Having 24 years of experience in handling complex firmware, IoT, web and mobile app based solutions. Worked with Samsung as Lead Engineer for the R&D (Digital Media) and Safeview SL as Product Manager. I have extensive knowledge with Web (Front End and Back End), Mobile Apps (Android/iPhone - Hybrid and Native), IoT and Embedded Software Development. On the technical side, I can handle solutions requiring following skills: 1. Embedded/Firmware software development 2. Backend development using Nodejs, Python/MySQL, MVC frameworks like Django/CodeIgniter/Laravel, developing web services and web APIs, integration of external RESTfull APIs like payment (PayTrace, CyberSource, USAePay, PayPal, Stripe, NMI, PayTrace, Authorize.net etc), accounting (QuickBooks Online/Desktop, Xero, Freshbooks), Twilio, shipping and any other as needed 3. Front end development using HTML5/CSS3, Javascript (custom and libs), JQuery, Bootstrap, Framework7, Angularjs and Reactjs 4. Mobile apps using React Native, Android Native - Kotlin, iOS Native - Swift and IoT apps 5. All AWS related server deployments at AWS, Docker/Containers, Mails and DNS setups 6. Video Streaming platforms Have good communication, documentation and analytical skills and know how to motivate team for the longer-term team bonding.

🏆 I'm a Top-Rated .NET & Full Stack Developer with 15+ years of experience. I've delivered 60+ apps (US/UK/EU) | -45% API latency, +70% faster deploys, 3 legacy monoliths modernized | 100% Job Success, $60K+ earned on Upwork As a .NET Developer, I migrated 3 legacy monoliths to .NET Core microservices, +70% deployment speed 💥 Recent win — as a Full Stack Developer and C# Developer, I rebuilt a logistics platform using .NET Core, Angular and MySQL, cutting order processing time by 55% and lifting client retention by 22%. 🟢 Most business platforms are slow, hard to scale and expensive to maintain. With 8+ years as a .NET Developer, C# Developer and Full Stack Developer, I architect scalable web developer solutions on .NET, Angular, React and Python stacks that turn technical debt into growth 🟢 📩 Send me your project brief — I'll reply with a free technical review within a few hours, covering architecture, performance and security. ⭐️⭐️⭐️⭐️⭐️ "She's an outstanding .NET Developer and Full Stack Developer. Reliable, communicative, and delivers clean, production-ready C# code every time." 🎯 WHY CLIENTS CHOOSE ME AS A FULL STACK DEVELOPER I'm a Full Stack Developer, .NET Developer and C# Developer with full-cycle ownership — from database architecture and API design to pixel-perfect frontends. As a C# Developer, I write clean, testable code following SOLID principles, and as a Full Stack Developer I make sure the entire product, not just one layer, actually works for your users. ✔️ .NET Core & C# — as a .NET Developer and C# Developer: scalable ASP.NET Core APIs, background services, .NET MAUI apps
✔️ Frontend — React, Angular, Vue.js, jQuery, built for speed and clean UX
✔️ Full Stack Development — as a Full Stack Developer, connecting .NET, Node.js and Python backends to JavaScript frontends
✔️ Web Developer Services — as a web developer, WordPress, Laravel and PHP sites alongside custom .NET apps
✔️ Database Architecture — MySQL, SQL Server, API Integration for data-heavy systems
✔️ Cloud & DevOps — Azure, AWS, Docker, CI/CD, supporting .net full stack developer and full stack developer react deployments 📊 RESULTS THAT SPEAK 🔶 Fintech Platform: as a .NET Developer and C# Developer, -60% transaction errors, 99.9% uptime via a full .NET Core rebuild
🔶 E-commerce Marketplace: as a Full Stack Developer, React + .NET Core APIs, +28% checkout conversion, 3x page load speed
🔶 Healthcare SaaS: as a senior .net developer, HIPAA-compliant rebuild, -40% manual admin work ⚙️ TECH STACK — WHAT I ACTUALLY BUILD ✔️ As a C# Developer, I build backend services and APIs in C#, .NET and .NET Core
✔️ As a .NET Developer, I build enterprise systems on .NET Framework, deploy cross-platform apps with .NET MAUI, and ship RESTful APIs with ASP.NET
✔️ As a Full Stack Developer, I build frontend interfaces in React, Angular, Vue.js and JavaScript, and add type safety with TypeScript
✔️ As a Full Stack Developer, I build backend logic in Node.js and Python, and CMS-driven sites in PHP, Laravel and WordPress
✔️ As a web developer, I build responsive layouts with HTML5, CSS 3, Bootstrap and jQuery
✔️ As a Full Stack Developer, I build and manage data layers in MySQL and SQL Server 💼 EVERY PROJECT AS A FULL STACK DEVELOPER INCLUDES ▪️ Clean, well-documented C# and .NET code with automated testing
▪️ Direct communication, just a senior C# Developer / .NET Developer working on your project
▪️ Ongoing support after launch as your long-term Full Stack Developer and .NET Developer partner 🏭 INDUSTRIES Fintech · Healthcare · E-commerce · Logistics · SaaS · Real Estate · EdTech 🔎 ALSO EXPERIENCED AS — EVERY ROLE, PROVEN TWICE ✔️ As a react developer, I build interactive dashboards for SaaS platforms. As a react developer, I also rebuild legacy UIs for speed and scale.
✔️ As a python developer, I build backend APIs and automation scripts. As a python developer, I also ship data-processing pipelines for reporting tools.
✔️ As a java developer, I build backend modules for enterprise systems. As a java developer, I also debug and refactor legacy Java codebases.
✔️ As a blockchain developer, I build and audit smart contracts. As a blockchain developer, I also integrate wallet and token logic into existing platforms.
✔️ As a mobile app developer, I build cross-platform releases for iOS and Android. As a mobile app developer, I also ship post-launch updates and bug fixes.
deployment pipelines.
 🚀 LOOKING FOR A RELIABLE FULL STACK DEVELOPER OR .NET DEVELOPER? 👉 Share your project details and I'll reply with a clear technical plan. Hire a proven .NET Developer, C# Developer and Full Stack Developer who ships secure, scalable, production-ready software — on time, every time. 📅 Last updated: 21.08.2026

