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Senior Fullstack Consultant

Senior Fullstack Consultant

Custom Field 1:  Backend Development
Custom Field 3:  Backend Development
Country/Region:  PL
Date:  May 19, 2026
Location: 

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

Working place:  Hybrid

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.

We are GFT Poland. WE KNOW how to tackle complex issues with innovative approach to deliver the highest value. Our reputation has been built around one simple rule: we do not overpromise, WE DELIVER. We deliver to our employees, clients and partners. WE GROW as you grow, so investing in you is our business strategy. Caring for each other is our priority. WE CARE who you are, what you need, how you feel. WE CARE to smile, have fun and develop as human beings. 

Why Choose GFT?

  • A culture of top performance
  • Deep tech IT engineering & consulting 
  • 1200 skilled & top-class experts
  • 77% of the team are regular/senior 
  • Products that contribute to a sustainable world
  • Competitive salary and benefits 
  • Ambitious projects, trainings and tools you need to flourish
  • Google Cloud Partner of the Year - for going above and beyond for customers

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