09/15/2026 updated

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Senior Full-Stack Developer | .NET, C#, React, Angular, Cloud

Nowe Miasto nad Pilica, Poland
Only remote
Master of Science in Software Engineering
Nowe Miasto nad Pilica, Poland
Only remote
Master of Science in Software Engineering

Profile attachments

Krzysztof (Chris) Dolatowski CV en.pdf

About me

Senior .NET Backend / Full-Stack Engineer specializing in C#, ASP.NET Core, microservices, Azure/AWS, SQL and React/Angular. I build scalable, maintainable systems, solve complex backend challenges and take ownership from architecture and implementation to production.

Clean ArchitectureGitHub CopilotGitHub ActionsAzure FunctionsDDDAzure DevOpsASP.NETJavaScript.NET FrameworkASP.NET MVC FrameworkC Sharp (Programming Language)DevOpsEntity FrameworkGitHubjQueryJQuery UIPostgreSQLMicrosoft SQL ServersMongoDBMySQLModel View Controller (MVC)NoSQLNunitRabbitMQRedisAzure Active DirectoryAWS CLIAngular 2+Azure Service BusAWS CDKRxJSAngular Material.NET CoreReact.jsAsp.net Web ApiBackendAWS ECSXunitMaterial UIKubernetesBicepFull Stack DevelopmentAWS FargateApache KafkaCosmos DBAzure AKSReact ReduxRestful ApiTerraformASP.NET ApplicationsgRPCAWS EKSDockerWeb ApiMicroservices
.NET / Backend Engineering
Senior-level experience with C#, .NET, ASP.NET Core, Web API, EF Core and Dapper. Building scalable APIs, microservices and enterprise backend systems with a strong focus on clean code, performance and maintainability.
Architecture & Distributed Systems
Hands-on experience with Microservices, Clean Architecture, DDD, CQRS and event-driven systems. Practical knowledge of Outbox/Inbox, Saga, idempotency, eventual consistency and resilient distributed architectures.
Azure & AWS
Building cloud solutions using Azure App Service, Functions, Service Bus, AKS and Storage, as well as AWS EC2, ECS/Fargate, Lambda and SQS. Infrastructure automation with Terraform and Bicep.
Messaging & Databases
RabbitMQ, Kafka, Azure Service Bus, AWS SQS and MassTransit. Strong SQL Server and PostgreSQL experience, plus MongoDB, Cosmos DB and DynamoDB. Query optimization, indexing and performance troubleshooting.
React / Angular
Full-stack development with React, Angular and TypeScript, including React Hooks, RxJS and modern component-based architectures.
DevOps & Containers
Docker, Kubernetes, Azure DevOps, GitHub Actions and GitLab CI/CD. Experience building automated pipelines and deploying cloud-native applications.
Engineering & Technical Leadership
SOLID, TDD, xUnit, FluentValidation, code reviews and production troubleshooting. Comfortable taking ownership from architecture and implementation through deployment and production support.

Experience

Professional experience5 - 10 years
Freelancer since2018

Languages

GermanBasic knowledgeEnglishFluentPolishNative speaker

Project history

Senior Full-Stack Developer

Pernod Ricard
Enterprise integration platform connecting external customer systems and services. Delivered API Management and Web Services integrations and scheduled synchronization applications. Built automation around Azure App Registration, Resource Groups, Key Vault and IAM. Modernized ASP.NET MVC monoliths into separate Angular frontend and .NET Core backend applications. Maintained frameworks and libraries on current LTS versions and supported regular system maintenance. Tech: .NET Core, EF, ASP.NET MVC, Angular, Tailwind, Azure, Entra ID, Functions, Key Vault, SQL Server, CI/CD.

Senior Full-Stack Developer / DevOps

Euvic SA (Outsourcing)
Delivered multiple enterprise projects using .NET, .NET Core, Angular and React. Built and optimized cloud infrastructure and automated production deployments. Designed CI/CD pipelines and worked closely with international clients in Agile environments. Tech: .NET Core, EF, Angular, React, AWS, Azure, Docker, PostgreSQL, gRPC, microservices, Terraform/Bicep, DevOps.

