Advanced Fullstack .Net Software Engineer

WHAT WE DO

Founded in 2007, Growth Acceleration Partners (GAP) is a consulting and technology services company. We consult, design, build and modernize revenue-generating software and data engineering solutions for clients. With modernization services and AI tools, we help businesses achieve a competitive advantage through technology. GAP’s remote, integrated engineering teams use end-to-end solutions to innovate and align with your business goals. We have 600+ English-speaking engineers based in Latin America and approximately 20 U.S.-based engineers. With some of the highest customer satisfaction scores in the industry, GAP’s focus is customer and employee success.

GAP is a woman-owned company headquartered in Austin Texas. We are a values-based company focused on growing our people by investing in education, onsite English classes and training in the latest technologies, including AI, data analytics and machine learning. Our goal is to provide solutions for our customers that help them achieve critical business outcomes, while enabling our GAPSters and our communities to attain long-term success.

Summary

We are looking for a Advanced Fullstack .Net Software Engineer to drive the development, maintenance, and modernization of enterprise-level web applications. In this high-impact role, with hands-on technical execution. You will play a crucial part in modernizing legacy systems, optimizing application performance, and ensuring robust security across the stack. Operating within an Agile environment, you will collaborate with cross-functional teams to translate complex requirements into scalable, secure, and modern technical solutions.

Education

• Bachelor’s Degree in Computer Science, Software Engineering, Information Technology, or a related technical field.

Professional Experience

• 3+ years of recent fullstack development experience, with a strong focus on the .NET ecosystem

• Proven track record of acting as a Player/Coach: leading, mentoring, and guiding a development team while remaining deeply hands-on with coding and architecture

• Strong background working in an Agile/Scrum environment with sprints, ceremonies, and iterative delivery

• Demonstrated experience modernizing legacy applications, specifically migrating older .NET architectures to modern frameworks such as Blazor

Key Responsibilities

• Maintain, troubleshoot, and enhance enterprise-level ASP.NET web applications

• Develop, implement, and test new fullstack features, functionalities, and modules

• Optimize application performance, ensure robust security measures, and troubleshoot complex problems across the front end, API layer, and database

• Oversee daily product stand-ups, report on progress, and actively clear blocking issues for the team

• Participate in code reviews to ensure strict conformance to internal standards, specifications, and best practices

• Collaborate closely with cross-functional teams to gather requirements and deliver clear, scalable solutions

Required Technical Skills

Strong experience across the following areas:

• Backend Core: ASP.NET, .NET Core, C#

• Frontend & UI: HTML5, CSS, JavaScript, TypeScript, AJAX, jQuery, and UI frameworks including Blazor Components, Telerik, Kendo UI, and Bootstrap

• APIs & Integrations: REST APIs, WSDL/SOAP services, and proficiency with API testing/validation tools (Postman, Swagger/Swashbuckle, Fiddler, SoapUI)

• Database: Advanced SQL Server expertise (building/optimizing stored procedures, views, indexing strategies) and troubleshooting using SQL Server Profiler and Execution Plans

• Tools & DevOps: Visual Studio (2022 or higher), and source control systems including Git and TFS

Nice to Have

• Comfortable leveraging AI-assisted development tools (e.g., Claude, GitHub Copilot, ChatGPT) to accelerate development, documentation, and problem-solving

• Deep knowledge of advanced UI/UX optimization techniques for data-heavy enterprise applications

Soft Skills

• Advanced English proficiency

• Strong leadership and mentoring capabilities with a collaborative "Player/Coach" mindset

• Excellent analytical and problem-solving skills

• Clear communication skills with the ability to articulate complex technical concepts to cross-functional stakeholders

At Growth Acceleration Partners, we're an equal opportunity employer committed to building a diverse and inclusive team. We value everyone's unique background, and we provide equal opportunities regardless of race, color, creed, religion, sexual orientation, gender identity, age, national origin, disability, marital status, veteran status or any other personal right protected by law. We foster a culture of belonging and strive to provide a welcoming environment where everyone feels safe to contribute and grow.