Looking for a job

Petar Paar

@petarpaar

Message

Principal Architect at Microsoft building AI-assisted productivity experiences and secure cloud services.

Croatia

Message

At Microsoft, I architect cloud-hosted .NET services for AI-assisted productivity experiences, helping knowledge workers draft, rewrite, summarize, and discover grounded work context. I integrated grounded AI through secure service boundaries, reducing unnecessary context transfer by 30%.

I’ve also developed reusable .NET APIs and React experiences, and improved reliability and delivery across connected applications. Earlier at Axilis, I delivered ASP.NET MVC portal features and built WPF and Windows Phone client integrations.

Experience

Work history, roles, and key accomplishments

Current

Principal Architect

Current

Microsoft

Oct 2024 - Present (2 years)

Architected cloud-hosted .NET services for contextual content workflows, integrating grounded AI capabilities and hardening authentication flows. Established observability and optimized asynchronous processing to improve reliability and performance.

.NET C#Azure React TypeScript OAuth OpenID Connect Managed Identities Structured logging Distributed Tracing Queue Based Orchestration Retries

Principal Software Engineer

Microsoft

Jun 2021 - Oct 2024 (3 years 4 months)

Modernized shared TypeScript and React components, developed reusable .NET backend APIs, and introduced versioned contracts to reduce breaking changes. Automated package validation and deployment, and expanded test coverage.

TypeScript React .NET C#Azure DevOps Playwright xUnit Contract Testing Code Splitting Caching Deferred Loading Messaging Idempotency

Senior Software Engineer

Microsoft

Mar 2018 - Jun 2021 (3 years 3 months)

Implemented secure ASP.NET and React features for message and calendar workflows, optimized REST API queries and caching, and refactored client state management. Added automated integration coverage for critical flows.

ASP.NET React C#REST APIs Caching State Management Integration Testing Authentication

Software Engineer II

Microsoft

Mar 2016 - Mar 2018 (2 years)

Extended .NET service endpoints for message synchronization and folder workflows, strengthened reliability with retry handling and health checks, and delivered client state improvements. Automated service testing with xUnit.

.NET C#TypeScript Retry handling Idempotent Commands Health Checks xUnit Integration Testing

Software Engineer

Microsoft

Mar 2015 - Mar 2016 (1 year)

Developed graph-backed ASP.NET APIs for document and colleague relevance, implemented TypeScript presentation components, and improved authorization and data filtering. Added automated regression tests.

ASP.NET C#TypeScript GraphQL Authorization Data filtering Regression Testing

Software Engineer/Development Lead

Axilis

Jul 2013 - Feb 2015 (1 year 7 months)

Delivered ASP.NET MVC portal features backed by Azure services, built WPF and Windows Phone client integrations, and implemented REST endpoints and persistence workflows.

ASP.NET MVC C#Azure WPF Windows Phone REST APIs Validation Persistence