Senior Engineer - Full Stack (.NET)

We are seeking a Senior Software Engineer to take technical ownership of a mature document automation SaaS product as it transitions into its final lifecycle phase. This role emphasizes system stability, maintaining existing infrastructure, incident management, and targeted improvements, all while upholding high engineering standards.

As a senior member of the team, you will integrate hands-on technical execution with team-level leadership, ensuring the platform continues to be reliable and maintainable.

• SaaS platform for generating Office (Word, Excel, PowerPoint) and PDF documents 
• Hosted on Microsoft Azure, utilizing containerized workloads on AKS
• Backend technology stack includes .NET (C#), Entity Framework, Azure SQL
• Frontend technology utilizes Angular (ADS design system)
• Infrastructure encompasses Azure services such as:
• Azure Kubernetes Service Cluster, Azure SQL Databases 
• Blobs and Table Storage 
• Azure Application Gateway, Traffic Manager
• Application Insights, Networking (VNet, NSG, etc.) 
• Entra ID (formerly Azure AD), Azure Key Vault

• Maintain, update, and optimize Azure infrastructure, including AKS and supporting services
• Take ownership of end-to-end stability and maintenance of the platform, addressing bug fixes, small enhancements, and system improvements
• Design and implement safe, incremental changes across backend (.NET), database, and frontend (Angular) while ensuring code quality and maintainability.

• Lead production incident triage, debugging, and resolution
• Conduct root cause analysis (RCA) and implement preventative fixes
• Enhance monitoring, alerting, and telemetry using Application Insights

• Support controlled system wind-down or migration efforts
• Proactively identify and mitigate technical risks

• Serve as a technical leader within the team, guiding engineering decisions
• Mentor and develop junior engineers through pairing, reviews, and coaching
• Facilitate onboarding and knowledge transfer

• Document system architecture, workflows, and operational procedures
• Collaborate closely with customer success to resolve client-specific issues

• Communicate effectively regarding status, risks, and technical decisions

• 8+ years of professional experience in software engineering
• Extensive expertise in C# / .NET development
• Hands-on experience with Microsoft Azure, particularly:
• AKS (Kubernetes), Azure SQL, Blob Storage
• Azure networking (VNet, NSG, Traffic Manager, App Gateway)
• Experience with containerized applications and cloud infrastructure

Experience working across backend and frontend (Angular, React or similar)

• Solid understanding of databases and Entity Framework
• Proven ability to debug complex production issues and lead incident response
• Strong communication skills and mentorship experience

• Familiarity with Office/Document generation systems or SDKs
• Exposure to security and compliance practices (e.g., OWASP, SOC2)

• The platform remains stable, observable, and well-maintained
• Incidents are quickly resolved with clear root causes and prevention
• Technical debt is reduced through pragmatic improvements

This is a high-impact role focused on engineering excellence in a real-world, high-ownership environment. You will play a critical part in ensuring a smooth and responsible lifecycle for a production system while shaping team practices and mentoring others.