Senior Java Engineer IoT

Java

al. Walentego Roździeńskiego 1, Katowice

Vaillant Group Business Services

22 000 - 25 000PLN

Gross per month - Permanent

Full-time

Permanent

Senior

Hybrid

Tech stack

English

C1

Polish

B1

Microservices

advanced

GitOPS

advanced

Azure

advanced

MongoDB

advanced

Kubernetes

advanced

Kafka

advanced

Java

advanced

Spring Boot

advanced

Job description

What we achieve together:

Come and join our R&D team within Vaillant Group in Katowice. You will have opportunity to work on IoT platform with microservices architecture, to build our Smart home solutions and more! As a Software Engineer within R&D structures you will:

• Take an active part in the energy transition by developing novel functions for Vaillant heating systems in the environment of our IoT solution to offer our customers maximum comfort and energy efficiency
• Develop novel functions for the optimized control of our heating systems based on the analysis of existing data and the implementation of intelligent control algorithms using modern technologies
• Take responsibility for providing the functions from "end to end": you will design software architectures and accompany the implementation of the required components (front-end, back-end, embedded)
• Deploy the developed components on our Kubernetes cluster and automate the operation of the software components in the cloud (MS Azure)
• Be a part of a cross-functional, self-managed team, design the software architecture together with the architects and ensure its implementation

What makes us successful together:

• You have at least 5 years of professional experience in software development, including Java, with current frameworks (Spring Boot, Quarkus, or similar) and are familiar with microservices architecture
• You know what it means to be responsible for the deployment, maintenance and monitoring of your software components on our Azure Kubernetes Cluster. You know Kafka, Mongo DB, GitOps
• You are experienced in conceptualizing, implementing, and documenting complex functional relationships in a software system
• You are experienced in working in agile project teams (SCRUM) and ideally also know the area of conflict between agile and classic project procedures from your own experience
• You have the desire to help shape Vaillant's digital future and exceed our customers' expectations

What makes us special:

• Environment that cares about your well-being: flexible working hours, hybrid work model and additional 2 days off per year for every employee
• Package of additional benefits: private medical care, multi-sport card
• A fast growing, agile and very dynamic team that challenges established routines and helps transforming the Vaillant Group to a data informed business
• Constant learning opportunities for both technical and personal growth through a range of workshops, seminars, events, and e-learnings
• We continually pull together, organize tech meetups, take part in conferences and celebrate successes
• We promote equity and do not tolerate any form of discrimination. We value the uniqueness of each individual and encourage all people to apply

Published: 16.08.2025

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