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Valentyn Rubliuk
Senior Software Engineer
Lviv, Ukraine [open contact info](look above in the "contact info" section) [open contact info](look above in the "contact info" section) t.me/valentyn333

Summary
Senior Software Engineer with 8+ years of experience building web applications across frontend and backend, with
strong expertise in React / Next.js and Vue / Nuxt.js, and additional backend experience with Node.js. Experienced in
frontend architecture, server-side applications, API development, application modernization, and scalable enterprise
solutions. Strong focus on code quality, maintainability, development efficiency, and complex business functionality.
Experienced in leading development teams, collaborating with designers and clients, and working in Agile environments.
Leverages AI-assisted development tools to improve development efficiency, code quality, and problem-solving.
Target Roles: Senior Software Engineer, Software Engineer, Senior Frontend Engineer, Middle Frontend Engineer, Frontend Engineer, Senior React Developer, Middle React Developer, React Developer, Senior Next.js Developer, Middle Next.js Developer, Next.js Developer, Senior Vue.js Developer, Middle Vue.js Developer, Vue.js Developer, Senior Full Stack Engineer, Middle Full Stack Engineer, Full Stack Engineer, Senior Node.js Developer, Middle Node.js Developer, Node.js Developer.

Skills
Frontend: React, Next.js, Vue, Nuxt.js, TypeScript, JavaScript, CSS, HTML.
State & Data: Redux Toolkit, Zustand, Pinia, Vuex, TanStack Query.
UI & Styling: Material UI, Shadcn/ui, Tailwind CSS, Vuetify, PrimeVue, Storybook.
Backend & APIs: Node.js, Express, REST API, GraphQL, PostgreSQL, MongoDB, Firebase.
Testing: Playwright, Vitest, Testing Library, Jest.
Tools & DevOps: Vite, Docker, Git, GitHub Actions, Jira, Figma, Claude Code, Cursor, Copilot.

Experience
BIZZABO
Senior Platform Software Engineer
Mar 2026 - Sep 2026
Product Domains:
EventTech (event management and attendee experience).
Key Contributions:
Led modernization of large-scale SSR applications and shared repositories.
Migrated Node.js from v14 to v22 and replaced legacy Webpack infrastructure with Rspack, reducing build times
from several minutes to ~2 seconds and significantly reducing npm audit vulnerabilities.
Migrated React applications from v16 to v18 and progressively replaced legacy Backbone.js components with
React, ensuring new UI components met accessibility requirements.
Worked across the Node.js/Express server-side rendering layer, including server-side template generation and
request handling.
Implemented a customer-critical cookie consent solution across an iframe-based micro-frontend architecture,
synchronizing tracking pixel behavior across multiple applications.
Added automated test coverage for new functionality and used Playwright E2E tests to validate migrations and
prevent regressions.

SOFTSERVE
Senior Software Engineer
Aug 2024 - Jan 2026
Product Domains:
Professional Services (enterprise platform for service delivery, project management, ticketing, and billing).
Key Contributions:
Led UI modernization initiative, migrating the main application to a unified design system.
Designed and developed a reusable component library from the ground up, establishing design and development
standards.
Delivered complex business features across a multi-application codebase in a large-scale enterprise environment.
Implemented feature flagging and role-based access control (RBAC) to enable controlled feature rollout and
permission management.
Extended and maintained backend API endpoints using Node.js/Express, with additional work in .NET, to support
new frontend functionality.

AVENGA
Senior Software Engineer
Apr 2021 - Jul 2024
Product Domains:
Healthcare (telemedicine and remote patient monitoring platform).
Real Estate (data analytics platform for property teams).
FinTech (mobile banking application).
Workplace SaaS (IoT-enabled resource scheduling platform).
Key Contributions:
Played a key role in frontend architecture and feature delivery across multiple enterprise SaaS platforms.
Designed and implemented frontend architecture for new applications built from the ground up, including SSR
solutions.
Delivered white-label and theming systems supporting multiple branded deployments.
Led major UI modernization initiatives, including component library upgrades and architectural improvements.
Implemented complex business features such as authorization flows, data-driven dashboards, real-time updates,
and interactive media components.
Improved test coverage and maintained high code quality standards across projects.
Contributed to the development and release of a mobile banking MVP built with React Native.

TECHMAGIC
Software Engineer
Jan 2020 - Apr 2021
Product Domains:
MarTech (marketing analytics and reporting platform).
Key Contributions:
Led frontend development of the marketing analytics platform from initial architecture to production release.
Mentored and coordinated work of a frontend engineer, including task planning and code reviews.
Collaborated closely with designers to improve usability and overall user experience.
Established and maintained code quality standards, including linting and formatting workflows.

REDENTU
Software Engineer
May 2018 - Jan 2020
Product Domains:
Automotive data processing (Web scraping platform).
FinTech (Internet banking platform).
EdTech (Student management system for colleges).
E-commerce (Photography sales platform).

Key Contributions:
Developed and maintained multiple SPA applications across different product domains.
Designed and implemented RESTful APIs to support frontend applications and data processing.
Built data scraping services and automation scripts.
Led small development teams (2-4 engineers).
Implemented complex UI features and animations.

Education
NATIONAL TECHNICAL UNIVERSITY OF UKRAINE "IGOR SIKORSKY KYIV POLYTECHNIC INSTITUTE"
Master's degree, Management of foreign economic activity
Aug 2008 - Feb 2014

Languages
English - upper-intermediate (B2)
Ukrainian - native