09/14/2026 updated

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Senior .NET Cloud Engineer | Azure | Backend Architecture | Technical Leadership

Negresti-Oas, Romania
Only remote
BSc in Computer Science, Technical University of Cluj-Napoca, 2015
Negresti-Oas, Romania
Only remote
BSc in Computer Science, Technical University of Cluj-Napoca, 2015

Profile attachments

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About me

Senior .NET Cloud Engineer with 12 years of experience across fintech, energy, pharma and logistics. I build backend and cloud systems, lead engineering teams and take ownership from architecture through delivery. Based in Romania, working remotely with UK, EU and US clients.

ASP.NETMicrosoft AzureC Sharp (Programming Language)Scrum Methodology.NET CoreBackendKubernetesCloud MigrationTerraform
I am a Senior .NET Cloud Engineer with 12 years of experience building systems for fintech, energy, pharma and logistics. My work covers backend architecture, cloud migration, performance tuning, technical leadership and delivery within cross-functional teams.

Backend: C#, .NET through .NET 10, ASP.NET Core, Entity Framework Core, LINQ, T-SQL, Node.js and TypeScript.

Architecture and integration: microservices, modular monoliths, Clean Architecture, domain-driven design, event-driven systems, REST, gRPC, SOAP, WebSockets, webhooks and Microsoft Dynamics 365.

Azure: Functions, Durable Functions, App Service, Service Bus, Event Grid, Event Hub, Logic Apps, Azure SQL, Cosmos DB, Key Vault, Storage, Databricks, Data Lake, Application Insights, Monitor, ARM templates and Azure DevOps.

Data and AWS: SQL Server, Cosmos DB, MongoDB, Redis, Apache Parquet; AWS RDS, SQS, Lambda, S3 and ECS.

Delivery and testing: Agile/Scrum, TDD, NUnit, xUnit, tSQLt, Testcontainers, Cypress, Azure DevOps YAML pipelines, GitHub Actions, GitLab CI, Docker, Kubernetes, Terraform, OpenTelemetry and Sentry.

Frontend: React, Next.js, Angular, Vue.js, Tailwind, MUI and Storybook.

AI-assisted engineering: Claude Code, agent-based development workflows and architecture decision records.

Recent results include 12x faster stock-count cycles for robotic warehouse operations, 65% lower workflow running costs after moving Logic Apps to Azure Functions, 18x higher payment throughput and 70x faster reinsurance pricing workflows.

Experience

Professional experience10+ years
Freelancer since2020

Languages

EnglishFluentRomanianNative speaker

Project history

Senior .NET and Azure Cloud Engineer

Interradish
Warehouse control system for AutoStore robotic storage, integrated with Microsoft Dynamics 365 for a European logistics automation group.

• Built a .NET 10 / ASP.NET Core inventory counting API with Azure Service Bus, guiding operators through 8 steps from opening a robotic port to posting Dynamics 365 journals. Stock-count cycles run 12x faster.
• Re-engineered bulk container updates as a set-based operation under a distributed lock, ending production data conflicts during concurrent updates.
• Migrated putaway workflows from Logic Apps to Azure Functions, preserving ERP callbacks and reducing running costs 65%.
• Designed and maintained the Azure SQL schema: 85 EF Core migrations shipped with zero downtime; temporal tables retain every stock movement.
• Added session recovery after disconnects, logouts and port resets. 95% of interrupted sessions recover, saving about 30 operator-hours per site each month.

Stack: C#, .NET 10, ASP.NET Core, Azure Service Bus, Azure Functions, Azure SQL, EF Core, Dynamics 365, Testcontainers.

Senior Full-Stack .NET Engineer and Team Lead

Hyperbolic
Product configuration and change-control platform for a global biopharmaceutical contract manufacturer, with regulatory traceability across production environments.

• Led the team building the platform on .NET 9, React and Cosmos DB. Built a change detection engine across 6 configuration types that applies global standards to site setups while preserving local customisations. Rollouts take 85% less time.
• Built multi-tab regulatory traceability reports linking parameters, batch configurations and production areas, reducing audit preparation effort 70%.
• Developed Git-style version comparison with multi-level change classification, cutting configuration review time 60%.
• Implemented an approval workflow engine with auto-approve rules, reviewer assignment, state transitions and a full audit trail. Approval cycles fell from days to hours.

Stack: C#, .NET 9, React, Cosmos DB, Azure DevOps.

Senior .NET Cloud Engineer

Nordcloud
Fraud detection and payment processing platform for a UK payment processor serving government agencies.

