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Computer Hardware Engineers
Stephen A.
Agua Buena, Costa Rica
🏆 Top Rated Product Developer ( I've developed my own products || I'm now helping others on the Upwork platform )
🏠 I have a Small Home Laboratory to develop/debug prototype boards for your product
💭 I'm a native English speaker
My name is Stephen, and I have 25+ years in product development, including 13 years at Microchip in roles like Test Engineer, Design Engineer, Silicon Validation, and Applications Engineer.
I specialize in developing products from concept to working systems. I can handle both hardware and software or work flexibly on specific areas like architecture and hardware design.
I’ve developed two successful products:
(1) KEYKatcher hardware keylogger – A device plugged into a PS/2 keyboard port to record and play keystrokes. It was popular among parents for monitoring children's computer use, with tens of thousands sold. Sales declined as PS/2 ports became obsolete
(2) TightWatt pool timer – An intelligent controller for swimming pool motors, featuring a year-round algorithm. It was awarded a patent and gained national distribution.
Through all the product development, I’ve created a system for planning and designing working products. This system reduces costs ( by reducing mistakes ). I frequently make product improvements in
1️⃣ Lowering energy usage: important in battery-powered products
2️⃣ Increasing performance: increasing sample rates or changing communications protocols
3️⃣ Lowering product cost: making full use of the microcontroller peripherals to reduce external components
I have completed more than 70 projects on Upwork but to check my capabilities or skills, you can check out the following projects:
➡️ Hardware Prototype Design for Plant Monitor Product using ESP-32
➡️ Microchip ATtiny202 Code Development
➡️ Energy Storage Monitoring System
➡️ BM83 Bluetooth Application Schematic
➡️ Embedded System with PIC Microcontroller & Accelerometer
➡️ PCB Power Usage Optimization
➡️ TI MSP430 Development
Additional Skills:
➕ Leading-edge technologies such as USB/USB-C, Lithium Battery Charging, LED and Color Mixing, I2S Digital Audio, and Analog Measurements
➕ Common Communication Busses: USB, RS-232, RS-485, CAN, I2C, SPI, Infrared ( with carrier )
As mentioned above, I have a small home laboratory where I have all the tools I need to develop/debug prototype boards for your product. This includes:
⚙️ Multiple programmers for Microchip, Atmel, and TI parts
⚙️ Logic analyzers to quickly find issues with communication busses such as I2C, SPI, UART, I2S, ….
⚙️ A “power profiler” with picoAmp range ( yes, picoAmp, a trillionth of an Ampere ) for power optimization of low-power products
⚙️ A reflow oven for assembling prototype PCBs
⚙️ Inspection equipment for verifying PCB assembly
⚙️ A fellow Upwork contractor is available to do the physical assembly work. She works at a much lower rate than me and has the patience to hand-populate / hand-solder prototype boards
Some electronic inventory is on hand. I may have all the components in-house to complete your project
Feel free to contact me through UpWork.
Best Regards,
Stephen
- Electrical Engineering
- Assembly Language
- C
- Circuit Design
- PIC16
- Hardware Prototyping
- USB Electronics
- PCB Design
- Embedded System
- Microcontroller Design
- MSP430
- Software Architecture & Design
- Microcontroller Programming
David M.
London, Canada
Let me help you get your message to your audience professionally.
Based in Ontario, Canada, with over 25 years in the Live Events Industry and now specializing in the Virtual Events Industry, I have the experience behind the scenes and in front of the audience to give your message the polish and engagement it deserves.
I look forward to hearing from you.
- Twitch Interactive, Inc.
- Video Editing
- Video Intro & Outro
- OBS Studio
- Video Production
- Video Post-Editing
- Wedding & Event Video
- Hosting Zoom Calls
- Zoom Video Conferencing
- Twitch
- Webinar
- Video Stream
Artem R.
Batumi, Georgia
I help US-based businesses and IT teams build and maintain stable, secure, and cost-effective environments. With over a decade in a major security company and deep hands-on experience across a wide range of technologies, I specialize in:
Windows Server infrastructure: AD, DNS, GPO, RDS, Hyper-V, Failover Clustering
Networking: MikroTik, UniFi, VPN setups (site-to-site & remote access)
Virtualization: VMware (ESXi, vSAN), Proxmox VE
Backup and Storage: Veeam, Synology, QNAP, DAS/NAS systems
Remote management: RustDesk
I don’t just follow manuals—I solve problems with real-world solutions that balance performance and business needs for a budget. Whether you're starting from scratch or need expert support on a legacy setup, I deliver clear and reliable results.
Certifications: MCSE | MCSA | AZ-104
Currently working with US clients via Upwork — open to long-term remote roles or hybrid setups.
- Computer Hardware
- Microsoft Windows
- Windows Server
- Network Administration
- MikroTik
- Microsoft Hyper-V Server
- Windows Administration
- PRTG
- Computing & Networking
- Server Administration
- Server Virtualization
- UniFi
- VPN
- VMware vSphere
- Storage Device
Trevor M.
