Hire the Best Electronic Designers
in Brazil

I'm a composer and producer specializing in game music. I create original soundtracks and sounds that enhance gameplay, atmosphere, and storytelling. My work spans a wide range of musical styles, including orchestral, electronic, ambient, and fantasy-inspired music. Whether you're looking for an emotional, atmospheric, energetic, or cinematic soundtrack, I can help bring your game's world to life with music tailored to its unique identity. **What I offer:** * Reliable collaboration with regular updates and close attention to your feedback and creative references. * Seamless loopable tracks designed for gameplay. * Adaptive music implementation in FMOD. * Music and sound tailored to your game's style and atmosphere. Let's discuss your project and create a soundtrack that gives your game its own unique voice!

Hi, I’m Saimon. I design systems and products that must work in the real world, under load, vibration, corrosion, pressure, heat, and continuous operation. Not just clean CAD models, but solutions that can be built, tested, and used in production. I’m new to Upwork, but I bring 20+ years of experience in R&D from industrial solutions and product design. 🔹 What I do • Mechanical design, from concept to CAD to production-ready • Product development and design improvement • Design for Manufacturing, DFM, and cost optimization • Structural, thermal, and vibration analysis, FEA • Engineering calculations and validation • Prototyping and real-world testing support • Electromechanical integration, mechanical + PCB + sensors Tools: SolidWorks | Fusion 360 | AutoCAD | Abaqus 🔹 What I deliver • Enclosures for electronics, 3D printed or injection-molded • Structural and sheet metal designs, fabrication-ready • Industrial machinery components and assemblies • Internal mechanisms, motion, guidance, interaction • Production-ready CAD + 2D drawings, GD&T and tolerances • DFM-optimized parts and assemblies • Thermal-aware designs, heat dissipation and airflow • Sealing systems, IP-rated and outdoor applications 🔹 Additional capability • Engineering data analysis using Excel and Python • Performance evaluation and system optimization • Basic predictive models for engineering applications • Design automation, CAD workflows and repetitive task reduction 🔹 How I approach projects I don’t start with CAD. I start with: • How the system will actually be used • Where it can fail • How loads and forces move through the design Then I build the solution around that. 🔹 Getting started Since I’m building my presence on Upwork, I’m open to starting with a small initial phase. This allows you to evaluate my work, speed, communication, and quality, before moving forward with a larger scope. 🔹 If you need to • Fix a design that isn’t working • Turn an idea into something manufacturable • Develop a prototype that performs in real conditions Let’s talk. ✉️ Send me a message, I’ll review your project and suggest the best way forward.

With 10 years of experience in developing hardware, firmware, and documentation for medical devices and Software as a Medical Device (SaMD), I have specialized in designing safe and compliant systems. I am well-versed in: • IEC 60601-1 (General Safety) • IEC 60601-1-2 & IEC TR 60601-4-2 (EMC) • IEC 62304 (Medical Software) • ISO 13485 (QMS) • ISO 14971 (Risk Analysis) • IEC 60601-2-57 (Non-laser light) • IEC 60601-2-18 (Endoscopes) • IEC 60601-2-83 (Heat lamps) • IEC 62471 (Non-laser light risk) • IEC 60825-1 (Laser safety) • Related FDA guidelines → Hardware Development • End-to-End PCB Design: From schematic capture and layout to prototyping and validation for rigid, flexible, and metal-core substrates. • Specialized Circuit Design: Expertise in analog front-ends for sensitive biometric data, efficient power converters, and robust sensor interface circuits. • Design for Manufacturing (DFM): Creating designs optimized for cost, reliability, and scalability in a production environment. • Supply Chain Coordination: Managing communication and prototyping with component suppliers and PCB manufacturers. → Firmware Development • Microcontroller Expertise: Proficient with a range of architectures, including Atmel/Microchip (Atmega, ATxmega, SAM), STM32, and ESP32. • Programming Languages: Primary development in C for embedded systems, with Python and MATLAB used for testing, automation, and data analysis. • Structured Development: Emphasis on modular code, comprehensive documentation, and verification testing to support regulatory audits. → Regulatory Pathway • Regulatory Strategy & Liaison: Acting as your technical interface with certification bodies and test labs. • Documentation Authoring: Hands-on creation of all necessary technical file documents, including: --- Product Requirements & Design Specifications --- System and Software Test Plans --- Risk Management Files (per ISO 14971) --- Software documentation (per IEC 62304 and FDA guidance) • Testing Management: Developing test plans and managing the compliance testing process with my network of ILAC-certified labs, ensuring significant cost savings compared to European or American labs.