• Re-platformed decisioning onto an event-driven serverless design using Azure Event Grid and Durable Functions to reprocess failed transactions. Payment throughput rose 18x.
• Redesigned the core message orchestration application as a modular monolith using Clean Architecture, domain-driven design and vertical slices. Covered payment validation across 10 REST/SOAP services and debit reconciliation; development speed rose 60%.
• Built parallel and timer-based Durable Functions workflows and CRON batch jobs through Service Bus queues, making large-scale processing over 30% faster. Primary contact for performance issues.
• Overhauled Azure DevOps CI/CD and added a Digraph dependency graph of release artifacts, reducing build and release times 60%.

Stack: C#, .NET, Azure Durable Functions, Event Grid, Service Bus, REST, SOAP, Azure DevOps.

Senior .NET Cloud Engineer

Cognizant UK
Energy distribution platform for a UK energy company, balancing supplier-to-supplier and supplier-to-consumer distribution.

• Built a data analysis engine that sanitises, groups and reformats over 1 million historical consumption records, using Azure Databricks. Energy balancing solution generation took 79% less time.
• Developed a resilient process orchestrator and graph-based distribution module in C# to balance consumption across 50 major interconnected UK suppliers, raising balancing accuracy to 95%.
• Hardened gRPC, HTTP, Cosmos DB, Redis and Databricks calls with circuit breakers, rate limiting, incremental retries, hedging and fallbacks, cutting transient service failures 60%.
• Automated repeat manual tasks of about 17 minutes each, leaving operations to handle exceptions and reducing operating costs 27%.

Technologies: C#, .NET, Azure Databricks, Cosmos DB, Redis, gRPC, HTTP.

Senior .NET Cloud Engineer

Hexagon UK
Manufacturing asset management application for a UK manufacturer of Formula 1 components.

• Built a suggestion-based data entry processor for manufacturing workflows in C# and .NET Core, reducing manual data management work 45%.
• Delivered a 3D model generator in React and Three.js with 30 drag-and-drop options for real-time rotation, recomposition and resizing, giving engineers immediate feedback during tool generation.
• Integrated continuous analytics into material-specific steel component workflows using .NET Core and computational geometry. Tool integration and deployment each took 30% less time; maintenance took 70% less.
• Used versioned SQL scripts to keep Cosmos DB migrations backward compatible, ending deployment rollbacks.

Technologies: C#, .NET Core, React, Three.js, Cosmos DB, SQL, computational geometry.

Senior Full-Stack .NET Engineer

Cognizant UK
Reinsurance cost calculation platform for a top-50 global reinsurer, replacing manual pricing over datasets of millions of records.

• Developed a multi-threaded probability engine on Azure Durable Functions, running Monte Carlo simulations for catastrophic events over 1 million data points. Main pricing workflows run 70x faster.
• Moved large datasets to Apache Parquet columnar storage, achieving 34x faster data access and 87% less storage.
• Migrated the on-premise solution to Azure Functions, Data Lake and SQL Server, reducing infrastructure costs 60%.
• Raised automated test coverage on the calculation engine to 85%.

Technologies: C#, .NET, Azure Durable Functions, Azure Data Lake, SQL Server, Apache Parquet.

Senior .NET Developer and Team Lead

Evozon
Collaborative HTA submission platform for the medical staff of a UK pharmaceutical company.

• Led the team and built a multi-threaded document processor using .NET and Office UI Fabric to generate 800-page administrative documents from MS Office files. It produces 80% of HTA submission content within minutes, saving up to 2.5 years of manual work.
• Profiled the platform with dotMemory and dotTrace across repeated tuning sessions. Storage uploads became 8x faster, document processing times fell up to 75% and page loads up to 90%.
• Added a content suggestion system using Office UI Fabric and the Open XML SDK, halving internal and external resource costs and cutting the time needed to understand the output by 90%.

Technologies: C#, .NET, Office UI Fabric, Open XML SDK, dotMemory, dotTrace.

Angular and .NET Developer

IBC Focus
Greenfield property platform for a real estate startup, connecting clients directly with construction companies.

• Designed the platform architecture in C#, .NET Framework and Angular. Direct contact between property owners and buyers bypassed agency commissions, reducing buyer transaction costs by up to 5% (about EUR 1,400 on average).
• Delivered marketing automation, lead conversion, Stripe payment and credit modules, residential complex overviews and per-square-foot price estimates. Customer acquisition rose 51% and annual turnover grew 8.1%.
• Tuned the platform with SQL Server Profiler, dotTrace and Azure Application Insights to serve 18,000 parallel users a month. Average response time fell from 5.2 s to 0.8 s.
• Reached 1,800 active users within three months; customer satisfaction rose 42% in a user survey.

Technologies: C#, .NET Framework, Angular, Stripe, SQL Server Profiler, dotTrace, Azure Application Insights.

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