Hire the Best Embedded Systems Engineers
in Bulgaria

I'm an engineer (master) in automation . With additional mathematics and programming specialists (Bachelor). I have been working for more than 10 years freelancer- first in Elance and then in Upwork. Experienced in: - Software and hardware design of the microcontroller systems - Micrchip(Atmel)(PICs,AVR,Atmel SAMD20/21,SAMR21,SMW25), TI( MSP430,CC2540/41) ,ST(STM32) - Development sytems IAR EWAVR , IAR MSP430 ,Atmel Studio 7 ,MPLAB X(XC,CCS compilers),Keil ARM,Atollic TRUEStudio for STM32,Arduino IDE,PlatformIO - RF systems based ESP32 - Espressif , nRF51/52xxx - Nordic - Circuit and PCB design of the electronic systems - Proteus, Altium Designer. - MS Visual Studio 2019 (Visual GDB),PlatformIO - Testing prototypes with customers. - Create full documentations for prototypes My top projects are realized in Upwork are: 1.Temperature measurement network(firmware for ATmega256RFR2 based devices) 2.NTC data logger (full design circuit,PCB and firmware - based MSP430FR device) 3.Finalizing LivePCB project 4.I need some programming routines created for an Atmel SAM R21 controller (firmware for SAMR21 and GPS NMEA protocol.

Experienced developer both in Windows applications and embedded software systems. Strong knowledge of C,C++,C#,Java,Python,Visual Basic. Reverse Engineering skills: IDA Pro, OllyDbg, Ghidra. Automotive protocols: CANBUS, J2534, K-line, OBDII, Seed Key algorithms

I have my own registered Engineering Prototyping Company, where we help customers go from idea to manufacturing. We offer a full-cycle prototyping journey: Idea--Firmware--3D design--PCB design--CAD/CAM--Testing--App--Sourcing and Manufacturing in China We help with Management and Engineering ONE stop for all prototyping needs: With over 7 years of experience, we can help you design your electronics, produce your 3D model, CAD/CAM and manufacture your prototype. Electronics and Firmware - Interfaces: USB, Ethernet - Protocols : MQTT, HTTP, FTP, Modbus TCP/RTU, SNMP, TCP/IP, UDP/IP, DLMS, custom protocols - Wireless: BLE, WiFi, UWB - Security: AES, SSL/TLS - Multi-layer PCB design experience with: • Microprocessor: ARM Cortex-M3, Cortex-M4, • STM32, ESP32, Atmega, Nordic •. Low-power chip: Nordic nRF52840, nRF5340, nRF52832, ESP32, STM32WL series • SoM, custom board design for: CM4, Rasp, Orange Pi, iMX8, Jetson Nano/Xavier/Orin, RK3588, RK3568, RV1126 Rockchip, TI AM6254 ,... • Power supply: DC-DC (isolated, Flyback, Boost, Buck, LDOs…). • Communication circuit with motor driver: BLDC, AC servo, DC servo…via I/O, ADC and CAN. • Wireless, IoT: RF, Wifi, Bluetooth 4.0, GSM (3G, 4G/LTE), LoraWAN... - Experience in building evaluation kits such as Arduino, ESP32, ESP8266, STM32... - BOM creation from favourite suppliers: Digikey/Mouser/JLCPCB, LCSC... - Knowledge of proper layout techniques for EMC and EMI compliance. - Knowledge of DFA, DFM, and PCB manufacturing and assembly processes. - Firmware development using C, C++, and Python language, QT - UX/UI design for STM32, ESP32, Rasp Pi, using Figma, TouchGFX, LVGL - IoT: MQTT, Thingsboard, AWS, Blynk.. Industrial and Mechanical Design: •CAD for machines, manufacturing (DFM), 3D printing, reverse engineering (Autodesk Inventor and Fusion 360, SolidWorks, Siemens NX, ) • CAD product design, parametric CAD design and rendering (Autodesk Inventor and Fusion 360, SolidWorks) - Physical product prototyping and Manufacturing: -Making the casing ( metal and plastic) in-house without machines. Fusion 360, SolidWorks, Blender, We offer travel to location. We offer 24/7 support. English, Russian, Bulgarian. Japanese, Spanish

I am an experienced engineer with over 8 years of experience in the Automotive, Medical, Industrial, IoT and Commercial fields. I have completed more than 30 projects and have a strong track record of understanding my clients’ needs. My expertise includes Schematic development, PCB Design, Microcontroller programming and Systems Engineering. I have successfully delivered projects ranging from small-scale prototypes to large-scale production runs. My clients appreciate my ability to lead their ideas from concept to a complete product on the market. I am dedicated to delivering high-quality work, ensuring customer satisfaction and building long-term relationships with my clients.

