Senior Application Deveoloper

Senior Application Developer (Full-Stack .NET Core AWS)

Onsite in Plano, TX

Contract with CDW – 6 months

W2 only, no Corp to Corp.

CDW is in a hiring sprint and moving full speed to scale our technology team! If you're a hands-on Senior Application Developer with a strong background in cloud-based, full-stack development using Microsoft technologies and AWS, we want to hear from you.

As a Senior Application Developer, you will build and support enterprise-grade applications for our Mortgage Servicing platform. Your work will directly impact the future of our cloud-based solutions by creating scalable, reliable, and maintainable code. This is your chance to be a part of a team that values innovation, ownership, and speed.

Key Responsibilities:

Design, develop, and deploy high-quality applications using modern Microsoft and cloud technologies (.NET, .NET Core 6/8, C#, AWS)

Utilize front-end skills (JavaScript, HTML, CSS) and frameworks for dynamic, responsive user interfaces

Implement microservices and cloud-native services using AWS (EC2, Lambda, SQS, SNS, Containers, API Gateway)

Write clean, scalable code, perform unit testing, and support user acceptance testing (UAT)

Collaborate in Agile teams to deliver business functionality iteratively and incrementally

Manage small to mid-sized projects independently and contribute to larger project teams

Provide post-deployment support and troubleshoot live production issues

Create and maintain application documentation and technical specifications

Use AI-based coding assistants (e.g., GitHub Copilot) to enhance development speed and accuracy

Required Qualifications:

Bachelor’s degree in Computer Science or related field, or equivalent experience

7+ years of full-stack application development experience

Proficiency in .NET Core (v8 preferred, v6 acceptable), C#, SQL, and web services

Solid experience with relational databases (SQL Server, MySQL, PostgreSQL)

Strong knowledge of design patterns, refactoring practices, and test-driven development

Demonstrated experience with front-end technologies: HTML, CSS, JavaScript, and modern libraries

Experience with Agile methodologies (Scrum, XP) and working in iterative delivery cycles

Familiarity with Linux and open-source software tools is a plus

Financial services or mortgage industry experience highly desirable

Hands-on experience with AI coding tools (e.g., GitHub Copilot, CodeWhisperer)

Preferred Experience:

AWS cloud environment: EC2, SQS, SNS, Lambda, Containers, API Gateway

Experience with SSIS and enterprise-level integrations

Functional programming concepts

Deep understanding of scalable architectures and CI/CD pipelines

CDW offers a robust suite of benefits to our W2 Contract Staff. These include Health, Vision, Dental, 401K and Sick Pay. Reach out today for a immediate conversation.