Senior .NET Full-Stack Engineer: Internal Platform Dev

Sourceability; Dallas (TX); Hybrid; USD 120,000 - 180,000; Full time

Benefits offered by this job

Competitive salary

Ongoing training and professional dev.

Collaborative global work environment

PTO

Job summary

Sourceability in Austin, TX is seeking a Senior Full Stack .NET Engineer to design, build, and maintain internal software platforms across backend, frontend, APIs, and data storage. This hands-on role collaborates with product, QA, DevOps, and stakeholders to deliver reliable software changes.

You'll work with .NET/C#, Angular, SQL Server, REST APIs, and cloud environments, while mentoring junior engineers and contributing to code reviews, testing, and production support.

Qualifications

• 5+ years of professional software development experience with strong hands-on experience in .NET / C# and ASP.NET Core or similar Microsoft-based backend technologies.
• Strong frontend development experience using Angular; experience with other modern JavaScript / TypeScript frameworks (e.g., React, Vue.js) is a plus.
• Strong understanding of HTML, CSS, JavaScript / TypeScript, browser behavior, API integration, and frontend application structure.
• Experience designing, building, and maintaining RESTful APIs and integrations with internal and external systems.
• Strong experience with relational databases, especially SQL Server; PostgreSQL, MySQL, or other relational databases are also helpful.
• Solid understanding of software design patterns, SOLID principles, object-oriented programming, testability, maintainability, and secure coding practices.
• Experience working with existing enterprise applications, production systems, legacy code, or complex business workflows.
• Experience using Git-based workflows, CI/CD pipelines, and standard software development lifecycle practices.
• Practical experience with Azure DevOps, Jira, or similar systems for work tracking, backlog execution, code collaboration, and delivery visibility.
• Ability to troubleshoot complex application issues across frontend, backend, APIs, databases, integrations, and environments.
• Ability to work independently in a distributed team while communicating clearly about progress, blockers, risks, and tradeoffs.
• Strong ownership mindset and willingness to support production systems, not only write new code.

Responsibilities

• Design, develop, test, and maintain full-stack applications using .NET / C# on the backend and modern web technologies on the frontend.
• Build and maintain APIs, services, integrations, user interfaces, background jobs, and data-driven application features.
• Work with SQL Server-backed systems, including data access, query performance, stored procedures where applicable, and production data behavior.
• Translate engineering-ready backlog items and acceptance criteria into practical, maintainable technical solutions.
• Partner with Product / Delivery Managers to clarify requirements, edge cases, user workflows, and release expectations.
• Partner with Product Group Team Leads / Architects on technical design, implementation approach, estimates, dependencies, and risks.
• Write clean, maintainable, testable, and well-documented code that follows GEO engineering standards.
• Participate in code reviews and provide practical feedback to improve quality, maintainability, security, and performance.
• Write and maintain automated tests where practical, including unit, integration, API, and UI tests depending on the system.
• Support QA and Product / Delivery teams during defect triage, regression testing, UAT support, release readiness, and post-release validation.

Skills

.NET/C# backend

Angular frontend

RESTful APIs

SQL Server

CI/CD / Git workflows

Azure DevOps / Jira

Debugging & production support

Tools

Docker

Kubernetes

Azure DevOps

Git

Job description

Sourceability in Austin, TX is seeking a Senior Full Stack .NET Engineer to design, build, and maintain internal software platforms across backend, frontend, APIs, and data storage. This hands-on role collaborates with product, QA, DevOps, and stakeholders to deliver reliable software changes.

You'll work with .NET/C#, Angular, SQL Server, REST APIs, and cloud environments, while mentoring junior engineers and contributing to code reviews, testing, and production support.