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  • US$45 hourly

    • 5.0/5
    • (120 jobs)
    Hi, my name is Dmytro. I have over a decade of experience designing electronic products related to analog, digital, embedded MCU and firmware, power supplies and more. I accurately quote and finish projects, following through with promised contracts. Focused on PCB Design/Layout and component selection. Also on the preparation of a PCB for production. My skills: - Altium Designer - Developing electronic circuit diagrams - Developing printed circuit boards ( PCB ) - Programming microcontrollers ARM STM32 - Developing devices for GPS navigation If you have any questions please send me a note, thank you.
    vsuc_fltilesrefresh_TrophyIcon RTLinux
    Microcontroller Design
    Design for Manufacturing
    PCB Design
    ARM Microcontroller
    Arduino
    ESP32
    Multilayer PCB
    Altium Designer
    Electrical Engineering
    Digital Electronics
  • US$60 hourly

    • 5.0/5
    • (29 jobs)
    Embedded Linux Software Developer with linux device driver, yocto BSP specialization and Zephyr RTOS As a Embedded Linux Software Developer and Linux enthusiast, - Specialized in embedded Linux Device Driver development, linux BSP support for various ARM chipsets and yocto customization - Involved in upstream linux driver development, porting of Linux kernel, device driver and uboot across multiple version (stable and mainline) - Good experience in board bring up activity for various custom board with multiple peripherals such as Wifi, Ethernet, Audio codec, Emmc, SPI, USB OTG and gadget configurations, Accelerometer sensor, PCIe, modem sim card interface, etc - Good knowledge on yocto configuration, build environments such as makefile, cmake, autotools, git - Experience in Zephyr RTOS for micro controllers Nuvoton M480, STM32 discovery, nrf9160 - Toradex Collibri Imx6ULL, Variscite imx6, Compulab Imx7d, Rockchip fireprime rk3128, Qualcomm mdm9607, Allwinner T7, Allwinner R329 - Buildroot and Armbian
    vsuc_fltilesrefresh_TrophyIcon RTLinux
    Kernel
    Linux
    Driver Development
    Bootstrap
    Automotive Engineering
    Git
    Embedded Linux
    Embedded System
    Embedded C
  • US$79 hourly

    • 4.4/5
    • (316 jobs)
    Hello, Everyone. Diligent Information Technology Specialist with thorough hands-on experience in conceptualising, overseeing, and executing revenue-generating projects of different complexity and intensity. Determined to bring high standards, transparency in client engagement and full commitment to each assignment and I am excited to collaborate with the brightest minds in the industry. More than 2500 of hours @Upwork Over 10 years proven track record of success in cross-continental project management Skills: * Systems administration: Linux (RedHat, Debian, Ubuntu), FreeBSD, Windows * Network administration: VLAN, VPN, Wireless networks, Network equipment management (HP, Cisco, Huawei, Juniper), Deep understanding of network architecture * Wireless: Aruba (WLC, Clearpass) , Fortinet, Aerohive, Cisco (WLC) and Meraki * Routing technologies: BGP, OSPF, EIGRP, IS-IS, RIP, Static routing * High availability: active-passive clusters (HSRP, VRRP, JRRP), load-balancing techniques * Security: firewalling (ASA, FWSM, Fortigate, Juniper including SSG, SonicWall,pfSense), antivirus techniques, antispam techniques, PKI, IDS/IPS, RADIUS (Windows / FreeRadius based) * Voice and Videoconference: Polycom, Skype, Cisco (VCS, CCM, CUCM, Unity, IMP), Nortel, Asterix type (TrixBox, Elastix, etc.) * Network Management Systems: CIsco Prime, Cacti, PRTG, Zabbix, NAGIOS
    vsuc_fltilesrefresh_TrophyIcon RTLinux
    Cisco
    AWS Systems Manager
    Security Assessment & Testing
    Database Administration
    Firewall
    Cloud Architecture
    Network Penetration Testing
    Cisco Certified Network Professional
    Network Administration
    Microsoft Office
    Network Security
    Fortinet
    VoIP
    Network Design
  • US$50 hourly

