RTOS Programmers For Hire
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Sponsored Freelancers
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Hire helloi9
Engineering-focused technology person. delivering end-to-end software, embedded systems, networking, cloud, and enterprise architecture solutions. We help businesses transform complex technical challenges into scalable, secure, and production-ready systems.Engineering-focused technology person. delivering end-to-end software, embedded systems, networking, cloud, and enterprise architecture solutions. We help businesses transform complex technical challenges into scalable, secure, and production-ready systems. less -
Hire abela399
As a senior Full Stack developer, I specialize in building production-ready web, mobile, and AI-powered systems. I work independently and handle all development myself, from system design to delivery, ensuring consistency, quality, and accountability. My focus is on creating reliable backends, clean and maintainable...As a senior Full Stack developer, I specialize in building production-ready web, mobile, and AI-powered systems. I work independently and handle all development myself, from system design to delivery, ensuring consistency, quality, and accountability. My focus is on creating reliable backends, clean and maintainable frontends, scalable e-commerce platforms, and practical AI solutions that directly support business operations and growth. Core Expertise: - Full-Stack Web Development • Frontend: JavaScript, TypeScript, React, Next.js, Vue.js, Nuxt.js, Tailwind CSS, HTML, CSS 3 • Backend: Node.js, NestJS, PHP (Laravel), Python (FastAPI, Django), REST APIs, GraphQL • Databases: PostgreSQL, MySQL, MongoDB, SQLite • Cloud & DevOps: AWS, Google Cloud, Azure, CI/CD, Docker - AI & Automation Solutions • AI-powered assistants, chatbots, and automation systems using OpenAI APIs and modern LLMs • Design and implementation of RAG (Retrieval-Augmented Generation) pipelines for knowledge-based AI systems • Integration of LLMs with databases, vector stores, APIs, and existing business platforms • Intelligent data processing, document understanding, and decision-support tools - E-commerce & Shopify • Shopify theme customization and custom app development • Shopify Admin API, Storefront API, webhooks, and third-party integrations • Custom checkout flows, subscriptions, payments, and fulfillment logic • Experience with Magento, WooCommerce, BigCommerce, and Prestashop • Performance optimization, scalability, and long-term maintainability - Mobile Development • Android development (Java, Kotlin) • iOS development (Swift, Objective-C) • Cross-platform mobile apps using React Native and Flutter • Mobile apps backed by scalable APIs and cloud infrastructure - Data Engineering & Automation • Web scraping and crawling (Python, Selenium, Scrapy, BeautifulSoup) • API integrations, background jobs, and automation services Working Approach: I am comfortable joining existing codebases, improving architecture, resolving technical debt, and stabilizing systems for production. I prioritize clear communication, clean code, and solutions that are easy to maintain and scale over time. My goal is to deliver systems that are reliable, secure, and aligned with real business needs. less -
Hire hardsoftfreelan
Arduino, Bill of Materials (BOM) Analysis, Bill of Materials (BOM) Evaluation, Bill of Materials (BOM) Optimization, C ProgrammingElectronic hardware design. Shematic, PCB layout, microcontrollers, MPU, firmware. 14 years of experience.Electronic hardware design. Shematic, PCB layout, microcontrollers, MPU, firmware. 14 years of experience. less -
Hire natesd
