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Ascendion

Senior Dotnet Backend Developer (Multithreading)

Ascendion
Poland · Full-time · Mid-Senior

As a Senior developer you will be responsible for the ensuring the team deliver high quality software, using industry best practices for code management, testing and CI/CD.


Key Responsibilities:

  • 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.


Requirements/Qualifications and Skills:

  • Very deep understanding of .Net/.Net Core and Solid understanding of OO principles.
  • Experience with C# .Net with multithreading, memory management and low latency
  • 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 containerization 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.


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.


Salary Range:

B2B Preferred - PLN 180-200/hour

UoP: PLN 18000 - 21000 gross/month

Key Skills

Ranked by relevance

ai continuous integration continuous delivery containerization salesforce nosql cloud git sql c
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Posted
Mar 05, 2026
Type
Full-time
Level
Mid-Senior
Location
Poland
Company
Ascendion

Industries

Investment Banking

Categories

Engineering

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