Fullstack Developer
Offer summary

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

The project focuses on innovative B2C and B2B digital solution platforms, including web and planning applications for international markets. Technologies used include React, Next.js, Node.js, Java, Spring Boot and Microsoft Azure. Responsibilities cover backend API development, UI creation, CI/CD implementation, platform lifecycle management, and automated testing. Work involves AI-supported tools and cloud-based environments.

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Fullstack Developer

Company: VAILLANT GROUP BUSINESS SERVICES POLAND Sp. z o.o.

from: 15 July 2026
to: 14 August 2026
19 000 - 22 000gross/ mth.contract of employment (full-time)
Salary details
basic salary
fixed bonus (e.g., quarterly, annual)
Offer parameters
level:mid • senior
working mode:hybrid
Katowice, Silesian
Katowice, SilesianAleja Walentego Roździeńskiego 1bView on map

Requirements

Expected technologies

React.js
Next.js
Node.js
Java
Spring Boot
REST APIs
Microsoft Azure

Optional technologies

Docker
Kubernetes
Terraform
CI/CD

Our requirements

  • Qualification: You hold a degree in Computer Science, Software Engineering, or a comparable field.
  • Experience: You bring at least 5 years of hands-on experience in fullstack development within complex, enterprise environments.
  • Know-how and skills: You have strong expertise in React, Next.js, Node.js, as well as Java and Spring Boot, combined with solid knowledge of REST APIs, databases, and cloud environments such as Microsoft Azure.
  • Nice to have: Experience with Docker, Kubernetes, Terraform, CI/CD pipelines, and the integration of AI or Large Language Models will help you stand out.
  • Personality: You are a collaborative team player who enjoys sharing knowledge and thrives in agile environments such as Scrum or Kanban.
  • Language skills: You communicate confidently in English at a minimum B2 level

Your responsibilities

  • By designing advanced planning applications, you contribute directly to the scalability of our digital solutions across international markets.
  • Your responsibilities will include developing robust backend APIs for scheduling, allocation logic, and core platform modules.
  • Together with an interdisciplinary team, you create responsive user interfaces with strong focus on performance, accessibility, and data visualization
  • You actively shape your own AI-supported development environment using modern tools to increase efficiency and innovation.
  • From architectural strategy to operations, you take ownership of the platform lifecycle, including CI/CD and cloud-based environments.
  • Through designing and implementing automated tests, you ensure a stable, secure, and future-proof product landscape.

About the project

In Katowice, we create innovative digital solution platforms that are used in various products for end customers (B2C) and partners (B2B). These include web applications, websites, and planning platforms. We work in a flexible hybrid mode, where the employee can choose the days from the office.

This is how we organize our work

This is how we work

in houseyou focus on a single project at a timeyou focus on product development

Team members

fullstack developer

What makes us special

We take care of a better climate. In every home and our environment. As a successful family business, we have been living up to this claim for over 150 years. We are one of the world's leading providers of heat pumps, digital services and efficient gas heating appliances and offer energy-saving solutions.
You will find sustainability everywhere at the Vaillant Group. In the office, at the production sites and on the road. Around 16,000 employees from over 70 countries are committed to this every day. As an international team, we take responsibility - for our future and that of our planet. We promote your personal development so that you can act with passion and together we can ensure a better climate.
Become part of the Vaillant Group and help us shape the future of heating!
We promote equity and do not tolerate any form of discrimination. We value the uniqueness of each individual and encourage all people to apply.
Company

What we offer

  • Flexible work model: adjustable starting times (7:30 – 9:00AM), hybrid work 70/30, and up to 30 days of remote work from abroad from selected countries.
  • Health & Wellness support: private medical care (Medicover), sports card subsidy (Multisport), group insurance (Warta), and ergonomic office spaces.
  • Time off & balance: additional paid 2 days off and subsidies for recreation.
  • Financial perks: up to 30% discount on company products, support for commuting and eyewear.
  • Growth & Development: access to internal training, mentoring programs, self-learning platform for languages (eTutor) and international projects.
  • Culture & Community: company events, family friendly activities, and open opportunities within Vaillant Group.

Development opportunities we offer

  • assistance in preparation to public speeches
  • conferences abroad
  • conferences in Poland
  • development budget
  • external training
  • industry-specific e-learning platforms
  • intracompany training
  • mentoring
  • space for experimenting
  • substantive support from technological leaders
  • support of IT events
  • technical knowledge exchange within the company
  • time for development of your ideas

Benefits

  • sharing the costs of sports activities
  • private medical care
  • sharing the costs of foreign language classes
  • sharing the costs of professional training & courses
  • life insurance
  • remote work opportunities
  • corporate products and services at discounted prices
  • integration events
  • corporate gym
  • saving & investment scheme
  • corporate library
  • no dress code
  • coffee / tea
  • parking space for employees
  • leisure zone
  • extra social benefits
  • sharing the costs of tourist services
  • holiday funds
  • sharing the costs of holidays for kids
  • christmas gifts
  • sharing the commuting costs
  • employee referral program
  • opportunity to obtain permits and licenses
  • charity initiatives
  • extra leave
  • Flexi time (start 7:00-9:30)

VAILLANT GROUP BUSINESS SERVICES POLAND Sp. z o.o.

The Vaillant Group is a global market and technology leader in the fields of heating, ventilation and air-conditioning technology. Join our team of 17,000 colleagues from more than 70 countries who work every day for a better climate – for people at home and the environment. We work on large-scale, innovative and strategic projects. With small, everyday gestures so that we can all play our part. Act global, work global. And become part of a global team. We sell our products in around 60 countries, using ten production and development sites in six European countries, as well as China.
Working for us makes you responsible for the future – your own, and that of our planet. We can offer you excellent conditions.
Having a global team of 17,000 colleagues and more than 70 nationalities. And enabling many of them to work flexibly when needed.
Both count. Both are us.

This is how we work

Fullstack Developer
19k–22k zł / mth. (CoE)
I apply to:
VAILLANT GROUP BUSINESS SERVICES POLAND Sp. z o.o.
Katowice, Silesian
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