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Kyivstar

Full-Stack Developer (Next.js, React Native)

Kyivstar All 1 day ago
engineering
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.

Kyivstar.Tech is a Ukrainian hybrid IT company and a resident of Diia.City. We are a subsidiary of Kyivstar, one of Ukraine's largest telecom operators.
Our mission is to change lives in Ukraine and around the world by creating technological solutions and products that unleash the potential of businesses and meet users' needs.  

Over 600+ KS.Tech specialists work daily in various areas: mobile and web solutions, as well as design, development, support, and technical maintenance of high-performance systems and services.
We believe in innovations that truly bring quality changes and constantly challenge conventional approaches and solutions. Each of us is an adherent of entrepreneurial culture, which allows us never to stop, to evolve, and to create something new. 

What you will do

  • Develop and maintain the Packly web application
  • Implement and optimize the frontend for reliable operation in WebView
  • Work with server-side logic, APIs, and databases
  • Collaborate with the mobile team
  • Participate in designing technical solutions

    • Required qualifications and experience

  • 3+ years of commercial experience in web development
  • Solid understanding of computer science, algorithms, and data structures
  • Strong command of OOP principles, SOLID, DRY, KISS, and design patterns
  • Expert 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, indexing
  • Understanding 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 development

    • A plus would be

  • Experience with React Native
  • Hands-on experience with Supabase: Auth, Row Level Security (RLS), Edge Functions, Realtime
  • Understanding WebView specifics: two-way bridge communication and adapting web UI for mobile UX

    • What we offer

  • Office or remote – it’s up to you. You can work from anywhere, and we will arrange your workplace
  • Remote onboarding  
  • Performance 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 partners            
  • Health and life insurance        
  • Wellbeing program and corporate psychologist             
  • Reimbursement of expenses for Kyivstar mobile communication

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    Skills in this job

    Typescript React

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