered Next.js healthcare clinic homepage/component base in 5 days with SEO and performance focus (LCP/FCP) and provided post-launch on-call iteration support
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Experience
Senior Software Engineer · Web ServicesVincit Solutions Oy · Oct 2020 – Aug 2025
Frontend Developer (Enterprise SPA) / VincitEAMVincit Solutions Oy · Sep 2018 – Dec 2020
Frontend Developerildiesign · Oct 2017 – Aug 2018freelance
Founder / E-commerce & EventsYoYoRaven · Jun 2011 – Dec 2020
Ambassador & Product DesignOne Drop YoYos · Jan 2009 – Present
Education
Eötvös Loránd Universitybachelor, Computer Science (2016)