Senior Backend Developer .NET

Vortal; Lisboa; Presencial; EUR 40 000 - 60 000; Tempo integral

Resumo da oferta

Vortal is seeking an experienced backend developer based in Lisboa, Portugal. The ideal candidate will design, develop, and maintain web applications while ensuring high code quality. Candidates should have over 5 years of experience with .NET technologies, particularly C#, and experience in incident management under pressure.

The role also emphasizes working in an Agile environment and familiarity with Docker, Kubernetes, and CI/CD practices. This is an excellent opportunity to contribute to innovative solutions and improve application performance.

Responsabilidades

• Design, develop, and maintain robust and scalable web applications.
• Create and optimize RESTful APIs using .NET Core.
• Ensure code quality by following best practices.
• Work closely with product and market teams.
• Continuously improve the performance and security of applications.
• Respond to and resolve production incidents timely.
• Conduct root cause analysis for production incidents.
• Monitor application health through observability tools.
• Document incidents, post-mortems, and corrective actions.

Conhecimentos

Backend development

.NET technologies

C#

Entity Framework Core

SQL databases

Docker

Kubernetes

Microservices architectures

RESTful APIs

CI/CD pipelines

Agile methodologies

Production incident management

Debugging skills

Observability and monitoring tools

Formação académica

Graduate in Computer Science or related field

Proficiency in English

Descrição da oferta de emprego

• Design, develop, and maintain robust and scalable web applications.
• Create and optimize RESTful APIs using .NET Core.
• Ensure code quality by following best practices and developing standards.
• Work closely with product and market teams to create innovative solutions.
• Continuously improving the performance and security of applications.
• Respond to and resolve production incidents in a timely manner, acting as a key escalation point for critical issues.
• Conduct root cause analysis (RCA) for production incidents and implement preventive measures to avoid recurrence.
• Monitor application health through observability tools (logs, metrics, traces) and proactively identify risks before they impact end users.
• Document incidents, post-mortems and corrective action plans, contributing to a culture of continuous improvement and knowledge sharing.

Education

• Graduate in Computer Science or a related field.
• Proficiency in English.

Technical/Job Skills, Qualifications and Experience

• + 5 years of professional experience in backend development, with a focus on .NET technologies, C#.
• Experience with Entity Framework Core and SQL databases (e.g., SQL Server).
• Knowledge of Docker and Kubernetes for deployment and scalability.
• Experience with microservices architectures and RESTful APIs.
• Understanding of CI/CD pipelines and tools such as Azure DevOps and GitHub.
• Experience with Agile methodologies (Scrum).
• Proven experience in production incident management, including on-call support, triage, and resolution under pressure.
• Experience with observability and monitoring tools.
• Strong debugging and profiling skills in .NET applications (memory leaks, deadlocks, performance bottlenecks).
• Familiarity with ITSM processes and incident severity classification (P1–P4).
• Experience with distributed tracing and structured logging in cloud environments (Azure preferred).