Fraud .NET Developer, AVP

Fraud.NET Developer, AVP

Discover your future at Citi

Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact.

Job Overview

Citi, the leading global bank, has approximately 200 million customer accounts and does business in more than 160 countries and jurisdictions. Citi provides consumers, corporations, governments, and institutions with a broad range of financial products and services, including consumer banking and credit, corporate and investment banking, securities brokerage, transaction services, and wealth management.

Our commitment to diversity includes a workforce that represents the clients we serve from all walks of life, backgrounds, and origins. We foster an environment where the best people want to work. We value and demand respect for others, promote individuals based on merit, and ensure opportunities for personal development are widely available to all. Ideal candidates are innovators with well-rounded backgrounds who bring their authentic selves to work and complement our culture of delivering results with pride. If you are a problem solver who seeks passion in your work, come join us. We'll enable growth and progress together.

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.

Key Responsibilities

Development & Engineering

• 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.

SDLC, DevOps & Compliance

• 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.

Production Support

• 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.

Testing & Release

• Participate in User Acceptance Testing (UAT) and defect resolution to meet release timelines.
• Support production deployments and ensure smooth post-release operations.

Required Qualifications

Technical Skills

• Frontend Development
  • ASP.NET Core, MVC
  • JavaScript, Bootstrap, CSS
• Backend & Services
  • Microservices development using.NET Core
  • Strong understanding of microservices architecture and design patterns
  • RESTful API design and integration
• Database Technologies
  • MS SQL Server (T-SQL)
  • Oracle (PL/SQL)
  • Couchbase or other NoSQL databases
  • Experience designing scalable, high-performance database solutions
• DevOps & SDLC
  • 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

Preferred Qualifications

• 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