Cesar Alfonzo C.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

• Expert CAD Designer I’m a seasoned expert in using AutoCAD to create detailed 2D and 3D designs, specializing in the telecom fiber industry. I design accurate and efficient drawings for fiber optic networks, ensuring clarity and precision in all aspects of the layout. My expertise in AutoCAD helps streamline the design process, allowing for effective planning and implementation of telecom infrastructure. With a focus on industry-specific needs, I deliver high-quality designs that meet technical requirements and support successful project outcomes. • Expert Product Lister I’m a skilled expert in listing products using Linnworks, specializing in managing and optimizing product listings across eBay, Amazon, and your own website. I streamline the process of adding and updating product information, ensuring that all listings are accurate and consistent across platforms. With extensive experience in using Linnworks, I efficiently handle inventory synchronization and automate listing updates, which helps keep your product data up-to-date and error-free. My expertise ensures that your products are effectively showcased on multiple sales channels, driving sales and improving visibility for your business. • CANVA Graphics Designer I’m an expert in using Canva to create eye-catching and effective designs. I specialize in crafting high-quality visuals, including marketing materials, social media graphics, and presentations. My proficiency with Canva allows me to design professional and engaging content quickly, tailored to meet your specific needs and enhance your brand’s presence. • Certified Electronics Engineer I am a highly skilled Electronics Engineer with a passion for innovation and a solid foundation in designing and developing electronic systems. With 8 years of experience in the field, I have contributed to a wide range of projects, from circuit design and PCB layout to embedded systems and firmware development. My expertise extends to troubleshooting and solving complex electronic problems. Key Skills: - Proficient in circuit design and analysis using tools such as Altium, OrCAD, and Eagle. - Strong knowledge of analog and digital electronics, microcontrollers, and sensors. - Experience in firmware development and programming languages like C and C++. - Skilled in PCB design, layout, and fabrication. - Excellent problem-solving skills and the ability to diagnose and repair electronic systems.