Freelancers pentru angajare
Se afișează 26 rezultate
Freelanceri sponsorizați
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I am currently seeking long-term remote and onsite job opportunities. With 13 years of experience, I have worked extensively with VoIP, Asterisk, cloud technologies such as AWS and OpenStack, Server security, Vtiger CRM, Open VPN, CentOS, Ubuntu, Redhat, VoIPSwitch, Oracle DB, RHEVM, Mysql, and Linux customization. I...I am currently seeking long-term remote and onsite job opportunities. With 13 years of experience, I have worked extensively with VoIP, Asterisk, cloud technologies such as AWS and OpenStack, Server security, Vtiger CRM, Open VPN, CentOS, Ubuntu, Redhat, VoIPSwitch, Oracle DB, RHEVM, Mysql, and Linux customization. I am also proficient in Python and PHP scriptwriting for IVR and AGI implementation on Asterisk. I have a team for support and further development. My expertise includes: - Linux - Hosting Systems Administration & Monitoring - Design and implementation of High-Performance SIP SBC - DevOps CI/CD - Service Optimization - Security Hardening - VoIP, Asterisk, SMS, Dongle, and FreePBX installation, configuration, and maintenance - WebRTC SIP Phone - Infrastructure Planning - Disaster Recovery - Shell Scripting - Capacity planning, application delivery planning - Network Troubleshoot, Spanning Tree, PVST, RSTP, HSRP, RIP, BGP, EGRP IGRP, MPLS - SAN Troubleshoot - GlusterFS, CEPH - NFS, SMB, ISCSI, SMTP - Linux performance tuning - MySQL, Oracle DB performance tuning - Laravel web application development - Web Security, Web benchmark, best practice - IPTV, Live streaming, VOD, FFmpeg - Raspberry Pi Please let me know if you have any questions or require further information. mai puțin
Angajează pe abusayed2004
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DearSir, My background is related with: -Digital Motor Control -Analog Design -Electronic Design -PowerElectronics -Renewable energy -PCB design -Embedded system -Matlab -Simulation of hardware For each concept descriptions are as follows: Digital Motor Control: -3-phase induction motor vector control drive -Flux...DearSir, My background is related with: -Digital Motor Control -Analog Design -Electronic Design -PowerElectronics -Renewable energy -PCB design -Embedded system -Matlab -Simulation of hardware For each concept descriptions are as follows: Digital Motor Control: -3-phase induction motor vector control drive -Flux estimation algoritm generation -DSP(TMS320) implementation on motor drive -Low speed application -Torque and speed loop generation -Control algoritms -BLDC motor -Step motor -DC motor Analog design -Low power distribution -Noissless special opamp based analog circuits -Analog filters -Orcad simulation of several circuits Electronic Design -RF transmitter and receiver -Bluetooh reade rand transmitter -Magneticreader PowerElectronics -Implementation motor drive -AC/DC converter -DC-DC converter -Battery charger -Solar inverter -Renewable Energy -Uninterruptle power supplies PCB design -Schematic design by Altium -PCB design by Altium -Power board design -SMPS board design -Easyeda -CAD files of manufacturers Embedded system -ESP32,ESP8266,modules -Bluetooth and Wifi -PIC18,PIC24,PIC30 and dsPIC applications -Ardino -MSP430 -Atmel -DSP(Texas Instruments) -Renesas -STM32 -C2000 Matlab -Power Electronics simulation -Motor drive -WindEnergy -Solar Energy -Control applications Simulation of Hardware -Orcad Simulation (TI,National, LinearTech, Maximlibraries) -LTI -National -Matlab -Easyeda mai puțin
Angajează pe macroenergy
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Veteran, expert system developer in multiple domains including web apps, iOS and Android, embedded microprocessor systems, High-Performance Computing with NVidia GPUs (CUDA), graphics, database, and telcommunication systems. Large scale projects from concept to development to marketing no problem. Longtime U.S....Veteran, expert system developer in multiple domains including web apps, iOS and Android, embedded microprocessor systems, High-Performance Computing with NVidia GPUs (CUDA), graphics, database, and telcommunication systems. Large scale projects from concept to development to marketing no problem. Longtime U.S. expat in Japan, so bi-lingual in English & Japanese. I am fairly new to Freelancer (but not at development), so I only have a few Freelancer "references" and "credits" so far. Personal references and examples of various projects, both small and large, will gladly be provided upon request. mai puțin
Angajează pe bestwmm
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I am a software developer and have 7 years of experience in the field of web development and the IOT domain. 3 Years Experience working in MNC. I take pride in developing projects that are like small satellites: they stay far away from me, but they still work perfectly as expected. I am meticulous in my planning and...I am a software developer and have 7 years of experience in the field of web development and the IOT domain. 3 Years Experience working in MNC. I take pride in developing projects that are like small satellites: they stay far away from me, but they still work perfectly as expected. I am meticulous in my planning and execution, and I always test my work thoroughly before releasing it. IOT - MQTT - Raspberry PI - ESP32/esp8266/Arduino - AWS IOT Core AUTOMATION - Node Red - Customized Farm Automation - Customized Industrial Automation WEB - PHP - Python - Laravel - CodeIgniter - Html - JavaScript,Mysql,etc. Other - IOT architecture designing - Web development mai puțin
