Senior Backend Engineer (.NET, Azure, SQL Server)

Trinetix
Barcelona, Spain
8 days ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English

Job location

Barcelona, Spain

Tech stack

.NET
API
Automation of Tests
Azure
Cloud Computing
Databases
Continuous Integration
Software Debugging
Software Design Patterns
Microsoft SQL Server
Performance Tuning
Query Optimization
Azure
Azure DevOps Pipelines
Data Logging
Data Processing
Backend
Angular
Front End Software Development
Microservices

Job description

The engineer will work primarily on a .NET 9 backend with SQL Server, serving an Angular frontend, and will be expected to contribute across development, CI/CD, and operational support. The environment values realism and adaptability over rigid adherence to theoretical Patterns.

Primary Stack

  • Backend: .NET 9
  • Frontend: Angular
  • Database: SQL Server
  • Tooling: Azure DevOps (Repos, Boards, Pipelines)
  • CI/CD: Azure DevOps Pipelines
  • Cloud: Azure (practical, application-level usage)

Core Responsibilities

  • Design, build, and maintain backend services for a production-grade employee productivity and ranking system
  • Own and evolve SQL Server schemas, queries, and performance-critical paths
  • Build and maintain CI/CD pipelines in Azure DevOps for reliable delivery to production
  • Integrate and process data from Azure DevOps to generate metrics, analytics, and connection graphs
  • Support production applications, including troubleshooting, performance tuning, and incident resolution
  • Ensure safe handling of sensitive employee and productivity data across logging, debugging, and operations
  • Collaborate with frontend developers to deliver stable, well-designed APIs
  • Make pragmatic engineering decisions that balance correctness, maintainability, and delivery constraints

Requirements

Do you have experience in Usability?, We are seeking a senior backend engineer. The role focuses on building, evolving, and operating a .NET-based backend that processes sensitive organizational data and derives meaningful metrics and relationship graphs from Azure DevOps sources. This is a hands-on engineering role with strong emphasis on production stability, data correctness, and pragmatic decision-making., * Strong senior-level backend development experience with .NET

  • Proven experience supporting and operating production applications
  • Solid SQL Server expertise, including performance tuning and query optimization
  • Hands-on experience with Azure DevOps and CI/CD pipelines
  • Practical Azure cloud experience sufficient to reason about deployments and operational constraints
  • Experience working with sensitive or confidential data in enterprise environments
  • Pragmatic mindset: able to adapt solutions to project realities rather than blindly following patterns

Nice to Have

  • Writing automated tests and understanding where they add the most value
  • Familiarity with common architectural and design patterns, applied pragmatically
  • Experience improving observability, diagnostics, and operational readiness
  • Awareness of frontend consumption patterns and API usability considerations
  • Willingness to challenge designs constructively and suggest simpler or more robust alternatives
  • Experience integrating with Microsoft Graph, including working with Entra ID (Azure AD) backed organizational data (users, groups, hierarchies, permissions), understanding
  • Graph API throttling, permissions models, and safe handling of directory and identity-related data.

About the company

Established in 2011, Trinetix is a dynamic tech service provider supporting enterprise clients around the world. Headquartered in Nashville, Tennessee, we have a global team of over 1,000 professionals and delivery centers across Europe, the United States, and Argentina. We partner with leading global brands, delivering innovative digital solutions across Fintech, Professional Services, Logistics, Healthcare, and Agriculture. Our operations are driven by a strong business vision, a people-first culture, and a commitment to responsible growth. We actively give back to the community through various CSR activities and adhere to international principles for sustainable development and business ethics. To learn more about how we collect, process, and store your personal data, please review our Privacy Notice: https://www.trinetix.com/corporate-policies/privacy-notice

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