Allegro - MID Fullstack Engineer - Warszawa/ Poznań
Build and integrate APIs for adTech and ecommerce systems using Java/Kotlin backend and React frontend, working with microservices and cloud tools.
- Compensation
- PLN 960–PLN 1.1K / mo
- Location
- Not listed
- Work setup
- Not specified
- Seniority
- Middle
- Employment
- Not specified
- Experience
- Not specified
- Category
- Fullstack
- Posted
Skills
Must have
- Good programming skills in Java or Kotlin
- Experience 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 both backend and frontend areas
- 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
Full description
Salary: 960 - 1120 PLN netto + VAT/ MD
Work model: remote, with proximity to one of our offices in Kraków, Poznań, or Warsaw
Why choose this offer?
- You will develop modern AdTech solutions supporting advertising campaign management
- You will join a project combining frontend, backend, and Machine Learning, developing data-driven recommendation systems
- You will have the opportunity to work with a modern technology stack, including React, TypeScript, Kotlin, and GCP
- You will have a real impact on the development of microfrontends, microservices, and event-driven architectureProject
Join the New Ventures Core Tech area as a Mid-level Fullstack Engineer and work on a dynamic project focused on rapid delivery, technical versatility, and seamless integration with external strategic partners.
The main objective of the project is to build, adapt, and integrate APIs that enable smooth cooperation with external business partners.
You will work across the full technology stack, dynamically switching between backend and frontend development depending on current project priorities. You will contribute to developing new functionalities, adapting existing systems, and supporting the 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 both backend and frontend areas and switch between different technical contexts
- Strong problem-solving skills and a pragmatic, delivery-oriented approachNice to have
- Familiarity with CI/CD tools, especially GitLab CI
- Experience with Docker and cloud environments
- Understanding of modern UX/UI principles and accessibility standardTechnologies you'll work with
- Java / Kotlin