Available to hire
Senior Frontend Engineer with 8 years of commercial experience building interactive data dashboards, accessibility-compliant B2B platforms, and production React/TypeScript systems. Shipped HIPAA-regulated and security analytics products, focusing on standards, tooling, and team output at scale.
Leads frontend architecture and performance work (GraphQL, eCharts/Highcharts, caching and lazy-loading), implements authentication/access control (Keycloak), and improves engineering efficiency through component libraries, automated test coverage, and CI/CD practices.
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Language
Ukrainian
Fluent
Polish
Intermediate
English
Advanced
Russian
Intermediate
Work Experience
Senior Frontend Engineer at Cato Networks
June 1, 2024 - PresentBuilt complex production network/security analytics dashboards with charts and GraphQL for 1,000+ enterprise customers, providing real-time visibility into threats, traffic, and security posture. Delivered WCAG compliance across core B2B pages including keyboard navigation support. Implemented an LLM-assisted development workflow to scaffold dashboards from Jira specs, reducing initial setup time by ~50% across the team. Reduced initial LCP on older and heavy dashboards (~20–30%) via GraphQL query chaining optimization, Apollo cache tuning, and lazy-loading heavy chart/table components. Established skill-multiplying frontend standards: component/storybook library growth, automated test coverage standards with Cypress and Jenkins CI, and reusable component scaffolding with documentation to cut feature development time.
Frontend Engineer (Lead / Senior) at Klara
January 1, 2024 - June 1, 2024Led frontend for healthcare EHR integration (HIPAA-regulated) scheduling flows connecting patients, doctors, and EHR systems. Migrated scheduling data layer from Redux/Redux-Saga to RTK Query, reducing boilerplate by ~50% and improving state-related bug surface. Decomposed the frontend monolith into microfrontends to enable independent deployments. Integrated Keycloak-based authentication and configured HIPAA-compliant heat/tracking and production monitoring/resolution via DataDog. Maintained and extended an internal component library with strong WCAG AA focus, preparing technical designs and project documentation.
Senior Software Engineer (Frontend / UI Lead) at Arcarta
January 1, 2023 - September 1, 2023Built an end-to-end UI from zero to launch for a UK-based art market due-diligence B2C platform, defining the frontend stack (TypeScript, React, React Query, Zustand, Tailwind UI, Next.js). Implemented role-based access, Keycloak auth, and API contracts; configured Webpack build optimization. Collaborated with the CTO on product decisions, tested backend endpoints via Postman, and prepared detailed reports for edge cases. Transitioned the project to in-house teams with full technical documentation.
Frontend Migration / Analytics Platforms Engineer at Datawiz.io
August 1, 2022 - January 1, 2023Led a frontend migration from AngularJS to a modern React stack for a multi-service retail analytics BES platform. Built dynamic dashboard and chart builders supporting 700+ retail metrics with Highcharts.js to enable customizable analytics views across the product. Extended a custom Ant Design-based component library with full Jest unit test coverage, led a team of frontend developers, and onboarded new members. Implemented RTL layouts across the platform to support Arabic-speaking markets.
Engineering Intern / Software Engineer Intern at IT Consulting (S/P/E/Side projects)
January 1, 0001 - January 1, 0001Developed side projects including PrismamAMR/CT viewer with AI analysis via cloud MCP; implemented Three.js and TSMCP query parsing with DSL support.
Junior Software Engineer (Full Stack / Frontend) at GabSoft (On-site)
January 1, 0001 - January 1, 0001Education-focused projects and internships; developed backend and frontend using Node.js, Angular, PostgreSQL, and TypeScript/JavaScript, along with SCSS and related tooling.
Full Stack / Mobile SE (React Native) at Sapient Pro (On-site)
January 1, 0001 - January 1, 0001Worked across multiple client engagements covering frontend, React Native mobile, and Node.js backend development. E-commerce (personalized drug recommendations) using TypeScript, Node.js, Express.js, MongoDB, and Angular 2+. Social platform with React Native app and web admin panel using Google Maps integration (TypeScript, React, Redux). CRM extension integrating new features into an existing CRM system (JavaScript/Backbone.js) and built real-time admin chat using WebSockets (Socket.IO).
Education
M.S. Economic Cybernetics (B.S./M.S.) at Yurii Fedkovych Chernivts i National University
January 1, 0001 - January 1, 0001B.S. Economic Cybernetics at Yurii Fedkovych Chernivtsi National University
January 1, 0001 - January 1, 0001Qualifications
Industry Experience
Healthcare, Software & Internet, Financial Services, Education, Retail, Telecommunications
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
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