Senior Software Engineer

Wilmington, DE

Monday-Friday 8:00 am – 5:00 pm

Hybrid

At CSC, we are seeking a skilled .NET Software Developer to join our engineering team. In this role, you will design, build, and maintain robust solutions for the Global Trust and Agency business domain. The ideal candidate brings strong .NET expertise, a commitment to code quality, and the ability to collaborate effectively across cross-functional teams.

Global Trust and Agency provides trustee, agency, and fiduciary services across structured finance, debt capital markets, and corporate trust transactions worldwide. This role supports development of a global platform within the Global Trust and Agency domain enabling CSC’s global operations.

Some of the things you’ll be doing:

1. Design, develop, and maintain scalable, modular applications using C# and .NET Core.
2. Build and enhance modern web applications using Blazor Server, Blazor WebAssembly, or similar front-end frameworks.
3. Leverage AI-assisted development tools (e.g., GitHub Copilot, Cursor, Claude Code) to improve code quality, testing, refactoring, and development efficiency.
4. Design and optimize data models, database schemas, and application performance using Entity Framework Core and SQL Server.
5. Develop and maintain serverless solutions using Azure Functions or comparable technologies.
6. Create responsive and user-friendly interfaces using Bootstrap or similar CSS frameworks.
7. Translate business requirements into scalable, maintainable technical solutions within Agile development teams.
8. Design, build, and support AI-enabled applications, agents, and intelligent workflows.
9. Evaluate, implement, and optimize AI-augmented software development lifecycle (SDLC) practices.
10. Develop and maintain automated testing solutions for UI, API, and database validation using Playwright and related technologies.
11. Participate in sprint planning, code reviews, testing, CI/CD processes, and collaborative software delivery activities.
12. Troubleshoot application, performance, and testing issues, including test reliability and automation framework improvements.
13. Collaborate with cross-functional teams to deliver high-quality software and drive continuous improvement initiatives.

What technical skills, experience and qualifications do you need?

Software Development

1. Strong experience building scalable applications with C# and .NET Core.
2. Proficiency with modern front-end frameworks, preferably Blazor Server or Blazor WebAssembly.
3. Strong understanding of Entity Framework Core, including data modeling, migrations, LINQ, and performance optimization.
4. Proficiency with SQL Server, including scripting, query tuning, indexing, and execution-plan analysis.
5. Hands-on experience with Azure Functions or similar serverless technologies.
6. Experience developing responsive user interfaces using Bootstrap or comparable frameworks.
7. Familiarity with unit testing frameworks and Git-based version control workflows.
8. Ability to work effectively in Agile development environments.

AI & Intelligent Systems

1. Experience with large language model (LLM) architectures, prompt engineering, retrieval-augmented generation (RAG), semantic search, vector databases, and agentic AI patterns.
2. Hands-on experience building AI agents or AI-enabled workflows.
3. Knowledge of Azure AI Foundry, Azure OpenAI Service, and modern AI/ML frameworks.
4. Ability to design and optimize AI-assisted development processes and workflows.
5. Understanding of AI governance, model limitations, risk considerations, and responsible AI usage.

Test Automation & Quality Engineering

1. Proficiency with Playwright and JavaScript/TypeScript for automated UI, API, and database testing.
2. Strong object-oriented programming (OOP) skills and software engineering fundamentals.
3. Experience delivering complex testing and automation initiatives, including test parallelization and flaky-test remediation.
4. Familiarity with Azure Pipelines, CI/CD practices, Git, and Scrum methodologies.

Preferred Qualifications

1. Experience with MediatR, Clean Architecture, Fluxor, or similar architectural and state management patterns.
2. Experience with resilience frameworks such as Polly.
3. Experience with performance testing tools such as Artillery, JMeter, K6, or Locust.
4. Experience with containerization technologies including Docker and Kubernetes.

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