Backend Software Developer Visa Sponsorship Jobs in Delaware
Backend software developer roles in Delaware are concentrated in Wilmington, where financial services giants like JPMorgan Chase, Bank of America, and Capital One maintain large technology operations. DuPont and Incyte also hire backend engineers in the Wilmington corridor. Visa sponsorship is common in this market, particularly for candidates with experience in distributed systems, APIs, and cloud infrastructure.
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Get Access To All JobsSenior 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:
- Design, develop, and maintain scalable, modular applications using C# and .NET Core.
- Build and enhance modern web applications using Blazor Server, Blazor WebAssembly, or similar front-end frameworks.
- Leverage AI-assisted development tools (e.g., GitHub Copilot, Cursor, Claude Code) to improve code quality, testing, refactoring, and development efficiency.
- Design and optimize data models, database schemas, and application performance using Entity Framework Core and SQL Server.
- Develop and maintain serverless solutions using Azure Functions or comparable technologies.
- Create responsive and user-friendly interfaces using Bootstrap or similar CSS frameworks.
- Translate business requirements into scalable, maintainable technical solutions within Agile development teams.
- Design, build, and support AI-enabled applications, agents, and intelligent workflows.
- Evaluate, implement, and optimize AI-augmented software development lifecycle (SDLC) practices.
- Develop and maintain automated testing solutions for UI, API, and database validation using Playwright and related technologies.
- Participate in sprint planning, code reviews, testing, CI/CD processes, and collaborative software delivery activities.
- Troubleshoot application, performance, and testing issues, including test reliability and automation framework improvements.
- Collaborate with cross-functional teams to deliver high-quality software and drive continuous improvement initiatives.
What technical skills, experience and qualifications do you need?
Core Development & SDLC
- Experience building scalable, modular applications with C# and .NET Core
- Proficiency in at least one modern front-end framework for building responsive, interactive web applications (e.g., Blazor, React, Angular, or Vue)
- Proficiency with JavaScript and/or TypeScript for modern web application development
- Practical use of AI-assisted development tools such as GitHub Copilot, Cursor, or Claude Code for code generation, refactoring, testing, and review
- Strong grounding in OOP principles and developing high-quality, maintainable, scalable code
- Strong understanding of data modeling, migrations, LINQ, and performance optimization with Entity Framework Core
- Proficiency in SQL Server, including scripting, execution-plan analysis, indexing, and query tuning
- Hands-on experience with Azure Functions or comparable serverless technologies
- Proficiency in responsive UI development using Bootstrap or similar CSS frameworks
- Familiarity with Git, CI/CD pipelines, and collaborative development workflows
- Experience working in Agile/Scrum environments and delivering moderate- to high-complexity work within sprint cycles
- Preferred: familiarity with MediatR, Clean Architecture, Fluxor (or similar state-management libraries), and resilience patterns such as Polly
- Preferred: experience with containers and orchestration technologies such as Docker and Kubernetes
AI & Intelligent Systems
- Experience with LLM architectures, prompt engineering, RAG, semantic search, vector databases, and agentic AI patterns
- Hands-on experience building AI agents or AI-enabled workflows for development, QA, performance testing, or security automation
- Strong knowledge of Azure AI Foundry, Azure OpenAI Service, and modern AI/ML frameworks
- Ability to design and optimize AI-augmented SDLC workflows with measurable efficiency gains
- Familiarity with AI-assisted documentation practices and the ability to evaluate AI-generated output, including awareness of model limitations and risks
Test Automation & Quality Engineering
- Experience with test parallelization, test-data management, and flaky-test triage
- Preferred: proficiency with Playwright for UI, API, and database testing, including mocking
- Preferred: experience with performance-testing tools such as Artillery, JMeter, K6, or Locust
- Preferred: experience in a risk-based, automation-first engineering environment
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:
- Design, develop, and maintain scalable, modular applications using C# and .NET Core.
- Build and enhance modern web applications using Blazor Server, Blazor WebAssembly, or similar front-end frameworks.
- Leverage AI-assisted development tools (e.g., GitHub Copilot, Cursor, Claude Code) to improve code quality, testing, refactoring, and development efficiency.
- Design and optimize data models, database schemas, and application performance using Entity Framework Core and SQL Server.
- Develop and maintain serverless solutions using Azure Functions or comparable technologies.
- Create responsive and user-friendly interfaces using Bootstrap or similar CSS frameworks.
- Translate business requirements into scalable, maintainable technical solutions within Agile development teams.
- Design, build, and support AI-enabled applications, agents, and intelligent workflows.
- Evaluate, implement, and optimize AI-augmented software development lifecycle (SDLC) practices.
- Develop and maintain automated testing solutions for UI, API, and database validation using Playwright and related technologies.
- Participate in sprint planning, code reviews, testing, CI/CD processes, and collaborative software delivery activities.
- Troubleshoot application, performance, and testing issues, including test reliability and automation framework improvements.
