Czym będziesz się zajmować? Work as a full-stack engineer, owning features from API to UI: Develop and maintain Node.js backend services for data ingestion, processing, and application logic Implement Vue.js frontend components and pages (forms, tables, filters, dashboards) Collaborate with solution architects and data engineers to: Consume and expose data from Snowflake and other data sources Align on data models and contracts between the application and the data warehouse Integrate with: Chrome extension–based data capture flows External data providers and internal APIs Ensure code quality: Write clean, testable, maintainable code in both the back end and the front end Participate in code reviews, refactoring, and technical design discussions Contribute to architecture and technical decisions for the MVP and further phases Collaborate with PM/BA and client stakeholders, clarify requirements, and propose implementation options Help improve DevOps and delivery practices (logging, monitoring, basic CI/CD improvements) within the scope of your work Continuously learn and adopt best practices around data-intensive systems and AI-assisted development 

Kogo poszukujemy? 4+ years of commercial experience with JavaScript/TypeScript 3+ years of commercial experience with Node.js on the back end Experience building and maintaining REST/JSON APIs Solid understanding of authentication/authorization, error handling, and logging 2+ years of commercial experience with a modern front-end framework Vue.js is preferred (React experience acceptable, with readiness to work in Vue) Experience building SPA dashboards, forms, data grids, and filters Experience working as a true full-stack developer Strong knowledge of SQL and experience integrating applications with analytical/OLAP stores (Snowflake, Redshift, BigQuery, or similar) Experience integrating with external APIs and third-party services Good understanding of asynchronous programming, promises, and event-driven architectures Practical experience with Git and common branching/code review workflows (PRs, code reviews) Experience with unit/integration testing for back-end and/or front-end Ability to collaborate with architects and data engineers (understanding of data models, ETL outputs, contracts) Experience with AI / LLM integrations (OpenAI, Claude, etc.) from Node.js  Good communication skills; ability to explain technical decisions to non-technical stakeholders