Full-Stack Engineer (Java/Kotlin) - Backend & Frontend

your Jared; Poland; Remote; PLN 167,000 - 223,000; Full time

Benefits offered by this job

Worksmile platform access

Growth-focused environment

Job summary

The Codest - International Tech Software Company, with tech hubs in Poland, is delivering global IT solutions and scaling teams. Developers on this project operate across full stack, shifting between backend and frontend tasks as needed.

The role focuses on Java (Kotlin) backend, React frontend, REST APIs, and microservices. English at B2+ is required; incident response availability is expected. Poland-based on-site work with opportunities for growth and collaboration.

Qualifications

• Strong Java (Kotlin) backend skills and experience with microservices.
• Hands-on frontend experience with HTML, CSS, JavaScript and modern frameworks.
• Solid understanding of REST APIs, JSON data handling and backend integration.
• Ability to switch context between backend and frontend tasks.
• English level at least B2+.

Responsibilities

• Backend & API Adjustments: prepare mocks, design and adjust APIs on Java backend.
• Frontend Development: build responsive UI components and checkout flows with React.
• Integration Support: adapt systems and endpoints for onboarding with external partners.

Skills

Java (Kotlin) backend

Frontend development (React)

REST API principles

JSON data manipulation

Microservices

HTML/CSS/JS

English (B2+)

Tools

GitLab CI

Docker

Job description

The Codest - International Tech Software Company, with tech hubs in Poland, is delivering global IT solutions and scaling teams. Developers on this project operate across full stack, shifting between backend and frontend tasks as needed.

The role focuses on Java (Kotlin) backend, React frontend, REST APIs, and microservices. English at B2+ is required; incident response availability is expected. Poland-based on-site work with opportunities for growth and collaboration.