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I help businesses, startups and founders design and build complete software systems, from embedded devices and IoT solutions to backend services, web platforms, desktop applications and mobile apps. Every project starts with understanding your business goals. Based on your requirements, I help select the right architecture and technology stack to build solutions that are reliable, maintainable and ready to grow. I can help with: Software architecture and technical consulting Embedded firmware and IoT systems Backend, web, desktop and mobile applications Hardware and software integration Legacy system modernization and technology migration Monitoring, diagnostics and long-term technical support Documentation and knowledge transfer for your team If you're looking for a software engineer who can take ownership of a project from architecture and implementation to deployment and ongoing support, I'd be happy to discuss your ideas.

Senior Software Engineer and Systems Architect with 15+ years of hands-on experience in commercial development. My core expertise spans native software, microcontroller firmware, and electronic hardware. For the past 10 years, I have been helping my Upwork clients create new products from scratch and implement new features in existing software and hardware products. ■ Embedded Systems and Firmware ▪ Core experience: - Complex business logic & advanced control algorithms - Distributed control systems, machine networking (M2M) - High-performance / low-latency control - Secure, reliable, real-time interprocess communication (IPC) • Typical stack: - C, C++ (C++11/17), STL (except that needs heap memory allocation) - IAR for ARM, Keil + ARM/Clang, GCC for ARM, STM32CubeIDE - ThreadX RTOS (preferred), FreeRTOS, mbed, mbedTLS - No HAL from STM32 in production firmware ■ Native Desktop Applications and C++ Backend Software • Specialization: - High-performance GUI applications based on the Qt Framework (QtWidgets) - Console applications (CLI - command-line interface) - Standalone applications (no GUI or command-line interface) - Windows services and system applications - Any of the above combined into a complex via interprocess communication (IPC) • Typical stack: - C++11/23, STL, Qt6, Boost, ICU, rich own codebase - Microsoft Visual Studio, Microsoft Visual Studio Code - SQL DBMS: Oracle, Postgres, SQLite, MySQL, MS-SQL ● Other - Strong focus on design quality, reliability, and maintainability - Recent domains: IoT, AgTech, Automotive, Manufacturing, Defense, Energy - Recent tech: LoRa, GSM, LTE, LTE-M, Ethernet, RS-485, Modbus, CAN, CAN FD - Recent STM32 MCUs: STM32H7 (single/dual-core), STM32F4, STM32L4, STM32G4 Keywords: C++ C Multithreading IPC Qt Framework Socket IP TCP UDP PPP SSL TLS PLC SCADA MCU Microcontroler STM32 RTOS FreeRTOS ThreadX AVR UART USART CAN LIN Modbus Ethernet SPI I2C DMA RS-232 RS-485 DMA Sensor 12V 24V 48V 5V 3V 3V3 Drone FPV UAV UGV ESC Ardupilot Betaflight Pixhawk PX4 LRS ELRS S.BUS SBUS CRSF Crossfire Radio GSM SMS LTE LTE-M GPS GNSS LoRa Serial Port FTDI FT232 OGG OPUS Vorbis Speex WAV WinAPI WinSock mbed mbedtls Serialization AES DES 3DES GOST

I am a graduate of two technical universities.Thanks to studying at the University of Technology, I gained knowledge in the field designing and simulating electronic circuits using appropriate software, among others KiCAD, Altium Designer, Multisim or LTspice. In my free time, I work on the design of my own water dispensing system(C,C++,stm32) in the apiary and I expand my knowledge in the field of programming STM32 microcontrollers and designing DC/DC converters. kod : Z9926T537W9811H

