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Hi, I'm Alexis Thomas, a Software Engineer with over 7 years of experience specializing in .NET technologies. I have a passion for writing clean, efficient code and building scalable, production-ready systems. I enjoy diving into legacy system modernization and designing APIs that not only excel technically but also add real value to the business. Throughout my career, I've worked across various sectors including payments, embedded solutions, and enterprise applications. I'm also proficient in troubleshooting and debugging complex issues quickly. When I'm not coding, you can find me contributing to open-source projects or exploring new technologies to stay ahead in this fast-moving field.…Hi, I'm Alexis Thomas, a Software Engineer with over 7 years of experience specializing in .NET technologies. I have a passion for writing clean, efficient code and building scalable, production-ready systems. I enjoy diving into legacy system modernization and designing APIs that not only excel technically but also add real value to the business. Throughout my career, I've worked across various sectors including payments, embedded solutions, and enterprise applications. I'm also proficient in troubleshooting and debugging complex issues quickly. When I'm not coding, you can find me contributing to open-source projects or exploring new technologies to stay ahead in this fast-moving field.

Alexis Thomas

Developer, Programmer, Back-End Developer, +2

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Hi, I'm Alexis Thomas, a Software Engineer with over 7 years of experience specializing in .NET technologies. I have a passion for writing clean, efficient code and building scalable, production-ready systems. I enjoy diving into legacy system modernization and designing APIs that not only excel technically but also add real value to the business. Throughout my career, I've worked across various sectors including payments, embedded solutions, and enterprise applications. I'm also proficient in troubleshooting and debugging complex issues quickly. When I'm not coding, you can find me contributing to open-source projects or exploring new technologies to stay ahead in this fast-moving field.…Hi, I'm Alexis Thomas, a Software Engineer with over 7 years of experience specializing in .NET technologies. I have a passion for writing clean, efficient code and building scalable, production-ready systems. I enjoy diving into legacy system modernization and designing APIs that not only excel technically but also add real value to the business. Throughout my career, I've worked across various sectors including payments, embedded solutions, and enterprise applications. I'm also proficient in troubleshooting and debugging complex issues quickly. When I'm not coding, you can find me contributing to open-source projects or exploring new technologies to stay ahead in this fast-moving field.

Available to hire

Hi, I’m Alexis Thomas, a Software Engineer with over 7 years of experience specializing in .NET technologies. I have a passion for writing clean, efficient code and building scalable, production-ready systems. I enjoy diving into legacy system modernization and designing APIs that not only excel technically but also add real value to the business.

Throughout my career, I’ve worked across various sectors including payments, embedded solutions, and enterprise applications. I’m also proficient in troubleshooting and debugging complex issues quickly. When I’m not coding, you can find me contributing to open-source projects or exploring new technologies to stay ahead in this fast-moving field.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

German

Advanced

Work Experience

Software Engineer at Rapid Data GmbH

January 1, 2025 - Present

Developed and maintained backend microservices to support enterprise software products. Upgraded legacy systems to .NET 8, achieving a 45% reduction in API response times, enhancing security compliance, and reducing technical debt by 30%. Modernized the company’s fax system, ensuring continued reliability and streamlined integration. Delivered rapid internationalization features, enabling product expansion into multiple markets. Improved database queries and optimized server load, enhancing overall system efficiency. Enhanced the UI for Angular Frontend, improving user experience and responsiveness by 35%.

Software Engineer at CountR GmbH

January 31, 2025 - July 29, 2025

Developed and maintained RESTful services for kiosk machine backends and secure payment terminals. Optimized database queries and server configurations, reducing system load and improving response times by 30%. Upgraded currency counting hardware to Glory GFS 220, increasing counting accuracy and processing speed. Integrated real-time transaction analytics for better monitoring and operational decisions. Ensured high availability and compliance with payment industry regulations.

Software Engineer at Poolarserver

June 30, 2023 - July 29, 2025

Managed and maintained WebDAV server systems to ensure stability and performance. Developed and enhanced JavaScript-based user interfaces to improve usability and functionality. Collaborated with stakeholders to implement features aligned with client requirements.

Software Engineer (Working Student) at WS Audiology

April 30, 2020 - July 29, 2025

Developed and maintained RESTful and GraphQL services to support application backends. Built and optimized .NET Core REST services, enhancing scalability and maintainability. Worked on embedded systems using Raspberry Pi, focusing on IoT and hardware integration. Collaborated with cross-functional teams to integrate software with industrial and medical devices.

Software Engineer at Paysys

July 31, 2018 - July 29, 2025

Designed and developed a secure, efficient payment gateway system from scratch. Created a police traffic application with real-time data processing to improve enforcement workflows. Built servers and developed websites end-to-end, ensuring robust full-stack integration. Implemented RESTful services for seamless communication between payment systems and external applications.

Software Engineer at Rapid Data GmbH

January 1, 2025 - Present

Developed and maintained backend microservices to support enterprise software products. Upgraded legacy systems to .NET 8, achieving a 45% reduction in API response times, enhancing security compliance, and reducing technical debt by 30%. Modernized the company’s fax system for reliability and integration. Delivered internationalization features for product expansion. Improved database queries and server load, boosting system efficiency. Enhanced Angular frontend UI, improving user experience and responsiveness by 35%.

Software Engineer at CountR GmbH

January 31, 2025 - July 29, 2025

Developed and maintained RESTful services for kiosk machine backends and secure payment terminals. Optimized database queries and server configurations, reducing system load and improving response times by 30%. Upgraded currency counting hardware to Glory GFS 220, increasing counting accuracy and processing speed. Integrated real-time transaction analytics for improved monitoring and decision making. Ensured high availability and compliance with payment industry regulations.

Software Engineer at Poolarserver

June 30, 2023 - July 29, 2025

Software Engineer (Working Student) at WS Audiology

April 30, 2020 - July 29, 2025

Developed and maintained RESTful and GraphQL services supporting application backends. Built and optimized .NET Core REST services to enhance scalability and maintainability. Worked with embedded systems using Raspberry Pi, focusing on IoT and hardware integration. Collaborated with cross-functional teams to integrate software with industrial and medical devices.

Software Engineer at Paysys

July 31, 2018 - July 29, 2025