    • 4.9/5
    • (101 jobs)
    I am an experienced back-end web developer, and am available for projects ranging from simple sites to a customized database driven website, as well as provide straightforward and easy to understand support materials. My experience involves working on and creating database-driven content-oriented applications. My skills include, but are not limited to PHP, MySQL, XML and more, and have worked on simple small applications to enterprise level framework (Symfony/Doctrine) design, and have created and distributed my own Open Source software. I am familiar with REST API calls and also have have some experience working with jQuery and Javascript. Beyond this, I am also an experienced and highly educated writer, with strengths writing technical materials as well as other more casual formats. These skills stretch from tutorial writing to other less technical topics. I have had experience writing in trade publications, academic journals, blog posts and more since the 1990's and have a strong track record for completing projects under a deadline. I hold a Masters degree in Library and Information Science, with a strong concentration on technology, and have experience and interest in everything ranging from Sociology, History, Library Science, Technology, and more. As a result, one of my strengths is that have a strong understanding of the difference between data and information, and the importance that well structured information provides for both developers and end-users.
    vsuc_fltilesrefresh_TrophyIcon RTLinux
    Content Management
    XML
    PHP
    Writing
    MySQL Programming
    LAMP Administration
    Article Writing
    Blog Writing
    Copywriting
  • US$45 hourly

    • 4.9/5
    • (221 jobs)
    Top rated Upwork contractor. I specialize in Shopify and Shopify Plus .If you want theme customization, private app, development of new theme or anything related to Shopify , I'm your guy! With my more than a decade of experience in Shopify , I can build Shopify stores from scratch and do custom changes both cosmetic and technical.
    vsuc_fltilesrefresh_TrophyIcon RTLinux
    Shopify Plus
    Shopify Apps
    Shopify SEO
    Adobe XD
    Liquid
    HTML5
    jQuery
    CSS 3
    JavaScript
    CSS
    Ecommerce Website
    Shopify
    Shopify Templates
    Shopify Theme
    HTML
  • US$40 hourly

    • 4.6/5
    • (1 job)
    10 YEAR EXPERIENCE IN FPGA and software design - 100% JOB COMPLETED - COMPLETED ABOVE 100 JOBS IN FPGA/VHDL/VERILOG - 200 VERY GOOD REVIEWS in freelancer.com I am an electronics engineer with excellent academic background, firm language skills (IELTS 6.0) and 10-years experience in TOP SKILLS below (Graduated Very Good Degree - Top 5% graduated Student at Top University in Vietnam) TOP SKILLS 1. FPGA Design. (VHDL/Verilog) 2. Embedded System Design. (Schematic, PCB Design) 3. Software Design. (C/C++ in Linux system) TOP PROJECTS - Ethereum Miner This is the big project which brought 400k USD profit for company and brings the 10M USD revenue for Xilinx. We released the first Ethereum miner for FPGA in the world and in the top in speed in 1 year. I worked in both software (C++ code) controller code and FPGA code. This FPGA code is driven at 600 MHz. In this project, I got the experience to drive high speed with HBM, how to overspeed the memory compared to the datasheet speed. - Other coin Miner (Handshake coin, Bitcore coin, Tellor coin…) Quite same as Ethereum Miner, those project are creating the miner for some small coins, but the difference is, while ethereum miner is the first memory hard algorithm implementation in the world, those coin is only computing coin. I drived in handshake project with 700Mhz in vu35p Xilinx chip, and has the triggier to track the temperature of the chip. - Database Server Emulation Creating the 100G Ethernet TCP/IP controller for the board Create the database string processing Create the memory controller This project might reduce the cost for the current database server and also reduce the latency to response to users. - Zynq and CPU DRAM Controller This is the project to make the switch between CPU and FPGA to control a DIMM to reduce the latency transfer data between CPU and FPGA. - Walker Recognition Design Human Detection IP on FPGA Zedboard using Verilog language. Design Camera Controller IP to capture images from Camera OV5640 storing into DDR3 RAM. I need to use XDMA xilinx ip core to transfer data between PL and PS. TOP SKILLS: • 100G TCP/IP in C1100 board • Improve timing and clock speed for a FPGA (My fastest design is 700MHz) • Partial Reconfiguration • Pcie XDMA Xilinx IP Core • Zynq Vitis, SDK and Controller, transfer data between PS and PL through DMA • Zynq Petalinux • Linux command skill • Familiar with Makefiles and Linux environment with command and tcl design • Familiar with cocotb, C++ cosimulation in Xcelium tools LANGUAGES -English: IELTS 6.0 (Reading 6.5, Speaking 6.5, Writing 6.0, Listening 5.5)
    vsuc_fltilesrefresh_TrophyIcon RTLinux
    Verilog
    C++
    Embedded C
    Embedded Linux
    FPGA
    VHDL
    MetaTrader
    C
  • US$30 hourly

