Senior Frontend Developer at 3T Software Labs

Built a browser-based MongoDB IDE experience to bring a desktop IDE database tooling workflow to the web for enterprise customers, including major international banks. Migrated core desktop IDE functionality into a web UI (connection tree, Mongo shell, aggregation editor, and query/result workflows), reconstructing native-like UX and performance in the browser. Led a full overhaul of the connection tree across a 5-person team by replacing third-party ag-Grid with purpose-built custom modules, achieving zero functional regressions. Authored a ~75-scenario Playwright acceptance test suite to lock down legacy behavior before rewriting and safely replacing core IDE surfaces. Developed and maintained the frontend in React and TypeScript, integrated internal design-system assets and translated Figma specs into pixel-accurate reusable UI. Synchronized complex client state with backend services including MongoDB query execution, result streaming, and cross-layer error handling. Applied AI-au

Senior Frontend Engineer at Distribusion Technologies

Frontend engineer on Distribusion’s B2B ground-transportation ticketing platform using React, TypeScript, and Vue.js. Designed frontend architecture for end-to-end features including data fetching and caching (TanStack Query) and form-heavy flows (React Hook Form). Profiled and optimized the highest-traffic pages under production load, improving peak traffic performance by 30–40%. Drove micro-frontend integration using Webpack Module Federation, adopted by four product teams. Ran solution design reviews across the frontend team, setting standards for typing, error handling, and logging. Covered critical user journeys with unit, integration, and end-to-end tests while keeping the codebase safe for refactoring and legacy replacements.

Lead Frontend Engineer at VTB Bank, Russia

Designed and launched a new project from scratch, assembling and mentoring the frontend team. Introduced systematic code reviews, testing strategy, and architectural practices. Drove performance optimizations and scalability improvements. Achievements: spearheaded technical expansion enabling business scaling, contributing to a 30% increase in net company profit.

Senior Software Engineer at MAYD

Frontend engineer on MAYD’s on-demand pharmacy delivery platform (Berlin startup). Led legacy UI migration by rebuilding key features and embedding them into a new application as micro-frontends with compatible API contracts and staged, low-risk releases. Scaled the webshop and operational UIs as the company expanded into Austria (from ~100 to 150+ partner pharmacies plus warehouse locations). Built customer-facing webshop in React and TypeScript, including SEO optimization and localization. Developed core UI modules and shared design-system components for operational and partner interfaces with usability and accessibility as first-class requirements. Mentored teammates and ran code reviews; introduced RFCs and improved task composition to enhance onboarding and implementation quality.

Lead Frontend Engineer at VTB Bank, Russia

Designed and launched a new project from scratch, mentoring the frontend team. Introduced systematic code reviews, testing strategy, and architectural practices. Drove performance optimizations and scalability, contributing to business growth and a 30% increase in net profit; improved code quality and UX with audits and ongoing improvements.

Senior Frontend Engineer at Distribusion Technologies GmbH

Designed architecture solutions ensuring scalability and maintainability, aligned with business goals. Led migration of legacy UI to a micro-frontend, maintaining contract compatibility and unified UX. Delivered staged, low-risk releases; reduced onboarding times and enabled bi-weekly release cadence; improved code reuse and collaboration with backend and product teams.

Senior Frontend Engineer at Distribusion Technologies GmbH

Designed and implemented architectural solutions ensuring scalability, maintainability, and alignment with business goals. Led the migration of the legacy UI into a micro-frontend: replicated key features, maintained contract compatibility, unified UX, and delivered staged low-risk releases.

Frontend Engineer at Sberbank, Russia

Built web apps for internal banking systems. Introduced systematic code reviews, testing strategy, and architectural practices. Led migration and created reusable UI frameworks; reduced post-release incidents via automated testing and improved development velocity. Achievements: modules reused across 5+ banking systems; reduced duplicated development by ~25%.

Frontend Engineer at Sberbank, Russia

Developed web applications for internal banking systems. Delivered reusable frontend modules; collaborated with backend and compliance teams to ensure secure, regulatory-compliant solutions. Introduced automated testing into development workflows. Achievements include reducing onboarding time from 4 weeks to 1 week and increasing code reuse by ~35%, with bi-weekly releases.