Kyivstar.Tech is looking for a frontend-focused Full-Stack Developer (Next.js, React Native) to join the Packly project. Packly is a FoodTech service-marketplace where cafés, restaurants, and supermarkets can sell surplus inventory, and users can buy quality food at substantial discounts. We are looking for an engineer with architectural thinking who can take end-to-end ownership of features— from designing the database schema to building the UI in a mobile WebView.Packly is a FoodTech service-marketplace where cafés, restaurants, and supermarkets can sell surplus inventory, and users can buy quality food at substantial discounts. We are looking for an engineer with architectural thinking who can take end-to-end ownership of features— from designing the database schema to building the UI in a mobile WebView.What you will doDevelop and maintain the Packly web applicationImplement and optimize the frontend for reliable operation in WebViewWork with server-side logic, APIs, and databasesCollaborate with the mobile teamParticipate in designing technical solutionsRequired qualifications and experience3+ years of commercial experience in web developmentSolid understanding of computer science, algorithms, and data structuresStrong command of OOP principles, SOLID, DRY, KISS, and design patternsExpert knowledge of TypeScript and React (Hooks, Context)Deep understanding of Next.js (App Router, Server Actions, SSR/SSG strategies, Web Vitals optimization)Experience designing relational databases (PostgreSQL): normalization, indexingUnderstanding of REST API principles and web security (JWT, OWASP)Experience setting up CI/CD pipelines (Vercel, GitHub Actions)Ability to write tests (Jest, Cypress/Playwright)High-quality code reviews; GitFlow or Trunk-based developmentA plus would beExperience with React NativeHands-on experience with Supabase: Auth, Row Level Security (RLS), Edge Functions, RealtimeUnderstanding WebView specifics: two-way bridge communication and adapting web UI for mobile UXWhat we offerOffice or remote – it’s up to you. You can work from anywhere, and we will arrange your workplaceRemote onboardingPerformance bonuses for everyone (annual or quarterly — depends on the role)We train employees: with the opportunity to learn through the company’s library, internal resources, and programs from partnersHealth and life insuranceWellbeing program and corporate psychologistReimbursement of expenses for Kyivstar mobile communicationAI DisclaimerWe may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.