.NET Full Stack Developer – C#, M365 & Cybersecurity

As a **.NET** **Full Stack Developer in R&D** , you will contribute to designing and building high-quality prototypes and proof-of-concepts focused on Microsoft 365 and cybersecurity. Your work will help validate ideas, de-risk technical decisions, and accelerate product innovation across the organization. You will collaborate closely with the Head of R&D, transforming abstract concepts into concrete, secure implementations. **About the Team** The R&D team within Product Development Center (PDC) acts as an innovation engine within the organization. Our mission is to: - Build industry-level prototypes that explore new ideas, technologies, and approaches - Proactively suggest innovative solutions and technical directions to the Product Management team - Serve as a technical leverage point for Software Architects and Development teams We work ahead of product roadmaps, turning emerging Microsoft 365 security challenges into tangible, working solutions that influence future products. **Your Job** - Design and implement industry-grade prototypes using C# / .NET and modern frontend technologies - Build full-stack solutions integrating deeply with Microsoft 365 services (e.g. Graph API, Exchange, SharePoint, Teams, Entra ID) - Apply security-by-design principles across application architecture and implementation - Explore new Microsoft 365 features and assess their security and product potential - Provide technical input and recommendations to Head of R&D based on hands-on experimentation **Your Profile** - Strong proficiency in C# and .NET - Hands-on experience integrating with Microsoft 365 - Solid understanding of Microsoft 365 security concepts, including: - Identity & access management (Entra ID) - Permissions, roles, and consent models - Secure API access (OAuth2, delegated vs application permissions) - Experience building and consuming RESTful APIs - A security-aware mindset and strong interest in cloud and SaaS security *Nice to Have* - Experience with R&D, prototyping, or proof-of-concept development - Knowledge of Zero Trust principles and Microsoft security tooling - Familiarity with CI/CD pipelines **Your Benefits** - A creative and innovative working environment within a high-growth cybersecurity company. - The chance to work on real R&D initiatives that shape future products. - Access to learning resources, training programs, and time allocated for skill development. - A supportive team culture that values experimentation, learning, and continuous improvement. - Extensive onboarding including a welcome kit, a 2-day onboarding bootcamp, a mentoring program, and regular feedback meetings. - Temporary Employee Exchange Program – opportunity to work at our global offices (Berlin, Madrid, Malta, Montréal, Washington D.C.). - Home-office option and flexible working time. - Unlimited contracts – we are looking for long-term colleagues. - Be Active Bonus – partnership with FitKit providing membership credits. - Referral Bonus – 1500€ for each successful referral. - Office dogs are welcome. - Team events such as Laser Tag, Office Movie Nights, Foodie Fridays, and much more. Burimi: https://mk.linkedin.com/jobs/view/net-full-stack-developer-%E2%80%93-c%23-m365-cybersecurity-at-hornetsecurity-4420425053

Niveli: mid level