JavaScript Developer (with Python)

Back to all vacancies JavaScript Developer (with Python) Join a product team building a retail data platform that transforms complex business data into actionable insights. As a Full Stack JavaScript Developer, you’ll build scalable data pipelines and web applications while contributing to AI-driven reporting powered by natural language querying. Full time Lviv/remote Recruiter Iryna Smetiukhova About Us Brainence has spent 10+ years building first-class products — and the teams behind them. Over 50 startups and enterprises have trusted us to launch MVPs, scale engineering teams, and deliver products that perform in the real world. Our playground spans healthcare, edtech, real estate, retail, construction, logistics, insurance, and more. About The Project We’re looking for a Full Stack JavaScript Developer to join a product team building a retail data platform. The product collects, transforms, and visualizes data from large retail businesses, helping clients turn complex datasets into clear insights through modern reporting and AI-powered analytics. You’ll build scalable data pipelines and intuitive web applications that make business reporting fast, simple, and actionable. A key focus of the project is integrating tools like Metabase with AI-powered natural language querying, allowing users to generate reports simply by asking questions in plain English. Responsibilities As part of the team, you will work on two main data workflows: Sales Reporting Build interactive, drill-down reporting dashboards based on structured sales data. Develop web applications that present complex business metrics in a clear and user-friendly way. Retail Data Processing Ingest data from multiple retailers in various formats. Transform, normalize, and validate inconsistent datasets. Design backend services that convert raw retail data into clean, reliable, client-ready information. You’ll work across both frontend and backend development while working with modern JavaScript technologies and data transformation pipelines. Requirements 3–5 years of commercial experience with JavaScript / TypeScript Strong experience with React and Next.js Experience building full-stack applications, including API routes, backend logic, and database integration Good understanding of data transformation and processing Comfortable working with messy, real-world datasets and converting them into structured, usable information Experience with relational databases (PostgreSQL preferred) Experience with modern UI frameworks such as Tailwind CSS or similar Ability to thrive in a fast-moving, early-stage product environment Python experience is a strong plus, with the ability to work across both JavaScript and Python when needed English and Ukrainian languages at Upper Intermediate level or higher Nice To Have Experience with reporting and BI platforms such as Metabase Experience building analytics or reporting solutions Experience working with AI-powered reporting or natural language interfaces Retail industry experience We offer 18 paid vacation days 10 paid sick days 2 unpaid days off per month Work remotely or from our comfortable Lviv office Necessary equipment, or $200 equipment compensation per year 50% compensation for professional development costs, including courses, webinars, and training programs Apply here Drop your details below, and we'll get back to you soon First Name * Last Name * Email * Click to upload or drop your CV hereClick to upload or drop files here. Send message Δ