Software Developer, Backend Developer, .NET Developer

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Full Time Professional Dallas, TX, US

11 days ago Requisition

This role builds and maintains the applications and integrations that serve Citadel's internal teams and external customers, with modern AI-assisted development as a core part of how the work gets done. Beyond its direct service line, the role partners with IT leadership and peers across IT and the broader business to ensure exceptional service to Citadel's internal and external customers. The role builds AI-enabled features, automation, and decision-support capabilities into Citadel's applications where they advance business outcomes, stays current as AI tools and workflows advance at a pace this industry has not seen before, manages assigned development work, and is accountable for the quality, reliability, and ongoing support of the applications it builds and maintains.

Trust, respect, and collaboration are central to how Citadel operates, and the IT function embodies that ethos in how its team works together, partners with the rest of the business, and serves the customers Citadel supports.

• Design, build, test, and ship business applications, integrations, and automation that serve Citadel's internal teams and external customers.
• Use AI-assisted development tools as a core part of the daily workflow. Apply current best practices for prompting, task decomposition, context management, and output review. Stay current as the field evolves and bring proven advances into the team's practice.
• Apply rigorous review discipline to AI-generated code, including correctness validation, security review against known vulnerability patterns, test coverage verification, and adherence to Citadel's coding standards. Maintain clear judgment about when AI tools can take the work and when human design, review, or rewrite is required.
• Build AI-enabled features and agent-assisted workflows into Citadel's applications where they advance business outcomes. Apply current patterns for prompting, context, tool use, evaluation, and safety controls.
• Monitor and manage the cost of AI usage across development workflows and AI-enabled features. Share workflow learnings, prompts, and reusable patterns with the development team.
• Work directly with assigned business departments to understand workflows, identify opportunities, and build tools that improve how the business operates. Partner with stakeholders from concept through prototyping, rollout, adoption, and ongoing support.
• Maintain and modernize the existing application portfolio. Pay down technical debt, address security and compliance findings, and keep applications current with platform and dependency updates.
• Integrate applications with Citadel's core platforms, including ERP, finance, identity, and other operational systems, through APIs and data flows.
• Build reporting and analytics deliverables for business consumers using Power BI, Crystal Reports, and the data flows that feed them.
• Develop in Citadel's primary stack (.NET, C#, web technologies, SQL Server) with the supporting toolchain (Visual Studio, Git, IDE integrations, and AI assistants). Design and maintain database schemas, queries, stored procedures, and reporting data flows.
• Apply secure development practices, including input validation, secrets management, authentication and authorization controls, dependency management, and peer code review.
• Perform in line with established sprint commitments, quality targets, and team KPIs. Participate in sprint planning, backlog grooming, and peer code review.
• Take ownership of incidents and issues in applications built or maintained by this role. Participate in on-call coverage as scheduled. Diagnose, fix, communicate root cause and resolution, and maintain runbooks and technical documentation.
• Identify and propose improvements in architecture, integration patterns, reusable components, deployment, and technical debt. Lead approved initiatives through delivery.
• Other duties as assigned.
• Function is incidental or a minimal part of the job.
• Non-essential functions could be redistributed among other team members.
• Reasonable accommodations are made in this area of the job.

• Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related discipline. Equivalent professional experience considered in lieu of degree.
• 3+ years of professional software development experience.
• Hands-on experience with SQL Server, including writing queries and stored procedures and designing schemas.
• Experience integrating applications with third-party systems through APIs.
• Experience working with version control (Git) and modern development workflows, including sprints, peer code review, and continuous integration.
• Hands-on experience using modern AI-assisted development tools as a core part of daily…