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.NET Developer

Technology
Haystack
Austin, United States2 months agoUntil 4/26/2026
Full timeHybrid

Job description

  • *Senior .NET Developer | Austin, TX | Hybrid**
We're working with a leading financial services firm dedicated to empowering global institutions through cutting-edge fintech innovation on this exciting opportunity.

Elevate your career by architecting high-performance financial systems that drive market-leading impact. We are looking for a C# powerhouse to lead complex enterprise initiatives, leveraging multithreading, advanced design patterns, and mission-critical backend services in a high-octane Agile environment.

  • *The Role
  • Lead the end-to-end development of complex enterprise applications within a robust C# / .NET architecture.
  • Design and implement high-concurrency solutions focusing on multithreading, memory management, and efficient data structures.
  • Take charge of the full SDLC, ensuring software is scalable, secure, and free of vulnerabilities or code smells.
  • Mentor junior engineers and collaborate with cross-functional teams to define technical strategy and vision.
  • Build and maintain high-performance REST APIs, Web Services, and backend integration layers.
  • *What You'll Need
  • 6-10 years of heavy-hitting experience in Enterprise Application Development.
  • 5+ years of deep expertise in C# and .NET development specifically for Windows platforms.
  • 4+ years of hands-on experience with Web API, REST, WCF, or SOAP Services and database tech (SQL, Oracle, or Mongo DB).
  • Proven track record leading technical projects and mastering CI/CD pipelines with Git, BitBucket, or GitHub.
  • Mastery of Object-Oriented Programming (OOP), Design Patterns, and complex Algorithms.
  • *What's On Offer
  • Competitive compensation with access to comprehensive health, dental, and vision plans.
  • Secure your future with a robust retirement plan including company matching.
  • Work-life balance through a hybrid Austin-based model and paid sick leave.
  • The chance to influence the technical direction of a global financial leader.
  • *Apply via Haystack today!
Keywords
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