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Full Stack AI SaaS Engineer | Building Cloud-Native, AI-Driven SaaS Platforms | Java/Spring Boot, LLMs, AWS & GCP, React, Next.js, Flutter I’m Shahzad, a Certified Java Architect with 10 + years of experience building scalable, high-performance SaaS applications, now focused on integrating AI and automation into modern cloud products. I’ve engineered AI-powered SaaS platforms that combine conversational intelligence, LLM pipelines, and serverless cloud infrastructure. My passion is turning complex workflows into simple, intelligent, user-friendly applications that scale globally. ------------------------------------------------ What I Build: AI-Driven SaaS Products: Multi-tenant cloud apps powered by LLMs (GPT, Claude), RAG, and custom ML APIs Conversational & Voice AI Agents: Twilio + n8n + GPT workflows for 24/7 automation (healthcare, enterprise) Data Intelligence Apps: predictive analytics, anomaly detection, recommendations, and real-time dashboards Cloud-Native Architectures: Java/Spring Boot microservices, REST/GraphQL APIs, and event-driven backends ------------------------------------------------ Core Stack: Backend & Cloud: Java (8 → 25), Spring Boot 3, AWS (Lambda, S3, RDS), GCP (BigQuery, Vertex AI), Docker, Kubernetes AI/ML: Vertex AI, OpenAI API, BigQuery ML, Python (NumPy, Pandas, Scikit-learn), RAG, LLM Integration Frontend: React, Next.js, TypeScript, Tailwind, Flutter (for cross-platform mobile apps) Integrations: Twilio, Stripe, Shopify, BigCommerce, REST/SOAP APIs, Kafka, RabbitMQ ------------------------------------------------ DevOps & Data: CI/CD pipelines with GitHub Actions & Jenkins Cloud monitoring & observability (CloudWatch, GCP Logging) SQL (PostgreSQL, MySQL) & NoSQL (MongoDB, Redis) ---------------------------------------------------- Certifications: Oracle Certified Java Programmer (2022) AWS Certified Developer – Associate (2023) Amazon Machine Learning Specialty (2023) Spring Boot 3 & Spring 6 Architect (2020) SAS Programming Essentials (2023) ------------------------------------------------ Let’s Build Something Smart: Whether you’re launching an AI-powered SaaS platform, a voice or chat agent, or a data-driven product, I can help you design and deliver a system that’s intelligent, scalable, and future-ready.

👉 Successfully generated over $1M💰in project revenue, working with 100+ satisfied clients 🌟 and earning an average 5-star rating. I pride myself on delivering results with a 95% on-time completion rate ⏱️, ensuring high-quality outcomes and client satisfaction at every step. ✅Tech Skillset: • Main Languages: Python, JavaScript/TypeScript. • Frameworks/Technologies: Django, Flask, FastAPI, React, Next.js, Express.js, Node.js, Prisma, React Native, Docker, Selenium, Pydoll. • Cloud: AWS, GCP (Google Cloud), DigitalOcean, Kubernetes. • Databases: Experienced with PostgreSQL, MongoDB, Firebase, and MySQL. • AI: PyTorch, HuggingFace, OpenCV, Spacy, Scikit-learn, Pandas • Other: SEO, Copywriter, Figma, Photoshop, Zapier ✅Biggest accomplishment: From A to Z, I managed to turn an idea into a commercialized product with 10 000 monthly active users, handling the direction for the marketing/sales and engineering on my own. Check out uNotes on my portfolio for more details or check the app at unotes.net ✅Soft Skills: • Patience and always love to keep things positive with good energy (no, seriously, I love giving great experiences to anybody who works with