Senior .NET Developer - Linux Development

June 4

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Heimdal®

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

51 - 200 employees

📋 Description

• Take full technical responsibility for a new agent-based product targeting Linux systems. • Build a cross-platform system daemon in .NET 8+, optimized for Ubuntu, CentOS, and Red Hat systems. • Interface with system-level components (package managers, daemons, logs, etc.) to provide seamless and native-like behavior. • Collaborate with internal cybersecurity teams to ensure secure design and implementation across all layers of the agent. • Use Linux scripting (Bash) to streamline deployment, debugging, and operational tasks. • Work alongside DevOps, backend, and security engineers to align on architecture and deployment strategies. • Help onboard additional team members (developers, QA) as the product evolves, and guide technical direction. • Maintain clear documentation, and contribute to testing and code quality strategies.

🎯 Requirements

• 5+ years of experience as a .NET developer, with strong hands-on experience in .NET Core or .NET 8+. • Strong Linux expertise: Comfortable developing and debugging on Linux (Ubuntu, CentOS, Red Hat), including working with system services and terminal tools. • Proficiency in Bash scripting for automation, deployment, or operational tasks. • Solid understanding of cybersecurity fundamentals and secure software development principles. • 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 Experience building software agents or system daemons. • Exposure to low-level Linux internals, system calls, or inter-process communication. • 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).