RF Engineers Para Contratação
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Mostrando 6 resultados
Freelancers Patrocinados
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Engenharia Arquitetônica, Renderização Arquitetônica, Visualização Arquitetônica, AutoCAD, Engenharia de EdifíciosI am a professional Structural and MEP Engineer with extensive experience in building design, analysis, and cost estimation for residential and commercial projects. My background includes steel, concrete, wood, and mechanical/electrical systems design in full compliance with US building codes. Services include: -...I am a professional Structural and MEP Engineer with extensive experience in building design, analysis, and cost estimation for residential and commercial projects. My background includes steel, concrete, wood, and mechanical/electrical systems design in full compliance with US building codes. Services include: - Structural and MEP design and coordination - Load calculations, HVAC, electrical, and plumbing layout - Cost estimation, quantity take-off, and material budgeting - Preparation of drawings for permit and construction I focus on delivering accurate, code-compliant, and efficient solutions that meet client goals on time and within budget. Let’s discuss your project needs — I’ll ensure you receive high-quality, professional results. menos
Contratar johnb584
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oleksandrt68 oleksandrt68
$45 Dólares / hora
Electronics | Embedded Systems | IoT | RF&AntennaUkraine🔧 Electrical & Electronics Engineer | Embedded Systems | Power & Control | IoT | PLC | RF & Antenna I help companies/individuals design, develop, and deploy robust electrical and embedded solutions—from PCB design and firmware development to power systems, IoT integration, and compliance-ready documentation. With 8+...🔧 Electrical & Electronics Engineer | Embedded Systems | Power & Control | IoT | PLC | RF & Antenna I help companies/individuals design, develop, and deploy robust electrical and embedded solutions—from PCB design and firmware development to power systems, IoT integration, and compliance-ready documentation. With 8+ years of experience in electronics engineering and embedded systems, I bring deep technical expertise and a hands-on approach to every project. ✅ Core Services PCB Design & Circuit Development Schematic capture, multi-layer PCB layout, signal integrity, and manufacturing-ready Gerber files. Tools: Altium, KiCad, Eagle, EasyEDA. Embedded Systems & Firmware Custom firmware for STM32, ESP32, Arduino, and ARM Cortex-based boards. RTOS, interrupt handling, I2C/SPI/UART/ADC, BLE & Wi-Fi protocols. Power Electronics & Battery Management DC-DC converters, BMS (Battery Management Systems), inverter designs, and charger integration for Li-ion, LFP, and solar-powered systems. IoT & Wireless Solutions Sensor-based systems with real-time wireless data transmission via LoRa, BLE, Wi-Fi, and GSM. Cloud integrations with MQTT, Firebase, and REST APIs. RF circuit design for BLE, LoRa, Wi-Fi, GSM, ISM band devices Custom antennas (patch, dipole, monopole, fractal) Matching networks, impedance tuning, VNA testing, EMI/EMC compliance Automation & Control Systems Custom control panels, PLC alternatives, smart switching circuits, motor drivers, and analog/digital feedback control loops. Simulation & Analysis Circuit simulation (LTspice, PSpice), power analysis, EMI/EMC considerations, and thermal management. 🧰 Tech Toolbox Design Tools: Altium Designer, KiCad, Eagle, OrCAD, EasyEDA Simulation & Modeling: LTspice, PSpice, MATLAB/Simulink Microcontrollers: STM32, ESP32, AVR, TI MSP430, Arduino Communication Protocols: BLE, Wi-Fi, LoRa, MQTT, Modbus, RS232, I2C, SPI, UART, UDP Programming Languages: C, C++, Embedded C, MicroPython Testing & Measurement: Oscilloscope, Logic Analyzer, Multimeter, Signal Generator Standards & Compliance: DFM, EMI/EMC Best Practices, ISO/IEC Specifications I will be happy to help translate your ideas into reality. menos
Contratar oleksandrt68
