Full Stack Software Developer Contract Jobs in Arlington, TX

3Core Systems, Inc is an SAP and Success Factors Partner with employees located across the United States. Our organization is dedicated to customer and employee satisfaction. We provide High Quality, Cost efficient and Competitive Solutions and Resources.

3Core Systems is looking for a Full Stack Software Engineer for one of our clients in Dallas, TX (Hybrid: 3 Days a week onsite)

"US and those authorized to work in the US are encouraged to apply. We are unable to sponsor visas at this time"

Role: Full Stack Software Engineer Location: Dallas, TX Hybrid 3 days onsite / 2 days remote Employment Type: Contract 12 months (ability to extend)

Position Overview

Full Stack Software Engineer with approximately 5+ years of experience designing, developing, testing, and maintaining modern web applications and backend services.

This position will have a strong focus on C#/.NET Core backend development, microservices architecture, event-driven integrations using Apache Kafka, AWS cloud environments, and React frontend development.

The ideal candidate will be a hands-on full stack developer who can build RESTful APIs and microservices in .NET, develop Kafka-based integrations using .NET and Python, contribute to React-based user interfaces, and support application deployment through modern DevOps and CI/CD pipelines within AWS.

Key Responsibilities

• Design, develop, test, and maintain full-stack applications using C#, .NET Core, ASP.NET Core, React, JavaScript, and TypeScript.
• Build and maintain RESTful APIs and microservices-based applications using .NET Core.
• Design and support service-to-service communication within distributed application environments.
• Develop event-driven integrations using Apache Kafka, including producers and consumers built with .NET and Python.
• Troubleshoot Kafka messaging, event processing, and application integration issues.
• Develop responsive web applications and reusable UI components using React, JavaScript, TypeScript, HTML5, and CSS3.
• Integrate React applications with backend REST APIs and resolve frontend/UI defects.
• Work with SQL and NoSQL databases, including SQL Server, PostgreSQL, MySQL, and DynamoDB.
• Deploy and support applications within AWS serverless and containerized environments.
• Work with AWS technologies including Lambda, ECS, EC2, S3, API Gateway, and CloudWatch.
• Build, integrate, and maintain CI/CD pipelines used to automate application builds, testing, and deployments.
• Work with tools such as GitHub Actions, Azure DevOps, AWS CodePipeline, Git, and Docker.
• Participate throughout the full software development lifecycle, including design, development, testing, deployment, troubleshooting, and production support.
• Collaborate with senior engineers, QA teams, business analysts, product owners, and UX professionals.
• Participate in Agile/Scrum ceremonies including sprint planning, daily stand-ups, code reviews, testing, and retrospectives.
• Troubleshoot application performance, integration, messaging, and deployment issues and contribute to improvements in system reliability and maintainability.

Required Qualifications

• 5+ years of professional full stack software development experience.
• Strong hands-on development experience with C# and .NET Core / ASP.NET Core.
• Experience designing and developing REST APIs and microservices architectures.
• Experience with object-oriented programming, dependency injection, Entity Framework, and common software design patterns.
• Hands-on experience with Apache Kafka and event-driven architecture.
• Experience developing or supporting Kafka producers and consumers using .NET and/or Python.
• Experience developing frontend applications using React, JavaScript, and TypeScript.
• Experience integrating frontend applications with REST APIs.
• Experience developing and deploying applications within AWS cloud environments.
• Understanding of serverless and container-based application architectures.
• Experience with Docker and CI/CD pipelines.
• Experience with relational and/or NoSQL databases.
• Strong understanding of the software development lifecycle and modern application development practices.
• Experience working within Agile/Scrum development teams.

Technical Environment

Languages:
C#, .NET Core, ASP.NET Core, Python, JavaScript, TypeScript

Frontend:
React, HTML5, CSS3, REST API Integration

Backend:
.NET Core, ASP.NET Core, RESTful APIs, Microservices, Entity Framework, JSON

Messaging & Integration:
Apache Kafka, Event-Driven Architecture, Kafka Producers/Consumers

Cloud:
AWS Lambda, ECS, EC2, S3, API Gateway, CloudWatch

DevOps:
Git, Docker, CI/CD Pipelines, GitHub Actions, Azure DevOps, AWS CodePipeline

Databases:
SQL Server, PostgreSQL, MySQL, DynamoDB

Methodologies:
Agile/Scrum, SDLC, Unit Testing, Code Reviews, Git Version Control

Regards,

Recruiting Team

3Core Systems Inc

9101 Burnet Road, Suite 207, Austin, TX 78758