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Senior Dot Net Developer Jobs in Delaware (NOW HIRING)

Senior Software Engineer, Medical Device

Newark, DE · On-site

$119K - $157K/yr

We are seeking a Senior Software Engineer (C#/ .NET, Full Stack) to design, develop, troubleshoot, and debug software for new and existing products. The person in this role will work as part of a ...

... .NET, Angular, Python, and related technologies * Define reusable reference architectures ... Mentor senior engineers, foster communities of practice, and promote architectural thinking ...

Networks with senior internal and external personnel in own area of expertise. The incumbent may be ... C/C++/.net, LabVIEW/CVI, Visual Basic, and/or PLC Ladder Logic • Working knowledge of ...

Networks with senior internal and external personnel in own area of expertise. The incumbent may be ... as C/C++/.net, LabVIEW/CVI, Visual Basic, and/or PLC Ladder Logic Working knowledge of ...

Software Engineer II

Wilmington, DE · On-site

$94K - $129K/yr

The position interacts with senior management, other technology personnel, clients and vendors. The ... NET Core * ETL Frameworks and Data Architecture * Familiar with application development software ...

Software Engineer II

Wilmington, DE · On-site

$94K - $129K/yr

The position interacts with senior management, other technology personnel, clients and vendors. The ... NET Core * ETL Frameworks and Data Architecture * Familiar with application development software ...

SW Engineer III

Wilmington, DE · On-site

$55.75 - $75/hr

Requirement - SW Engineer III (WebForms, .Net MVC, C#, SQL Server, Angular) Location- Hybrid ... The position interacts with senior management, other technology personnel, clients and vendors. The ...

Software Engineer II

Wilmington, DE · On-site

$94K - $129K/yr

The position interacts with senior management, other technology personnel, clients and vendors. The ... NET Core * ETL Frameworks and Data Architecture * Familiar with application development software ...

Software Engineer II

Wilmington, DE

$94K - $129K/yr

The position interacts with senior management, other technology personnel, clients and vendors. The ... NET Core * ETL Frameworks and Data Architecture * Familiar with application development software ...

Showing results 21-35

Senior Dot Net Developer information

See Delaware salary details

$36

$60

$78

How much do senior dot net developer jobs pay per hour?

As of Aug 8, 2026, the average hourly pay for senior dot net developer in Delaware is $60.25, according to ZipRecruiter salary data. Most workers in this role earn between $52.93 and $67.36 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a senior dot net developer?

To thrive as a Senior Dot Net Developer, you need advanced proficiency in C#, .NET frameworks, object-oriented programming, and a bachelor's degree in computer science or a related field. Expertise with Visual Studio, SQL Server, Azure DevOps, and relevant certifications like Microsoft Certified: .NET Developer are highly valued. Strong problem-solving, leadership, and effective communication skills help drive complex projects and mentor junior team members. These competencies ensure robust, scalable software solutions and foster high-performing development teams.

What is the difference between Senior Dot Net Developer vs Software Engineer?

AspectSenior Dot Net DeveloperSoftware Engineer
Required CredentialsBachelor's in CS or related, .NET certificationsBachelor's in CS or related, various programming certifications
Work EnvironmentDeveloping .NET applications, coding, debuggingDesigning, coding, testing software across platforms
Employer & Industry UsageTech companies, finance, healthcare using .NETBroad industry use, including tech, finance, startups
Common Search & ComparisonYesYes

The main difference between a Senior Dot Net Developer and a Software Engineer lies in their focus areas. Senior Dot Net Developers specialize in building and maintaining applications using the .NET framework, often with specific certifications. Software Engineers have a broader scope, working across various programming languages and platforms. Both roles are vital in tech industries, but the Senior Dot Net Developer role is more specialized in Microsoft technologies.

How does a senior .NET developer typically collaborate with cross-functional teams during a project lifecycle?

As a Senior .NET Developer, you will frequently work alongside product managers, UI/UX designers, quality assurance testers, and other developers to deliver robust software solutions. Your role often involves clarifying technical requirements, providing input on architecture and feasibility, and ensuring seamless integration with other systems. Effective communication and proactive problem-solving are vital, as you'll help bridge the gap between technical and non-technical stakeholders. Regular code reviews and agile ceremonies like sprint planning and stand-ups are common in this collaborative environment.

