Backend Software Developer [26091] at Sopra Steria · Milan

companyDescription CS GROUP, together with HE Space and Sopra Steria, has been successfully providing digital end-to-end systems and engineering services for more than 40 years. With over 2000 employees worldwide, we combine advanced and unique skills in both information technology and space data engineering. We combine entrepreneurial agility with cutting-edge technological expertise. CS GROUP is a leading provider of operational systems and an important and trusted long-term partner for space and defence organisations. At CS GROUP, we are driven by innovation and we value our most important asset: our people. jobDescription Responsibilities As a member of our client's team you will have the following responsibilities: Collaborate with cross-functional teams to gather requirements and translate them into scalable backend solutions. Design, develop, and maintain high-quality backend services using Python applying Domain Driven Design related patterns. Implement RESTful APIs and integrate them with frontend components. Optimize and enhance existing backend features to ensure optimal performance and scalability. Collaborate with DevOps engineers to streamline the deployment and maintenance processes. Write unit tests and participate in code reviews to ensure code quality and maintainability. Stay up to date with emerging technologies and industry trends to continuously improve our backend systems. qualifications Qualifications You will have the following qualifications and relevant experience: Bachelor's or master's degree in Computer Science, Software Engineering, or a related field. Minimum of 3-4 years of experience in backend software development, with a focus on Python. Solid understanding of backend development principles and best practices. Good Knowledge of Domain Driven Design. Experience building RESTful APIs (working with frameworks like FastApi) and integrating them with front-end applications. Knowledge of database systems: SQL (good knowledge of Postgres) and NoSQL and query optimization techniques. Experience with messaging systems like Kafka for building event-driven architectures. Good knowledge of containerization technologies such as Docker. Experience with Git. Familiarity with software development methodologies such as Agile or Scrum. Strong problem-solving skills and ability to troubleshoot complex issues. Excellent teamwork and communication skills. Nice to Have Experience with Test-driven development approach. Knowledge of Java and Kotlin programming languages. Familiarity with cloud platforms like AWS and their associated services. Knowledge orchestration tools like Kubernetes. Understanding of microservices architecture and event-driven systems. Knowledge of gRPC and protobuf. Experience working in Linux environments. additionalInformation This job is located in Milan, Italy. If you think you have what it takes for this job, please send your CV (in English and in Word or PDF) by clicking on the button “Apply for this job” quoting job IT-HP-26091. An exciting and dynamic international working environment awaits you! Inclusive and committed employer, our company works every day to combat all forms of discrimination and promote a respectful working environment. That's why, committed to gender diversity and overall inclusivity, we encourage all applications and profiles. Last apply date: 27/05/2026!