Angajează pe sayonesolutions
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Redactare raport, Article Writing, Redactare conţinut, Redactare pentru documentație de cercetare, CopywritingWelcome!! You have landed at a place where your quality of content, deadline, and satisfaction matters the most because I don’t leave a single loophole while handling your given task. Forget about your worries of shortage of time, approaching deadlines, or having little knowledge of doing your academic tasks and...Welcome!! You have landed at a place where your quality of content, deadline, and satisfaction matters the most because I don’t leave a single loophole while handling your given task. Forget about your worries of shortage of time, approaching deadlines, or having little knowledge of doing your academic tasks and assignments. I will be your go-to writer who will provide top-notch quality delivered within your given deadline. I am helping people since 2015 to stay away from any trouble of missing deadlines or getting lower grades. I have dedicated myself to providing a professional support system, where you don’t feel down anymore, but rather feel happy and satisfied by getting good grades and percentages in your coursework. Have a look at my services and ping me what you are looking for: (1) - Discussion Posts (2) - Reply Posts (3) - Annotated Bibliography (4) - Research Thesis (5) - Research Papers (6) - Proposal and Summaries (7) - Case Studies (8) - Research Essays & Article (9) - Journal Articles (10) - Book Summary and Analysis (12) - Online Quiz & Exams (13) - PowerPoint Presentations (14) - Report Writing Why Me? (1) - Well- Referenced (APA, MLA Harvard, Chicago, or IEEE) (2) - On-time Delivery (3) - Urgent Support if needed (4) - Plagiarism-Free Work Hire me and feel that "Your Work is Done". To discuss your projects please message me. Thank You! mai puțin
Angajează pe SolutionMart
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Having worked in an online store for 3 years. I have experience in managing the main tasks related to customer service and writing product sheets : — Informing customers about the status of their orders. — Order processing on DSers and AliExpress, — I have already managed more than 20 Shopify stores: Promo code...Having worked in an online store for 3 years. I have experience in managing the main tasks related to customer service and writing product sheets : — Informing customers about the status of their orders. — Order processing on DSers and AliExpress, — I have already managed more than 20 Shopify stores: Promo code creation customer management (email) Order creation Product import via DSers. I also know how to use the tools needed to get the job done: Freshdesk, Zendesk, Gorgias, Facebook, Instagram, Gmail, Outlook. I also know how to manage disputes on PayPal. Do not hesitate to contact me, because I am ready to take up any challenge. mai puțin
Angajează pe Miarijaona2020
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For the past 20 years, I have been engaged in the design and production of electronic devices, including wireless devices. During this period, I started with antenna design, designing and producing FMCW radar in each frequency band (including millimeter waves), and continued until the signal processing unit...For the past 20 years, I have been engaged in the design and production of electronic devices, including wireless devices. During this period, I started with antenna design, designing and producing FMCW radar in each frequency band (including millimeter waves), and continued until the signal processing unit section. In addition, a wireless direction finding system with high measurement accuracy was developed based on phase interference correlation processing method, and a coordinate measurement system combining TDOA and GPSDO was developed. The operating frequency bands of these two systems are between 20 MHz and 6 GHz. In addition, he also developed a radar frequency band signal analysis and directional analysis system based on IFM and BM methods. The frequency range of this system is 2 to 18 GHz. Moreover, while developing wireless navigation devices that can perform GPS RTK and Heading, a precision inertial navigation system has also been completed. This heading is based on a GPS system and is not affected by surrounding algae. Moreover, with the advancement of high-speed PCB design for RF systems, high-speed signal processing circuits above 1GHz and various Android, Linux devices, etc. have been widely introduced into a field. The programs used in these processes include: - RF simulation and design program: CST Studio, ADS - PCB design program: Altium Designer. - Mechanical design program: Solidworks. - Signal processing programs: ISE, Quartus, Keil, MPLAB X, Arduino. Matlab, And developed intelligent lock with facial recognition and fingerprint recognition functions, and has sufficient experience in mass production, establishing a monthly production process of more than 10000. In this process, a procurement process for various elements, including RF elements, and a production and testing process for components have been established. Regardless of the type of product or the quantity, there is rich experience in overseas direct delivery. And, I can process various sourcing and delivery of various electronic components. mai puțin
