Senior Full-Stack Engineer: Java, React, Cloud Microservices

GFT Technologies SE; Polska; Hybrid; PLN 172,000 - 220,000; Full time

Job summary

GFT Poland Sp. z o.o. is seeking a senior full-stack engineer to join an international team delivering modern, high-impact digital platforms in an Agile, cloud-native environment.

You will own backend services and frontend features with Java/Spring and React, write tests, participate in CI/CD, and collaborate with product and security partners. Hybrid work is offered with Kraków-based flexibility.

Qualifications

• Strong commercial experience in full-stack software engineering.
• Backend expertise in Java 11+ with Spring and Spring Boot.
• Working knowledge of Python for services, automation, and scripting.
• Experience designing and building REST APIs and microservices.
• Frontend experience with JavaScript or TypeScript and React or similar frameworks.
• Experience with SQL databases and data modelling such as PostgreSQL or Oracle.
• Familiarity with CI/CD, Git, and DevOps practices.
• Ability to work effectively in Agile teams and communicate in English.
• Openness to hybrid work 2 days a week from Kraków client office and 6 days per month for others.

Responsibilities

• Design, develop, and maintain full-stack applications used by global users.
• Build backend services and REST APIs primarily in Java with Python for services, automation, and scripting.
• Develop frontend features using modern JavaScript frameworks such as React.
• Contribute to solution design, technical discussions, and pragmatic trade-offs.
• Deliver changes through CI/CD pipelines and engineering quality gates.
• Write automated tests and participate in code reviews to ensure high quality.
• Support production systems through incident investigation, fixes, and continuous improvement.
• Collaborate closely with product, engineering, and platform or security partners to deliver reliable software.

Skills

Full-stack development

Backend Java Spring

Python for services

REST APIs

Frontend React

SQL databases

CI/CD DevOps

English communication

Agile teamwork

Tools

Docker

Kubernetes

Kafka

Job description

GFT Poland Sp. z o.o. is seeking a senior full-stack engineer to join an international team delivering modern, high-impact digital platforms in an Agile, cloud-native environment.

You will own backend services and frontend features with Java/Spring and React, write tests, participate in CI/CD, and collaborate with product and security partners. Hybrid work is offered with Kraków-based flexibility.