Mid FullStack Developer

Salary: 960–1120 PLN net + VAT per MD

Work model: Flexible hybrid, based in Warsaw or Poznań

Why choose this offer?

• Develop modern AdTech solutions supporting advertising campaign management.
• Work on a project that combines frontend, backend, and Machine Learning to develop data-driven recommendation systems.
• Use a modern technology stack including React, TypeScript, Kotlin, and GCP.
• Influence the development of microfrontends, microservices, and event-driven architecture.

Project

Join the New Ventures Core Tech area as a Mid-level Fullstack Engineer on a dynamic project focused on rapid delivery, technical versatility, and seamless integration with external strategic partners.

The project’s main objective is to build, adapt, and integrate APIs that enable smooth cooperation with external business partners. Work across the full technology stack, switching between backend and frontend development according to project priorities. Contribute to new functionality development, adaptation of existing systems, and onboarding and integration of external partners.

Expected competences and knowledge

• Good programming skills in Java or Kotlin and experience working with microservices.
• Solid hands-on frontend experience with HTML, CSS, JavaScript, and modern frontend frameworks.
• Practical experience with React and component-based frontend development.
• Good understanding of REST API principles, JSON, and backend endpoint integration.
• Ability to work effectively across backend and frontend areas and switch between technical contexts.
• Strong problem-solving skills and a pragmatic, delivery-oriented approach.

Nice to have

• Familiarity with CI/CD tools, especially GitLab CI.
• Experience with Docker and cloud environments.
• Understanding of modern UX/UI principles and accessibility standards.

Technologies you’ll work with

• Java / Kotlin
• React
• JavaScript / HTML / CSS
• REST APIs / JSON
• Microservices
• GitLab CI / Docker
• Cloud environments

Client project context

The project supports a leading Polish e-commerce platform used by more than 20 million users. You will contribute to software delivered at massive scale, working with autonomous teams that design platform components through microservices and using modern technologies and tools.