Currently I provide software development services of photo and video editing applications for iOS, iPadOS, macOS and visionOS. I offer the development of video and photo editing application from scratch or upgrading the existing app. For my solutions I use Swift and Objective-C programming language. The typical tasks which any video editing app consists are: – Video recording – Video stabilisation when recording – The screen capture at desired FPS – Video editing – Video generation (without source video file) – High FPS, 4K and HDR video edit and recording – Frame-by-frame video pipeline processing – Speech to text recognition – Video captioning and subtitles Functions that could be added to the new app or existing app – Reverse video – Crop & resize – Aspect ratio change – Change quality – Trim the video – Subtitles and captions – Stickers over video – Add watermark – Filter effects – Images to video – Audio overlay Let me know whether you have any questions about my solutions, tasks and functions that we could add into your app. Find and download the following apps in the AppStore as a demonstration of proof of experience: – Scrolling Credits Video – SubtitlerKit – Split Video Into Parts – Video Grid Collage _ Besides of video editing software experience, I have the experience in the development, support and maintenance of iOS software that is used by millions of people. I saw all the way how the project grows and turns from a startup to a big company. I understand the problems of both a small startup and a large company. My main services are: – The development of video recording and video editing applications for Apple devices – iOS, macOS, iPadOS and visionOS application development based on SwiftUI and Combine – The support of legacy applications and projects that were done in Objective-C programming language What will you get – Analysis of your problem and task – Working proof of concept in a week or a month depending on the complexity – Constant and clear communication on work and issues During all the time I had experience with: – Developing of iOS, Mac and MacCatalyst applications – C, C++, Objective-C, Swift – CoreData, SQLite, SQL – GCD, Mulththreading – Core Audio, AudioUnits, AVFoundation, AVKit, AVAudioEngine – AudioKit – GPUImage, Metal, MPS, CoreImage – CallKit, CoreTelephony – CoreText – SwiftUI, Combine – MapKit, MapBox, GoogleMaps – iOS Extensions – Debugging – CocoaPods, Carthage, SPM – JIRA, Trello, Slack, Figma – Scrum, Kanban, Agile – GIT, GitHub, BitBucket – MVVM, MVC – Data structures & Algorithms – Firebase, Testflight – Twilio SDK

Installation and maintenance of Windows 7/8/2003/2008/2012/2016/2019/20222025, Linux, MacOs, VmWare ESXi, vSphere, AWS, Hyper-V, AD, GP, DNS, DHCP, WSUS, Terminal Services, FTP, Mail, Firewall, Exchange, PRTG, pFsense, installation of VPN, Veeam Backup & Replication, Acronis. MS Office. Installation Windows on Hetzner dedicated server/ Configuration of HP, Dell, SuperMicro servers. Dell, Huawei storage systems. Remote work experience, KVM, IPMI, Plesk. Management of equipment and consumable purchases.

🚀 Full Stack Developer | Business Automation & Digital Transformation Specialist Since 2019, I’ve been building full-stack web platforms for startups and growing businesses. Since 2023, I’ve specialized in business automation and digital transformation, helping companies replace manual, fragmented workflows with scalable, automation-first systems that save time, reduce costs, and support long-term growth. I don’t just write code or “build features.” I take time to understand how your business actually operates, identify bottlenecks, redesign workflows, and translate them into clean, reliable web or mobile solutions that work in the real world. From internal dashboards and admin panels to full-scale platforms and MVPs, I handle the full lifecycle: process mapping → system architecture → UX/UI thinking → development → launch → optimization. Alongside client work, I run my own development company, which means I bring both hands-on technical execution and a strong sense of delivery, timelines, and accountability to every project. 💬 How I Work (and Why Clients Choose Me) ✅ Partner mindset, not a task taker I ask the right questions, challenge assumptions when needed, and design solutions aligned with your business goals - not generic templates. ✅ Automation-first thinking My focus is eliminating repetitive work, reducing human error, and connecting systems so your team can focus on what actually matters. ✅ Scalable, maintainable architecture Clean, well-structured, documented code that’s built to grow - not something you’ll need to rewrite in six months. ✅ Ownership & clear communication I’m comfortable taking full responsibility for features or entire projects, with transparent updates and predictable delivery. 🛠 Experience & Use Cases I’ve contributed to 30+ projects across industries including: • Business & Operations Management • Healthcare • Lead Generation • eCommerce & Marketplaces • Booking & Scheduling Platforms • Streaming / OTT • Data Visualization & Dashboards • Education & Logistics Clients typically work with me when they need someone who can: • Build a web application or platform from scratch • Quickly turn ideas and requirements into solid technical solutions • Think beyond MVP toward scalability and long-term growth • Work independently or integrate smoothly into an existing team 👥 I’m a Great Fit If You Are: • A business looking to digitize operations and reduce manual workflows • A startup building an automation-driven MVP or internal system • A founder or operator who wants real digital transformation - not just another developer If you’re looking for a reliable full-stack developer who understands business logic, automation, and product thinking, I’d be happy to discuss your project and see if we’re a good fit.