Senior Software Engineer - .NET + AI

The role

You will design, build and evolve scalable SaaS applications using .NET/C#, REST APIs, SQL/NoSQL and Flutter or React. You will own end-to-end delivery of significant features, their testing, production health and compliance, and use AI-assisted development tools throughout the work.

What you will do

• Own end-to-end development and technical success of significant features within a product module.
• Design, build and evolve scalable SaaS applications using .NET/C#, REST APIs, SQL/NoSQL and Flutter/React.
• Make sound architectural decisions within your domain and lead technical design reviews for your features.
• Drive testing standards and coverage; contribute to the team's test automation infrastructure.
• Ensure your components meet relevant regulatory and data governance requirements; apply a security-first mindset.
• Collaborate with Product Managers, Designers and Engineers in an agile environment.
• Own production health for your components: monitoring, alerts, dashboards and incident response.
• Use AI-assisted development tools across the engineering lifecycle.
• Judge where AI-generated output can be trusted and where human expertise is essential.
• Write clear design documents and communicate technical decisions and trade-offs.

Required qualifications

• 5-7 years of experience designing and building enterprise-scale SaaS applications with Microsoft technologies (.NET/C#, REST APIs, SQL Server/NoSQL) and Flutter or React.
• 3+ years of experience building highly available, scalable, distributed cloud services (AWS or Azure).
• Strong system design, analytical thinking and problem-solving skills.
• Hands-on experience with AI-assisted development tools (Copilot, Claude Code, Cursor) in production.
• Strong engineering judgment to critically review AI-generated code.
• Excellent communication and collaboration skills.
• Comfortable working in a fast-paced, continuously evolving product organization.

Nice to have

• Experience building developer productivity tooling, prompt libraries, reusable workflows, MCP servers or AI-enabled engineering automation.
• Passion for learning emerging AI-assisted engineering practices.

Before you apply

• Zenoti provides equal employment opportunities and prohibits discrimination and harassment.

About the company

Zenoti provides an all-in-one, cloud-based software platform for the beauty and wellness industry, used by more than 30,000 salons, spas, medspas and fitness studios in over 50 countries. The company reached a $1 billion valuation and has been recognized as a Great Place to Work Certified employer.