Senior .Net Developer

Quantum Technologies. LLC; Houston (TX); On-site; USD 84,000 - 120,000; Full time

Job summary

Quantum Technologies. LLC in Houston, TX seeks a Senior .NET Developer to design and build scalable RESTful APIs, microservices, and secure web applications using C#, .NET Core, and ASP.NET Core MVC.

You will own API lifecycle, implement OAuth/OIDC, work in Agile teams with Azure DevOps and Jira, and collaborate with data and security teams to deliver high-performance solutions.

Qualifications

• Experience building RESTful APIs and microservices with C#/.NET
• Strong grasp of authentication/authorization (OAuth 2.0, OIDC, JWT)
• Solid SQL/data modeling and relational databases
• Agile/Scrum workflow with source control and CI/CD tooling

Responsibilities

• Own the end-to-end API lifecycle from design to deployment
• Implement secure authentication/authorization for APIs and apps
• Design and evolve microservices with robust error handling and logging
• Collaborate in Agile teams using Azure DevOps and Jira for delivery management

Skills

C#/.NET

ASP.NET Core Web API

ASP.NET MVC Core

Tools

Apigee

Azure DevOps

Jira

Job description

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

Job Title:Senior .Net Developer

Location: Houston, TX

Duration: 8 Months + Extension

Bill Rate: $74/hour (C2C)

Job Type: W-2, 1099, C2C

Client: To Be Discussed Later

Work Authorization: US Citizen, Green Card, OPT-EAD, CPT, H4-EAD, Other

Job Description:

1. Design and develop scalable, secure, and high-performance RESTful Web APIs and microservices using C#, .NET/.NET Core, ASP.NET Core Web API, and ASP.NET MVC Core, following a design-first/API-first approach and industry best practices.

2. Own the end-to-end API lifecycle, including API contract/design, development, integration, testing, deployment, versioning, and support, with hands-on experience using Apigee for API management, security, policies, and gateway integration.

3. Design and implement authentication and authorization for ASP.NET Core applications and REST APIs using OAuth 2.0, OpenID Connect (OIDC), JWT bearer tokens, claims-based authorization, RBAC, and enterprise identity providers such as Microsoft Entra ID

4. Demonstrate strong experience in microservices architecture, including service decomposition, reusable API design, error handling, logging, authentication/authorization, resiliency, and integration between distributed services.

5. Possess strong hands-on knowledge of relational databases and SQL, including data modeling, query development and optimization, and integration of database components with .NET-based APIs and applications.

6. Work effectively within Agile/Scrum teams, participating in design reviews, code reviews, sprint planning, and technical troubleshooting while using Azure DevOps and Jira for source control, CI/CD, work-item tracking, and delivery management.

Required Skills:

• C#/.NET, ASP.NET Core Web API, ASP.NET MVC Core,

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.