Senior .NET Software Engineer (Barcelona- Hybrid)

We are:Wizeline, a global AI-centric technology solutions provider, develops cutting-edge, AI-powered digital products and platforms. We partner with clients to leverage data and AI, accelerating market entry and driving business transformation. As a global community of innovators, we foster a culture of growth, collaboration, and impact.With the right people and the right ideas, there’s no limit to what we can achieve

Are you a fit?Sounds awesome, right? Now, let’s make sure you’re a good fit for the role:

Responsibilities:

• Develop, test, and maintain backend microservices and APIs using C# and .NET.

• Implement data access layers and write efficient, optimized T-SQL queries and stored procedures.

• Write unit, functional, and integration tests to ensure code quality and system reliability.

• Participate in code reviews and help foster a collaborative, excellence-driven engineering culture.

• Contribute to the CI/CD pipeline supporting automated builds and deployments.

• Troubleshoot and resolve production issues, ensuring system stability and performance.

• Support microservice deployments using Docker, Kubernetes, and cloud-native patterns.

Must-have Skills

To be successful in this role, you must have:

• 5+ years of professional experience in backend development.

• Excellent working knowledge of .NET Framework with C#, including:

  • Asynchronous programming

  • Queuing, caching, and logging

  • XML/JSON serialization

  • Application security best practices

• Strong SQL Server experience with T-SQL, stored procedures, transactions, ACID principles, normalization, and query optimization.

• Proficiency with data access using Entity Framework, Dapper, and direct SQL queries.

• Expertise in writing unit, functional, performance, soak, and stress tests. (BDD experience is a plus.)

• Strong experience designing and consuming RESTful JSON APIs, including authentication and API Gateway patterns.

• Experience with CI/CD tools such as Git and Jenkins.

• Experience working in both Linux and Windows environments.

• Exposure to Docker, Kubernetes, and serverless patterns on AWS.

• Experience building and deploying microservices at scale.

• Familiarity with infrastructure-as-code tools such as Terraform or Chef is a plus.

• Bachelor’s degree in Computer Science, Engineering, or a related field.

• Strong written and verbal English communication skills.

Nice-to-have Skills

● AI Tooling Proficiency: Leverage one or more AI tools to optimize and augment day-to-day work, including drafting, analysis, research, or process automation. Provide recommendations on effective AI use and identify opportunities to streamline workflows.

What we offer:

• Competitive compensation & total rewards
• Health benefits & wellness programs
• Savings & retirement plans
• Global mobility opportunities
• Flexible work policy and remote-friendly approach
• Happy hours, gaming tournaments, sports activities & more
• Continuous learning & training programs with WizeAcademy
• Free certifications in cloud technologies and coding languages

Find out more about our culture here.