Backend Engineer (Hybrid)

7 days ago

Madrid, SpainSenior

Responsibilities

Design, develop, and maintain scalable, secure, and high-performance B2B software products using the Microsoft .NET stack.
Build and maintain backend services and APIs, and participate in architecture discussions, technology evaluations, and system and code reviews.
Translate business requirements into technical specifications and user stories with product managers, designers, and QA.
Take technical ownership of production systems and support root cause analysis, reliability, uptime, and performance optimization.
Drive unit, integration, performance, and test-first development practices.
Contribute to platform refactoring, modernization, build pipelines, observability, and deployment automation.
Collaborate with global Product, Engineering, DevOps, Data, QA, Architecture, and Engineering Operations teams.
Ensure adherence to coding standards, secure development practices, information security policies, and regulatory requirements.

5+ years of experience in .NET software development with C# and ASP.NET Core.
Strong knowledge of object-oriented design, microservices architecture, and REST or GraphQL API development.
Experience with SQL and NoSQL databases, including technologies such as SQL Server, PostgreSQL, Cosmos DB, and MongoDB, plus Redis or similar caching tools.
Advanced understanding of cloud-native architectures, CI/CD pipelines, and DevOps practices, preferably using GCP.
Experience with Docker and Kubernetes.
Experience with Scrum or Kanban, story estimation, code reviews, and pair programming.
Experience working in distributed or remote teams and using Jira, GitHub, Miro, and Azure DevOps.
Understanding of performance optimization, secure development practices, and compliance frameworks such as ISO 27001, GDPR, and SOC 2.
Fluency in English and Spanish, along with strong interpersonal and communication skills.
Preferred experience includes global multicultural organizations, domain-driven design, event-driven architecture, and observability tools such as Sentry and Lighthouse.

Hybrid work model combining remote and onsite work from the Madrid office.
Opportunity to join the founding team of a newly established Technology Hub and influence its culture, processes, and technical direction.
Fast-paced learning environment, high visibility, and opportunities to shape technology strategies.
Access to the stability, resources, and global reach of Colliers.

10,000+ employees