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Hello, I am Joaquin, a Professional Electronics and Electrical Engineer with strong hands-on experience in PCB design, embedded systems, IoT, and firmware development. I am specialized in RF & antenna design, wireless communication systems, and power electronics, including DC-DC converters and power management...Hello, I am Joaquin, a Professional Electronics and Electrical Engineer with strong hands-on experience in PCB design, embedded systems, IoT, and firmware development. I am specialized in RF & antenna design, wireless communication systems, and power electronics, including DC-DC converters and power management circuits. I also have experience in mechanical design and CAD modeling, including enclosures, thermal management, and integration of electronic systems into mechanical structures. I have a proven ability to take products from concept and schematic through PCB layout, firmware integration, prototyping, testing, mechanical integration, and production support. I am experienced in working with multidisciplinary teams and delivering reliable, manufacturable designs for commercial and industrial applications. menos
Contratar joaquinc48
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Dear Everyone My name is William Purcell, and I am a Toronto-based AI & Machine Learning Engineer, Electronic Engineer, and Full Stack Software Developer with several years of hands-on experience delivering reliable, scalable, and production-ready solutions for clients across diverse industries. I specialize in...Dear Everyone My name is William Purcell, and I am a Toronto-based AI & Machine Learning Engineer, Electronic Engineer, and Full Stack Software Developer with several years of hands-on experience delivering reliable, scalable, and production-ready solutions for clients across diverse industries. I specialize in building intelligent systems that combine data, software, and hardware where required. On the AI and Machine Learning side, I have strong experience designing, training, optimizing, and deploying models for prediction, classification, automation, computer vision, and natural language processing. I am highly proficient in Python and commonly work with frameworks such as TensorFlow, PyTorch, and Scikit-learn. I place a strong emphasis on data quality, model performance, explainability, and real-world usability rather than purely experimental results. As a Full Stack Web Developer, I have delivered complete web applications from concept to deployment. My experience includes frontend development using React and modern JavaScript frameworks, backend development with Node.js, Django, and Flask, and database design using both SQL and NoSQL technologies such as PostgreSQL, MySQL, and MongoDB. I have built RESTful APIs, integrated third-party services, implemented secure authentication systems, and deployed scalable applications to cloud platforms. My background in Electronic Engineering allows me to approach problems from a systems-level perspective. I have worked with embedded systems, microcontrollers, circuit design, and hardware–software integration. This unique combination of AI, software, and electronics enables me to contribute effectively to IoT projects, intelligent devices, automation systems, and data-driven hardware solutions. I am comfortable collaborating with multidisciplinary teams and translating complex technical requirements into practical, working systems. I am confident that my technical expertise, strong work ethic, and commitment to quality would make me a valuable asset to your project. I would welcome the opportunity to discuss your requirements in detail and explain how my skills can help you achieve your goals efficiently and successfully. Thank you for considering my application. I look forward to working with you. Sincerely, William Purcell AI & ML Engineer | Electronic Engineer | Full Stack Web Developer Toronto, Canada menos
Contratar williamp138
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RomanSattar RomanSattar
$15 Dólares / hora
Top 1%, Cyber Security, OSINT, Linux, Python, CEHPakistanSegurança de computadores, Segurança de Internet, Segurança na rede, Segurança, Rede de AdministraçãoHi, I’m Top 1% freelancer committed to keeping your digital world safe, secure, and unstoppable. With years of hands-on experience as a Cyber Security Analyst and SOC Analyst, you get tailored solutions that transform vulnerabilities into strengths and risks into confidence. From penetration testing and vulnerability...Hi, I’m Top 1% freelancer committed to keeping your digital world safe, secure, and unstoppable. With years of hands-on experience as a Cyber Security Analyst and SOC Analyst, you get tailored solutions that transform vulnerabilities into strengths and risks into confidence. From penetration testing and vulnerability assessments to threat intelligence, malware analysis, and incident response, I deliver cyber solutions that help businesses thrive without disruption. I don’t just apply generic fixes I design tailored security strategies