Benefits:

Competitive salary

Opportunity for advancement

Training & development

Role: Senior .NET Developer – Mainframe Modernization Location: Austin, TX - Remote

Why Join Us?

Remote work flexibility

Long-term contract with strong renewal potential

Collaborative Agile team environment

Chance to influence enterprise-level architecture and modernization strategy

About the Role We’re seeking a Senior .NET Developer with prior experience supporting the Railroad Commission of Texas (RRC), ideally in the LoneSTAR application. You’ll lead technical initiatives in a high-visibility mainframe modernization project—applying your deep expertise in .NET Core, C#, MS-SQL, JSON, and Azure technologies to build robust integrations and scalable APIs.

This position is ideal for developers with proven state agency experience who can independently navigate complex projects, collaborate across departments, and lead junior developers in delivering secure, high-quality software.

Key Responsibilities

Lead full SDLC efforts including architecture, coding, testing, deployment, and production support

Build modern APIs and microservices using .NET Core, C#, and Azure stack (App Services, Functions, Logic Apps)

Enhance and support the LoneSTAR application and associated RBDMS platforms

Develop secure, scalable, and testable code using CI/CD practices in Azure DevOps

Collaborate with cross-functional teams including PMs, BAs, architects, and DevOps

Troubleshoot and resolve complex technical issues and support after-hours deployments

Guide and mentor junior developers, conduct code reviews, and contribute to a culture of technical excellence

Required Skills & Qualifications

Bachelor's in Computer Science or related field

8+ years of .NET development experience with C#

8+ years in .NET Core and team-based environments

2+ years of hands-on experience with the RRC LoneSTAR application

Strong SQL Server experience, JSON, Swagger, and production support skills

Available for occasional night/weekend deployment support

Detail-oriented, self-driven, and comfortable leading initiatives

Preferred Skills

Experience with GoAnywhere secure file transfer

Azure DevOps, Visual Studio IDE, Telerik/Kendo UI

Familiarity with microservices, SOA, REST APIs

Unit test development and regression analysis

PDF generation (e.g., iText), multi-environment Azure deployment

This is a remote position.