08.10.2026 aktualisiert
100 % verfügbar
Senior .NET/Angular/React Full Stack Developer
1, Moldawien
Weltweit
Bachelor's Degree in Computer Science, Technical University of MoldovaÜber mich
Senior .NET / C# engineer with 6 years building scalable, event-driven systems on AWS and Azure for commodities trading, fintech, travel and insurance clients. I combine hands-on engineering with delivery leadership: stabilizing teams, fixing production issues and shipping reliably.
Skills
AI AgentsC#Angular 2+AWS CDKDocker ContainerReact.jsAWS ECSAngularJSAWS EKS
Senior .NET / C# Full Stack Engineer with 6 years of experience building scalable enterprise applications, microservices and event-driven systems on AWS and Azure.
DOMAINS
- Commodities trading, fintech, travel tech (hotel search, pricing, supplier integrations), insurance
BACKEND
- C#, .NET, .NET Core, ASP.NET Core Web API, REST APIs
- Entity Framework Core, Dapper, NHibernate, LINQ
- MediatR, MassTransit, SignalR, FluentValidation, Polly, Hangfire, Quartz
- Testing: xUnit, MSTest, Moq, AutoFixture, FluentAssertions
FRONTEND
- Angular, React, TypeScript, JavaScript, HTML, CSS
DATABASES
- SQL Server, T-SQL, PostgreSQL, Aurora PostgreSQL, MySQL, MongoDB, Redis, DynamoDB
- SQL performance tuning, query optimization, database migrations
MESSAGING AND ARCHITECTURE
- Apache Kafka, RabbitMQ, AWS SNS/SQS, Azure Service Bus, Change Data Capture (CDC)
- Event-driven architecture, microservices, CQRS, DDD, Clean Architecture, Vertical Slice
CLOUD AND DEVOPS
- AWS: ECS, EKS, Lambda, API Gateway, EventBridge, SNS, SQS, MSK, S3, RDS, DMS, KMS, CloudWatch
- Azure: Functions, API Management, Azure AD, Azure DevOps
- Docker, Kubernetes, Terraform, Argo CD, GitOps, GitHub Actions, GitLab CI, CI/CD
OBSERVABILITY AND PERFORMANCE
- New Relic, CloudWatch, monitoring and alerting, load and performance testing
AI
- AI-assisted development (Claude Code, GitHub Copilot, Cursor), MCP servers, AI agents, prompt engineering
LEADERSHIP
- Technical lead, production stabilization, delivery process improvement (Kanban, Scrum), cloud migration strategy
Erfahrung
Berufserfahrung5 - 10 Jahre
Freelancer seit2020
Sprachen
Englishverhandlungssicher
Projekthistorie
Large UK travel booking platform for 1M+ customers in the UK and Europe, wanted to dominate the market and compete on hotel availability, pricing with 3rd-party supplier integrations across their search pipeline.
- Drastically improved search response times for low-latency reads at high throughput from 3s to 200ms, by searching in the database for availability combinations based on a pre-computed hash table and by re-using precalculated combinations from hashes for day availability.
- Scaled the Inventory Management System, by migrating the cache layer from SQL Server to DynamoDB, by consolidating all supplier data into a single source of truth for all downstream search systems.
- Streamlined search availability from 160 suppliers, by improving the REST microservice performance, by migrating from an SQL Server to PostgreSQL to handle high-volume data using Amazon ElastiCache(Redis) and C# and .NET.
- Eliminated availability gaps and stale cache data in the event-driven architecture by designing a Databricks and .NET microservice pipeline that auto-queries suppliers for fresh details for the primary cache for most popular searches.
- Strengthened supplier integration stability by implementing a Redis-backed distributed semaphore with a token bucket, with slot limits under high load, and retry policies using Polly for resilience and rate limiting with Nginx.
- Developed a greenfield module for a centralized supplier configuration system using React.js and .NET APIs.
A top German company in the insurance sector, wanted to scale and modernize their financial management platform for insurance brokers across Germany.
- Successfully supported 44k insurance brokers from the DACH region, by integrating with the 100 insurance companies from Germany for contract signing using REST microservices and .NET Framework.
- Architected a greenfield application, by developing core transfer services applying choreography for life insurance, property insurance and pension schemes modules in .NET Framework and by integrating with the 3rd party, eDocBox for digital signatures.
- Ensured the stability of the whole platform, by developing the backward compatible migration process which automated all the processes from document generation to digital contract signing to a new workflow using Angular, C# and .NET WebAPI.
- Setup observability for performance monitoring purposes by interconnecting DataDog with Amazon SNS and Amazon SQS event processing, improving platform stability through Azure DevOps pipelines, deployment guidelines, and unit/integration tests using xUnit, FluentAssertions.
An innovative company from Israel, supporting Fortune 500 companies, such as Tesla, Disney and BMW, wanted to extend its offering regarding software license management and how licenses are allocated for large companies.
- Reduced license costs and developed a custom greenfield application for employee offboarding, by automatically de-provisioning licenses and by synchronizing Active Directory with Amazon Cloud Credential Manager and Kafka.
- Successfully enabled vast organizational data transfers, by integrating with Google Cloud Directory Sync to import all the company organizational hierarchy structure using C# and Google Admin SDK Directory API.
- Enhanced core functionality by designing and implementing a comprehensive notification system for email, ticketing, and push notifications using SignalR and integrating Google Firebase Cloud Messaging.