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Senior C# Backend Developer

SaaS | Industrial IoT | AI-Augmented Engineering

We are looking for a highly experienced C# developer to play a key role in our topology development team. Our organization builds secure Industrial IoT solutions used globally. We are on a mission to raise the bar for secure, scalable, and easy-to-use remote access solutions for industrial environments.

The Role

You will take a senior technical role in an experienced backend team responsible for core parts of our SaaS platform. We expect strong architectural thinking, ownership, and a commitment to software craftsmanship. Your focus will be modern .NET backend services powering our SaaS infrastructure.

Core Technical Competencies

• Advanced C# & .NET
• Deep knowledge of modern C# (async/await, generics, LINQ, reflection, events/delegates).
• Strong understanding of OOP, SOLID principles, and common design patterns.
• Extensive experience with ASP.NET Core and modern .NET.
• Solid experience with dependency injection, configuration, logging, and middleware design.

APIs, Cloud & SaaS Architecture

• Designing and implementing secure RESTful APIs.
• Strong understanding of OAuth2, JWT, authentication and authorization.
• Experience deploying and operating applications in Azure.
• Experience with containerization (Docker; Kubernetes is a plus).
• Ability to design scalable, performant, and observable SaaS systems.

Data & Quality

• Experience with NoSQL document databases (e.g., CouchDB).
• Strong experience with automated testing (xUnit, NUnit, MSTest).
• Comfortable with TDD/BDD and CI/CD pipelines.
• Experience profiling and optimizing performance.

Security & OT (Preferred)

• Strong application security mindset (encryption, secure coding practices).
• Familiarity with OT protocols (Modbus, OPC UA, MQTT) and ICS/SCADA environments is a plus.

Agentic & AI-Augmented Engineering

We expect senior engineers to actively leverage modern AI tools as force multipliers — not shortcuts.

• Daily use of AI coding assistants (e.g., Claude Code, GitHub Copilot, ChatGPT or similar) in structured development workflows.
• Ability to decompose complex architectural or refactoring tasks into clear, iterative steps that can be executed collaboratively with AI tools.
• Experience generating production-ready code, tests, documentation, and refactorings using AI — while maintaining full ownership of quality.
• Strong critical thinking and engineering judgment: validating correctness, security, performance, and edge cases in AI-generated output.
• Ability to design structured prompts and workflows that improve repeatability and developer productivity.
• Interest in building internal tooling, automation, and AI-assisted development pipelines.
• Curiosity about integrating AI-powered capabilities into SaaS products is a plus.

We see AI-assisted development as part of modern software craftsmanship — combined with strong fundamentals and responsibility.

You Can Expect

At our organization, we hire for teams — not just skillsets. Each team owns its architecture within clear guardrails, maintains its own build and deployment pipelines, and continuously improves its engineering practices. We are steadily moving toward continuous delivery and expect you to contribute to a strong culture of quality, automation, and technical excellence. We are driven by innovation and agile development, working closely with technology partners and customers worldwide. We offer a flexible, inclusive, and international work environment where strong engineers can have real architectural impact.

Job Title: DevOps Engineer

We are looking for an experienced DevOps Engineer to join our growing technical team. In this role, you will play an important part in strengthening system reliability, improving automation, and supporting the alignment between development and operational processes. This is a full-time onsite position.

About the Candidate

• Having at least 5 years of professional experience as a DevOps Engineer.
• Proactive and technically strong with solid experience in configuration management, CI/CD pipelines, and modern DevOps practices.
• Practical experience with tools such as GitHub, CI/CD platforms, and Infrastructure as Code (IaC) practices.
• Fluent in English and conversational in German, allowing effective work across international teams and stakeholders.
• Analytical, detail-oriented, and motivated by improving systems and processes in a structured way.
• Enjoys contributing to transformation initiatives and helping build scalable, sustainable technical solutions.

Key Responsibilities

• Develop and maintain structured configuration management processes to ensure consistency and traceability.
• Manage version control, release processes, and change control activities.
• Coordinate build and release activities in close collaboration with development and operations teams.
• Support and promote DevOps best practices, including CI/CD and IaC.
• Design and implement automation scripts and tools for configuration, provisioning, and deployment.
• Maintain development, test, staging, and production environments in line with defined configurations.

About the Role

We are looking for a developer with a full-stack and DevOps mindset who thrives writing code for the backend (Rust) as well as frontend (TypeScript/React). You may master the entire stack, or you may lean more towards the backend or frontend. We value craftsmanship, and it is important to us that you value writing well-crafted software that is secure and easy to maintain. You’ll report to an Engineering Manager and work in close collaboration with other developers, product management, and design.

Responsibilities

• Develop solutions that deliver customer value every release cycle: Implement features and improvements that make a real difference for our users.
• DevOps responsibility: Take part in the deployment, monitoring, and maintenance of our applications, ensuring seamless operation and quick resolution of any issues that arise.
• Write well-crafted and maintainable code: Produce high-quality code that adheres to best practices in security and maintainability, contributing to the long-term stability and reliability of our platform.
• Contribute to the flow of work in the team: Actively participate in team processes (code reviews, pair programming, and collaborative problem-solving) and help to ensure a smooth and efficient workflow.
• Proactively address technical debt: Identify and resolve areas of the codebase that require refactoring or improvement, helping to maintain a clean and efficient codebase.
• Continuously improve our technology and how we work: Stay up to date with the latest technologies and industry trends, advocating for and implementing improvements to both our technology stack and our development processes.

Qualifications

• Experience: You have at least 2 years of hands-on experience in web application development, both frontend and backend.
• Background: Familiarity with working in a cross-functional agile environment.
• Technology Stack: Our web application is based on Rust and React and is hosted on Azure. The candidate should have experience working across the full stack, from database and backend logic to the frontend. Since Rust forms the core of our backend, the ideal candidate either has Rust experience, or a strong track record with other languages and a desire to learn.
• Desirable Experience: Background in start-up environments, B2B SaaS, and enterprise product development is a plus.