me) • Product Ownership (working in startups + building my startup + the years of developing experience helps me understand user interactions with a product) • Sales (managed to close high ticket items of over 10K+ a month) • Designer intuition (for example, notice how everything but the portfolios on my profile use green colors to match the Upwork aesthetic; these details can go a long way when making a product!) ✅Interests / Hobbies: • Retro Video Games • Soccer & Volleyball • Social Gatherings • Video & Music Editing • Working Out • YouTube Content Creator

Viktor Pogrebniak is a 𝗦𝗲𝗻𝗶𝗼𝗿 𝗔𝗜/𝗠𝗟 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 with extensive experience developing production software and intelligent systems across computer vision, machine learning, GPU computing, and data engineering. He combines strong Python, C++, and CUDA expertise with practical experience in designing, optimizing, and delivering complex, performance-critical solutions. 👍 𝗖𝗹𝗶𝗲𝗻𝘁 𝗙𝗲𝗲𝗱𝗯𝗮𝗰𝗸 - 𝘝𝘪𝘬𝘵𝘰𝘳 𝘪𝘴 𝘢 𝘨𝘳𝘦𝘢𝘵 𝘱𝘳𝘰𝘧𝘦𝘴𝘴𝘪𝘰𝘯𝘢𝘭, 𝘩𝘪𝘨𝘩𝘭𝘺 𝘳𝘦𝘤𝘰𝘮𝘮𝘦𝘯𝘥𝘦𝘥. 𝘏𝘦 𝘩𝘢𝘴 𝘨𝘳𝘦𝘢𝘵 𝘬𝘯𝘰𝘸𝘭𝘦𝘥𝘨𝘦 𝘢𝘯𝘥 𝘢𝘭𝘸𝘢𝘺𝘴 𝘴𝘵𝘳𝘪𝘷𝘦𝘴 𝘵𝘰 𝘤𝘰𝘮𝘱𝘭𝘦𝘵𝘦 𝘵𝘩𝘦 𝘫𝘰𝘣 100%+. 𝘞𝘰𝘳𝘬𝘪𝘯𝘨 𝘸𝘪𝘵𝘩 𝘝𝘪𝘬𝘵𝘰𝘳 𝘪𝘴 𝘢 𝘨𝘳𝘦𝘢𝘵 𝘱𝘭𝘦𝘢𝘴𝘶𝘳𝘦. (𝗖𝗼𝗺𝗽𝘂𝘁𝗲𝗿 𝗩𝗶𝘀𝗶𝗼𝗻 & 𝗠𝗮𝗰𝗵𝗶𝗻𝗲 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴 - ⭐⭐⭐⭐⭐ 5.0/5.0) - 𝘝𝘪𝘬𝘵𝘰𝘳 𝘸𝘢𝘴 𝘨𝘳𝘦𝘢𝘵 𝘵𝘰 𝘸𝘰𝘳𝘬 𝘸𝘪𝘵𝘩, 𝘢𝘯𝘥 𝘩𝘦 𝘮𝘢𝘥𝘦 𝘲𝘶𝘪𝘤𝘬 𝘸𝘰𝘳𝘬 𝘰𝘧 𝘵𝘩𝘦 𝘱𝘳𝘰𝘫𝘦𝘤𝘵 𝘳𝘦𝘲𝘶𝘪𝘳𝘦𝘮𝘦𝘯𝘵𝘴. 𝘞𝘦 𝘸𝘪𝘭𝘭 𝘣𝘦 𝘸𝘰𝘳𝘬𝘪𝘯𝘨 𝘸𝘪𝘵𝘩 𝘩𝘪𝘮 𝘢𝘨𝘢𝘪𝘯. (𝗢𝗽𝗲𝗻𝗖𝗩 & 𝗣𝘆𝘁𝗵𝗼𝗻 - ⭐⭐⭐⭐⭐ 5.0/5.0) - 𝘝𝘪𝘬𝘵𝘰𝘳'𝘴 𝘦𝘹𝘱𝘦𝘳𝘵𝘪𝘴𝘦 𝘢𝘯𝘥 𝘥𝘦𝘥𝘪𝘤𝘢𝘵𝘪𝘰𝘯 𝘩𝘢𝘷𝘦 𝘤𝘰𝘯𝘴𝘪𝘴𝘵𝘦𝘯𝘵𝘭𝘺 𝘪𝘮𝘱𝘳𝘦𝘴𝘴𝘦𝘥 𝘶𝘴, 𝘢𝘯𝘥 𝘐 𝘤𝘢𝘯 𝘤𝘰𝘯𝘧𝘪𝘥𝘦𝘯𝘵𝘭𝘺 𝘴𝘢𝘺 𝘵𝘩𝘢𝘵 𝘩𝘦 𝘩𝘢𝘴 𝘣𝘦𝘦𝘯 𝘢𝘯 𝘪𝘯𝘷𝘢𝘭𝘶𝘢𝘣𝘭𝘦 𝘢𝘴𝘴𝘦𝘵 𝘵𝘰 𝘰𝘶𝘳 𝘵𝘦𝘢𝘮. 𝘓𝘰𝘰𝘬𝘪𝘯𝘨 𝘧𝘰𝘳𝘸𝘢𝘳𝘥 𝘵𝘰 𝘧𝘶𝘳𝘵𝘩𝘦𝘳 𝘤𝘰𝘭𝘭𝘢𝘣𝘰𝘳𝘢𝘵𝘪𝘰𝘯 𝘪𝘯 𝘵𝘩𝘦 𝘧𝘶𝘵𝘶𝘳𝘦. (𝗖𝗨𝗗𝗔, 𝗚𝗣𝗨 & 𝗖++ - ⭐⭐⭐⭐⭐ 5.0/5.0) … 𝗖𝗼𝗺𝗽𝘂𝘁𝗲𝗿 𝗩𝗶𝘀𝗶𝗼𝗻 - Real-Time Video Analytics: Object detection, tracking, pose estimation, action recognition, face recognition, and multi-camera analytics. - Computer Vision & Deep Learning: YOLO, SSD, CNNs, classification, segmentation, model training, and optimization. - 3D Vision & OCR: Stereo vision, depth estimation, camera calibration, SLAM, 3D reconstruction, OCR, and document processing. - Edge AI & GPU Computing: CUDA, TensorRT, NVIDIA DeepStream, ONNX, Jetson, GPU acceleration, and low-latency inference. - Vision Production Systems: OpenCV, GStreamer, FFmpeg, RTSP/WebRTC, scalable inference, and production deployment. 𝗔𝗜 & 𝗠𝗮𝗰𝗵𝗶𝗻𝗲 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴 - AI Integration & Automation: AI APIs, intelligent workflows, business automation, and AI-powered applications. - LLM & Generative AI: LLMs, RAG, embeddings, vector search, structured outputs, and AI assistants. - AI Agents & Intelligent Systems: AI agents, tool calling, MCP, agent orchestration, and multi-agent systems. - Machine Learning & Predictive Modeling: Neural networks, SVM, decision trees, classification, regression, and clustering. - AI Production Engineering: Model deployment, Python backends, APIs, cloud infrastructure, scalable inference, and monitoring. 𝗗𝗮𝘁𝗮 & 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀 - Data Analysis & Statistics: Exploratory analysis, statistical modeling, hypothesis testing, regression, and quantitative analysis. - Data Processing & Engineering: Data cleaning, transformation, feature engineering, and automated data pipelines. - Data Mining & Pattern Discovery: Data mining, pattern recognition, clustering, anomaly detection, and similarity analysis. - Search & Recommendation Systems: Information retrieval, semantic search, ranking, similarity search, and recommendation systems. - Data Intelligence: Predictive analytics, automated analysis, decision support, and data-driven applications. 