Full Stack Software Developer at 512Financial San Antonio, TX

512Financial; San Antonio (TX); On-site; USD 100,000 - 150,000; Full time

Job summary

512Financial in San Antonio, TX, seeks a skilled Full Stack Software Developer to build and maintain web and desktop applications using ASP.NET, MVC and WPF. You will design efficient SQL queries, collaborate with stakeholders, and contribute to all phases of the software lifecycle in a dynamic mortgage technology environment.

The ideal candidate has 5+ years of full stack experience, strong C#, SQL, and front-end skills, plus familiarity with ORM tools and RESTful APIs.

Qualifications

• 5+ years of experience in full stack development.
• Expert-level skills in C#, ASP.NET, MVC, and WPF.
• Strong command of SQL, including database design and performance tuning.
• Understanding of OOP and software design principles.
• Familiarity with front-end technologies: HTML, CSS, JavaScript.
• Proficiency with version control tools like Git or Azure DevOps.
• Excellent communication skills and the ability to thrive in a collaborative team environment.
• Experience with Entity Framework or other ORM tools preferred.
• Familiarity with RESTful API development a plus.
• Exposure to Agile/Scrum methodologies a plus.
• Background in or familiarity with mortgage technology platforms preferred.

Responsibilities

• Design, develop, and maintain both web-based and desktop applications using ASP.NET, MVC, WPF, and C#.
• Build efficient, reliable SQL queries and stored procedures; maintain and optimize relational database structures.
• Partner with stakeholders across the business to translate complex requirements into effective technical solutions.
• Contribute to all phases of the software development lifecycle, from planning and design to testing and deployment.
• Debug and troubleshoot application issues across the full stack.
• Participate in code reviews, provide technical guidance, and help define software architecture.
• Maintain documentation and follow coding best practices.

Skills

C#

ASP.NET

MVC

WPF

SQL

OOP

HTML/CSS/JS

Git/Azure DevOps

Communication

Tools

Entity Framework

RESTful APIs

Azure DevOps

Job description

Full Stack Software Developer job at 512Financial. San Antonio, TX. Are you a highly skilled Full Stack Software Developer who thrives on solving complex problems and delivering impactful solutions? Join our Information Technology team where your code will support business-critical applications used across the organization. From desktop solutions to modern web applications, you’ll shape the technology that drives operational success. We’re looking for a developer with strong experience across the Microsoft stack: ASP.NET, MVC, WPF, C#, and SQL, and a passion for crafting clean, efficient, and scalable software. If you bring creativity, collaboration, and a commitment to quality, we want to hear from you.

What You’ll Do:

• Design, develop, and maintain both web-based and desktop applications using ASP.NET, MVC, WPF, and C#
• Build efficient, reliable SQL queries and stored procedures; maintain and optimize relational database structures
• Partner with stakeholders across the business to translate complex requirements into effective technical solutions
• Contribute to all phases of the software development lifecycle, from planning and design to testing and deployment
• Debug and troubleshoot application issues across the full stack
• Participate in code reviews, provide technical guidance, and help define software architecture
• Maintain documentation and follow coding best practices

What You’ll Bring:

• 5+ years of experience in full stack development
• Expert-level skills in C#, ASP.NET, MVC, and WPF
• Strong command of SQL, including database design and performance tuning
• Understanding of OOP and software design principles
• Familiarity with front-end technologies: HTML, CSS, JavaScript
• Proficiency with version control tools like Git or Azure DevOps
• Excellent communication skills and the ability to thrive in a collaborative team environment
• Experience with Entity Framework or other ORM tools preferred
• Familiarity with RESTful API development a plus
• Exposure to Agile/Scrum methodologies a plus
• :with ICE Mortgage Technology platforms preferred
• Background in or familiarity with the mortgage law industry a plus

Location & Employment Statement:

Please Note: This is an in-office position based in San Antonio, TX. Applicants for employment in the United States must have work authorization that does not now or in the future require sponsorship.

Why Join Us?

You’ll join a high-impact team where your work matters, from internal operations to customer-facing tools. You’ll enjoy a supportive culture that values innovation, encourages learning, and offers growth opportunities in a fast-paced and stable environment.