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Citi Logo Citi · IT - Software Development

.Net Full Stack Developer - Microservices

United States, Jacksonville Employment contract · Job Posted May 05, 2026
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Job Description

We are seeking a skilled Full Stack .NET Developer to join a high-impact enterprise technology team focused on building and automating mission-critical financial applications. In this role, you will design and develop responsive web interfaces, architect scalable database solutions, and build automation workflows that integrate across APIs, databases, and application UIs. Operating at the intersection of software engineering and financial services technology, this position demands both technical depth and cross-functional collaboration, requiring you to partner closely with business, architecture, and analyst teams to translate complex requirements into deliverable solutions. This role reflects market-competitive expectations for full-stack engineers at leading financial institutions and offers the opportunity to contribute directly to system integrations and enterprise-grade application delivery.

Job Responsibility

  • Design, develop, and maintain responsive, user-friendly web interfaces using .NET Core MVC, ASP.NET, Angular, JavaScript, Bootstrap, and CSS, ensuring performance and usability standards are met
  • Architect and develop scalable database schemas, stored procedures, and functions across relational and NoSQL database platforms to support application requirements
  • Create and maintain automated workflows that interact with multiple APIs, databases, and application UIs to drive system integration and process efficiency
  • Collaborate with business stakeholders, architects, and analysts to translate requirements into user stories and provide technical sizing estimates to support prioritization and delivery planning
  • Design, build, and maintain RESTful microservices and backend services using .NET Core, adhering to microservices architecture principles and design patterns
  • Manage code promotion activities and SDLC compliance artifacts, ensuring all required documentation and governance checkpoints are met throughout the software delivery lifecycle
  • Maintain code repository hygiene and ensure developer metrics are consistently achieved across branches, commits, and version control practices
  • Participate in UAT testing cycles and resolve defects in a timely manner to protect release schedules and ensure quality delivery
  • Support CI/CD pipeline operations and DevOps tooling (Harness, Tekton, GitHub) to facilitate reliable, automated deployment and continuous integration practices
  • Contribute to Agile ceremonies including sprint grooming, backlog refinement, and delivery planning, taking ownership of assigned tasks through to completion

Requirements

  • 4-5+ years' experience in full-stack development with expertise in .NET Core MVC, C#, ASP.NET, Angular, JavaScript, Bootstrap, and CSS for front-end
  • and .NET Core microservices for back-end
  • Strong hands-on experience with database design and development across MS SQL, Oracle, and NoSQL platforms (e.g., Couchbase), including schema design, stored procedures, and query optimization
  • Solid understanding of microservices architecture and design patterns, with the ability to design, build, and maintain distributed, loosely coupled services
  • Proficiency in RESTful API design, development, and integration, including experience consuming and exposing APIs across complex enterprise systems
  • Familiarity with DevOps tools and CI/CD pipelines, including Harness, Tekton, and GitHub, with practical experience in deployment automation and version control workflows
  • Proven ability to translate business and functional requirements into technical user stories, provide effort estimates, and deliver code that meets project and compliance standards
  • Experience managing SDLC artifacts and code promotion processes in compliance-driven enterprise environments
  • Exposure to containerization and orchestration technologies such as Docker and OpenShift is preferred
  • Experience with test automation frameworks (e.g., Selenium) and a working knowledge of software quality assurance practices
  • Familiarity with AI fundamentals, including prompt engineering and interaction with AI/ML-integrated tooling, is a plus
  • Bachelor’s degree/University degree or equivalent experience

Nice to have

  • Exposure to containerization and orchestration technologies such as Docker and OpenShift is preferred
  • Experience with test automation frameworks (e.g., Selenium) and a working knowledge of software quality assurance practices
  • Familiarity with AI fundamentals, including prompt engineering and interaction with AI/ML-integrated tooling, is a plus

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
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