I’m a PCB Design Engineer with 12+ years of experience in Altium Designer, specializing in IoT hardware, embedded systems, and power electronics. I design reliable, efficient, and manufacturable PCBs — from concept to final prototype. Over the years, I’ve worked on projects ranging from ESP32/STM32-based IoT devices to high-efficiency Medical Devices, Motor drivers, and FPV Drone boards. My focus is on performance, signal integrity, and low power loss — ensuring every design is optimized for real-world conditions. 💡 What I Offer PCB schematic capture and multilayer layout (Altium Designer) IoT and embedded boards using ESP32, STM32, and Raspberry Pi Design verification, simulation (Proteus/Multisim) Gerber, BOM, and fabrication-ready documentation 🎯 Why Work With Me ✔️ Strong background in electronics design for commercial and defense projects ✔️ Focused on clear communication and timely delivery ✔️ Deep understanding of DFM (Design for Manufacturing) and prototyping Let’s collaborate to turn your idea into a high-performance, production-ready PCB.

RF & Microwave Engineer | RF Design, Calibration & Automated Testing RF & Microwave Engineer with strong hands-on experience spanning RF design, electromagnetic simulation, and calibration-grade RF testing of high-frequency systems. I specialize in bridging theory, simulation, and real-world measurements to deliver accurate, repeatable, and production-ready RF solutions. 🔹 RF Design & Simulation Electromagnetic design and optimization of RF cavities, waveguides, coupling structures, antennas, and passive RF components S-parameter–driven design validation using CST Microwave Studio, HFSS, and Keysight ADS Mode analysis, impedance matching, coupling control, and EM-to-measurement correlation 🔹 RF Testing & Calibration End-to-end RF verification and calibration of signal generators, spectrum analyzers, VNAs, and power sensors Measurements covering output power accuracy, phase noise, harmonics & spurs, TOI, VSWR, frequency & level settling time Digital modulation analysis including QAM/QPSK, EVM, ACLR, and spectral regrowth 🔹 Test Automation & Productivity Automation of RF measurements using Python/SCPI, HP/Agilent/Keysight VEE Pro, and NI LabVIEW Development of repeatable test frameworks reducing manual test time by 50–70% Clean, documented workflows suitable for R&D validation, production testing, and calibration environments I can support projects from RF design and simulation through lab testing, calibration, and automated verification, ensuring your RF system meets performance, accuracy, and compliance requirements.