    • 4.5/5
    • (54 jobs)
    As a seasoned JavaScript engineer with over 7 years of experience, I specialize in crafting and maintaining bespoke web applications. My journey has spanned from developing MVPs to advanced SaaS platforms and complex enterprise solutions. My proficiency lies in both front-end and back-end development, ensuring a full-stack capability to meet diverse project requirements. Front-End Expertise: - Mastery in JavaScript (ES6+), TypeScript, React.js, Next.js, along with a strong understanding of UX/UI principles for optimal user interaction. - Proficient in HTML5, CSS3 (SASS/SCSS, LESS), and Bootstrap, enabling me to create responsive and visually appealing interfaces. - Experienced in implementing modern web technologies like SWR, Redux, Redux-thunk, Redux-saga, and integrating Server-Side Rendering (SSR) and Progressive Web Applications (PWA). Back-End Skills: - Expertise in Node.js, Nest.js, Express/Koa, with the ability to integrate various databases such as MongoDB, PostgreSQL, Supabase, and DynamoDB. - Familiar with Python/Django, GraphQL, Laravel/PHP, and Shopify, allowing for versatile back-end solutions. - Proficient in AWS services (Lambda, Cognito, Amplify, S3, IoT), Firebase/Firestore, and Socket.io for robust and scalable web applications. Database and Web Server Management: - Extensive experience with MySQL, PostgreSQL, MongoDB, Redis, and the implementation of RESTful APIs. - Skilled in managing web servers such as Apache and Nginx. Key Projects: - Developed a healthcare solution enabling patients to book appointments and schedule visits with doctors. - Created a mobile e-learning app for a major worldwide publishing company, featuring a variety of tools, activities, and articles for students and instructors. - Engineered on-demand service applications for various niches including Lawyers, Tutors, and Ride Sharing. - Built a QR-based mobile application integrated with an online web store. As a developer who has mastered the intricacies of web and application development, I am well-equipped to be a strong addition to any remote team or as a solo developer. My expertise ensures that your product will not only meet technical standards but also provide an engaging and effective user experience. Looking forward to bringing my wealth of knowledge and skills to your project. Let's connect and discuss how we can move forward together!
    vsuc_fltilesrefresh_TrophyIcon RTLinux
    API Development
    CI/CD
    Docker
    Web Application
    ExpressJS
    Node.js
    MongoDB
    HTML
    Next.js
    TypeScript
    API Integration
    Redux
    NodeJS Framework
    React
    JavaScript
  • US$35 hourly

    • 5.0/5
    • (3 jobs)
    I am experienced Machine Learning Engineer with additional skiils in C++. I always try to meet client requirements and get expected result
    vsuc_fltilesrefresh_TrophyIcon RTLinux
    Telegram
    Computer Vision
    Bayesian Statistics
    Digital Signal Processing
    TensorFlow
    Telegram API
    Machine Learning
    PyTorch
    C++
    Python
  • US$80 hourly

