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Senior Dotnet Developer

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Onsite

Senior Dotnet Developer

Ascendion

Senior Dotnet Developer

Skills

SQL QueriesDockerData Science.NETMicroservicesRabbitMQMachine LearningAISalesforce

1 month ago

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Important information


Contract type:

Permanent

Location:

Madrid, Spain

Work mode:

Onsite

Published on:

25 September 2026

What they need


We are looking for a strong .NET/.NET Core Developer with expertise in ASP.NET Core Web API, REST APIs, multithreading, microservices, Docker, SQL/NoSQL, and messaging platforms such as RabbitMQ/SignalR. The role involves technical design, software delivery, automated testing, CI/CD, and collaboration with partner technology teams in an Agile environment.

Job Responsibilities / Role

  • Take responsibility for the software delivery by ensuring quality and scope expectations are met.
  • Contribute and take ownership of the technical design and ensure all aspects of the system architecture are well documented.
  • Work closely with partner technology teams and to collaborate effectively.

Technical Skills Required:

  • Very deep understanding of .Net/.Net Core and Solid understanding of OO principles.
  • Experience in ASP.NET Core Web API and RESTful API techniques
  • Solid understanding of and experience with multi-threading and asynchronous programming.
  • Familiar with SQL and NoSql databases
  • Hands-on experience with containerisation solutions like Docker.
  • Experience designing and building api based service oriented or microservice architectures.
  • Diligent with automated testing i.e. Nunit/Moq/Cucumber etc.
  • Strong experience with middleware messaging services like Rabbit MQ, TIBCO, SignalR etc.
  • Solid experience with continuous integration and continuous delivery tools like Git, TeamCity etc.
  • Agile development/Software life cycle

About Us:

Ascendion is a global, leading provider of AI-first software engineering services, delivering transformative solutions across North America, APAC, and Europe. We are headquartered in New Jersey. We combine technology and talent to deliver tech debt relief, improve engineering productivity solutions, and accelerate time to value, driving our clients’ digital journeys with efficiency and velocity. Guided by our “Engineering to the power of AI” [EngineeringAI] methodology, we integrate AI into software engineering, enterprise operations, and talent orchestration, to address critical challenges of trust, speed, and capital. For more information, please go to www.ascendion.com

With Ascendion ( www.ascendion.com ), you:

  • Will get to work on numerous challenging and exciting projects on our various offerings including Salesforce, AI/Data Science, Generative AI/ML, Automation, Cloud Enterprise and Product/Platform Engineering.
  • At Ascendion you have high chances of project extension or redeployment to other clients.
  • Additionally, you can also share CV of anyone you know. We have a referral policy in place.

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