- Collaborate with cross-functional teams to deliver high-quality software and drive continuous improvement initiatives.
What technical skills, experience and qualifications do you need?
Core Development & SDLC
- Experience building scalable, modular applications with C# and .NET Core
- Proficiency in at least one modern front-end framework for building responsive, interactive web applications (e.g., Blazor, React, Angular, or Vue)
- Proficiency with JavaScript and/or TypeScript for modern web application development
- Practical use of AI-assisted development tools such as GitHub Copilot, Cursor, or Claude Code for code generation, refactoring, testing, and review
- Strong grounding in OOP principles and developing high-quality, maintainable, scalable code
- Strong understanding of data modeling, migrations, LINQ, and performance optimization with Entity Framework Core
- Proficiency in SQL Server, including scripting, execution-plan analysis, indexing, and query tuning
- Hands-on experience with Azure Functions or comparable serverless technologies
- Proficiency in responsive UI development using Bootstrap or similar CSS frameworks
- Familiarity with Git, CI/CD pipelines, and collaborative development workflows
- Experience working in Agile/Scrum environments and delivering moderate- to high-complexity work within sprint cycles
- Preferred: familiarity with MediatR, Clean Architecture, Fluxor (or similar state-management libraries), and resilience patterns such as Polly
- Preferred: experience with containers and orchestration technologies such as Docker and Kubernetes
AI & Intelligent Systems
- Experience with LLM architectures, prompt engineering, RAG, semantic search, vector databases, and agentic AI patterns
- Hands-on experience building AI agents or AI-enabled workflows for development, QA, performance testing, or security automation
- Strong knowledge of Azure AI Foundry, Azure OpenAI Service, and modern AI/ML frameworks
- Ability to design and optimize AI-augmented SDLC workflows with measurable efficiency gains
- Familiarity with AI-assisted documentation practices and the ability to evaluate AI-generated output, including awareness of model limitations and risks
Test Automation & Quality Engineering
- Experience with test parallelization, test-data management, and flaky-test triage
- Preferred: proficiency with Playwright for UI, API, and database testing, including mocking
- Preferred: experience with performance-testing tools such as Artillery, JMeter, K6, or Locust
- Preferred: experience in a risk-based, automation-first engineering environment
Backend Software Developer Job Roles in Delaware
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Search Backend Software Developer Jobs in DelawareBackend Software Developer Jobs in Delaware: Frequently Asked Questions
Which companies sponsor visas for backend software developers in Delaware?
Wilmington-based financial institutions are the most consistent sponsors for backend software developers in Delaware. JPMorgan Chase, Bank of America, Barclays, and Capital One have all filed H-1B visa Labor Condition Applications for backend engineering roles in the state. Outside finance, life sciences companies like Incyte and AstraZeneca, along with DuPont's technology teams, sponsor backend engineers with strong systems or data infrastructure backgrounds.
Which visa types are most common for backend software developer roles in Delaware?
The H-1B is the most common visa for backend software developers in Delaware, as the role typically qualifies as a specialty occupation requiring at least a bachelor's degree in computer science, software engineering, or a related field. Candidates already holding L-1B intracompany transferee status or TN visa status (for Canadians and Mexicans) may also find pathways through Delaware's large multinational employers in finance and life sciences.
Which cities in Delaware have the most backend software developer sponsorship jobs?
Wilmington accounts for the overwhelming majority of backend software developer sponsorship activity in Delaware. Its concentration of Fortune 500 financial services headquarters and regional tech offices drives consistent demand for backend engineers. Newark, home to the University of Delaware, has a smaller but growing presence, with some startups and mid-size technology firms occasionally sponsoring backend roles near the university corridor.
How to find backend software developer visa sponsorship jobs in Delaware?
Migrate Mate is built specifically for international job seekers and filters backend software developer roles in Delaware by visa sponsorship eligibility, saving you from sorting through listings that won't consider sponsored candidates. Delaware's backend market skews heavily toward financial services and life sciences employers, so filtering by those industries on Migrate Mate will surface the most relevant opportunities for sponsored backend engineering positions in the state.
Are there any state-specific considerations for backend software developers pursuing sponsorship in Delaware?
Delaware's backend engineering market is dominated by established enterprises rather than startups, which affects sponsorship patterns. Large financial institutions and pharma companies have dedicated immigration counsel and structured sponsorship programs, making the process more predictable than at smaller firms. The University of Delaware also produces a pipeline of OPT-eligible backend engineering graduates each year, so employers in Newark and Wilmington are generally familiar with the F-1 OPT-to-H-1B transition pathway.
What is the prevailing wage for sponsored backend software developer jobs in Delaware?
U.S. employers sponsoring a visa must pay at least the prevailing wage, which is what workers in the same role, area, and experience level typically earn. The Department of Labor sets this rate to make sure companies aren't hiring foreign workers simply because they'd accept lower pay than a U.S. worker. It varies by job title, location, and experience. You can look up current prevailing wage rates for any occupation and location using the OFLC Wage Search page.