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Software Engineer with 5+ years of experience designing, developing, and supporting business-critical software solutions using C#, .NET, SQL Server, and modern web technologies. Experienced across the full SDLC—from requirements gathering and solution design to development, testing, deployment, and production support—focused on reliability, maintainability, and performance.…

RUAN KNOETZE

Software Engineer, Full Stack Developer, Web Developer

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Software Engineer with 5+ years of experience designing, developing, and supporting business-critical software solutions using C#, .NET, SQL Server, and modern web technologies. Experienced across the full SDLC—from requirements gathering and solution design to development, testing, deployment, and production support—focused on reliability, maintainability, and performance.…

Available to hire

Software Engineer with 5+ years of experience designing, developing, and supporting business-critical software solutions using C#, .NET, SQL Server, and modern web technologies. Experienced across the full SDLC—from requirements gathering and solution design to development, testing, deployment, and production support—focused on reliability, maintainability, and performance.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Beginner

Work Experience

Senior Software Engineer (Full Stack) at EMPERIO GROUP

March 1, 2023 - Present

Continuing enterprise full-stack software development and support, including API development, integrations, workflow automation, production support, and modernization/refactoring efforts to improve stability, reliability, and long-term maintainability.

Software Engineer (Full Stack) at FRAXION

September 1, 2022 - March 1, 2023

Worked on the company’s primary procurement and fintech platform, maintaining and improving business-critical enterprise software. Diagnosed and resolved production issues affecting customers, improved performance and system reliability, and refactored legacy code to enhance maintainability and simplify future development. Restored deprecated functionality while preserving compatibility with existing architecture, assisted with deployments, collaborated on enhancements and bug fixes under tight deadlines, and participated in troubleshooting and root-cause analysis for production incidents.

Senior Software Engineer (Full Stack) at EMPERIO GROUP

September 1, 2020 - August 31, 2022

Designed, developed, and maintained enterprise-grade applications across multiple industries, working with clients, stakeholders, and development teams through the full SDLC. Built modular, scalable architectures using C# and .NET Framework/.NET Core with JavaScript/HTML5/CSS3 and Microsoft SQL Server. Implemented RESTful APIs for secure third-party and mobile/web integrations, designed relational schemas, stored procedures, and optimized SQL for performance and data integrity. Delivered procurement and supplier management systems, implemented RBAC authentication and secure access controls, and integrated external services (e.g., payment gateways and email platforms). Developed workflow automation using REST APIs and Zapier, engineered high-volume email/notification systems, and built an event management platform including registrations, dynamic forms, surveys, scheduling, landing pages, QR validation, and operational reporting. Refactored legacy systems for quality and maintainability