Web developer with 10+ years of professional experience, successfully freelancing for over seven years. I use Python and Django for most of my work. I have also worked extensively with WordPress in the past, though I rarely do so now. Backend work is my primary focus (API, DB, application logic, CI), but I'm also adept at frontend tasks. When it comes to desktop apps, C# is my language of choice for Windows and Java for cross-platform apps. In all of my projects I put code quality very high on my list of priorities, as well as following standards and best practices. "Readability counts"

Over the past 10 years, I've helped startups, enterprises, and growing businesses build production-grade AI systems, earning Top 1% on Upwork. I hold an MS in Computer Science from Stanford University, specializing in Artificial Intelligence, with research in Information Retrieval, NLP, and Machine Learning. ✅ 200+ AI projects completed ✅ Top 1% on Upwork ✅ $700k+ earned as a Freelancer ✅ $1M+ earned through our Upwork Agency I specialize in Generative AI, AI Agents, AI Automation, Workflow Automation, LLMs, RAG, Machine Learning, NLP, Computer Vision, Data Science, Business Intelligence, Voice AI, Multi-Agent Systems, and Enterprise AI. Core Expertise • Generative AI & LLMs: OpenAI GPT-4o/o1/o3, Claude, Gemini, Llama, Mistral, Qwen, Grok, HuggingFace, Together AI, Ollama, Groq • AI Agents: LangGraph, LangChain, CrewAI, AutoGen, OpenAI Agents SDK, DSPy, LlamaIndex, Semantic Kernel, MCP, MemGPT • AI Automation: n8n, Make, Zapier, Pipedream, APIs, Webhooks, Celery, Redis, Temporal, Human-in-the-loop workflows • Enterprise RAG: Pinecone, Qdrant, Weaviate, ChromaDB, FAISS, pgvector, Neo4j, OpenSearch, Elasticsearch • Voice AI: Whisper, Deepgram, ElevenLabs, Retell AI, Bland AI, Twilio, LiveKit, Pipecat, Tavus, HeyGen • Computer Vision: OpenCV, YOLO, OCR, Stable Diffusion, Flux, ComfyUI, multimodal AI • Machine Learning: PyTorch, TensorFlow, Scikit-learn, XGBoost, forecasting, anomaly detection, recommendation systems • Full-Stack AI: Python, FastAPI, Django, Flask, Node.js, TypeScript, React, Next.js, PostgreSQL, GraphQL • Cloud & MLOps: AWS, Azure, GCP, Docker, Kubernetes, MLflow, BentoML, CI/CD • Integrations: Salesforce, HubSpot, Slack, Google Workspace, Microsoft Graph, Stripe, Twilio, Notion, Airtable, OAuth & REST APIs Selected Projects • Enterprise Legal AI Platform with contract intelligence, semantic search & RAG • Multi-Agent AI Automation Platform integrating CRM, email, documents, APIs & business workflows • AI Trading & Forecasting Platform using ML and time-series models • Insurance Intelligence Platform for litigation analytics • Enterprise Sustainability Analytics Platform • Public Health Monitoring System improving operational efficiency and real-time reporting Why Clients Hire Me ✔ Production-ready AI architectures ✔ Business-first automation strategy ✔ End-to-end delivery from architecture to deployment ✔ Clear communication and long-term partnership If you're building AI Agents, AI Employees, Multi-Agent Systems, Enterprise RAG, Voice AI, Internal Copilots, Workflow Automation, or production LLM applications, I'd be happy to help bring your product to production.

