Ruhaib Mustafa

Software Engineer

Upwork • Vollzeit

Sep 2025 - Present • 8 mos

I am currently working at YourSpotRented as a Frontend Engineer and Automation Engineer, where I help build scalable web applications and automation systems that improve platform efficiency and user experience. As a Frontend Engineer, I develop modern, responsive, and high-performance user interfaces using React.js, JavaScript, HTML, and CSS. I work closely with product and backend teams to translate requirements into intuitive and user-friendly interfaces. My responsibilities include building dynamic UI components, optimizing application performance, ensuring cross-browser compatibility, and maintaining consistent design standards across the platform. I focus on creating smooth user experiences while keeping the codebase clean, maintainable, and scalable. In addition to frontend development, I also work as an Automation Engineer, where I design and implement automation solutions that streamline internal workflows and reduce repetitive manual tasks. I build automation scripts and systems that help with operational processes, data handling, and system integrations, allowing the team to save time and improve productivity. I frequently collaborate with different teams to identify areas where automation can improve efficiency and then develop reliable solutions that integrate seamlessly with existing systems. Working at YourSpotRented has strengthened my skills in frontend development, automation engineering, and building real-world production systems where performance, reliability, and user experience are critical. This experience has helped me develop a strong understanding of scalable product development and efficient engineering practices.

Senior Front-End Developer

Appstack.systems • Teilzeit

Jan 2025 - Present • 1 yr 4 mos

At AppStack Systems, I started my role as a Frontend Developer and later progressed to working as a Full Stack Developer, contributing to the development of a CRM platform designed to help businesses manage clients, deals, tasks, and operational workflows more efficiently. mail: ruhaib@appstack.systems As a Frontend Developer, my primary responsibility was to design and implement responsive, user-friendly interfaces using React.js, JavaScript, HTML, and CSS. I built dynamic UI components, dashboards, and data-driven interfaces that allowed users to easily manage large volumes of information. My focus was on creating intuitive user experiences, improving application performance, and ensuring the platform worked seamlessly across different devices and browsers. As the project evolved, I expanded my role into Full Stack Development, where I began working on both the frontend and backend of the CRM system. I contributed to developing core features such as client management, deal tracking, contract management, proposal handling, and task workflows. I worked with backend services, APIs, and database structures to ensure smooth data flow between the system components. My responsibilities included building reusable components, integrating APIs, improving application performance, and collaborating with the team to design scalable system architecture. I also worked on optimizing the overall user experience by refining workflows and simplifying complex features for end users. Working at AppStack Systems gave me hands-on experience in developing a full-scale business CRM product, strengthening my skills in frontend development, backend integration, and full-stack application architecture. It also enhanced my ability to work in collaborative development environments and deliver reliable, production-ready software solutions.