Angajează pe Dennis0215
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Analog / Mixed Signal / Digital, Antenna Design, Analiză privind factura pentru materia primă (BOM), Optimizare privind factura pentru materia primă (BOM), Circuit Board LayoutHello, everyone. As a professional engineer who can put your ideas into practice with perfect and sophisticated skills and experience, I am pleased to have a great business relationship with you here. What Can I Do: 1. Electronics Design - Circuit & PCB Design: Analog and digital circuit and PCB design using...Hello, everyone. As a professional engineer who can put your ideas into practice with perfect and sophisticated skills and experience, I am pleased to have a great business relationship with you here. What Can I Do: 1. Electronics Design - Circuit & PCB Design: Analog and digital circuit and PCB design using various electronic design tools including Altium Designer, KiCad, Eagle, and EasyEDA - MCU control board design: Functional board design and firmware design centered on MCU - Sensor board design: Object status information detection circuit and board design using temperature, humidity, pressure, and proximity sensors - Power supply design: Design and manufacture of various DC and AC converters and stable PSU - Simulation: Electronic simulation analysis to verify design feasibility 2. RF & Antenna Design - RF design: RF circuit design and PCB design, including high-frequency amplifiers and filters - Communication device design: Design of a wireless communication device that can realize BLE, WiFi, and ZigBee functions - Antenna design: Design of various types of antennas in different frequency bands, such as mono-pole antennas, patch antennas, Yagi-Uda antennas, PCB antennas, and horn antennas. - Electromagnetic simulation: Integration of simulation and design using software including ADS, CST, and HFSS 3. Others - Code design including Arduino and C++ - Mechanical, electrical and plumbing design - Enclosure design of electronic devices As an innovative engineer, I enjoy working in a creative field of expertise and consider it my noble mission to contribute to human civilization and development by exploring ideal solutions in challenging environments. A thorough understanding of the customer's needs, combined with an unwavering sense of responsibility and commitment, will always be the driving force behind the completion of a project. I will always make your project great with my research skills and correct methodology. “Develop great ability and climb to the top of success with accurate skills.” With this ideology in mind, I have been running tirelessly through life, sharing joys and sorrows with my colleagues, and will continue to do so in the future. Therefore, the knowledge and wealth of experience I have accumulated here will be the most precious thing and will become a pleasant memory on the hill of success. If you are interested in my skills and experience and need my help, please feel free to contact me. I will always be open to client's requests. Thank you for visiting my profile. mai puțin
Angajează pe pr0skilled
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Analog Electronics, Inteligență Artificială, Redactare domeniul afacerilor, Comunicații, Digital ElectronicsI am an Electrical||Electronics Engineer and I have experience in circuit designing for more than 2 years. I have done many electrical projects for the university works, local clients and I am curious to do new challenging Projects. I will do your project and its circuit diagram, attach a stimulation video, and...I am an Electrical||Electronics Engineer and I have experience in circuit designing for more than 2 years. I have done many electrical projects for the university works, local clients and I am curious to do new challenging Projects. I will do your project and its circuit diagram, attach a stimulation video, and explain documentation to make a clear and easy understanding of the project. I will work with you to debug any issues until it works. Expertise: 1- Circuit Analysis and Design 2- Control System Analysis, Stability and Design 3- Applied Electronics (Analog and Digital) 4- Electrical Machines (Drives and Control) 5- Power Generation, Transmission and Distribution 6- Power System Analysis 7- Power Electronics Soft Skills: MATLAB/Simulink logisim NI Multisim Labview mai puțin
Angajează pe lakhofaizan0261
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Circuit Component Electronic troubleshooting Component Mountain Autcad 3D, Telecom, Electrical Meahincal workCircuit Component Electronic troubleshooting Component Mountain Autcad 3D, Telecom, Electrical Meahincal work mai puțin
Angajează pe sheikhpak4
