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Senior Application Developer

barclays.co.uk Logo

barclays

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Location:
United States , Whippany

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

120000.00 - 175000.00 USD / Year
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Job Description:

Embark on a transformative journey as a Senior Application Developer. At Barclays, our vision is clear – to redefine the future of banking and help craft innovative solutions. In this role, you’ll work as part of a globally distributed development team building desktop trading applications used by equities desks across New York, London, and APAC. You’ll contribute to the development of high-volume trading systems, focusing on performance, stability, and usability for electronic trading users.

Job Responsibility:

  • Development and delivery of high-quality software solutions by using industry aligned programming languages, frameworks, and tools. Ensuring that code is scalable, maintainable, and optimized for performance
  • Cross-functional collaboration with product managers, designers, and other engineers to define software requirements, devise solution strategies, and ensure seamless integration and alignment with business objectives
  • Collaboration with peers, participate in code reviews, and promote a culture of code quality and knowledge sharing
  • Stay informed of industry technology trends and innovations and actively contribute to the organization’s technology communities to foster a culture of technical excellence and growth
  • Adherence to secure coding practices to mitigate vulnerabilities, protect sensitive data, and ensure secure software solutions
  • Implementation of effective unit testing practices to ensure proper code design, readability, and reliability

Requirements:

  • Developing C# applications using .NET WinForms and WPF
  • Building GUI applications using MVP or MVVM design patterns
  • Applying data structures and algorithms in performance-sensitive systems
  • Profiling memory usage and improving application performance
  • Writing and maintaining unit tests

Nice to have:

  • Familiarity with HTML5
  • Experience with JavaScript
  • Exposure to modern UI frameworks such as React or Angular
What we offer:
  • Medical, dental and vision coverage
  • 401(k)
  • Life insurance
  • Other paid leave for qualifying circumstances
  • Competitive holiday allowance
  • Life assurance
  • Private medical care
  • Pension contribution

Additional Information:

Job Posted:
December 23, 2025

Employment Type:
Fulltime
Work Type:
Hybrid work
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