Senior Fullstack Consultant (Kraków, PL, 30-302)

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

Type of contract: B2B contract
Salary range: 125-160 PLN/H

What will you do?

You will join an international engineering team building modern, high-impact digital platforms, taking end-to-end ownership across backend services, APIs, and user-facing applications in an Agile, cloud-native environment, with a strong focus on engineering quality, reliability, and practical delivery.

Your tasks

• Design, develop, and maintain full-stack applications used by global users.
• Build and evolve backend services and REST APIs primarily in Java with Python used 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.

Requirements

• Strong commercial experience in full-stack software engineering.
• Strong backend expertise in Java (11+ or 17+) 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 our client office (for candidates from Kraków) and 6 days per month for candidates based outside Kraków.

Nice to have

• Experience with cloud platforms such as AWS, Azure, or GCP.
• Docker and Kubernetes experience.
• Experience with messaging or event-driven systems such as Kafka or MQ.
• Monitoring, observability, and production support experience.
• Experience with data validation formats such as JSON or XML and integration testing.

GDPR clause

Based on Regulation (EU) 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural persons with regard to the processing of personal data and on the free movement of such a data and repealing Directive 95 /46/EC (known as a “GDPR”), I hereby give consent to GFT Poland Sp. z o.o. (90-118 Łódź, ul. Kilińskiego 66) to process my personal data for the purpose of: a) ongoing recruitment process for the position I am applying; b) recruitment processes organized in the future.