I help companies, researchers, and engineering teams solve problems in photonics, LiDAR, optical communication, optical sensing, FPGA control, and MATLAB/Python simulation. I have hands-on experience in both industry and academia, including optical measurement instruments, coherent optical communication, free-space optical communication, quantum communication, OTDR/OFDR, FMCW/ToF/AMCW LiDAR, and FPGA/DSP-based control systems. I can help you with: MATLAB or Python simulation for optical systems LiDAR signal processing and system modeling FMCW, ToF, AMCW, OTDR, OFDR, and fiber sensing analysis Coherent optical communication and DSP simulation BER, SNR, phase noise, frequency noise, and modulation analysis FPGA/Verilog/VHDL design for timing control, UART, SPI, and signal processing Debugging and improving existing MATLAB, Python, or HDL code Technical reports, research review, patent/market technology analysis Japanese / English / Chinese technical documentation What makes me different is that I understand both the physics and the implementation. I do not only write code. I connect optics, electronics, signal processing, noise, hardware constraints, and real measurement issues. Typical projects I can support: “I need a MATLAB simulation for an optical communication system.” “I want to model an FMCW LiDAR system and analyze the signal.” “My optical sensing data is noisy and I need help interpreting it.” “I need Verilog code for UART/SPI/timing control.” “I need a technical expert to review a photonics or LiDAR technology.” “I need someone who can explain complex optical technology clearly.” I have worked in Japan, Singapore, and international research environments, and I can communicate fluently in English, Japanese, and Chinese. I am especially suitable for projects that require deep technical understanding, clean simulation code, and clear communication.

25+ years in Software Development Available for 40-60 hrs./wk. Excellent references from CEOs of the companies. Bringing products to market: inception, spec, architecture, implementation, testing. Seeking for software development projects in the following areas on Windows Platforms: - Recent successful GPT-3/3.5/4 API experience with C#, DALL-E interface, and OpenAI Whisper. - Experience of developing RAG Web Service enabling chatting with private corpus of documents, based on Azure Cognitive Search SDK, Azure OpenAI API and Azure Cosmos Vector DB for vector, hybrid, and semantic search. Segmenting Word/PDF/Excel/CSV/Text documents, embeddings, and ingestion. - Worked with ML.NET in VSTO Outlook Add-In environment for email classification. - Experience with Text-To-Speech and Speech-To-Text using AWS, Azure, Google, Eleven Labs, and other vendors. Experience with Google Voice Services, including Diarization (recognition of different speakers and designation in the transcript), and Medical Transcription. Able to produce STS (Speech-to-Speech) application - interacting with ChatGPT over microphone and speakers. Recent Development Experience of TTS with OpenAI. - AI Training of basic GPT models using fine-tuning, and embedding techniques with vector databases, such as Pinecone, Qdrant, and Milvus APIs. - OpenAI Completion and Embeddings API, GPT-3/3.5/4, Whisper API for Transcribing and Translation - Azure Semantic Kernel, Azure Data Explorer (ADX), Azure Blob Storage, Azure Analytical Services. - AWS Text-To-Speech, AWS Storage - Web Services: REST-API, ASP.NET Framework and Core, WCF Web Services, Microservices - Azure Active Directory Authentication from Desktop Applications in C# - Desktop applications with C#/.NET Framework/.NET Core, WinForms, WPF, DevExpress - Microsoft Office VSTO/COM Add-Ins for Outlook, Excel, Word, and PowerPoint - Client/Server Systems: Sockets and high-level protocols, such as HTTP, FTP, MQTT - Windows Services - Microsoft Dynamics 365 - Hardware Interface: USB/RS232/RS485 Technologies and Frameworks: - Languages: C#, C/C++, Python, MicroPython, XML, JSON - Databases: SQL, SQLite, MySQL, Entity Framework 6/Core and LINQ. - Networking: Sockets (.NET and Winsock), REST API, WCF, HTTP, FTP, MQTT, packet-level TCP/IP, - Serial (RS232/RS485), MODBUS. - IDE: Visual Studio 2010 through 2022 - Office Add-Ins: VSTO Add-ins for Outlook, Excel, Word, PowerPoint. Add-In Express Framework. - VOIP: PJ SIP Stack with DBUS, Asterisk, Open Phone Abstract Library (OPAL) - Active Directory/LDAP/ADSI - Monte Carlo Simulations in C# - Linux: C/C++ and Python with MQTT Development on Ubuntu and Raspbian. - AES256 Encryption, Monte-Carlo Simulations, SHA256, PGP/GnuPG PKI (Public Key Infrastructure) Application binaries signing (Authenticode), Security Certificate generation in code based on CA. - Installers with Advanced Installer, Deployment strategies. - Product Licensing

