Senior Fullstack .NET/React 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 Senior Fullstack Software Engineer with strong expertise in .NET (C#) and React to join our engineering team. In this role, you will be responsible for building scalable, robust, and high-quality web applications, contributing across the entire development lifecycle—from backend services to modern frontend interfaces.

As a senior engineer, you bring deep hands-on experience, technical leadership, and a problem-solving mindset. You will help guide architectural decisions, mentor peers, and work closely with cross-functional teams to deliver performant, secure, and user-centered software solutions.

Education

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

Professional Experience

• 5+ years of experience designing and building software applications.
• 3+ years of experience working with .NET technologies in backend development.
• 2+ years of experience building frontend applications with React or similar frameworks.

Soft Skills

• Advanced English proficiency (spoken and written).
• Strong communication and interpersonal skills.
• Proactive, adaptable, and open to learning new technologies.
• Skilled in time management, technical mentoring, and negotiation.
• Strong capacity for providing technical support and cross-team collaboration.

Required Technical Skills

• Proficiency in .NET, C#, and Entity Framework for backend development.
• Experience building frontend interfaces using React, JavaScript, TypeScript, HTML, and CSS.
• Familiarity with version control systems (e.g., Git, GitHub, GitLab).
• Solid understanding of Agile methodologies (Scrum, Kanban).
• Strong knowledge of SQL and relational database design.
• Skilled in designing and consuming APIs (REST, gRPC, GraphQL).
• Proficient in unit testing and writing maintainable, testable code.
• Experience with containers (Docker, Kubernetes) and modern DevOps workflows.
• Experience with CI/CD tools (e.g., GitHub Actions, Jenkins).
• Hands-on experience with cloud platforms such as Azure, AWS, or GCP.

Nice to Have Skills

• Understanding of security best practices (e.g., OWASP, OAuth).
• Experience with performance optimization techniques (e.g., caching, load balancing).
• Familiarity with legacy system support and maintenance workflows.
• Experience working on system migrations or platform transitions.

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.