Bartosz Litwa-Software Engineer | Full Stack .NET Engineer | Azure & DevOps
Check rate
Experience
Junior .NET Developer II – .NET Developer III – Senior Test Automation Engineer
KPMG Poland
- Built and maintained applications using .NET, Angular, Azure, and Azure DevOps, including CI/CD processes.
- Led the migration of a microservice from Azure Cosmos DB to Azure SQL with Entity Framework Core, including data migrations and cleanup.
- Introduced Cosmos DB container bundling in a multitenant application, reducing cost by 90% and improving RU management.
- Set up supporting Azure Data Factory infrastructure, integrating Azure Functions, Managed Identities, Key Vault, RBAC, Cosmos DB, Azure SQL, and Azure Blob Storage.
- Supported runtime tenant sharding across Azure SQL, Cosmos DB, and Blob Storage for multiple microservices.
- Built import, export, and migration flows for dynamic configurations powering data-driven forms, with in-memory optimizations for better performance.
- Maintained Selenium automation tests in C# and supported migration to Playwright with TypeScript to improve stability and test coverage.
- Implemented .NET Aspire with Podman to orchestrate the local development environment and improve developer experience.
Software Engineer - Fullstack .NET Developer
KPMG Poland
Built and maintained applications using .NET, Angular, Azure, and Azure DevOps, including CI/CD processes.
- Led the migration of a microservice from Azure Cosmos DB to Azure SQL with Entity Framework Core, including data migrations and cleanup.
- Introduced Cosmos DB container bundling in a multitenant application, reducing cost by 90% and improving RU management.
- Set up supporting Azure Data Factory infrastructure, integrating Azure Functions, Managed Identities, Key Vault, RBAC, Cosmos DB, Azure SQL, and Azure Blob Storage.
- Supported runtime tenant sharding across Azure SQL, Cosmos DB, and Blob Storage for multiple microservices.
- Built import, export, and migration flows for dynamic configurations powering data-driven forms, with in-memory optimizations for better performance.
- Maintained Selenium automation tests in C# and supported migration to Playwright with TypeScript to improve stability and test coverage.
- Implemented .NET Aspire with Podman to orchestrate the local development environment and improve developer experience.
Junior Full Stack Developer
Coded Projects
- Developed full-stack features using React, TypeScript, Chart.js, C#, ASP.NET Core, SQL, Entity Framework, and stored procedures in a microservices-based environment.
- Contributed to code reviews, debugging, testing, and UI improvements across frontend and backend applications.
Junior Software Engineer
Polish Rope Pulling Association
- Built a C# integration tool to sort and merge local files for migration to a web service.
- Automated repetitive workflows with Excel VBA, reducing manual errors and making data migration 10x faster.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Professional Services, Information Technology, and Sport.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Quality Assurance, and Product Development.
Summary
Full-stack .NET engineer with 4+ years of experience building cloud-native, microservices-based and multitenant applications with .NET, Angular, Azure, and Azure DevOps. Strong focus on cloud architecture, CI/CD, data migration, cost optimization, automated testing, and developer experience.
Skills
- Backend: C#, .Net, Asp.Net Core, Entity Framework Core, Sql
- Frontend: Angular, Typescript, Javascript, React, Html, Css
- Cloud & Devops: Azure, Azure Devops, Yaml Pipelines, Ci/Cd, Azure Functions, Azure App Service, Azure Storage, Azure Cosmos Db, Azure Sql, Azure Data Factory, Key Vault, Managed Identities, Rbac
- Testing & Tools: Playwright, Selenium, Git, Postman, Bruno, Docker, Podman, .Net Aspire
Languages
Education
Polish-Japanese Academy of Information Technology
Bachelor of Engineering · Computer Science · Warsaw, Poland
Certifications & licenses
Azure AI Fundamentals AI-900
Microsoft
Azure Data Fundamentals DP-900
Microsoft
Azure Developer Associate AZ-204
Microsoft
Azure Fundamentals AZ-900
Microsoft
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Bartosz is based in Warsaw, Poland and can operate in on-site, hybrid, and remote work models.
Bartosz speaks the following languages: Polish (Native), English (Advanced), Spanish (Elementary).
Bartosz has at least 4 years of experience. During this time, Bartosz has worked in at least 4 different roles and for 3 different companies. The average length of individual experience is 1 year and 1 month. Note that Bartosz may not have shared all experience and actually has more experience.
Based on recent experience, Bartosz would be well-suited for roles such as: Junior .NET Developer II – .NET Developer III – Senior Test Automation Engineer, Software Engineer - Fullstack .NET Developer, Junior Full Stack Developer.
Bartosz's most recent position is Junior .NET Developer II – .NET Developer III – Senior Test Automation Engineer at KPMG Poland.
In recent years, Bartosz has worked for KPMG Poland and Coded Projects.
Bartosz is most experienced in industries like Information Technology, Professional Services, and Sport.
Bartosz is most experienced in business areas like Information Technology, Quality Assurance, and Product Development.
Bartosz holds a Bachelor in Computer Science from Polish-Japanese Academy of Information Technology.
Bartosz has 4 certificates. Among them, these include: Azure AI Fundamentals AI-900, Azure Data Fundamentals DP-900, and Azure Developer Associate AZ-204.
Bartosz is immediately available full-time for suitable projects.
Daily rate distribution
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Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 28 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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