Senior Software Engineer

Client Our client is an established B2B SaaS company building mission-critical software used by large enterprise operators. Their cloud-based platform helps international clients manage complex operational data and make data-driven decisions that improve reliability and reduce costly operational risk. The product is a multi-tenant SaaS solution on a modern Microsoft/.NET stack, integrating with major enterprise systems, and is being extended with AI-powered, predictive features. The company is in a strong growth phase and is actively expanding its engineering teams. Position As a Senior .NET Engineer, you will own backend-heavy features across the platform end-to-end; from architecture and design through development, testing, and into production. This is a role for an engineer who takes genuine ownership of their work, contributes actively to system design, and cares about how software behaves once it reaches real users in a demanding, mission-critical environment. You will work within a module-based team and play a real part in shaping how the product evolves, including how AI is meaningfully integrated into it. Responsibilities Owning backend-heavy features end-to-end, from architecture and design through development, testing, and into production;Building and testing features in C#/.NET within a trunk-based development workflow;Using AI coding assistants (e.g., Claude Code, Codex, Cursor);Contributing to a thoughtful, product-level integration of AI into the platform;Working closely with Product, Design, and a domain expert to translate business needs into reliable implementations. Candidate Your background: Minimum 7 years of building and shipping software within SaaS or enterprise product teams;Deep, hands-on C#/.NET expertise, with engineering grounded in clean, well-structured code;Knowledge of design fundamentals (SOLID, architectural patterns, pragmatic API design);A track record of owning features end-to-end, from the first design decisions through to running in production;A plus if you've built or integrated LLM-based features, or know your way around industrial or asset-intensive domains. Your Stack & Skills: AI coding assistants (e.g., Claude Code, Codex, Cursor) are already part of how you work;Comfortable with relational databases and at home in a cloud environment (Azure, AWS, or GCP);Familiar with modern engineering practices - CI/CD, containerisation (Docker, Kubernetes), and a strong code-review culture;React or another modern frontend framework can be a plus;You communicate comfortably in Croatian and English within an international engineering team. Your Mindset: You take real ownership, care about your features beyond merge, through to how they behave in production;You think about the bigger picture: how your code will be tested, deployed, and maintained;You are product-aware and understand the business context behind what you build;You communicate clearly, collaborate proactively, and approach problems in a structured, pragmatic way. Contact If you are an experienced engineer who takes pride in owning your work end-to-end and is excited to build mission-critical, AI-powered software, we would be pleased to hear from you. We invite you to submit your resume in English. All applications will be handled with the highest level of discretion and confidentiality.