I am an electronic Engineer born in the city of Pigüé (Bs. As. Argentina), I started my studies with a solid technical background in high school, later, continued my studies in Lanús (Bs. As. Argentina) as an Audiovisual technician, at the end of the course, always willing to go for more, I began my career as an electronic Engineer in the city of Buenos Aires, finishing it in Bahía Blanca while working as a sound Engineer in the most prestigious shows of the industry. The experience as a sound Engineer allowed me to face the most diverse difficulties in the field that should be solved as quickly as possible, which formed me as a professional with a high degree of adaptability. During my studies as an engineer, I was a winner twice (end of course and degree projects) at the Argentine Embedded Systems Symposium and recognized by the Honorable Deliberative Council of Bahía Blanca as the highest grades of the year 2019. My time at Penta company allowed me to grow professionally and acquire a lot of experience in the development of projects that integrate mechanics and electronics, to be clear about the difference between a prototype and the development of a product, and to grow the necessary skills to work as a team. We develop our own methods and algorithms and publish at the IEEE International Conference on Industrial Technology (ICIT)(2020). “A Signal Processing Method for Metal Detection Sensitivity Improvement in Balance-Coil Metal Detectors for Food Products”. I am currently working as a firmware and hardware Engineer for the control of electric motors at the Palta Tech company in the city of Punta Alta (Bs.As., Argentina).

I have a background in electrical and electronics engineering and I have extensive skills in Simulation and programming. I have had vast experience in the creation, configuration, and maintenance of both Software and Hardware. I am industrious and I have a key focus on both the quality and timeliness of my work and the work that I deliver. I always try and maintain high working standards as well as a good work ethic. Having been a freelancer for more than 6 years I have had the opportunity to take on a wide spectrum of projects, which have challenged me and I have grown through that. I take a lot of pride in all the clients I have had the chance to work with. My specialty lies in : 1. ✅Signals and systems. Having worked at a telecommunication company I was able to gain skills in power systems and the various processes that come into play when it comes to long-term work and actual implementation of communication equipment. From setting up BTS(Base Transceiver stations) to the gradual rolling out of fiber optic cable to enhance internet connectivity. 2. ✅Machine learning and Data analytics: Mostly based on Matlab and Google's tensor flow. I have worked on real-world problems and I have worked with various datasets, which all aim to derive useful information and unearth patterns aimed at improving the end result and getting solutions to existing problems. 3. ✅Embedded systems and hardware architecture. Having had a solid background in electrical and electronics engineering, I especially loved digital systems logic and digital signal processes. And through that, I have learned how to operate FPGAs(Field Programmable Gate Arrays) and I am proficient in VHDL (Very High Speed integrated circuit Hardware Description Language). Through Matlab, I am able to successfully design and come up with the VHDL code to support a customized hardware design with a turnaround time of 7 days. 4. ✅ MATLAB and Simulink simulations. As an engineer, Matlab has been crucial in successfully designing systems and verifying principles as well as carrying out research. I have worked on a wide range of projects ranging from Power systems design to control systems and even digital signal processing among others. Both in the academic and in industrial automation Matlab has been remarkably powerful and ideal. Why am I a good fit for your project? Having worked with a wide range of clients and has been on the platform long enough I have gained not just a wealth of experience I am also confidence and very professional in the quality of work delivered. This is evident based on my reviews from the clients I have had the pleasure of working with along with my JSS score. I am a good communicator and I believe having a great working relationship with my clients starts with being a good communicator.