Hire the Best ProTools Specialists
in Brazil

Power Electronics Engineer with 15 years of experience designing high-efficiency, production-ready power systems. Specialized in SMPS, DC-DC converters, BMS, and embedded control for demanding applications. I design robust hardware from concept to production, transforming complex electrical requirements into reliable and manufacturable solutions. My work focuses on performance, efficiency, thermal stability, EMI control, and long-term reliability. Core expertise includes: ⚡ SMPS design (flyback, push-pull, half-bridge, full-bridge, synchronous topologies) ⚡ DC-DC converter development (buck, boost, buck-boost, SEPIC, isolated and non-isolated) ⚡ Battery management systems (Li-ion, LiFePO4) ⚡ LED and motor drivers ⚡ High-current PCB layout with EMI mitigation ⚡ Thermal analysis and heatsink sizing ⚡ Power load driving ⚡ Closed-loop control and digital regulation ⚡ Miniaturized converters I develop schematics and production-ready PCB layouts with complete manufacturing documentation (Gerber files, BOM, assembly files). 3D PCB models are available for mechanical integration. Beyond circuit design, I prioritize engineering decisions that impact manufacturability, cost optimization, scalability, and long-term product reliability. From initial architecture definition to manufacturing support, I deliver high-performance, reliable, and market-ready power hardware solutions. --keywords-- Power Electronics Engineer, Power Supply Design, DC DC Converter Design, SMPS Design, Switching Power Supply, AC DC Power Supply, Buck Converter Design, Boost Converter Design, Isolated DC DC Converter, High Power DC Converter, Gate Driver Design, MOSFET Driver Circuit, IGBT Driver Design, BMS Design, Battery Management System, Li-ion BMS, LiFePO4 BMS, Battery Charger Design, High Current PCB Design, Power PCB Layout, EMI Mitigation, Power Stage Design, Magnetics Design

⭐⭐⭐⭐⭐ "Jimmy is a pleasure to work with! He is diligent, an excellent communicator, and a very talented audio artist. He brought excellence and beauty to our project, and we were very grateful to have his help." Does your project need a sonic identity that breathes life into the world, not just a folder of .WAV files? I am a Technical Sound Designer and Composer dedicated to building immersive, dynamic audio systems for games. I don’t just create assets; I bridge the gap between creative storytelling and technical implementation, ensuring your audio engine is just as polished as your gameplay. What I bring to your project: ⚙️ Technical Implementation: I specialize in middleware integration (FMOD) and direct engine implementation (Unreal Engine 5, Unity). I build systems that react to player behavior, not just static loops. 🔊 Immersive Sound Design: I craft environments that players feel, not just hear. Whether it's complex atmospheric horror or high-speed combat, I design for immersion. 🎵 Narrative-Driven Composition: Music should reinforce the gameplay loop. I compose scores that evolve alongside the player, heightening intensity during action and providing emotional weight to story moments. My Toolkit: 🛠️ Game Engines: Unity (C#) and Unreal Engine 5 (Metasounds) 🎚️ Middleware: FMOD 🎹 Audio Suite: Reaper (Primary), Logic Pro X, Cubase, FL Studio, LUNA Why work with me? I pride myself on clear communication and a "pipeline-first" mindset. I understand that game development is a collaborative, iterative process, and I am here to integrate seamlessly into your existing workflow. Ready to elevate your project's audio? Click the green "Invite" or "Hire" button at the top right to discuss your project. Let’s build something incredible together! 🚀

Top Rated freelancer specializing in Customer Support Leadership, Customer Experience, AI Voice Training, Voice Over, Narration, Dubbing, Translation, Localization, Transcription, Audio & Video Editing, Sound Engineering, and Digital Content Production. With 10+ years of professional experience, I combine customer support expertise, language skills, professional audio knowledge, and AI-related experience to help companies improve processes, communicate with customers effectively, and deliver high-quality results. My customer support background includes Support Lead experience, handling customer escalations, improving workflows, creating SOPs, optimizing support processes, and working with platforms such as Zendesk, Intercom, Freshdesk, and Gorgias. I have experience with billing support, refunds, disputes, payment-related requests, customer communication, and creating response workflows to improve efficiency and consistency. I also have extensive experience in translation, transcription, and localization, providing accurate and natural content in English, Portuguese, and Spanish. I focus on maintaining meaning, cultural relevance, and a natural tone for each target audience. In addition, I have a professional background in sound engineering and audio production, with experience in voice-over, dubbing, narration, AI voice training, podcast production, audio editing, mixing, and mastering. I work with professional recording equipment to deliver clear, consistent, production-ready audio for media and AI-related projects. My unique combination of customer experience, technology, language, and audio skills allows me to support a wide range of projects requiring communication, attention to detail, creativity, and reliability. Available for both short-term projects and long-term collaborations.

