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GFT Technologies SE

Tech Lead Fullstack Engineer (Java & React)

GFT Technologies SE Krakow, Lesser Poland Voivodeship, Poland · PLN 209K–PLN 320K/yr

IT Services and IT Consulting · 10,001+ employees

19 h ago
react Senior (5-10 yrs) Full-time Poland
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About the role

You will design and develop scalable microservices-based applications for financial services platforms using Java and React. The role involves application modernization, process automation, and maintaining CI/CD pipelines within a highly regulated environment.

What they look for

Java Spring Boot ReactJS TypeScript PostgreSQL Kafka Microservices Kubernetes Helm Terraform GitLab CI/CD Generative AI JUnit 5 Mockito Testcontainers Redux

Requirements

Candidates must have strong experience in Java 17+, Spring Boot 3+, and ReactJS, along with proficiency in microservices architecture. Practical knowledge of PostgreSQL, Kafka, Kubernetes, and AI engineering tools is required to succeed in this role.

Benefits

Medical insurance Sport subsidy Lunch subsidy Life insurance Online training Certifications E-learning platform access Social events

Full description

Type of contract: Employment contract

Salary range: 17400 - 26700 PLN gross

What will you do?

You will work on large-scale financial services platforms supporting investment banking operations. The role focuses on digital transformation, process automation, data integration, and application modernization in a highly regulated environment. You will contribute across both backend and frontend development while leveraging modern cloud-native technologies, AI engineering tools, and DevOps practices.

Your tasks

  • Design and develop scalable microservices-based applications using Java and Spring Boot
  • Build and maintain modern frontend solutions using React and TypeScript
  • Implement and optimize integrations with PostgreSQL and Kafka
  • Collaborate with business stakeholders and development teams to deliver high-quality solutions
  • Develop and maintain automated tests ensuring application quality and reliability
  • Deploy and support applications running on Kubernetes platforms
  • Create and maintain CI/CD pipelines using GitLab
  • Participate in application modernization and process automation initiatives
  • Contribute to technical discussions and architectural decisions
  • Utilize AI engineering tools to improve development efficiency

Your skills

  • Strong backend development experience using Java 17+ and Spring Boot 3+
  • Experience designing and developing microservices-based architectures
  • Good knowledge of PostgreSQL
  • Good knowledge of Kafka
  • Strong frontend development expertise using ReactJS, Redux, TypeScript, HTML5, CSS3 and modern JavaScript (ES6+)
  • Experience with .NET and C#
  • Experience with AI engineering tools such as GHCP CLI
  • Understanding of Generative AI concepts and frontier models
  • Strong communication skills
  • Strong domain knowledge of Stock Borrow Loan business
  • Experience with automated testing using JUnit 5, Mockito, Testcontainers or similar tools
  • Understanding of structured context in codebases such as AGENTS.md and skills
  • Practical knowledge of Kubernetes, Helm and Terraform
  • Experience with GitLab CI/CD pipelines for build, test, packaging and deployment automation

Nice to have

  • Splunk
  • Grafana
  • Application Insights

We offer

  • Hybrid work in our client's office (Kraków) 3 days a week
  • Working in a highly experienced and dedicated team
  • Benefit package tailored to your needs (medical, sport, lunch subsidy, life insurance, etc.)
  • Online training and certifications
  • Access to e-learning platform
  • Social events

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