✅Python✅PHP✅Scraping✅ Automation ✅Full-Stack ✅Mobile✅Web3✅Excel + Power BI I'm a Staff-level Software Engineer with 20+ years of experience building complex systems across startups and global companies like Cisco Systems and Qualcomm. I specialize in designing and delivering production-grade systems end-to-end - from...✅Python✅PHP✅Scraping✅ Automation ✅Full-Stack ✅Mobile✅Web3✅Excel + Power BI I'm a Staff-level Software Engineer with 20+ years of experience building complex systems across startups and global companies like Cisco Systems and Qualcomm. I specialize in designing and delivering production-grade systems end-to-end - from low-level real-time infrastructure all the way up to full-stack web and mobile applications. Most developers focus on one layer. I bring deep systems expertise + full-stack execution, which means I can take ownership of your entire product. ⚡ What I Do 🔹 Real-Time & Performance-Critical Systems Low-latency applications, streaming, audio/video, and systems that must perform under pressure. 🔹 AI Integration (Production, Not Hype) RAG systems, speech processing, and integrating AI into real-world products. 🔹 Full-Stack & Mobile Development Modern web apps and cross-platform mobile apps when needed—built on solid backend architecture. 🔹 System Architecture (0 → Scale) I design systems that are maintainable, scalable, and ready for real users—not just prototypes. 🏆 Experience Highlights Technical Lead — Cisco Systems ✔ Led real-time audio and ML-powered systems used in Webex ✔ Delivered cross-platform production systems (desktop + mobile) ✔ Owned architecture from design to deployment Senior Software Engineer — BabbleLabs ✔ Built real-time AI speech systems from scratch ✔ Developed system-level integrations across OS environments 🧩 Technical Breadth Systems & Backend: C/C++, Python, Go, Node.js, distributed systems, microservices Full Stack: React, modern frontend frameworks, REST APIs Mobile: Cross-platform + native integration experience AI / Data: LLMs, RAG, speech processing, real-time ML Platforms: Linux, macOS, Windows 🎯 What Makes Me Different Most freelancers: -Build features I: 💪Design systems that last 💪Solve complex engineering problems 💪Own projects end-to-end 📩 Let’s Talk If you need someone who can design, build, and scale your system the right way, send me a message - I'll help you define the best approach before we start. less -
Hire cmsivolella
⭐️⭐️⭐️⭐️⭐️ Embedded Systems Engineer with over 4 years of industry experience delivering complete, production-ready solutions in hardware design, firmware development, and product integration. As a freelance engineer, I’ve collaborated with startups and established companies to bring over 20 products to market...⭐️⭐️⭐️⭐️⭐️ Embedded Systems Engineer with over 4 years of industry experience delivering complete, production-ready solutions in hardware design, firmware development, and product integration. As a freelance engineer, I’ve collaborated with startups and established companies to bring over 20 products to market across the consumer, industrial, and medical sectors. I work across the full product lifecycle — from early specification and prototyping to manufacturing support and field testing. My expertise spans custom PCB design, RTOS-based and bare-metal firmware, and embedded Linux systems, using technologies like Altium, STM32, nRF52, ESP32, FreeRTOS, Zephyr, and more. I also support clients with architecture decisions, hardware/firmware co-design, and design optimization for cost, manufacturability, and reliability. Relevant Skills: ● Hardware design and PCB development (Expert) - Custom PCB design: Rigid, Flex and Rigid-flex technologies. - EDA tools: Altium Designer, OrCAD and KiCAD. - System-level design and project planning. - Schematic capture and library management. - Multilayer layout design following IPC and industry best practices. - High-speed digital, mixed-signal, RF/wireless, and power electronics design. - Interfaces: DDR, LVDS, HDMI, SATA, USB, Ethernet. - Circuitry: DC-DC converters, MCU/MPU/SoCs, ADCs/DACs, sensors, etc. - Familiar with PCBA manufacturing/assembly requirements and DFM/DFT rules. ● MCU Firmware programming (Advanced) - Languages: C, C++, Rust, ARM Assembly. - IDEs and tooling: Eclipse-based, VSCode, bare-metal toolchains, Make/CMake. - Firmware architectures: Bare-metal, RTOS, HAL/LL APIs. - RTOS: FreeRTOS, Zephyr (hands-on experience). - Ecosystems: STM32 (HAL/LL), Espressif (ESP-IDF), Nordic (nRF SDKs). - Version control: Git and SVN. - Familiarity with MISRA C/C++ standards - Architectures: ARM Cortex-M/R, Xtensa (ESP32). - Driver development: I2C, SPI, UART, ADC, PWM, external ASICs. - Protocols & stacks: BLE, LoRaWAN, HTTPS, MQTT. ● Embedded Linux development (Intermediate) - Linux for custom hardware platforms (MPUs). - Yocto Project: Linux distribution configuration and build. - Device tree and kernel driver development (sensors, ASICs, etc.).