06/29/2026 updated
100 % available
Senior/Lead .NET Contractor | React, Azure/AWS, Microservices, SaaS & Cloud-Native Platforms
Sag, Romania
Only remote
BEng. Computer Science, Polytechnic University of TimisoaraAbout me
Senior/Lead .NET contractor specialized in cloud-native SaaS, microservices, React/TypeScript and Azure/AWS. I help teams modernize platforms, deliver reliable full-stack systems and take ownership from architecture to production.
Azure FunctionsAzure DevOpsRESTful API Modeling LanguageASP.NETArchitectural PatternsUnit TestingSoftware ArchitectureRabbitMQRedisAWS CLIAngular 2+Docker Container.NET CoreAWS LambdaIntegration Tests
Skills & expertise
Senior/Lead Full Stack .NET Engineer with 9+ years of experience building, modernizing and scaling cloud-native software platforms across SaaS, marketing automation, cybersecurity and enterprise systems.
Core expertise: .NET/C#, ASP.NET Core, React, TypeScript, microservices, REST APIs, gRPC, API Gateway patterns, event-driven architecture, Kafka, RabbitMQ, Azure, AWS, Docker, CI/CD, SQL and NoSQL databases.
Most recently, I founded and built Tours, a multilingual B2B SaaS platform for interactive 360° virtual tours with integrated booking. I owned the full product end-to-end: backend microservices, React/TypeScript frontend, custom 3D viewer/editor, AWS deployment, CI/CD, authentication, payments, file storage, automation, monitoring and infrastructure.
At DYMATRIX, I worked as a Senior Software Engineer on the modernization of an enterprise marketing automation platform, helping move from monolithic architecture to .NET microservices. I worked on identity, authentication, React frontends, Azure Functions, Kafka-based processing, CI/CD pipelines and engineering best practices.
Earlier, at OPSWAT, I helped build a cybersecurity product from MVP to commercial release using .NET microservices, MongoDB and Angular, and contributed to cross-platform endpoint security tooling.
I am best suited for contracts involving platform modernization, .NET backend architecture, SaaS development, cloud-native systems, microservices design, full-stack delivery, technical leadership, legacy modernization and rescue projects.
Main technologies:
.NET, C#, ASP.NET Core, .NET 8, .NET 10, React, TypeScript, Angular, Redux, JavaScript, Azure, AWS, Docker, TeamCity, Azure DevOps, CI/CD, MongoDB, PostgreSQL, MSSQL, Redis, RabbitMQ, Kafka, gRPC, REST APIs, OAuth, Stripe, Cloudflare, Nginx, Linux, Python, Bash, PowerShell, Unit Testing, Integration Testing, Cypress, Selenium, Clean Architecture, DDD, CQRS, SOLID, Design Patterns.
Experience
Professional experience5 - 10 years
Freelancer since2021
Languages
EnglishFluentRomanianNative speaker
Project history
Founded and built a multilingual B2B SaaS platform for interactive 360° virtual tours with integrated booking. Owned the full product end-to-end: .NET microservices, React/TypeScript frontend, custom 3D tour viewer/editor, AWS infrastructure, CI/CD, authentication, payments, file storage, automation and monitoring.
Worked on the modernization of an enterprise marketing automation platform, moving from monolithic architecture to scalable .NET microservices. Built identity and authentication features, React frontends, Azure Functions, Kafka-based processing, CI/CD pipelines and supported engineering best practices.
Enhanced enterprise SaaS systems for ESG ratings and corporate sustainability. Built frontend performance improvements, AWS Lambda and .NET features, CI/CD improvements and unit testing coverage.