Senior Fullstack Java / React
Offer summary

(Summary generated by AI based on the full job description)

The project involves designing scalable full stack applications using Java, Spring Boot, React, TypeScript, and AWS. Key requirements include experience with Java, Spring Framework, React.js, TypeScript, SQL, microservices, and REST APIs. Responsibilities cover backend and frontend development, integration, architectural decisions, maintenance, and mentoring. The offer includes private medical care, sports activity funding, flexible working hours.

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Senior Fullstack Java / React

Company: ITEAMLY SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ

from: 5 August 2026
to: 4 September 2026
15 000 - 23 000net (+ VAT)/ mth.B2B contract (full-time)
Offer parameters
level:senior
working mode:full office
location:Kraków, Lesser Poland
Kraków, Lesser Poland

Requirements

Expected technologies

Java
Spring Framework
Spring Boot
React.js
TypeScript
JavaScript
AWS
SQL
HTML
CSS3
SCSS
Jest

Optional technologies

Kafka
Hadoop
Apache Spark
Next.js
Redux
Zustand

Operating system

Windows

Our requirements

  • Minimum 3–5 years of professional software development experience.
  • Commercial experience with Java, Spring Framework, and Spring Boot.
  • Commercial experience with React.js and TypeScript.
  • Solid understanding of JavaScript (ES6+).
  • Experience working with AWS in production environments.
  • Understanding of microservices architecture.
  • Hands-on experience with SQL and relational databases.
  • Experience integrating and consuming REST APIs.
  • Very good knowledge of HTML5, CSS3 / SCSS, responsive design, and cross-browser compatibility.
  • Experience with frontend testing using Jest and React Testing Library.
  • Familiarity with modern frontend tooling and build processes.
  • Ability to work independently, take ownership of delivered solutions, and contribute to system design.
  • Excellent communication skills and experience working in Agile environments

Optional

  • Experience with Kafka or other event-driven architectures.
  • Knowledge of Hadoop or Apache Spark.
  • Experience with Next.js.
  • Experience with Redux, Zustand, or similar state management solutions.
  • Previous experience in Healthcare or Life Sciences projects.

Your responsibilities

  • Design, develop, and maintain scalable full stack applications using Java and React.
  • Build and maintain backend services with Java, Spring Framework, Spring Boot, SQL, and AWS.
  • Develop modern, reusable, and responsive user interfaces using React, TypeScript, and JavaScript.
  • Design and implement scalable frontend architecture and reusable UI components.
  • Collaborate closely with Product Owners, QA Engineers, and other development teams.
  • Integrate frontend applications with REST APIs and backend microservices.
  • Contribute to architectural decisions and technical discussions.
  • Ensure application performance, scalability, security, and maintainability.
  • Participate in code reviews, sprint planning, and Agile ceremonies.
  • Support deployment automation, production operations, and troubleshooting.
  • Mentor less experienced developers and promote engineering best practices.

This is how we organize our work

This is how we work

you can change the projectyou have influence on the choice of tools and technologiesyou have influence on the technological solutions appliedyou have influence on the productagilescrum

This is how we work on a project

  • issue tracking tools
  • testing environments
Company

What we offer

  • Long-term cooperation on an international project.
  • Flexible working hours.
  • Opportunity to influence architecture and technical decisions.
  • Modern technology stack.
  • Supportive, collaborative engineering culture.
  • Learning and development opportunities.
  • Modern equipment and comfortable working environment.

Benefits

  • sharing the costs of sports activities
  • private medical care
  • remote work opportunities

ITEAMLY SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ

As Venture Building, we create profitable technology companies from scratch. We collaborate with partners who share similar aspirations and are open to leveraging the potential of their networks, cultivated over years. We regularly launch new projects founded on long-term, amicable relationships with our associates.
Senior Fullstack Java / React
15k–23k zł / mth. (B2B)
I apply to:
ITEAMLY SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
Kraków, Lesser Poland

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