Senior Java Developer (f/m/x)

Sii PolskaBiałystok, Kraków, Poznań, Warszawa, Toruń, Wrocław, Rzeszów, Bydgoszcz, Łódź, Piła, Lublin, Katowice, Gdańsk, Szczecinnofluffjobspublished 10/13/2026
Must-have:PythonJavaGoReactNode.jsGitAWSGoogle CloudCloudFullstackDevOpsCI/CDSenior

Join an international team taking ownership of a complex business-critical software platform for a global leader in the energy and maritime industry. As a Senior Software Engineer, you will help drive the platform’s future development, contribute to cloud transformation initiatives, and tackle challenging engineering problems using modern technologies and development practices. This role offers the opportunity to work across software development, cloud, and platform engineering while making a real impact on the product's evolution.

Daily tasks

  • Taking ownership of complex custom software solutions and development pipelines
  • Setting up a cloud-based environment in GCP for development, build, and deployment
  • Collaborating with a team of developers to enhance and maintain the existing solution
  • Utilizing modern technologies, including Java, Python, React.js, Node.js, and Golang
  • Implementing Infrastructure as Code (IaC) automation using tools such as Terraform and Ansible
  • Working with version control systems like GitHub and CI/CD tools like GitHub Actions
  • Maintaining legacy pipelines in Jenkins as needed
  • Exploring opportunities for integrating data streaming solutions such as Kafka or RabbitMQ

Requirements

Minimum 5 years of experience as a Full-stack Java Developer Strong expertise in Java, Python, React.js, Node.js, and Golang Experience with cloud platforms, specifically GCP and AWS Familiarity with Infrastructure as Code (IaC) automation and scripting tools such as Terraform, Ansible Proficient in using GitHub and CI/CD practices Advanced level of English Nice-to-have requirements

Experience with data streaming solutions like Apache Kafka or RabbitMQ Knowledge of power systems, edge computing, or IoT Familiarity with hardware or bare metal solutions

Must have: Java, Golang, React.js, Node.js, Python, GCP

Nice to have: Apache Kafka, RabbitMQ