Senior Fullstack Consultant (Java + React) 1

GFT TECHNOLOGIES SE; Kraków; On-site; PLN 172,200 - 220,416; Part time

Job summary

GFT TECHNOLOGIES SE is looking for a Senior Fullstack Consultant specializing in Java and React to join their team in Kraków, Poland. The successful candidate will work on a cutting-edge client onboarding platform for Global Banking and Markets, ensuring high performance and stability.

This hybrid position offers the opportunity to work from home while collaborating with clients in the office. With a competitive salary range of 125 - 160 PLN/hour, this role demands strong Java and React expertise, as well as capabilities in developing and maintaining scalable solutions.

Qualifications

• Strong knowledge of Java 8 or higher.
• Good knowledge of React JS.
• Experience with debugging applications.

Responsibilities

• Develop and maintain backend services using Java.
• Build modern frontend features using React.
• Collaborate in CI/CD processes and deployments.

Skills

Java 8+

React JS

Automated testing

Microservices architecture

CI/CD tools

Application security practices

Database schema design

Problem-solving

Job description

Senior Fullstack Consultant (Java + React) 1

Location: Kraków, PL, 30-302 Poznań, WP, PL, 61-569 Warszawa, PL, 00-839 Łódź, PL, 90-118

Working place: Hybrid

Type of contract: B2B contract

Salary range: 125 - 160 PLN/h

Responsibilities

You will work on a modern client onboarding platform for Global Banking and Markets, building a seamless and user-friendly experience for corporate and institutional clients. The role focuses on developing scalable solutions, improving performance and stability, and contributing to innovative initiatives that enhance customer experience and streamline onboarding processes.

• Develop and maintain backend services using Java
• Build modern frontend features using React
• Extend existing functionalities and fix issues in the codebase
• Design and implement REST APIs in microservices architecture
• Write automated tests to ensure quality and reliability
• Collaborate in CI/CD processes and deployments
• Implement security best practices across services and endpoints
• Improve application performance and production stability
• Participate in platform and process improvement initiatives
• Provide production support on a rotational basis

Requirements

• Strong Java 8+ knowledge
• Good knowledge of React JS
• Experience debugging and extending existing applications
• Understanding of microservices architecture
• Ability to design and build REST APIs
• Experience writing automated tests
• Hands‑on experience with CI/CD tools
• Knowledge of application security practices
• Strong problem‑solving and analytical skills
• Ability to work in fast‑paced collaborative environment
• Good understanding of database schema design
• Openness to work hybrid from our client office 2 days a week

Nice to have

• Knowledge of PostgreSQL
• Experience with DevOps POD model