- Application development in C, C++, Python, Rust. - ARM Cortex-A architecture familiarity. ● FPGA & HDL Development (Intermediate) - FPGA/SoC development using Verilog, SystemVerilog, and VHDL. - Platforms: Xilinx Spartan-7, Zynq-7000; Intel (Altera) Cyclone, MAX series. - Custom IP design and hardware/software integration. - Familiarity with AXI/AMBA bus architectures. If you’re interested in working with me, I’m available via Freelancer and will always answer your questions or requests promptly. Thank you for your time and have a great day. less -
Hire fedoraus
fedoraus fedoraus
$35 USD / hour
AI/LLM, 3D Web and Mobile, Game Design/DevelopMoldova, Republic ofPython AI, Full-Stack, UI/UX, Game Development, Automation & 3D Design Developer | Building Intelligent, Scalable, and Interactive Digital Solutions Looking for a developer who can combine AI, modern web/mobile development, game development, UI/UX design, SEO, automation, and 2D/3D design into one complete solution?...Python AI, Full-Stack, UI/UX, Game Development, Automation & 3D Design Developer | Building Intelligent, Scalable, and Interactive Digital Solutions Looking for a developer who can combine AI, modern web/mobile development, game development, UI/UX design, SEO, automation, and 2D/3D design into one complete solution? I help businesses transform ideas into powerful digital products with a balance of engineering, design, and innovation. 🔹 What I Do AI & Machine Learning • Predictive analytics and forecasting models • NLP systems, chatbots, and LLM integrations • Computer vision (OCR, object detection, face detection) • RAG systems and AI knowledge bases • Workflow automation and AI agents Web & Mobile Development • Frontend: React.js, Next.js, Vue.js, Nuxt.js • Backend: Node.js, Python (Flask, FastAPI, Django), PHP • Mobile: React Native, Flutter • Full-stack architecture, REST APIs, GraphQL • Authentication, payment systems, WebSockets • Cloud deployment, Docker, performance optimization UI/UX Design & SEO • Modern UI design for web and mobile apps • UX flows, wireframes, and design systems • Interactive prototypes (Figma) • Landing pages and dashboards • Technical SEO and Core Web Vitals optimization • GA4, GTM, structured data, and search visibility improvements 2D/3D Design & Visualization • AutoCAD for technical drafting • SolidWorks for product and mechanical design • 2D/3D modeling and rendering • Product visualization and architectural design • Interactive 3D web experiences with Three.js • Animations and visual asset optimization Game Development (2D & 3D) • Unity game development • Unreal Engine game development • Pixi.js browser games • Casino game development • Physics systems, shaders, animations • Multiplayer systems and optimization • Cross-platform game deployment Automation & Scraping • Workflow and business process automation • Browser and application automation • API integrations and data pipelines • Web scraping and crawler systems • Data extraction, transformation, and distribution Why Work With Me? ✔ Strong multi-domain expertise (AI + Full-Stack + Design + Games) ✔ Product-focused development with scalable architecture ✔ Clean, maintainable, and performance-optimized code ✔ Design-driven approach for better user experience ✔ Fast communication and transparent workflow ✔ Long-term support and reliable delivery I have built AI platforms, SaaS products, automation systems, mobile applications, game systems, and advanced 3D visual experiences. Whether you need an AI-powered solution, a scalable web/mobile app, a game, automation workflows, SEO optimization, or CAD-based product design, I can help you build it efficiently and professionally. Let’s build something powerful together. 🚀 less -
Hire hakanulusoy
