Full-Stack Java/Kotlin Engineer for E‑commerce

Codest Ltd. Company No. 12590542, VAT number: GB363431020; Warszawa; On-site; PLN 167,000 - 223,000; Full time

Benefits offered by this job

Worksmile platform access

Job summary

The Codest is seeking a full-stack developer to join a European e-commerce project, working across backend and frontend tasks. You will adjust Java-based APIs, build responsive UI with React, and collaborate with external partners to ensure smooth onboarding.

Expect to switch between backend and frontend duties, implement RESTful services, and handle JSON data. English level B2+ required; great opportunity for growth within a global tech company.

Qualifications

• Strong Java (Kotlin) backend with microservices
• Frontend experience with React, HTML, CSS, JS
• REST API design and JSON data manipulation
• Ability to switch between backend and frontend tasks
• Professional English (B2+)
• Willingness to participate in Incident Response service

Responsibilities

• Backend API adjustments and designing APIs on the Java backend
• Frontend development of responsive components using React
• Integrate with external partners, onboarding support
• Collaborate across full-stack on project requirements

Skills

Java (Kotlin)

Frontend development

REST APIs

JSON data handling

English (B2+)

Tools

GitLab CI

Docker

Cloud environments

Job description

The Codest is seeking a full-stack developer to join a European e-commerce project, working across backend and frontend tasks. You will adjust Java-based APIs, build responsive UI with React, and collaborate with external partners to ensure smooth onboarding.

Expect to switch between backend and frontend duties, implement RESTful services, and handle JSON data. English level B2+ required; great opportunity for growth within a global tech company.