Senior .NET Developer, .NET 8, Back-end Focused, Cybersecurity Products

🕒 November 6, 2025

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Heimdal®

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51 - 200 employees

Heimdal is an industry-leading unified and AI-powered cybersecurity solutions provider established in Copenhagen in 2014.

📋 Description

• Develop complex business applications using the latest tools and technologies. • Bring fresh and new ways to improve and maintain high standards of software quality within the team. • Ability to prioritize and easily adapt to new and different situations. • Work with other software developers to plan, design, test and deliver results at time. • Pragmatism skills to quickly assess information, identify problems, and find the best solutions in an ever-changing work environment.

🎯 Requirements

• 5+ years of hands-on experience with .NET Core / .NET 8+. • Strong C# fundamentals with experience building and deploying cross-platform or backend services. • Experience building and deploying cross-platform applications using .NET. • Familiar with REST APIs, microservices, and general principles of scalable backend communication. • Self-driven, structured, and capable of working independently in a startup-like environment. • Nice to Have: Understanding of cybersecurity fundamentals and secure software development principles. • Familiarity with CI/CD pipelines, automated testing, and infrastructure as code. • Experience working with containerized applications (e.g., Docker). • Cloud exposure (Azure, AWS, or GCP).

🏖️ Benefits

• Regina Maria health plan. • Monthly budget in the Benefit platform (800 RON/month). • Additional company-paid days off ("Personal Day" and "Anniversary Days"). • Reimbursement for glasses expenses according to company policy. • Referral bonus. • Bookster and LinkedIn Learning subscriptions. • Personal and professional development (trainings and certifications).