that protect critical data and future-proof systems against evolving threats. With a background in ethical hacking, digital forensics, and compliance (ISO 27001, NIST, CIS, HIPAA), I cover the full spectrum of cyber defense. Whether it’s risk assessments, SOC monitoring, or advanced defense deployments, my approach is proactive, precise, and focused on long-term resilience. Why Choose Me? ✅ Elite Expertise: Cyber Security, SOC Analysis, Ethical Hacking, Linux Hardening & Forensics ✅ Battle-Tested Skills: Proven results in penetration testing, incident response, malware analysis, and SOC operations ✅ Cutting-Edge Tools: Kali Linux, Nessus, Metasploit, Burp Suite, Wireshark, Shodan, Maltego, EnCase, FTK, SIEM (Splunk, QRadar, Wazuh) ✅ 24/7 Availability: Cyber threats don’t sleep — and neither do I when it comes to real-time response ✅ Proven Results: Secured clients in finance, healthcare (HIPAA compliance), government, e-commerce, and enterprise sectors 🔧 My Specialized Services 🛡 Penetration Testing & Vulnerability Assessments (OWASP Top 10, ISO 27001, HIPAA, CASA Tier 2) 🕵️ Threat Intelligence & Dark Web Recon (Shodan, Maltego, TOR-based cyber investigations) 🔬 Incident Response & Forensic Support (FTK, EnCase – breach investigation, malware analysis) 📊 Risk Assessment & Threat Modelling (STRIDE, DREAD, MITRE ATT&CK, OWASP Threat Dragon) 🔒 SOC Monitoring & Network Security (SIEM, Firewalls, IDS/IPS, Endpoint Security, Compliance) ⚡ Advanced Security Testing & Problem Solving: - SIEM Tools: Wazuh, QRadar, Splunk - Testing: Black Box, Gray Box, White Box - Cloud & Compliance: NIST, CIS, HIPAA - Application Security: DAST, SAST, OWASP Top 10 - Vulnerability Scanners: Acunetix, Invicti, OWASP ZAP, Nessus, MSF (Metasploit) - Manual Testing & Tailored Problem Solving 🏆 What You Get Working With Me ⚡ Lightning-fast 24-hour response time ⏱️ 💬 Clear & transparent communication – no jargon, just results 🛡 Custom cyber defense strategies that go beyond compliance and deliver real-world protection 🔥 Whether you face complex challenges, tight deadlines, or ambitious goals, your success will be secured every step of the way. 👉 Together, we’ll turn complexity into simplicity and goals into results. menos
Contratar RomanSattar
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Need to turn your idea into a working AI product quickly? I help startups and companies go from concept to MVP - fast - and then scale into full, revenue-generating systems. Whether it’s a web-based AI app or an embedded AI device, I build intelligent systems that learn, adapt, and perform. 🌟 What I Build ✅ AI...Need to turn your idea into a working AI product quickly? I help startups and companies go from concept to MVP - fast - and then scale into full, revenue-generating systems. Whether it’s a web-based AI app or an embedded AI device, I build intelligent systems that learn, adapt, and perform. 🌟 What I Build ✅ AI Software ✔ AI Web/Mobile App Development, full SaaS development(fast MVP, scale to real-product) ✔ AI Sales & Marketing Agents - automate customer engagement and follow-up ✔ AI Customer Service Bots - 24/7 chat, voice, and email automation ✔ Voice AI Assistants - for calls, appointments, and orders ✔ CRM & Funnel Integrations - HubSpot, GoHighLevel, Salesforce, Zoho ✔ Custom ML Models - trained for prediction, NLP, and automation tasks ✅ Embedded AI & Electronics ✔ Edge AI Systems – ML models running directly on devices (ESP32, Jetson, Raspberry Pi) ✔ IoT Device Prototypes – connected sensors, controllers, and data pipelines ✔ Embedded Vision & Audio AI – on-device image and voice recognition ✔ Hardware + Cloud Integration – send real-time sensor data to AI dashboards ✔ Rapid Hardware MVPs – prototype boards, firmware, and control apps 🌟 Tech & AI Stack ✔ AI/ML: OpenAI GPT, Claude, Llama, Hugging Face, PyTorch, TensorFlow, scikit-learn ✔ Automation: LangChain, Make.com, Zapier, n8n ✔ Embedded: Arduino, ESP-IDF, Raspberry Pi, Jetson, MicroPython, Edge TPU ✔ Cloud: AWS, GCP, Azure – scalable & secure deployment ✔ DevOps: Docker, Kubernetes, GitHub Actions for CI/CD ✔ Languages: Python, TypeScript, C/C++, Node.js, C# 🌟 Why Work With Me ✔ I build complete systems - from AI logic to working hardware ✔ Fast prototyping for startups - MVPs that can grow into real products ✔ End-to-end delivery - hardware, software, and cloud working together ✔ Startup speed with enterprise-level reliability Let’s turn your idea into a smart AI-powered product - from chip to cloud. Build fast. Launch faster. Scale confidently. menos
Contratar DngPhgNam
