.
Senior Fullstack Developer (Java + React)
  • Gdynia
Senior Fullstack Developer (Java + React)
Gdynia, Gdynia, Pomeranian Voivodeship, Polska
Jit Team sp. z o.o.
19. 2. 2026
Informacje o stanowisku

technologies-expected :


  • Java
  • Spring Boot
  • React.js
  • Redux
  • TypeScript
  • AWS
  • REST
  • GraphQL
  • SQL
  • Oracle
  • My SQL
  • PostgreSQL
  • DynamoDB
  • Redis
  • Memcache
  • Hazelcast
  • Solr
  • Elasticsearch

about-project :


  • Salary: 1200-1500 pln/md on B2B
  • Remote: Elastic hybrid from Gdynia/Warszawa/Rzeszów/Kraków (1-2 days per week from the office)
  • You will join a Digital Development Team responsible for building and evolving a client-centric platform serving both internal and external users. The platform supports onboarding and membership processes, as well as listing and post-listing activities for issuers. It acts as a central digital framework used across multiple strategic digital initiatives within the organization. As a Senior Fullstack Developer, you will be responsible for designing, developing, and maintaining software products within this digital platform domain.

responsibilities :


  • Design, develop, and maintain full-stack solutions using Java, Spring Boot, React, Redux, and TypeScript
  • Build and evolve RESTful and GraphQL APIs in a service-oriented and event-driven architecture
  • Contribute to cloud-native solutions on AWS (ECS, SQS, SNS, S3, AuroraDB, Lambda, AppSync)
  • Work with relational and NoSQL databases (Oracle, MySQL, PostgreSQL, DynamoDB)
  • Implement messaging and event-driven communication using Kafka, SQS, Solace
  • Apply caching and search solutions (Redis, Hazelcast, Solr, Elasticsearch)
  • Ensure high code quality through unit testing and frontend testing frameworks (Jest, React Testing Library, Playwright)
  • Contribute to AI-assisted development workflows and integration of AI tools into engineering processes
  • Collaborate closely with DevOps in infrastructure, deployment, and operational excellence
  • Participate in architectural discussions and continuously improve scalability, performance, and maintainability

requirements-expected :


  • At least 4 years of experience as a Full Stack Software Engineer
  • Strong understanding of modern development paradigms: service-oriented architecture, REST APIs, domain-driven design, and event-driven architecture
  • Full-stack mindset with the ability to move across frontend, backend, and infrastructure
  • Quality-oriented approach - unit testing, test automation, and awareness of security, performance, and stability
  • Experience working in DevOps-oriented environments with shared operational responsibility
  • Ability to design and implement scalable and maintainable systems
  • Interest in AI-assisted development and integrating AI tools into engineering workflows

offered :


  • Be part of the digital transformation of financial markets
  • Strong full-stack exposure - ability to work across frontend, backend, and infrastructure layers
  • Quality-driven engineering culture
  • Opportunity to explore AI-assisted development workflows and integrate AI tools into products

  • Praca Gdynia
  • Gdynia - Oferty pracy w okolicznych lokalizacjach


    118 765
    17 793