Senior Backend Developer (.NET)

Talcom; Oeiras; Hybrid; EUR 53,000 - 64,000; Full time

Job summary

Emotion Mobility seeks a Senior Backend Developer to join the Engineering team in Oeiras, Portugal, with a hybrid work model requiring 3 days in the office. You will design, implement, and maintain backend services, REST APIs, and databases while adhering to security and quality standards.

Responsibilities span architecture discussions, code reviews, and full SDLC involvement, using Git in an Agile/Scrum setting. 5+ years of experience and right to work in Portugal are required.

Qualifications

• 5+ years of professional software development experience.
• Strong C# and .NET expertise.
• Experience designing and consuming REST APIs.
• Practical knowledge of Dependency Injection.
• Relational databases and SQL proficiency.
• Git and version control best practices.
• Experience in Agile/Scrum teams.
• Professional fluency in English.
• Ability to work from Oeiras office 3 days per week.
• Existing right to work in Portugal.

Responsibilities

• Design, develop, and maintain backend applications using C# and .NET.
• Build and optimise RESTful APIs and backend services.
• Participate in architecture and system design discussions.
• Conduct code reviews and uphold quality and security standards.
• Work with relational SQL databases focusing on integrity and performance.
• Apply DI and clean code practices.
• Contribute across the full development lifecycle—design, test, deploy, support.
• Manage source code and workflows with Git.
• Collaborate in an Agile/Scrum environment and help with sprint planning.

Skills

5+ years experience

C# & .NET

REST APIs

Dependency Injection

Relational Databases

Git & Version Control

Agile/Scrum

English (Fluent)

Oeiras 3 days onsite

Right to work Portugal

Tools

Entity Framework

Dapper

Azure DevOps

Playwright

Job description

We are looking for a Senior Backend Developer to join the Engineering team and contribute to the development and maintenance of Emotion Mobility's web applications, APIs, and backend services.

You will work across the full software development lifecycle, from system design and implementation through testing, deployment, and ongoing support. Code quality, security, maintainability, and engineering best practices are central to the role.

You will report directly to the Engineering Director.

The role is based in Oeiras, Portugal, with a hybrid working model requiring 3 days per week in the office.

What You Will Do

• Design, develop, and maintain backend applications using C# and .NET.
• Build, integrate, and optimize RESTful APIs and backend services.
• Participate in architecture and system design discussions.
• Conduct code reviews and help maintain high engineering and security standards.
• Design and work with relational SQL databases, with a focus on integrity and performance.
• Apply modern engineering practices including Dependency Injection and clean code principles.
• Participate in the full development lifecycle: design, development, testing, deployment, and support.
• Troubleshoot technical issues and provide ongoing application support.
• Manage source code and development workflows using Git.
• Work within an Agile/Scrum environment and contribute to sprint planning, reviews, and retrospectives.

Must Have

• 5+ years of professional software development experience.
• Strong commercial experience with C# and .NET.
• Strong experience developing and consuming REST APIs.
• Practical experience with Dependency Injection.
• Solid experience with relational databases and SQL.
• Strong understanding of Git and version control best practices.
• Experience working in Agile/Scrum development teams.
• Professional fluency in English.
• Ability to work from the Oeiras office 3 days per week.
• Existing right to work in Portugal.

Nice to Have

• Experience with Playwright, particularly reviewing and validating automated tests.
• Experience with Azure DevOps and CI/CD pipelines.
• Knowledge of Domain-Driven Design (DDD) and SOLID principles.
• Experience with ORM frameworks such as Entity Framework or Dapper.
• Familiarity with AI technologies and AI-enabled development solutions.

Employment

This is a standard employment contract. Contractor and freelance arrangements are not available.

Relocation support and visa sponsorship are not provided.

Compensation

• Annual base salary: €58,500
• Additional boost: 5%
• Total annual employee package: €63,893.40