Senior Full-Stack Developer

VERA - Norwegian Civil Law Administration
Enterprise case-management and guardianship solution for a Norwegian public-sector organization. Integrated multiple Entra ID tenants and developed Azure Functions for authentication/integration scenarios. Reworked SharePoint applications into separate React frontend and .NET Core backend modules. Integrated OneDrive Business and automated document generation from templates. Improved search performance through MySQL query analysis and indexing. Dockerized applications, migrated workloads to Azure Container Instances and Kubernetes, and built CI/CD pipelines. Implemented infrastructure as code with Terraform and Bicep; supported migration from Azure DevOps pipelines to GitHub Actions. Tech: React, .NET Core, Azure Functions, AKS, ACI, Docker, Terraform, Bicep, Kafka, RabbitMQ, MongoDB, PostgreSQL, Elastic.

Senior Full-Stack Developer

FF Kakel AB (currently Centro)
E-commerce platform based on Litium Accelerator. Designed and implemented e-commerce functionality and integrations. Integrated the platform with Visma ERP and supported production maintenance. Tech: .NET Core, EF, Angular, React, Bootstrap, SCSS, Litium Accelerator, Git.

Senior Full-Stack Developer

VR Sverige AB
Software platform supporting bus, tram and train operations for Swedish and Finnish markets. Designed cloud infrastructure on AWS with focus on low latency and high availability. Implemented container-based service isolation and automated cloud deployments. Developed both .NET backend and Angular frontend applications and integrated external HR systems. Integrated AWS Cognito with Azure Entra ID. Tech: .NET Core, EF, Angular, React, AWS EC2/RDS/Lambda/DynamoDB/CDK, Azure Entra ID, Docker, PostgreSQL, MySQL.

Senior Software Engineer / Team Leader

Rossmann (via Qualent Software)
Retail systems supporting shop management and goods supply. Led and organized the work of a 10-person development team. Delivered shop-management functionality and integrated the solution with a data warehouse. Tech: .NET Framework/Core, EF, Angular, SQL Server, Kafka, CI/CD, Azure DevOps, WinForms/WPF, MVVM.

Software Engineer

Sprint SA
Development of dynamic call-center applications. Built call-center applications using the Avaya framework. Integrated online payments, speech recognition services and customer systems. Tech: Java, Avaya, Google ASR, VoiceLab ASR, Oracle, online payment providers.

Full-Stack Developer

K-Ban Hardware (via Blueberry Systems)
Web application for configuring automatic doors and windows. Designed and developed interactive product configuration functionality. Implemented visual changes using Canvas and automated deployments with Jenkins. Tech: .NET Framework, EF, Hibernate, ASP.NET MVC, AngularJS, SQL Server, KendoUI, Jenkins.

Software Developer

Provident (via Geomant Enterprise Solution)
Large CRM system supporting approximately 4M customers and 200 call-center agents. Developed CRM functionality, database components and integration libraries. Configured and deployed the complete solution and supported production maintenance. Worked closely with the client throughout delivery and operations. Tech: .NET Framework, C++, T-SQL, SQL Server, Altitude Script.

.NET Developer

ABM Data Systems Ltd.
Courier-management application covering orders, deliveries and GPS route optimization. Developed application functionality and user interface. Integrated Google Maps and database systems. Tech: C/C++, .NET Framework, SQL, Qt, MS SQL, InterBase, Firebird, DevExpress, iBatis.

Automation Engineer

Remix SA
Created electrical diagrams, programmed PLCs and developed industrial frontends. Tech: Siemens Step7, Moeller, Mitsubishi.

QA Engineer / Automation Developer

Seco/Warwick Sp. z o.o.
Responsible for product quality, validation, installation and go-live activities. Prepared schedules for factory testing, shipment, installation, commissioning and maintenance. Worked as a team leader for client-site activities and business trips. Tech: Allen Bradley, Siemens Simatic Step7, WonderWare InTouch SCADA, VB Script, Oracle.

Sales & Marketing Engineer

BiG Sp. z o.o.
Prepared schedules and tender calculations and supported customer relationships and company promotion. Tech: AutoCAD, CorelDraw, Easy.

Electrician

INELUS
Wired electrical control cabinets and managed component inventory. Tech: Electrical control systems.

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