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maryna_kukenko

Maryna K

@maryna_kukenko

Senior Frontend Engineer

Ukraine
Ukrainien, Anglais
Certaines informations sont présentées en anglais.
À propos de moi
Nice to meet you :) I build production React/TypeScript apps for SaaS and enterprise platforms, from architecture through delivery, with clean, maintainable, performant code. New here on Fiverr, not new to shipping: 3 portfolio projects to look at — a landing page, a React performance case, and FleetPulse — a self-initiated real-time fleet-monitoring dashboard built to stay smooth under 500+ live vehicle updates per second. For feature/UI work, a Figma file or design reference helps me match your existing style. Reliable, clear communicator, committed to quality work.... Plus d’infos

Compétences

m
maryna_kukenko
Maryna K
hors ligne • 
Temps de réponse moyen de 1 heure

Voir mes services

Correction de bugs
I will fix react bugs, add features, or optimize performance fast
De35 $US / projetPlus de détails
Sites Web personnalisés
I will convert figma to a responsive react or HTML landing page
De95 $US / projetPlus de détails

Portfolio

Expérience professionnelle

inoxoft

Frontend Developer

inoxoft • Temps plein

May 2021 - Apr 2025 • 3 yrs 11 mos

Over the past several years, I've delivered production frontend work across security analytics, investment management, and sales/accounting SaaS platforms — often as the sole frontend engineer responsible for a product end-to-end. Key highlights: - Owned frontend architecture for a geospatial security-analytics platform, building interactive maps and data visualizations with OpenLayers, Mapbox, and WebGL - Replaced 30-second polling with sub-second WebSocket updates for real-time data sync between backend and UI - Eliminated UI freezing on large datasets by offloading processing to Web Workers, streaming data via SSE, and batching renders - Led code reviews and technical decisions in a 3-person frontend team, cutting production regressions by ~25% - Built an investment-management SaaS frontend solo, from architecture to delivery, shipping 3–5 features per sprint - Created a reusable Material UI component library used across 15+ screens, cutting new-screen build time by ~20% - Delivered a full sales & accounting platform frontend as sole engineer, integrating a GraphQL API layer and reducing new-screen dev time by ~25% with a reusable component system