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Fraud .NET Developer, AVP

https://www.citi.com/ Logo

Citi

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Location:
United States , Jacksonville

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Category:
IT - Software Development

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Contract Type:
Employment contract

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Salary:

96960.00 - 145440.00 USD / Year
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Job Description:

We are seeking a skilled Fraud .NET Developer to design, develop, support, and maintain scalable applications that enable fraud detection, prevention, and investigation. This role requires strong hands-on experience with .NET Core, microservices architecture, API development, database technologies, and production support in a highly regulated financial environment.

Job Responsibility:

  • Design and develop automated workflows integrating multiple APIs, databases, and application user interfaces
  • Build, enhance, and maintain microservices-based applications using .NET Core and modern design patterns
  • Design, develop, and optimize database schemas, stored procedures, and functions to support high-volume fraud processing
  • Collaborate with business partners, architects, and analysts to translate requirements into technical user stories and provide accurate development estimates
  • Manage code promotion across environments and maintain required SDLC and compliance artifacts
  • Ensure code repository hygiene, including branching strategies, pull requests, peer reviews, and adherence to developer productivity and quality metrics
  • Participate in CI/CD pipelines, deployment automation, and release activities using DevOps tooling
  • Provide production support for fraud applications, including monitoring, troubleshooting, and resolving application and data issues
  • Investigate and resolve production incidents, root cause defects, and performance issues in accordance with SLAs
  • Partner with operations and business teams to ensure application stability, availability, and reliability
  • Support post-release validation, incident triage, and continuous improvement initiatives
  • Participate in on-call or rotational support as required
  • Participate in User Acceptance Testing (UAT) and defect resolution to meet release timelines
  • Support production deployments and ensure smooth post-release operations

Requirements:

  • ASP.NET Core
  • MVC
  • JavaScript
  • Bootstrap
  • CSS
  • Microservices development using .NET Core
  • Strong understanding of microservices architecture and design patterns
  • RESTful API design and integration
  • MS SQL Server (T-SQL)
  • Oracle (PL/SQL)
  • Couchbase or other NoSQL databases
  • Experience designing scalable, high-performance database solutions
  • Experience with tools such as GitHub, Lightspeed, Harness, and Tekton
  • Strong understanding of CI/CD pipelines, deployment automation, and release management
  • Experience working in regulated, compliance-driven environments

Nice to have:

  • Experience with test automation using Selenium
  • Understanding of AI fundamentals, including prompt engineering, model interaction and integration with enterprise AI tools
  • Experience with containers and orchestration platforms, such as Docker and OpenShift
  • Prior experience in fraud, risk, payments, or financial services technology
  • Experience supporting mission-critical production systems
What we offer:
  • medical, dental & vision coverage
  • 401(k)
  • life, accident, and disability insurance
  • wellness programs
  • paid time off packages, including planned time off (vacation), unplanned time off (sick leave), and paid holidays

Additional Information:

Job Posted:
April 27, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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