Senior backend developer · Spain

I make complicated
systems boring.

Dependable .NET services, clear APIs, observable Azure infrastructure, and delivery pipelines that move twice as fast.

Email me LinkedIn CV, as PDF
5+
years building production backend systems
3
Microsoft Azure certifications
E2E
ownership from design through production support
Keep reading

01 / Profile

I’m Sammy, a backend engineer with 5+ years modernising critical applications, connecting business platforms, and making delivery more reliable.

My home ground is C# and the Microsoft stack. I’m most useful when work crosses boundaries: application code, pragmatic Azure resource choices, asynchronous messaging, security, SQL, external partners, CI/CD, and production support. I favour sensible architecture, direct communication, and tests that protect real decisions.

Based
Spain
Experience
5+ years
Languages
Spanish / English
Focus
.NET / Azure / SQL

02 / Experience

From enterprise automation to senior ownership of .NET and Azure backends.

Nov 2023 - Present

Senior Backend Developer

Tarlogic

01
  • Cut CI/CD pipeline execution time by approximately 50% while strengthening automated test suites with xUnit.
  • Migrated two business-critical applications to .NET 8 and .NET 10, preserving vendor support and reducing technology obsolescence risk.
  • Evolved and maintained dozens of backend services across microservice and modular-monolith projects, including asynchronous communication through Azure Service Bus.

C# · .NET 8/10 · ASP.NET Core · Azure · xUnit · CI/CD

Aug 2022 - Nov 2023

Software Engineer

Miratech

02
  • Led the migration and development of a business-critical debt-collection application from legacy technology to .NET Core.
  • Designed dozens of SQL Server integrations and automations connecting internal tools and external systems.
  • Optimized data pipelines, complex T-SQL queries, and stored procedures to reduce server load and improve large-volume processing.

.NET Core · SQL Server · Integrations · Modernization

Feb 2021 - Aug 2022

Application Development Associate

Accenture

03
  • Automated dozens of back-office workflows for bulk processing, reducing repetitive manual work and operational effort for a utilities-sector client.
  • Built production data-processing pipelines and system integrations with C#, SSIS, SQL Server, and T-SQL.
  • Optimized SQL functions, stored procedures, batch jobs, and reporting workloads for more efficient execution.

C# · SSIS · SQL Server · T-SQL · Automation

03 / Toolkit

Backend

C# · .NET 8/10 · ASP.NET Core · Entity Framework Core · REST APIs · Authentication & Authorization · Clean Architecture · CQRS · Vertical Slice Architecture

Azure

Azure App Service · Azure Functions · Azure Service Bus · Azure SQL Database · Azure Cosmos DB · Azure DevOps · CI/CD

Databases

SQL Server · T-SQL · Azure SQL · Cosmos DB (NoSQL)

Engineering

OpenAPI / Swagger · Git · Docker · Distributed Systems · Event-driven Messaging · Encryption at Rest · xUnit · Logging & Observability

04 / Background

Education

Higher Technician in Multi-platform Applications Development

CIFP Txurdinaga LHII · 2019 - 2021

Microsoft certifications

05 / Contact

Have a difficult backend?
Let’s make it uneventful.

Email me LinkedIn GitHub Download CV