I have 7 years experiance in my bussiness. I graduated from ITU electronic(bec). Problem solver one of my best tags. Some keywords that I am professional on: Raspberry Pi Python Embeded systems Microcontrollers,ARM, STM32, C8051. UART,I2C,I2S,SPI,RS232,RS485. PMBus, SMBus. More than 4 years I am working for a company...I have 7 years experiance in my bussiness. I graduated from ITU electronic(bec). Problem solver one of my best tags. Some keywords that I am professional on: Raspberry Pi Python Embeded systems Microcontrollers,ARM, STM32, C8051. UART,I2C,I2S,SPI,RS232,RS485. PMBus, SMBus. More than 4 years I am working for a company working on transmitters and broadcasting. I am team leader on R&D department. We have a break as company because of Covid-19. I am going to glad to work with someone who need professional help. less -
Hire rashidamjad
Rashid Tech Solutions is a systems-focused engineering and development company with 5+ years of hands-on experience across software, cloud, automation, electronics and embedded systems. We build reliable solutions where software, hardware and cloud technologies work together smoothly. Core Expertise Web, SaaS &...Rashid Tech Solutions is a systems-focused engineering and development company with 5+ years of hands-on experience across software, cloud, automation, electronics and embedded systems. We build reliable solutions where software, hardware and cloud technologies work together smoothly. Core Expertise Web, SaaS & UI/UX: PHP, Python, JavaScript, TypeScript, React, Node.js, Laravel, Django, Next.js, .NET, SQL, WordPress, Webflow, Wix, responsive websites, dashboards, portals, APIs and UI/UX. eCommerce & Payments: Shopify, WooCommerce, Magento, PrestaShop, Stripe, PayPal, subscriptions, checkout, shipping, inventory and ERP/accounting integrations. Mobile & Desktop Apps: Android, iOS, Flutter, React Native, Python, .NET/WPF, Electron.js, APIs, databases and integrations. Cloud & DevOps: AWS, Azure, GCP, Docker, Kubernetes, CI/CD, GitHub, GitLab, Linux, Windows Server, Nginx, Terraform, Ansible, VPS, monitoring, backups and security. Automation & Integrations: Zapier, n8n, Make.com, Power Automate, Airtable, Brevo, Stripe automation, APIs, webhooks, bots, CRM automation and data sync. Enterprise Solutions: Odoo, Zoho, Salesforce, Dynamics 365, SharePoint, Power BI, Power Apps, Microsoft 365, CRM/ERP, Business Intelligence and dashboards. Accounting, Payroll & Excel: QuickBooks, Xero, payroll, invoicing, Teams integrations, Excel, VBA, Power Query, dashboards, financial models, reporting and API/database integrations. Electronics, PCB, Embedded & IoT: PCB design/layout, schematics, firmware, STM32, ESP32, Arduino, Raspberry Pi, ARM, RTOS, I2C, SPI, UART, BLE, WiFi, MQTT, NFC, LoRa, Zigbee and RF. PLC, SCADA & Industrial Automation: PLC, SCADA, HMI, instrumentation, motor/control systems, robotics, machine vision, motion control and equipment integration. Mechanical CAD/CAM & CNC: SolidWorks, Fusion 360, AutoCAD, CATIA, Siemens NX, Mastercam, 3D CAD, assemblies, enclosures, sheet metal, DFM, CNC, toolpaths and G-code. AI & Computer Vision: Generative AI, LLMs, AI agents, chatbots, Machine Learning, TensorFlow, OpenCV, OCR, object detection, image recognition and video processing. Blockchain & Trading: Smart contracts, DApps, Ethereum, BSC, Polygon, Solana, MT4/MT5, MQL4/MQL5, TradingView, Pine Script, Binance, broker APIs, EAs and trading bots. Marketing & Automation: Google Ads, conversion tracking, Google Analytics, technical SEO, YouTube optimization, TikTok content, video editing, Brevo, HubSpot, Zoho, Zapier, Make.com, Airtable, email campaigns and lead workflows. Networking & Communications: VPN, firewall, SSL, DNS, Active Directory, OpenVPN, VoIP, SIP, Asterisk, PBX, WebRTC, virtualization and system administration. Team & Delivery: Our multidisciplinary team covers software, cloud, electronics, embedded systems, automation and engineering. I personally oversee communication, technical direction and delivery. Post-Delivery Support: Documentation, fixes and ongoing support are available after handover. less -
Hire sekai1116
