(Senior) Fullstack Developer Full-time in Eferding/Home Office
Who We Are
Cyber-Solutions Software GmbH is a software agency with around 15 people in Eferding, 20 minutes from Linz. We build web platforms, portals, and CMS solutions for enterprise clients in energy, industry, and logistics, including VERBUND, EVN, and TGW Logistics. Technologically, we live and breathe .NET, Azure, Umbraco, and Kentico. We are a Microsoft, Umbraco Platinum, and Kentico partner and a member of the Anthropic Claude Partner Network.
AI Is Not a Buzzword for Us
We build AI-first, and we mean it: Claude Code is a standard tool for us, like Git, not a gimmick for Friday afternoons. Our in-house MCP servers connect Claude to our coding standards, our ERP, and our operations logs. With the AI Essentials Toolkit for Umbraco, we build our own AI products, and in client projects we integrate AI features directly via the Claude API. If you want to see what AI-assisted development actually looks like day to day, instead of just reading about it: welcome.
Job Description
Your responsibilities:
- You will design and develop web applications using C#/.NET (ASP.NET Core) and Azure PaaS (App Services, Functions, SQL, Service Bus, etc.)
- You build modern, high-performance front ends using TypeScript/JavaScript, HTML, and CSS
- You translate Figma designs into clean, reusable components that are pixel-perfect and responsive
- You will integrate and expand CMS platforms (Umbraco or Kentico, depending on the project)
- You'll integrate AI features into client projects (Claude API, MCP, Agents)
- You'll work with CI/CD (Azure DevOps, GitHub Actions), perform code reviews, and write testable code
- You'll be in direct contact with our customers, from the initial request through to the go-live
- You'll play an active role in shaping our AI-first development workflow (Claude Code, Skills, MCP)
Your profile:
- At least 3 years of professional experience in software development with C#/.NET; there is no upper limit—senior candidates are expressly welcome
- Practical experience with Azure (PaaS services, deployment, monitoring)
- Solid front-end skills: TypeScript/JavaScript, modern CSS, responsive layouts; you're no stranger to accessibility
- Proficiency in using Figma (design handoff, components, design tokens)
- You see AI-driven development as a way to enhance your craft and want to play an active role in shaping it
- Very good German (at least B2) and good English
- An independent, solution-oriented approach to work and a passion for direct communication with customers
- Nice to have: Experience with one of our CMS platforms (Umbraco, Kentico, or Truvio PIM)
- Nice to have: React, Vue, or Blazor
- Nice to have: Hands-on experience with Claude Code, the Claude API, or MCP
- Nice to have: DevOps expertise (Infrastructure as Code, Bicep, Pipelines)
What we offer:
- Hybrid work: Office in Eferding plus home office, flexible scheduling
- 38.5-hour week according to the IT collective agreement
- Claude Code from day one, plus our own MCP infrastructure and skills library
- Enterprise projects with visible impact instead of anonymous ticket factories
- Short decision-making paths and direct contact to management
- Time and budget for further training and certifications (Microsoft, Umbraco and Co)
- Up-to-date hardware and tooling as needed
- According to the IT collective bargaining agreement, at least 3,954 euros gross per month (ST1 standard level, 14 payments per year). In reality: 57,000 to 75,000+ euros gross per year, depending on experience.
Apply now
If this sounds like you, please send us your detailed application to office@cyber-solutions.at or contact us on social media:
We look forward to seeing you! 😊