    • 4.8/5
    • (134 jobs)
    I have been helping small companies reach their goals throughout my 19+ year long career. I have never really worked for a bigger company, and I specialise in startup culture. With me on your team, you can just focus on business decisions and leave it upto me to take care of all your technological needs. I am obsessed with technology and wont stop till I find the right solution - no matter how small or big the problem is! If I am lucky enough to be in your project early, I can guide you to make the best choice with regards to components and project plan to ensure that it meets your desired quality, deadlines and cost. I am an embedded developer as well as an AI expert. My experience is in software and firmware design of embedded micro-controller and micro-processor based systems. has experienced delivery skills help you to achieve maximum throughput, features, and lowest power consumption. I am also good at managing your product end to end, right from component selection to application level software. I have worked on many microelectronics such as Microchip, Atmel 8/16 , NXP 8/16/32 bits, STM32 family, Atmel Cortex-M(SAM), RL78, Arduino, Linkit One, ESP32 , NRF52, PIC32, Am335x, MSP430 but not limited to these and open to your choice. I have interfaced many Sensors and microcontroller peripherals - wired and wireless. I have also done a fair bit of work on Storage, Networking systems, devops(Docker and Linux), and operating system development. With a Masters in Artificial Intelligence from University of Surrey in the UK, I bring several years of dedicated experience to the field of machine learning and computer vision. 🤖 My track record includes successful projects such as CV-assisted image detection and analysis, deep-learning based analysis of audio, hidden markov models etc. Proficient in image classification, object detection, action recognition, and more, I leverage state-of-the-art neural net architectures to provide effective solutions. 🔢 Beyond technical skills, I possess a deep understanding of linear algebra, analytical geometry, calculus, numerical methods, optimization, and statistics. Specialized knowledge extends to digital signal processing, time series analysis, and unsupervised learning. 🤝 Operating comfortably in a team environment, I also bring awareness of business logic and ethical use of Artificial Intelligence. My expertise spans Deep Learning, Machine Learning, Computer Vision, Optimization, Python, Tensorflow/Keras, Pytorch, and OpenCV, making me a valuable asset to any organization. I am always excited and open to working on cutting edge technology and am adaptable to new technologies. I have done over a 100 freelance projects of various durations throughout my career. Hire me and you shall feel the difference!
    vsuc_fltilesrefresh_TrophyIcon RTLinux
    Linux
    Driver Development
    ARM Microcontroller
    ARM Cortex-M
    Git
    Internet of Things
    C++
    NFC
    Firmware
    nRF52832
    CC2640
    STM32
    Microcontroller Programming
    Embedded C
    Real-Time Operating System
  • US$90 hourly

    • 4.9/5
    • (298 jobs)
    I'm a stay at home dad who watches over his newborn daughter and runs a small business that focuses on WordPress. On a daily basis I assist my clients with database issues, CSS edits, HTML edits, PHP tweaks, malware, backups, optimization, migrations, troubleshooting, updates, and a plethora of other technical issues that arise with hosting. I can basically adapt to anything WordPress related. I also have 15 years of professional experience with various Linux distros, 8 of those years I worked as a professional Linux admin in the Hosting industry with various Web Hosts, which has given me proficiency with the LAMP stack, LEMP stack, DNS, SMTP, POP3, IMAP and Linux in general. I have VPSs aplenty. Which has given me the opportunity to gain experience with Amazons EC2 service, DIgitalOcean, and Google Cloud Computing. I've worked with clients converting their PSD mockups to fully functional responsive sites, created custom themes with Foundation 5 and Bootstrap, and learned that SASS and SCSS aren't horrible, scary monsters that will haunt me in my sleep, I believe open communication with my clients is the key to my success. Without a clear, concise outlook, projects become unnecessarily difficult for all parties involved.
    vsuc_fltilesrefresh_TrophyIcon RTLinux
    Web Host Manager
    Network Security
    cPanel
    DigitalOcean
    DNS
    LAMP Administration
    Linux System Administration
    SSL
    Web Hosting
    MySQL
    Amazon Web Services
    WordPress
  • US$18 hourly

