Hire the Best Embedded Systems Engineers
in Hungary

I design, review and debug embedded electronic hardware from schematic through PCB manufacturing and prototype bring-up. My main focus is practical, manufacturable electronics: mixed-signal and analog circuits, MCU-based hardware, power supplies, industrial interfaces, and custom test and measurement systems. I can help with: • Schematic design and design review • Multi-layer PCB design and existing PCB modifications • Analog and mixed-signal circuitry • Power supplies, protection and interface circuits • MCU-based embedded hardware • Component selection, BOM and manufacturing documentation • PCB bring-up, measurement and hardware troubleshooting • Prototype assembly and validation • 3D PCB/enclosure integration EDA: Altium Designer, KiCad Embedded: STM32, Microchip, C/C++, FPGA/CPLD logic Test & Measurement: LabVIEW, automated test systems, hardware validation Lab: oscilloscope, logic analyzer, multimeter and hands-on PCB debugging Mechanical: Solid Edge, Fusion 360 I am comfortable working both from a new set of requirements and from an existing design that needs review, redesign, troubleshooting or preparation for manufacturing. Available for ongoing development as well as focused schematic, PCB and debugging projects.

Electrical & Embedded Engineer | PCB & Power Electronics I am a hardware engineer with 6+ years of experience designing high-performance PCBs and electronic systems for automotive, robotics, and renewable energy sectors. I deliver reliable, production-ready hardware solutions, and I also provide embedded software support when needed. Key Expertise: Hardware Design & PCB Development: High-power circuits, analog/digital, SMPS, gate drivers (Altium, Zuken, Xpedition, KiCad, Eagle, EasyEDA) Embedded Systems & Software: Firmware design, hardware integration, MATLAB simulations Industry Experience: Automotive, robotics, solar/industrial power If you need a hardware specialist who delivers precise, efficient solutions, I’m ready to help bring your project to life.

As an electrical engineer, I specialize in the design and development of complete electronic systems — from concept to working prototype, covering both hardware and software. My core competencies: - PCB Design – modern, production-ready circuit board layouts using tool like Altium. - Firmware Development – programming microcontroller-based systems (STM32, AVR, ESP32, etc.) - Desktop Application Development – creating PC software for data processing, control, and visualization (Labview,C,C++,Glade) I deliver reliable, well-documented, and thoroughly tested solutions. I'm open to collaborating on smaller subprojects as well as leading full development cycles. My key projects include: DLP exposure controller – development of control electronics and software for a digital light processing system Smartwatch PCB and firmware design – complete hardware and embedded software development for a wearable device Dog GPS tracker – design and implementation of a GPS-based pet tracking system

Hi, I’m Patrik — a mechatronics engineer and business systems developer. I build internal tools, workflow automation systems and operational workspaces for companies that want to reduce manual work, avoid errors, improve reporting, and make their processes easier to run. My work sits between software development, business operations, engineering workflows and real users. Depending on the project, this can mean a custom C#/.NET desktop application, a reporting automation tool, an Excel/SharePoint integration, a Notion-based operations system, or an automation layer connecting multiple tools together. I’m especially useful when the problem is not just “build an app” or “set up a workspace”, but understanding the workflow, structuring the data, reducing manual steps, and creating a reliable system people can actually use. What I Build • Custom internal Windows tools in C#/.NET, WPF and WinForms • Business workflow automation with Excel, SharePoint, APIs and databases • Notion and Airtable operating systems for teams • Reporting tools and document generation workflows • BOM/rule-based calculation and export systems • Production, lab and engineering workflow software • Barcode/scanner-assisted workflows and data validation • Dashboards, CRM systems, project hubs and operational databases • PDF, Word and Excel export tools • Legacy internal tool improvements and modernization Relevant Background I’m a mechatronics engineer by background, with experience in software, hardware-related workflows, product development, systems architecture and business process design. At Bosch, I worked for around 3 years on software and hardware systems for testing and calibrating inertial sensors. The work started in laboratory test environments and later moved into production-related calibration and validation workflows once the concepts were proven. These tools were used by technicians in real test and production workflows, where reliability, clear UI, correct data handling and reducing operator mistakes were important. In one product case, the related process improvements contributed to increasing production yield from around 68% to 91%. I have also worked on several related internal tools and automation projects, including: • Electronics lab automation software for high-power LED luminaire testing using TCP and SCPI communication • GUI tools for configuring, tracking and managing measurement workflows • Seismo-acoustic sensor data processing and visualization software • Rule-based Environmental Product Declaration report generation from BOM and product data • Excel, SharePoint and server-based data automation • Notion-based business operating systems, CRM structures, dashboards and project management workflows Business & Systems Experience Beyond development, I also have experience in product development, system architecture and project coordination. I have worked in engineering environments where software, hardware, testing, documentation and business requirements had to fit together. I also have a business development background, which helps me approach projects not only from a technical point of view, but also from the perspective of workflow efficiency, user adoption, operational clarity and business value. This is especially useful for internal tools and business systems, where the goal is not just to create software, but to make the actual process faster, clearer and more reliable. Tech & Tools C# • .NET • WPF • WinForms • Python • Lua • SQL • SQLite • Excel • SharePoint • Microsoft Graph API • TCP/IP • SCPI • Serial/COM • Notion • Airtable • n8n • Make • Zapier • Google Sheets • PDF/Word/Excel generation My Approach I don’t just build screens, pages or isolated automations. I first try to understand the real workflow, the users, the data structure and the constraints around the process. Every system should be: • practical for the people using it • structured around real business or production logic • reliable enough for daily internal use • easy to maintain and improve • clear enough that the team can actually adopt it Ideal Projects • Improving an existing internal Windows application • Building a custom desktop tool for production, testing or reporting • Automating Excel, SharePoint or database-driven workflows • Creating a Notion CRM, project hub or business operating system • Turning manual reporting into a rule-based export process • Connecting forms, databases, files, dashboards and automations • Modernizing a legacy internal tool without unnecessary complexity • Building tools that help operators, engineers, managers or sales teams work with cleaner data and fewer manual steps If you have a messy internal workflow, a spreadsheet-heavy process, an underused Notion workspace, or an old internal tool that needs to become more reliable and usable, I can help turn it into a structured system.

