Maria Ananeva
Yerevan,ER
Summary
Results-driven Frontend Engineer with full-stack capabilities, specializing in high-load data interfaces and backend integrations using Node.js. Improved UI responsiveness by up to 30% through virtualization and skeleton animation optimization. Delivered and maintained critical infrastructure components for a white-label B2B SaaS platform.
Overview
8
8
years of professional experience
Work History
Senior Frontend Developer
Invent.us
08.2022 - Current
- Designed and developed reusable UI components and tooling shared across multiple microfrontends in a scalable architecture
- Led micro teams and contributed to microfrontend architecture
- Developed backend endpoints using Node.js to support widget orchestration and configuration.
- Built PostgreSQL migrations and contributed to database schema design.
- Worked on internal APIs for widget state management, inter-component communication, and dynamic layout rendering.
- Participated in feature planning, retrospectives, and mentoring
- Enhanced DataGrid performance (~30% faster load) through virtualization, lazy skeleton loading, and debounced resize handling, ensuring smooth UX and efficient rendering
- Wrote onboarding documentation and developer guides, reducing new engineer integration time by ~20%
- Remote
Frontend Developer
Mail.ru Group (Youla/Worki B2C)
03.2020 - 02.2022
- Migrated project to TypeScript, led refactoring and implemented tests to improve code quality. Reduced runtime errors by ~30% as a result of improved type safety and test coverage.
- Designed and ran A/B experiments to support monetization strategy; variant B improved target user behavior by ~12%
- Rewrote a core map integration module used in 6 areas of the application, reducing failure rate by over 5× and improving consistency across the platform
Frontend Developer
Dialog — Internal Communication Analyzer for Enterprise (R&D)
08.2019 - 02.2020
- Designed and built a TypeScript-first frontend from scratch with ~90% type coverage
- Developed custom D3-based visualization of internal communication graphs using trigonometric layout logic
- Choose optimized manual coordinate calculations instead of relying on default D3 modules to improve performance and maintain control over rendering logic
Frontend developer
Noveo
10.2017 - 07.2019
- Reengineered a complex admin interface for medical professionals to manage dialogue logic and bot response cards
- Developed a custom dynamic form system with domain-specific validation logic to streamline content creation workflows
- Collaborated closely with backend engineers to shape API contracts and data handling strategies
- Worked side by side with designers to improve usability for non-technical users, providing iterative feedback and functional prototypes
- Delivered clear internal documentation and technical specs to support team onboarding and reduce development friction
Education
Bachelor's degree -
Siberian State University of Telecommunications and Information Science
07.2018
Skills
- React
- Type Script
- Effector
- JavaScript
- Redux
- GraphQL apis
- Web performance optimization
- Cypress
- PostgreSQL
- Microfrontend architecture
- React proficiency
- RESTful apis integration
- Responsive design
- Nodejs basics
- Team collaboration
- Team leadership
Languages
English
Upper intermediate (B2)
Timeline
Senior Frontend Developer
Invent.us
08.2022 - Current
Frontend Developer
Mail.ru Group (Youla/Worki B2C)
03.2020 - 02.2022
Frontend Developer
Dialog — Internal Communication Analyzer for Enterprise (R&D)
08.2019 - 02.2020
Frontend developer
Noveo
10.2017 - 07.2019
Bachelor's degree -
Siberian State University of Telecommunications and Information Science
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