Senior Full-Stack, Mobile, and AI Engineer with extensive experience designing and delivering modern web applications, cross-platform mobile apps, and AI-powered solutions. I specialize in building scalable, high-performance software that helps startups, agencies, and enterprises transform ideas into production-ready...Senior Full-Stack, Mobile, and AI Engineer with extensive experience designing and delivering modern web applications, cross-platform mobile apps, and AI-powered solutions. I specialize in building scalable, high-performance software that helps startups, agencies, and enterprises transform ideas into production-ready products. My expertise covers the complete development lifecycle—from product planning and system architecture to implementation, deployment, optimization, and long-term maintenance. I focus on clean architecture, intuitive user experiences, scalable backend systems, and AI-driven automation. Core Expertise ✅ AI Development - OpenAI, GPT, Claude, Gemini API integration - AI chatbots and virtual assistants - Retrieval-Augmented Generation (RAG) - AI workflow automation - LangChain & LlamaIndex - Python automation - Prompt engineering - AI-powered business applications ✅ Mobile Development - Flutter - FlutterFlow - React Native - Dart - Firebase - Cross-platform iOS & Android development - App Store & Google Play deployment ✅ Frontend Development - React.js - Next.js - Vue.js - TypeScript - JavaScript - Tailwind CSS - Bootstrap - Responsive UI/UX - Modern component architecture ✅ Backend Development - Node.js - Express.js - Laravel - PHP - REST APIs - GraphQL - Authentication & Authorization - Microservices - Scalable API development ✅ Database Development - PostgreSQL - MySQL - MongoDB - Firebase Firestore - Supabase - Redis ✅ Cloud & DevOps - AWS - Firebase - Vercel - DigitalOcean - Docker - CI/CD - Server deployment - Performance optimization ✅ APIs & Integrations - Stripe - PayPal - Twilio - Google APIs - Firebase Services - Third-party API integration - Payment systems - Authentication providers I build reliable, scalable, and maintainable software solutions with a strong emphasis on clean code, performance, security, and long-term business value. Whether it's an AI-powered SaaS platform, a modern web application, or a cross-platform mobile app, I deliver production-ready solutions that are built to scale. less -
Hire jb095
💡 About Me Hello, Everyone! I am an embedded systems engineer, PCB designer, and firmware developer with over 10 years of professional experience. I provide complete, end-to-end solutions for a wide range of electronic device designs, supporting clients from initial concept and schematic design to PCB layout,...💡 About Me Hello, Everyone! I am an embedded systems engineer, PCB designer, and firmware developer with over 10 years of professional experience. I provide complete, end-to-end solutions for a wide range of electronic device designs, supporting clients from initial concept and schematic design to PCB layout, prototyping, assembly, and full system testing. I have strong expertise in high-speed PCB design, including PCIe and DDR4 routing, as well as precise impedance matching for reliable performance at high frequencies. I also specialize in RF and antenna design for modern IoT devices, ensuring optimal signal integrity and system efficiency. In addition, I have deep experience in ultra-low power design, achieving microamp and sub-microamp current consumption for battery-operated and wearable systems. I specialize in firmware development for LTE-GPS-LoRa-BLE-based embedded systems (nRF52 series), including low-power optimization and high-precision sensor acquisition. My focus is on delivering robust, production-ready solutions with high reliability and performance. 🔥 Main Skills 👉Embedded Systems 👉Schematic Circuit Design(Low Power consumption Design) 👉Firmware Development(All Microcontrollers-STM32, TMS320, ESP32, FPGA, nRF52, Raspberry PI) 👉PCB Design(High speed signal routing, PCIe, DDR4, 18 multi-Layers Design, RF antenna Design,) using Altium Designer, KiCad, EasyEDA, Fusion 360(No problem in DFM-JLCPCB) 👉IoT with nRF52(BLE), LoRa(for example, SX1262), LTE(SIM card interface), GPS and other variety of sensors 🛠️Tools & Technologies: 👉 nRF5 SDK / nRF Connect SDK 👉SEGGER Embedded Studio + J-Link debugging 👉 C/C++ (bare-metal & RTOS) 👉 BLE GATT, LTE AT commanders, custom wireless protocols 👉SPI / I2C / UART / ADC integration 👉Low-noise measurement systems (nA level) 👉STM32CubeIDE, Cube MX, Keil, CCS, Arduino, ... 👉MQTT, Free RTOS, Zephyr RTOS 🚀 I can support your project from concept to production. less