Senior C/C++ engineer with 25+ years of experience in cross-platform software development (Windows/Linux) and POS integrations. Strong background in fiscalization and compliance-driven systems, including device drivers, receipt/printing pipelines, and transaction reliability for multi-country deployments (20+ markets). Expert in cashless payment drivers and payment workflows, as well as POS feature integrations such as loyalty systems and lottery flows. Hands-on experience bridging low-level components (C/C++, device protocols, Qt printing) with service/back-end layers (Go/Rust, REST) and operational data storage (PostgreSQL/MySQL). Known for building long-lived, maintainable production systems, deep debugging of complex field issues, and delivering stable solutions under strict legal and operational constraints. Hands-on experience with ESP32 and Raspberry Pi hardware/software development, including edge connectivity (Wi-Fi/BLE/MQTT), peripheral integration, and resilient device control. Applied OpenAI Codex CLI, Google Gemini CLI, VS Code, Cursor, and Google Antigravity to accelerate prototyping, refactoring, test scaffolding, and technical documentation in production workflows. CORE TECHNICAL STACK: •Domains: POS Integrations; Fiscalization & Compliance; Payments (EFT/POS, cashless/QR); Loyalty; Lottery; Receipt/Printing; Localization. •Languages: C, C++, C#, Java, Go, Rust (REST services), Delphi, JavaScript (POS/Kiosk business logic), Python, Lua, Tcl/Tk. •Frameworks/Libraries: Qt 5/6 (custom static builds); Boost. •OS: Windows, Linux. •Build/Tools: CMake, Git, MSVC, GCC, YACC/BISON. •Protocols/Device I/O: Serial/RS-232; TCP/IP networking; device/printer protocol integration; JSON/XML transaction payloads. •Embedded/IoT: ESP32 (ESP-IDF, FreeRTOS), Raspberry Pi (Linux edge services), UART/SPI/I2C, GPIO, MQTT, OTA updates. •Data/Storage: PostgreSQL; MySQL; Amazon S3 (receipt storage/optimization); Paradox (legacy). •AI Engineering Tools: OpenAI Codex CLI, Google Gemini CLI, VS Code, Cursor, Google Antigravity (code generation, debugging support, test scaffolding, documentation).

I help marketing teams, agencies, and eCommerce brands produce campaign assets, Meta ads, banners, and marketing creatives quickly and consistently. Available for ongoing production support, campaign execution, and asset creation. With more than 15 years of experience in visual communication, I work with marketing teams, founders, and agencies who need reliable output, consistent quality, and assets that are ready to deploy. My background includes retail campaign production for brands like ALDI and Penny Market, along with performance-focused creatives for eCommerce and SaaS. My focus is not one-off design, but campaign and asset-based production. I regularly handle batches of creatives, build structured layouts, and support campaigns across multiple formats. This includes Meta ad variations for testing, banner systems, social and paid ads with clear hierarchy and strong CTAs, as well as multi-page catalogs. I also deliver prepress-ready files with correct bleed, trim, and color setup when needed. With a strong background in retail and printing, I work in systems, deadlines, and clarity. Files are always clean, organized, and easy to hand off to marketing teams, developers, or printers. I work comfortably in structured, task-based environments using tools like Trello, Asana, or Slack. Clear briefs, defined tasks, fast turnaround, and straightforward feedback loops are how I collaborate. Based in UTC+1, I regularly work with U.S. and international teams without time-zone friction. I’m currently available 30+ hours per week for ongoing campaign and production support. If you need consistent design support that can plug into your marketing workflow and handle production reliably, I’m ready to help.