Security Software Engineer / Architect (M/W/D) - [26143]

Soprasteria1; Weßling; On-site; EUR 70,000 - 100,000; Full time

Job summary

CS GROUP, together with HE Space and Sopra Steria, is seeking an experienced software professional to design, develop, implement, and test software solutions supporting CYB MNT activities in a dynamic international environment.

Based in Weßling-Oberpfaffenhofen, Germany, you will contribute to software architecture decisions, mentor development teams, and promote Agile practices, TDD, and CI/CD while ensuring cybersecurity requirements and comprehensive technical documentation.

Qualifications

• Bachelor's or Master's degree in Computer Science or equivalent.
• 5+ years of software development or architecture experience.
• Strong knowledge of Python and full-stack development.
• Experience with Docker, GitLab CI/CD, and databases (PostgreSQL/MySQL/MongoDB).

Responsibilities

• Design, develop, implement, and test software solutions for CYB MNT activities.
• Contribute to software architecture decisions and define technical solutions.
• Support the full software development lifecycle from requirements to maintenance.
• Mentor and guide software development team members on practices and architecture.
• Collaborate with Cyber Security Managers to ensure alignment with customer needs.

Skills

Python

Full-stack development

Agile methodologies

OOP

CI/CD

Linux/Windows administration

Software architecture

Education

Bachelor's or Master's in Computer Science

Tools

Docker

Git

GitLab CI/CD

PostgreSQL

MySQL

MongoDB

Django

FastAPI

Flask

JavaScript

HTML

CSS

Linux

Job description

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.

• Design, develop, implement, and test software solutions supporting CYB MNT activities, including vulnerability management, automation, reporting, and cybersecurity operations.
• Contribute to software architecture decisions and define technical solutions aligned with project requirements.
• Support the complete software development lifecycle, including requirements analysis, design, implementation, testing, deployment, and maintenance.
• Guide and mentor software development team members regarding development practices, architecture, and technical approaches.
• Collaborate closely with Cyber Security Managers and Team Leads to ensure software solutions are aligned with customer needs and cybersecurity requirements.
• Develop and maintain technical documentation, including software architecture documentation, coding standards, project documentation, and operational procedures.
• Promote best practices in software engineering, including Agile methodologies, Test-Driven Development, Continuous Integration, and CI/CD processes.
• Support the improvement and automation of existing processes through innovative software solutions.

Necessary Technical Skills

• Completed Bachelor's or Master's degree in Computer Science or an equivalent level of education.
• Minimum of 5 years of relevant work experience or proven experience in software development and software architecture.
• Strong knowledge of software design architecture, full-stack development, Agile methodologies, OOP, and CI/CD practices.
• Deep knowledge of Python, including frameworks (e.g., Django, FastAPI, Flask) and libraries (e.g., pandas, NumPy).
• Practical experience with PostgreSQL, MySQL, and MongoDB.
• Hands-on experience with Docker, Docker Compose, Git, and GitLab CI/CD.
• Familiarity with frontend technologies (JavaScript, HTML, CSS) and scripting languages (Bash, PowerShell).
• Administration experience with both Linux and Windows environments.

Nice-to-Have Technical Skills

• Knowledge of networking protocols and security/encryption standards.
• Active Directory administration experience.
• Understanding of security frameworks and industry compliance standards.
• Experience in cybersecurity architecture or vulnerability management is a big plus.

Necessary Soft Skills

• Strong organizational and time-management skills.
• Ability to understand complex concepts and quickly adapt to new projects and technologies; proactive attitude with a strong willingness to self-study.
• High level of confidentiality and reliability.
• Proven ability to work effectively both independently and as part of a team.
• Excellent technical and non-technical communication skills.
• Very good written and spoken English skills; German language skills are an advantage.

This role is based in Weßling-Oberpfaffenhofen, Germany.

An exciting and dynamic international working environment awaits you!

Last apply date: 15/11/2026!