I help companies design, debug, and optimize complex electronic hardware, particularly PCB systems involving high-speed interfaces, RF, signal integrity, power architecture, and difficult manufacturing or validation problems. My work ranges from focused PCB design reviews and troubleshooting to complete hardware development, including system architecture, component selection, schematic capture, multilayer PCB layout, simulation, prototype bring-up, validation, and manufacturing release. I have five years of industrial, freelance, and academic engineering experience, including two years in R&D at Furukawa Electric. My background spans hardware development, validation, QA, and test engineering, giving me practical experience with the problems that appear not only during PCB design, but also during fabrication, assembly, bring-up, environmental testing, and field operation. A recent project involved the electromagnetic simulation and optimization of a GMSL2 serializer-to-FAKRA PCB interconnect up to 6 GHz. I developed a reproducible KiCad-to-openEMS workflow and evaluated transmission-line geometry, connector launches, vias, anti-pads, reference-plane transitions, S-parameters, impedance, and return loss to identify practical improvements before hardware validation. My main areas of work include: — RF, high-speed, and controlled-impedance PCB design — Signal integrity and electromagnetic simulation — PCB design review and troubleshooting — RF interconnect and connector-launch optimization — Multilayer, BGA, and mixed-signal hardware — Power architecture and low-power electronics — Prototype bring-up, debugging, and validation — DFM, DFA, DFT, and manufacturing release I also develop embedded and IoT hardware involving STM32 and ESP32 platforms, cellular and wireless connectivity, industrial communication interfaces, sensors, battery-powered systems, and mixed-signal circuitry. My project experience includes GMSL2, LTE/NB-IoT, GNSS, LoRaWAN, CAN, RS-485, Ethernet, I²C, SPI, UART, BLE, Wi-Fi, industrial telemetry, RF gateways, sensor interfaces, analog audio electronics, and embedded control systems. Depending on the project, I can deliver: — System architecture and engineering recommendations — Schematics and multilayer PCB layouts — Stackup and controlled-impedance requirements — PCB design reviews and technical risk assessments — BOMs and component sourcing alternatives — Gerber, drill, pick-and-place, and manufacturing files — Electromagnetic simulation models — S-parameter and Touchstone files — Prototype bring-up and debugging support — Test procedures and validation plans — Engineering reports and manufacturing documentation My designs consider return-current paths, grounding, impedance discontinuities, EMI/EMC risks, power integrity, thermal behavior, component availability, assembly limitations, test access, and practical debugging from the beginning. The objective is not simply to produce a PCB that passes design-rule checks. It is to reduce board revisions, manufacturing problems, and unexpected behavior during validation. My main engineering tools include KiCad, Altium Designer, openEMS, Python, EasyEDA Pro, and ParaView. I maintain my own electronics laboratory with an oscilloscope, spectrum analyzer, bench equipment, soldering and rework tools for prototype assembly, bring-up, troubleshooting, and validation. I am based in Brazil and maintain strong working-hour overlap with clients in the United States and Europe. If you have a new hardware design, a PCB approaching fabrication, or an existing board that is not performing as expected, send me the schematics, PCB files, requirements, or current test results. I can review the design, identify the main technical risks, and recommend the most effective path forward.

