Principal Azure/.NET Solution Architect

PersonalInvest

Principal Azure/.NET Solution Architect

Job details

Location: EU

Cooperation: Remote

Seniority levels: Principal

Languages: English - B2, Polish - B2

Skills: .NET, Azure, C#, ASP.NET, CI/CD

We are looking for an experienced Solution Architect to lead the modernization of a large, business-critical platform for a US-based client.

This hands-on leadership role combines strategic architecture ownership with active involvement in technical implementation. You will collaborate directly with engineering teams, senior business stakeholders, and CTO/CIO-level executives.

Your primary goal will be to define the platform’s target architecture and lead its transformation from a monolithic system into a modern, modular, scalable solution built on .NET and Microsoft Azure.

Tech stack: .NET · C# · ASP.NET Core · Azure App Services · Azure SQL · Azure Front Door · Redis · Service Bus · Key Vault · Application Insights · CI/CD

Responsibilities

• Assess the existing architecture, technical dependencies, constraints, and risks.
• Define the target architecture and develop a phased modernization roadmap.
• Lead the transition from a monolithic system to a modular architecture.
• Design scalable, secure, resilient, and maintainable solutions on Azure.
• Make key architectural decisions related to APIs, integrations, data management, and service communication.
• Establish architecture principles, engineering standards, and development guidelines.
• Define approaches to security, observability, monitoring, logging, and production readiness.
• Improve CI/CD practices and support reliable software delivery.
• Work closely with engineering teams during implementation and help resolve complex technical challenges.
• Identify technical debt and architectural risks and prioritize their resolution.
• Present technical solutions and recommendations to CTO/CIO-level stakeholders.
• Ensure that architectural decisions support the client’s long-term business goals.

Why Consider This Role

• Lead the modernization of a large, business-critical enterprise platform.
• Take ownership of the platform’s target architecture and technical roadmap.
• Combine strategic decision-making with hands-on involvement in implementation.
• Work directly with engineering teams and senior stakeholders from a US-based client.
• Influence engineering standards, platform scalability, security, and production reliability.
• Work fully remotely from Europe.

Required Qualifications

• 10+ years of experience in software engineering and solution architecture.
• Strong expertise in .NET, C#, and ASP.NET Core.
• Deep practical knowledge of Microsoft Azure.
• Hands-on experience with Azure App Services, Azure SQL, Azure Front Door, Redis, Service Bus, Key Vault, and Application Insights.
• Proven experience modernizing large monolithic systems and transitioning them to modular architectures.
• Strong background in API and enterprise integration design.
• Solid understanding of security, observability, performance, scalability, and production readiness.
• Experience designing and improving CI/CD processes.
• Ability to translate business requirements into effective technical solutions.
• Experience communicating architectural decisions and risks to CTO/CIO-level stakeholders.
• Fluent English for direct collaboration with a US-based client.

Nice to Have

• Practical experience with Domain-Driven Design, CQRS, or Event-Driven Architecture.
• Experience in insurance, fintech, or another regulated industry.
• Experience designing highly scalable enterprise platforms.

Work Format

• Fully remote within the EU.
• Full-time position.
• US-based client.

Interview Process

1. Initial interview with the recruitment team.
2. Technical interview with the client.
3. An additional final client interview may be arranged if necessary, although the decision is usually made after one technical interview.