Senior .NET Software Engineer (Barcelona- Hybrid)

Sorry, this job was removed at 10:18 p.m. (CST) on Tuesday, Feb 24, 2026
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Barcelona, Cataluña, ESP
In-Office
Information Technology • Consulting
The Role

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.


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The Company
1,444 Employees
Year Founded: 2014

What We Do

Wizeline, a global technology services provider, builds the best digital products and platforms at scale. We focus on measurable outcomes, partnering with our customers to modernize core technologies, mature data-driven capabilities, and improve user experience.

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