Visual Designer & Art Director with over 15 years of experience crafting visual identities and campaigns across multiple industries. Specialized in social media designer, branding, packaging, and marketing design for sectors such as fashion, beauty, real estate, retail, wellness, and food. Creates strategic and aesthetic visual systems that strengthen brand positioning and connect with the audience. Expert in Adobe Creative Suite (Illustrator, Photoshop, InDesign), Figma, and AI tools like Midjourney and DALL·E, integrating artificial intelligence into the creative process to enhance efficiency and explore new visual possibilities. Works exclusively as a freelancer, collaborating with clients in a focused and agile way. Experienced in managing full creative workflows, from concept development to final delivery, always adapting the visual language to the goals, tone, and context of each brand. Recognized for a strategic mindset, attention to detail, and the ability to translate ideas into visually compelling and cohesive designs. Capable of leading projects independently or working closely with multidisciplinary teams to deliver high-quality results under tight deadlines. Committed to visual consistency, creative excellence, and building strong relationships that generate real value for every project.

🚀 Helping businesses build better products, websites, and brands. I'm a Top Rated Plus Web, UI/UX & Brand Designer from Brazil with 10+ years of experience. I've worked with startups, SaaS companies, agencies, and global brands, including YouTube Music, TikTok, Sennheiser, Absolut, Beefeater, and Pernod Ricard, creating websites, landing pages, Shopify stores, SaaS platforms, dashboards, and digital experiences that drive business growth. My expertise includes UI/UX Design, Web Design, SaaS Product Design, Landing Page Design, Shopify Design, Dashboard Design, Mobile App Design, Design Systems, Wireframing, Interactive Prototyping, Branding, and Figma. I create modern websites, SaaS platforms, dashboards, mobile apps, landing pages, and scalable design systems that combine great user experiences with clean visual design and developer-ready execution. Whether you're launching a new product, redesigning an existing platform, improving conversions, or refreshing your brand, I deliver strategic, user-focused designs built for real business goals. What I Can Help You With ✔️ UI/UX Design for SaaS Platforms & B2B Products ✔️ Website Design & Responsive Web Design ✔️ Landing Page Design & Conversion Optimization ✔️ Shopify Store Design & E-commerce Experiences ✔️ Dashboard Design, CRM & ERP Interfaces ✔️ Mobile App Design (iOS & Android) ✔️ Figma Design Systems & Component Libraries ✔️ Wireframes, User Flows & Interactive Prototypes ✔️ UX Audits & Product Redesign ✔️ Branding, Visual Identity & Logo Design ✔️ Marketing Design, Social Media Assets & Campaign Graphics ✔️ Investor Pitch Decks & Product Presentations My Design Process Every project follows a structured workflow focused on creating intuitive user experiences while making development faster and more efficient. • Product Discovery & Strategy • UX Research & User Flows • Wireframing & Interactive Prototyping • High-Fidelity UI Design • Responsive Web & Mobile Design • Figma Design Systems & Components • Developer-Ready Figma Files • Design QA & Developer Collaboration Industries I've Worked With • SaaS • AI & Automation • Healthcare • FinTech • Cybersecurity • B2B Software • E-commerce & Shopify • Education • Real Estate I've collaborated with founders, startups, agencies, marketing teams, developers, and in-house product teams on projects ranging from marketing websites and landing pages to SaaS products, dashboards, mobile applications, branding, and growth campaigns. Tools Figma • Framer • Adobe Creative Suite • Cursor • Claude • ChatGPT • Midjourney I also use AI-assisted workflows to accelerate ideation, wireframing, prototyping, documentation, and developer collaboration while maintaining high-quality design standards. Why Clients Hire Me ✔️ 10+ years of professional design experience ✔️ Top Rated Plus with 100% Job Success ✔️ Expertise across Web Design, UI/UX, SaaS, Shopify, Branding & Marketing Design ✔️ Developer-ready Figma files and scalable Design Systems ✔️ Modern, conversion-focused interfaces built around usability ✔️ Strong collaboration with founders, developers, and product teams ✔️ Fast communication, reliability, and attention to detail ✔️ Strategic thinking combined with polished visual execution If you're looking for a Web Designer, UI/UX Designer, SaaS Designer, Shopify Designer, Figma Designer, Landing Page Designer, Dashboard Designer, Product Designer, Brand Designer, or Graphic Designer who can transform ideas into polished digital experiences, I'd love to discuss your project.