Tanielian Barreira
Senior Backend Developer at Coolblue
Rotterdam, South Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolTanielian Barreira is a Senior Backend Developer based in Rotterdam with two decades of software experience and over a decade in professional roles shaping architecture and integrations. He specializes in C#/.NET backend systems, Entity Framework Core performance tuning, and banking-grade API integrations that unified payment and transfer workflows for major Brazilian banks. At Unimake and RCN&BS he led remote teams, introduced risk-based testing, SonarQube automation, and migrated CI/CD tooling to Azure DevOps to boost quality and deployment reliability. His open-source contributions include enhancing EF Core SQL Server translators for Convert methods, improving data conversion correctness and SQL generation in a widely used .NET ORM. Known for pragmatic mentorship, he steadily moves teams toward better code review and testing cultures while solving tricky cold-start and query performance issues. He combines hands-on implementation with an architect’s view, delivering maintainable, high-throughput systems in regulated domains.
11 years of coding experience
15 years of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at Centro Universitário Farias Brito
Portuguese, English
Stackoverflow
305reputation
14kreached
1answer
4questions
Github Skills (16)
sql-server10
databases10
entity-framework10
csharp10
dotnet-core10
database10
netstandard9
dotnet-cli9
testing8
linq8
aspnet-web-api6
callback6
asp-net-core-mvc6
linq-to-sql6
datasets6
Programming languages (4)
Github contributions (5)
dotnet/efcore
Jul 2015 - Jul 2015
EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:5 commits, 3 PRs, 12 comments in 12 days
Contributions summary:Tanielian primarily focused on extending the functionality of the Entity Framework Core project. Their contributions involve adding support for various `Convert` methods, particularly within the context of the SQL Server provider. The changes include implementing translators for methods such as `ToInt32`, `ToByte`, `ToDecimal`, and `ToString`, along with the necessary test cases, ensuring proper SQL generation and execution for these conversion operations. These modifications enhance the capabilities of the Entity Framework Core for SQL Server, improving its compatibility and expressiveness in handling data conversions.
pococ-sharpschema-migrationsentity-frameworklinq
TanielianVB/CryptoEdu
Sep 2020 - Jun 2024
Contributions:98 pushes, 1 branch in 3 years 8 months
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