    • 4.9/5
    • (220 jobs)
    Services I offer: ✅ WordPress Development ✅ Theme Customization ✅ Plugin Integration ✅ Responsive Design ✅ Website Optimization ✅ Troubleshooting and Support Exceptional front-end and back-end web development skills with 12+ years experience. I develop responsive, interactive websites with high-quality UI that are pixel-perfect. My expertise lies in developing and customizing WordPress websites, ensuring seamless functionality and optimal user experience. From crafting responsive designs to integrating third-party plugins, I am well-versed in harnessing the full potential of WordPress to bring clients' visions to life. Throughout my career, I have consistently delivered high-quality projects within agreed-upon timelines, maintaining clear communication with clients throughout the process. My strong problem-solving skills and attention to detail enable me to handle complex challenges with ease. If you are seeking a reliable WordPress developer who can transform your ideas into reality, let's collaborate! Contact me today to discuss your project requirements and take the first step towards a successful website launch. I work with following services:- * PSD to HTML * Responsive HTML * Mailchimp Newsletter Template * Web design ( Framework like Bootstrap, Grid System etc. ) * PSD to WordPress * HTML to WordPress * WordPress theme customization/development * WordPress Support * WordPress plugin customization/development * PSD / HTML to Concrete5 * Concrete5 projects customization, support and training * Payment Gateway Integration (Paypal, Stripe, Authorize.net, Square etc) * Third Party API integration * Social Media Signup/Login * Facebook Graph API * Google API * Rest API's * SSL setup * Hosting Change * Domain Migration * Website Revamp My goal is to do great work, for great people and organizations. I am always happy to sign NDA (Non-Disclosure Agreement) before sharing your ideas and starting your project. Click the Hire Now button at the top right to get in touch. Thanks for visiting my profile.
    vsuc_fltilesrefresh_TrophyIcon RTLinux
    Page Speed Optimization
    jQuery
    WordPress e-Commerce
    MySQL Programming
    Concrete5 CMS
    PSD to WordPress
    WordPress Plugin
    WordPress
    Elementor
    HTML
    WordPress Theme
    PHP
    Responsive Design
    WooCommerce
    CSS 3
    CSS
  • US$50 hourly

    • 5.0/5
    • (89 jobs)
    🔹Highly skilled IT Specialist with premier support capabilities. 🔹Efficient communicator in English. 🔹Unwavering commitment to responsiveness. 🔹Over a thousand hours logged on Upwork. 🔹Successfully completed more than 60 projects on Upwork. 🔹Bringing 22 years of IT experience to the table. 🔹Available full-time and open to relocation. As a certified System Administrator, Developer, Programmer, and Project Manager, I am the professional you seek assistance from. I hold LPI (101 & 102) and RHCE certifications and have a well-rounded skill set in the IT sphere, from automation to development across mobile, desktop, and web platforms. Over the past 15 years, I've acquired significant experience across a broad spectrum of software and systems. Notably, my skills include: 1. **Linux System Administration**: I've worked with numerous Linux systems since 2006, starting with Fedora, then CentOS and Ubuntu, managing their installation, configuration, and maintenance. 2. **Scripting**: I take immense pleasure in scripting, particularly for automation. I've honed my skills in Linux (bash) and Windows (AutoIT - batch) scripting, automating tasks even without command-line interfaces. 3. **Hosting Services**: I am proficient in handling various control panels for hosting and administration like cPanel, Plesk, ISPconfig, Webmin, Usermin, AWS, DigitalOcean, and Rackspace, among others. I can also manage standalone software like Apache, MySQL Server, and other servers. 4. **VPN Services**: I've installed and configured servers for VPN services, including PPTP and OpenVPN, and developed custom control panels for clients. I am proud to be the solo developer of vpnplatform (vpnplatform.org/team). 5. **Malware Mitigation**: I can clean your Windows systems of malware and secure them effectively. I've even developed an app, "Automated Malware Wizard," for comprehensive malware cleaning and system updating. 6. **Networking**: As a former ISP CEO, I delivered internet services to over 200 local subscribers at Hamad ISP. 7. **VOIP**: Experienced in Asterisk and Asterisk GUI installations. 8. **Virtualization**: Proficient with VMware and VirtualBox, complementing my hosting service capabilities. 9. **Email List Management**: I can effectively manage and clean your email lists, ensuring they stay away from SPAM lists. 10. **Web Development**: Proficient in HTML/CSS/PHP/MySQL/JavaScript for web page development. 11. **Other skills**: Experience with Oracle Databases, Android, and Java programming. I am always available for contact via email, SMS, or phone call, and ready to relocate if needed. I respect my work, ensuring confidentiality while dedicating my utmost effort. As the leader of a team of IT specialists, I can provide a holistic solution to your IT needs, from mobile to web development. Our mission is to deliver beyond your expectations. Please note: I am flexible with my availability and open to relocation. Currently, I reside in Istanbul, Turkey. Best regards, Ahmed Hamad
    vsuc_fltilesrefresh_TrophyIcon RTLinux
    Docker
    Zabbix
    Network Monitoring
    Jenkins
    Technical Support
    OpenVPN
    Amazon ECS
    Virtualization
    Linux System Administration
    Network Administration
    Terraform
    Ubuntu
    CentOS
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