Melbourne, Australia
With nearly 30 years of experience working across every IT platform, from MS-DOS, Novell Netware, Windows NT ... to every major platform on-premise and in the cloud today, there is not much I haven't worked with.
I am a software developer who crossed over into hardware, then network engineering and administration. I work predominantly in cloud computing and datacentre’s space; this gives me the ability to understand how the software integrates into the hardware and network platforms very well.
As CEO of my UpWork agency, vCloud Group - Global Cloud Services, I tend to work in all areas of Information Technology and Communications. Anything from desktop and workstations, to server systems, running Exchange, SQL Server, Oracle, Azure Integration, and system services like Disaster Recovery / Business Continuity, Multi-Site Cloud Networks and VoIP-based phone system.
I am always working with my team to find the best possible solution for a client; I am not scared to advise you of a better solution that I believe you deserve or do better with. We have had several clients who started with one solution, then ended up with a better solution that exceeded their expectations.
My experience has allowed me to work in areas:
• IT systems and management,
• technical support, and
• project management.
My focus areas on UpWork are:
• Building of dedicated cloud networks in all major data centres,
• VMWare vSphere/ESXi Hypervisor 5, 5.5, 6, 6.5, 6.7, 7.0,
• VMWare vCenter 5.0, 6.0, 7.0,
• VMWare Horizon View 4, 5, 6, 7, 8 all versions,
• Microsoft Windows 10/11 all versions,
• Microsoft Windows Server 2012/2016/2019/2022 all versions,
• Linux all versions,
• Dedicated Hosting Server i.e., cPanel/WHM, Plesk, CyberPanel,
• Hosting Migrations from/to cPanel/WHM, Plesk or CyberPanel,
• System Migrations, on-premise, cloud or hybrid (both),
• Email Migrations (Google, Office 365 Migrations, and any to any),
• VoIP Phone Systems, built-in any datacentre worldwide
• All backup solution software on-premises or in the cloud.
I am more than happy to discuss and look at projects first before accepting a contract; I ask many questions, and I double-check and follow up on everything I do. I hope to work with you soon.
- Microsoft Exchange Server
- Windows Server
- Office 365
- VMware vSphere
- VoIP Administration
- Linux System Administration
- VMware Administration
- Microsoft SQL Server Administration
- Computer Network
- 3CX
- Cloud Computing
- WordPress
- Web Hosting
- cPanel
Emre G.
Istanbul, Turkey
FPGA Design Engineer and ASIC Frontend Specialist with a track record of elegant solutions to complex problems. With a PhD in Electrical Engineering, I leverage my deep understanding of digital design to deliver innovative projects, notably in DSP systems and software-defined radios, using state-of-the-art Xilinx FPGA technology. Ready to bring expertise and precision to your venture.
- Embedded Linux
- Embedded System
- FPGA
- Embedded C
- Arduino
- Python
- C++
- Verilog
- SystemVerilog
- Digital Design
- Electrical Engineering
- VHDL
Binh N.
Viet Yen, Vietnam
I am an Electronic Engineer with 10 years+ of experience specializing in hardware design.
I am proficient with a wide variety of:
- Microcontrollers: STM8, STM32(ST), Kinetis (Freescale-NXP), MSP (TI), PIC (Microchip), ATmega
- Processors: IMX6, IMX8, STM32MP151, TI AM6231, 6252, Allwinner T113-S3.
- Computer module: Raspberry Pi 4, 3, zero; PI CM4; IO board for PI
- Connectivities: GPRS/4G/NB-IoT/LTE-M (SIMCOM SIM800, SIM900A, SIM7070, SIM7080, SIM7600, SIM7000, SIM7020, Quectel MC60, MC66, BG77, BG96, EC21, EC25, EG25, BG95, Sierra); Zigbee; LoRa; RF; WiFi/Ethernet, BLE, ESP32
- High speed: Ethernet upto 10Gbps, USB, HDMI, PCIe,...
- IoT Devices, such as: Device measure Air Quality Index, Water Quality Index, Smart Agriculture, Smartswitch, Gas Detector, CO Detector.
- Sensors: Electrochemical sensors: CO, NO2, SO2, O3; PM2.5; PM10; pH, EC, DO, Temperature, Humidity, Pressure, Soil Moisture,...
- Battery Management System, Battery DC Charger, Solar Charger
- Control of Power Equipment such as Motor, Lamp,.. high power
- IMU system, Eg: MPU9150, MPU6050
- Powers: AC-DC, Buck, Boost, Solar Charger, DC charger
I can take your ideal and transform it into a functioning circuit, delivering design file, prototype PCB and detailed BOM, CAD using Altium Designer, KiCAD, Eagle
I enjoy using my creative expertise and knowledge to provide my friends and clients with the best solution. I like complicated and challenging requests, and my sense of tackling hard jobs make me ready for almost any job in my area of expertise, little or big.
- Power Electronics
- Microcontroller
- Schematic
- PCB Design
- KiCad
- ESP32
- Raspberry Pi
- Eagle
- Hardware Design
- Firmware
- Altium Designer
- Sensor
- Embedded C
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