Hey, I'm Viktor 👋 I Will Automate Your Digital Business Operations. Send me a message to get started. -I'm currently saving over $30,000/m for a variety of agencies using custom CRM integrations and content systems that produce 15+ articles per day. -I work with Calo ($39M raised) to build an AI-powered customer support system. -I save 25+ hours every week using a lead triage, customer communication, and qualification system for a UK alloy wheel repair shop. -Automated approval workflows for a YouTube agency managing 700+ projects- Creative Director no longer bottlenecks production What changes for you: -Approvals, handoffs, and status updates happen without you -Leads get qualified, routed, and followed up on automatically -Your team operates from one source of truth instead of Slack threads and spreadsheets -You stop hiring for problems that automation solves How I work: I scope properly, deliver fast, and focus on measurable ROI. I underpromise and overdeliver. Whether you need an approval system for 20 projects or 700, I can help. I provide Loom updates throughout the project so you always know what's happening and what's next. Tools: n8n | Make | Asana | ClickUp | Monday | Airtable | API Integration | ChatGPT | Claude | Voice AI (Vapi) | GoHighLevel | Zapier Top Rated on Upwork. 100% Job Success Score. 40+ projects delivered. Send me a message if you're ready to stop being in the weeds. --- Extended Bio I've been on Upwork for about a year. Top Rated badge, 100% Job Success Score, 30+ projects completed. Before this, I ran a video editing agency serving astrology and spirituality creators. After ChatGPT launched, I started experimenting with how AI could optimize business workflows. I taught myself automation through free resources and structured programs- passed the full Make Academy, became n8n certified, and completed ClickUp's certification program. I've worked with clients across the US, Canada, UK, Germany, France, Portugal, Austria, Finland, Croatia, UAE, Bahrain, Australia, and the Philippines. Most of my clients are agencies and professional service firms drowning in operational chaos- founders who can't take a vacation without everything falling apart, teams waiting on approvals that bottleneck production, and businesses that could handle 30-50% more clients if their operations ran smoother. That's what I fix. My approach: I scope projects properly and manage expectations clearly. My motto: "You start as an uninformed optimist, then become an informed pessimist, and finally end up as a realistic optimist." I underpromise and overdeliver. I focus on fast delivery with measurable ROI. Most of my clients see thousands in monthly savings after systems go live. Communication: I provide regular updates- text for quick check-ins, Loom videos for walkthroughs. You'll always know what's happening, what's next, and what's needed from your side. The work I do: I build systems that run 24/7 without you. Approval automation so your Creative Directors don't bottleneck production. CRM systems so leads don't sit idle for 30 days. Client onboarding workflows so intake → consultation → engagement happens without manual handoffs. AI agents that qualify leads, answer customer questions, and book appointments. Voice agents that handle restaurant reservations and hotel bookings end-to-end. Complex n8n workflows with API integrations when off-the-shelf tools don't cut it. I work with your existing tools: Asana, ClickUp, Monday, Make, n8n- rather than forcing you to rebuild your stack. Augmentation, not replacement. If you're an agency owner tired of being the approval bottleneck, or a professional service firm losing revenue to manual operations, let's talk.

Hi there! My name is Nikolay Panev and I'm a full-stack web developer with 10+ years of experience. I specialize in building custom web applications from ground up. I've had the opportunity to work on diverse projects, ranging from innovative laboratory management systems (LIS/LIMS) and healthcare tools to scalable platforms for the real estate and e-commerce sectors. I specialize in leveraging modern JavaScript frameworks, specifically Vue 3 and Nuxt, to build high-performance front-ends paired with scalable LAMP/LEMP and Node.js infrastructures, complex API integrations and Git version control. If you're looking for a skilled and reliable developer to help you bring your vision to life, please don't hesitate to get in touch.