Fullstack Developer (Java/React)
Offer summary

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

The project focuses on building modern cloud-native applications using Java and React. Key requirements include experience with RESTful APIs, microservices, CI/CD, and AI/LLM tools. Responsibilities cover full-stack development, architectural decision-making, and ensuring software quality. Offered benefits include private medical care, training budgets, and flexible work arrangements.

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Fullstack Developer (Java/React)

Company: Grape Up Sp. z o.o.

from: 23 June 2026
to: 23 July 2026
17 300 - 22 000net (+ VAT)/ mth.B2B contract (full-time)
14 800 - 19 000gross/ mth.contract of employment
Salary details
basic salary
work trips
Offer parameters
level:mid
working mode:remote • hybrid • full office
Kraków, Grzegórzki
Kraków, GrzegórzkiStanisława Żółkiewskiego 17aView on map

Requirements

Expected technologies

Java
React.js
RESTful API
CI/CD
AWS

Optional technologies

Python
Databricks

Operating system

Windows
macOS

Our requirements

  • 3+ years of experience in full-stack software development using Java and React
  • Experience with CI/CD pipelines and modern software delivery practices
  • Good understanding of RESTful APIs, microservices architecture, and distributed systems
  • Hands-on experience in building cloud-native applications and deploying solutions to cloud environments
  • Understanding of software design principles, testing strategies, and code quality standards
  • Experience in using AI/LLM-powered tools in a professional context
  • Ability to work effectively in Agile teams and collaborate with both technical and non-technical stakeholders
  • Strong problem-solving skills and a proactive approach to delivering business value
  • Very good command of English and Polish, both written and spoken (B2+/C1) – daily collaboration within the team takes place in English

Optional

  • Knowledge of Python
  • Experience in Databricks
  • Openness to (short) Business Trips, both domestic and foreign

Your responsibilities

  • Design, develop, and maintain modern cloud-native applications using Java and React
  • Deliver new features and enhancements across the entire technology stack, from backend services to user-facing interfaces
  • Collaborate closely with business stakeholders, Product Owners, and cross-functional teams to translate business needs into technical solutions
  • Participate in system architecture discussions and contribute to technical decision-making
  • Ensure high software quality through code reviews, automated testing, and continuous improvement initiatives
  • Promote engineering best practices, coding standards, and maintainable software design
  • Continuously seek opportunities to improve development processes, tools, and the overall product quality
  • Be part of an Agile team that values teamwork, feedback, and continuous improvement

About the project

Grape Up is a consulting and technology company helping enterprises build mission-critical applications by leveraging AI, cloud-native technologies, and modern software delivery practices.
As a member of our team, you will collaborate with both Grape Up engineers and client-side specialists to develop innovative digital products. You will be involved in building new solutions, delivering impactful features, and contributing to the continuous evolution of products used by thousands of users worldwide.
Beyond day-to-day development, you will have the opportunity to influence technical decisions, shape system architecture, drive quality improvements, and promote engineering best practices across the project. Working closely with business stakeholders, product teams, and end users, you will help turn business needs into valuable, scalable solutions.
At Grape Up, we believe in long-term career growth rather than short-term assignments. We provide the flexibility to explore new technologies, industries, and challenges while working on ambitious projects for global enterprises. By joining us, you will become part of a culture that values ownership, continuous learning, collaboration, and engineering excellence.

This is how we organize our work

This is how we work

at the client's siteyou focus on a single project at a timeyou can change the projectyou have influence on the technological solutions appliedyou have influence on the productagilescrum

Team members

backend developerfullstack developertechnical leaderautomated test programmerproduct ownerproject managerbusiness analyst

This is how we work on a project

  • Clean Code
  • code quality measures
  • code review
  • pair programming
  • TDD
  • architect / technical leader support
  • Continuous Deployment
  • Continuous Integration
  • DevOps
  • documentation
  • issue tracking tools
  • test automation
  • testing environments
Company

Development opportunities we offer

  • assistance in preparation to public speeches
  • external training
  • industry-specific e-learning platforms
  • substantive support from technological leaders
  • support of IT events
  • technical knowledge exchange within the company

What we offer

  • Non-corporate work environment among experienced engineers
  • Individual growth & development plan supported by cyclical feedback sessions
  • Access to knowledge platforms (e.g. Pluralsight)
  • Equipment of your choice
  • Financing of conferences, external trainings, and certifications
  • Language lessons (English, German and Polish for foreigners)
  • LuxMed private medical care
  • Weekly Lunch & Learn where we meet up in the office, lunch together, and share our knowledge
  • Employee referral program
  • Rewards for the success of the month and year awarded by our employees
  • Special rewards for your years with us (G-Man)
  • Integration activities

Benefits

  • private medical care
  • sharing the costs of foreign language classes
  • sharing the costs of professional training & courses
  • remote work opportunities
  • flexible working time
  • fruits
  • integration events
  • corporate library
  • no dress code
  • video games at work
  • coffee / tea
  • drinks
  • parking space for employees
  • leisure zone
  • extra social benefits
  • baby layette
  • employee referral program
  • charity initiatives

Recruitment stages

  • 1.
    Application
  • 2.
    HR + technical interview
  • 3.
    Meeting with the Manager
  • 4.
    Offer
  • 5.
    Feedback

Grape Up Sp. z o.o.

Hi, we are Grape Up!
Our company provides technology consulting and modern software development services for mission-critical products. We specialize in delivering innovative solutions powered by cloud and AI.

This is how we work

Fullstack Developer (Java/React)
14.8k–19k zł / mth. (CoE), 17.3k–22k zł / mth. (B2B)
I apply to:
Grape Up Sp. z o.o.
Kraków, Grzegórzki
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