I design and ship SaaS products, iOS apps, AI apps, dashboards, and onboarding flows. I work from UX strategy and Figma prototypes to functional frontend using Lovable.dev, Claude Code, Cursor, SwiftUI, Supabase, and Stripe. I’m a Senior UX/UI Product Designer with 9 years of product design experience and 5 years working with AI workflows. My edge is the design-to-build layer: I design the product in Figma, prototype the flow, create scalable UI systems, and help ship the frontend using tools like Lovable.dev, Claude Code, Cursor, SwiftUI, Supabase, and Stripe. Most clients come to me when they need more than polished screens. They need someone who can understand the product, simplify the user experience, move fast, and close the gap between design and implementation. Best-fit projects: * SaaS MVP design and redesign * iOS app UX/UI and SwiftUI-ready product design * AI apps, chat interfaces, agent workflows, and AI SaaS dashboards * B2B web apps, admin panels, onboarding flows, and analytics dashboards * Figma prototypes, design systems, user flows, and developer handoff * Founder-led product builds where speed, taste, and execution all matter Relevant work: * Mobile app redesign with full UX overhaul; product now has 4.8 stars and 90K+ reviews * Complete SaaS product: UX/UI design, Figma prototype, and functional frontend from one freelancer instead of a design/dev handoff chain * Product design work for companies including BeatStars, Safara, LootRush, 12min, and Rock Content — including venture-backed products associated with Sequoia, YC, and a16z You should hire me if you need someone who can think like a product designer, move like a builder, and communicate clearly throughout the process. I work fast, but I do not ship decorative UI. Every screen needs to support the product, the user, and the business. Core tools: Figma, Lovable.dev, Claude Code, Cursor, SwiftUI, Supabase, Stripe, Webflow, Framer, React/Next.js handoff, design systems, prototyping, user flows, and AI-assisted product workflows.

Senior Product Designer & Growth Partner for Early-Stage Startups Stop wasting runway on slow design-to-development cycles. I am a Senior Product Designer (8+ years) who specializes in helping B2B/SaaS founders validate, design, and ship production-ready products 5X faster using a blend of strategic UX/UI and advanced Vibe Coding techniques (Cursor, Lovable, Figma Make). Proof: Currently a Senior Designer at Nubank (a leading global fintech, managing systems that impact millions), with prior experience at Dell Technologies and Mercado Livre. My designs balance business impact with user delight and are built to scale from day one. 📈 Your Product Accelerator: Speed, Clarity, and Measurable Outcomes My focus is on eliminating friction—both in the user experience and in your development pipeline. I specialize in designing intuitive, data-informed SaaS interfaces, complex dashboards, and high-conversion landing pages. - Simplicity for Scale: Transforming complex system logic into clear, actionable, and beautiful user experiences. - Systemic Consistency: Implementing Design Systems/Style Guides that prevent technical debt and ensure your product remains cohesive as you hire and grow. - Business Alignment: Every design decision is tied directly to your key metrics (e.g., Activation Rate, Retention, LTV). 💡 Vibe Coding & Rapid Prototyping: Ship Faster Than Your Competitors I don't just hand off static mockups. I'm fluent in Vibe Coding, which means I deliver experiences that are almost immediately ready for deployment. - Framer Websites: Turning product vision into responsive, SEO-ready marketing sites without involving a front-end engineer for the initial build. - AI-Enhanced Workflow (Cursor/Lovable/Figma Make): Utilizing AI and low-code tools to create sophisticated, interactive prototypes and components that act as a bridge, accelerating the gap between high-fidelity design and the final commit by your developers. The result? Faster validation, less back-and-forth, and more efficient use of your precious seed funding. Ready to turn your complex problem into an elegant, high-performing product? Let's schedule a quick call to discuss your biggest product bottleneck and how my 8+ years of global, high-growth experience can inject clarity and momentum into your next milestone.

My name is Houari Cobas Gomez, I finished my PhD on Microelectronics in 2016 (São Paulo University, Brazil), my Master on Electronic in 2007 (Higher Polytechnic Institute José Antonio Echeverría, Cuba), graduated on Automation Engineering in 2002 (Higher Polytechnic Institute José Antonio Echeverría, Cuba). I have a strong experience in Electric Engineering Area with emphasis in electronic circuit design and simulation, electronic system design for physic variables measurement, electronic instrumentation and labview programming. Mains projects which I had done: Ceramic microfluidics systems for chemical process miniaturization applied to nanoparticles generation. Automatized electrochemical measurement meso-system for microbiologic sample analysis. Electromagnetic microfluidic valve design Thick film electrochemical sensor fabrication by Screen Printing technology Pumping workstation controlled by computer by mean of Labview for microfluidics structures characterization. Labview virtual instrumentation system based, design, adjust and evaluation for biologic microorganism samples electrochemical analysis. Labview based instrumentation system design and implementation, for temperature and relative humidity (psychometric method) measurement. Labview based instrumentation system for amperometric sensors characterization. Design, adjust and evaluation