What does a senior dot net developer do?

A Senior Dot Net Developer designs, develops, and maintains software applications using Microsoft's .NET framework. They work on complex projects, often leading development teams, architecting solutions, and ensuring code quality through best practices. Their responsibilities also include troubleshooting issues, optimizing application performance, and mentoring junior developers. They typically collaborate with other IT professionals and stakeholders to deliver scalable and efficient software solutions.
What are popular job titles related to Senior Dot Net Developer jobs in Delaware? For Senior Dot Net Developer jobs in Delaware, the most frequently searched job titles are:
What job categories do people searching Senior Dot Net Developer jobs in Delaware look for? The top searched job categories for Senior Dot Net Developer jobs in Delaware are:
What are popular job titles related to Senior Dot Net Developer jobs in DE? For Senior Dot Net Developer jobs in DE, the most frequently searched job titles are:
Infographic showing various Senior Dot Net Developer job openings in Delaware as of August 2026, with employment types broken down into 50% Full Time, and 50% Contract. Highlights an 100% In-person job distribution, with an average salary of $125,327 per year, or $60.3 per hour.

Senior Software Engineer

Corporation Service Company

Wilmington, DE • On-site

$118K - $156K/yr

Full-time

PTO

Re-posted 15 days ago


Corporation Service Company rating

8.3

Company rating: 8.3 out of 10

Based on 18 frontline employees who took The Breakroom Quiz

77th of 483 rated business services


Job description


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

#CSC #CSCCareers #LI-HL1
About Us
CSC is a global business, legal, and financial services company based in Wilmington, Delaware, USA, providing knowledge-based solutions to clients worldwide. We have offices and capabilities in over 140 jurisdictions in the Americas, Europe, Asia Pacific, and the Middle East, and more than 8,000 colleagues. We are the business behind business.®
Visit our careers site to learn more about CSC and our commitment to our clients, communities, and each other.
CSC is committed to creating a feeling of belonging through a diverse and growth-oriented environment where everyone is valued.
CSC colleagues have global career opportunities and excellent benefits, including annual success-sharing bonuses or commission plans based on individual performance. To learn more, visit cscglobal.com/service/careers.
We offer a range of support to colleagues with disabilities, ensuring people have the necessary resources to thrive in their roles. We encourage candidates to work closely with our talent acquisition partners to convey their specific needs. Our commitment to accessibility reflects our broader dedication to diversity and belonging,
CSC only accepts resumes from employment agencies that are part of our approved supplier program. Resumes submitted from other agencies either to talent acquisition, our hiring leaders, employees, or through any other mechanism other than our supplier process, will not be eligible to claim related fees and the submitted resumes will be considered property of CSC.
We encourage candidates to apply directly to our website and not through third-party sources.
Disclaimer: The information above describes the general nature and level of work performed by employees in this role. It is not intended to describe all duties, responsibilities, and qualifications.
About the Team
At CSC®, we're always looking ahead, finding ways to innovate, challenge the status quo, and anticipate the needs of our clients. We exceed expectations by adapting client ambitions and goals as our own. This Fierce Client Spirit has helped us adapt and create solutions that have enabled businesses to run smoother and smarter for more than 125 years. It's also the reason we're the trusted partner of many of the world's most successful organizations.
CSC is committed to attracting, developing, and retaining talented people whose values align with ours. We empower our colleagues to bring the right solutions to market to meet client demand. That's why we are the leading provider of business administration and compliance solutions.
  • CSC is a great place to work with smart and dedicated people.
  • We have won several employer recognition awards, including Top Workplace USA, Great Places to Work India, and Built In's Best Places to Work.
  • We offer fulfilling work and career opportunities. Most positions are filled with internal moves and employee referrals.
  • Employees are eligible for Success Sharing, bonuses, or commission plans based on role and individual performance.
  • CSC offers a competitive and comprehensive benefits package that includes annual leave, tuition reimbursement, referral bonuses, and more.
  • As business needs allow, CSC offers hybrid or remote work schedules in alignment with local regulations. Specific details for this position will be discussed during the interview process.

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