Senior Software Developer - .NET Architecture (m/f/d)

At DTS Cloud Security, an integral part of the DTS Group, we are at the forefront of innovation in cyber security, managed services and technologies. With our two high-tech data centers and our own security software, we offer customized hybrid solutions to our clients. Enjoy working in one of our 14 locations, with flat hierarchies and an open-door culture. Our diverse and international team of over 450 employees work in a flexible, friendly, and collaborative environment. Discover exciting opportunities with us, where your ideas are valued and your journey is our priority. Be a part of our mission to innovate and secure the digital future.

As a Senior .NET Developer (m/f/d) in the security domain, you will contribute to the design and delivery of secure, high-performance software solutions within a Security Operations Center environment, including responsible use of AI tools such as Claude Code or similar. You will collaborate closely with cross-functional teams, take ownership of technical implementations, and help ensure consistency and quality across the development lifecycle. Your responsibilities include:

• Contribute to software architecture, design reviews, and technical planning sessions
• Participate in and sometimes lead code reviews and peer programming sessions
• Independent and/or joint design and implementation for security and native client applications
• Design, develop, test, and maintain scalable, secure, and high-performance software components
• Collaborate closely with Team Leads, QA engineers, Product Owners, and DevOps teams to build and refine application interfaces
• Serve as a technical focal point for the team, acting as a Lead Developer in planning and mentoring

Your know-how

• 5+ years of professional software development experience in C#, .NET or related and 3+ years in software architecture
  
• Deep understanding of software architecture, design patterns, and system integration principles
  
• Experience with version control (Git), agile development environments (Scrum, Kanban) and familiarity with CI/CD pipelines, DevOps principle
  
  

Your personality

• Excellent problem-solving and analytical thinking skills
  
• Experience mentoring other developers or leading small teams
  
• Strong technical leadership and decision-making skills
  
• Strong communication skills with fluency in written and spoken English
  
  

• 30 days of vacation (regardless of the length of service)
• Private health insurance for our employees and their dependents (spouse/children)
• In-depth, comprehensive training (approx. 1-3 months) in Germany at our expenses included one monthly flight back to Greece during the whole training period
• Go for EAT - Ticket restaurant card
• Modern hybrid way of working, characterized by flexible working arrangements
• Team-oriented working environment and a broad variety of tasks in an international and diverse team, based on trust and transparency
• Continuous opportunity for personal and professional development and learning
• Personal company hardware
• Free snacks and beverages