Senior Frontend Developer

Bell Integrator is the country's largest system integrator. WE ARE AN ACCREDITED IT COMPANY.

Currently, we have over 2,500 highly skilled analysts, project managers, developers, testers, and specialists in supporting large information systems working with us. Bell Integrator actively implements projects throughout Russia, and our clients include the country's leading system-forming financial, telecom, and retail companies.

The Bell Integrator central office is located in Moscow, with representative offices in St. Petersburg, Nizhny Novgorod, Penza, Saratov, Ufa, Barnaul, and Minsk (Belarus).

We are looking for a Senior Frontend Developer to lead the technical development of interfaces for an AI-native media platform.

We are building a technological platform for the production, storage, and distribution of media content. This is a new generation media repository where AI agents handle routine and creative tasks: from automatic content tagging and adaptation to preparing it for publication across 30+ channels (Bank websites and apps, messengers, social networks).

• Frontend Core: React, Next.js, TypeScript
• State and Data: Redux Toolkit, RTK Query
• AI Interaction: Server-Sent Events (SSE), agent response streaming, MCP
• Styling: CSS3, SASS/SCSS, CSS Modules
• Testing: Jest, React Testing Library
• Backend: Node.js, REST API, SSR
• Tools and CI/CD: npm/yarn, Git, Webpack, ESLint, Jenkins, Docker
• Management: Jira, Confluence

Requirements:

• 5+ years of commercial frontend development experience, with at least 2 years in a Senior role
• Deep practical experience with React, Next.js, and TypeScript, with an understanding of their internal workings
• Experience in designing the architecture of complex frontend applications and making key technical decisions
• Understanding and application of SOLID, DRY, KISS principles, as well as design patterns
• Experience with state managers (Redux Toolkit, RTK Query) in large projects
• Strong knowledge of HTML5, CSS3, and preprocessors (SASS)
• Advanced experience with REST API, SSR, and server-side Node.js
• Experience with Server-Sent Events (SSE): designing streaming interfaces, handling client-side events, reconnections, graceful degradation
• Ability to write unit tests (Jest/React Testing Library), experience in introducing a testing culture within a team
• Mentorship and coaching experience for developers

• Opportunities for career growth and expertise acquisition in the country's leading financial organizations;
• Discounts on fitness center memberships and English language courses;
• Office-based, hybrid, or remote work formats
• Employment under the Labor Code of the Russian Federation with an indefinite employment contract