𝗣𝗿𝗼𝗴𝗿𝗮𝗺𝗺𝗶𝗻𝗴 & 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗦𝘁𝗮𝗰𝗸 - Languages: Python, C++, C, JavaScript, MATLAB, Java, .Net, SQL, Oracle - AI / ML Frameworks: PyTorch, TensorFlow, TensorRT, Keras, Caffe, scikit-learn, Hugging Face - Computer Vision: OpenCV, PCL, YOLO, Tesseract OCR - Generative AI: OpenAI API, Anthropic API, LangChain, LlamaIndex, ChatGPT - GPU / NVIDIA: CUDA, TensorRT, NVIDIA DeepStream, NVIDIA Jetson, ONNX - Data Science: NumPy, Pandas, SciPy - Video / Media: FFmpeg, GStreamer, RTSP, WebRTC - Backend / APIs: FastAPI, REST API, .NET, ASP.NET, Flask - Databases: PostgreSQL, MySQL, SQLite, Oracle - Cloud / Deployment: AWS, Docker, Linux, Microsoft Azure, GCP, NVIDIA Cloud, Kubernetes, Terraform - Development: Git, SVN, CMake, CI/CD 🚀 𝗟𝗲𝘁'𝘀 𝗕𝘂𝗶𝗹𝗱 𝗦𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝗩𝗮𝗹𝘂𝗮𝗯𝗹𝗲 I help turn complex AI and software requirements into efficient, scalable, production-ready solutions using AI/ML, Computer Vision, Python, C++, and CUDA/GPU technologies. 🔑 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀 RAG, Prompt Engineering, Data Analysis, Pattern Recognition, Computer Vision, Object Detection, Object Tracking, Image Classification, OCR, 3D Computer Vision, Stereo Vision, SLAM, Image Processing, Edge AI, GPU Acceleration, Python, C++, C, MATLAB, Java, JavaScript, .NET, SQL, CUDA, PyTorch, TensorFlow, Keras, scikit-learn, Hugging Face, OpenCV, PCL, YOLO, TensorRT, NVIDIA DeepStream, NVIDIA Jetson, ONNX, NumPy, Pandas, SciPy, FastAPI, ASP.NET, Flask, PostgreSQL, MySQL, Oracle, AWS, Azure, GCP, Docker, Kubernetes, Terraform, Linux, CMake, Git, FFmpeg, GStreamer, RTSP, WebRTC.

I build systems that turn complex data, workflows and technology into practical tools for businesses, organizations and decision-makers. ✔️ Web & SaaS platforms ✔️ Interactive maps & location intelligence ✔️ Data dashboards & analytics ✔️ Remote-sensing & GIS solutions ✔️ Disaster & Climate Solutions ✔️ AI, Automation & operational systems You bring the business problem. I build the technology around the solution. WHAT I CAN HELP YOU BUILD → Web & SaaS Products Complete web and mobile applications, business platforms, APIs, databases and scalable backend systems. → GIS & Mapping Applications Interactive maps, location intelligence, spatial databases, geospatial APIs and large-scale geographic data solutions. → Remote Sensing & Geospatial Data Satellite imagery analysis, Google Earth Engine workflows, georeferencing, map digitization, spatial analysis and GIS data products. → Data Dashboards & Decision Support Transforming complex datasets into clear dashboards, visualizations and tools that support better decisions. → Disaster, Climate & Environmental Solutions GIS-based risk assessment, climate and environmental analysis, monitoring systems and decision-support applications. → Logistics & Operational Platforms Mapping, fleet and asset management workflows, location-based business systems and operational dashboards. → AI, Automation & Existing Products Computer vision, object detection, data processing, API integrations, feature development and improvements to existing applications. MY TECHNICAL EXPERTISE Frontend: Next.js, React, React Native, JavaScript, HTML, CSS Backend: Python, Django, Node.js, Express.js, REST APIs GIS & Mapping: ArcGIS, QGIS, GeoServer, PostGIS, OpenLayers, Cesium, Mapbox, MapLibre, Leaflet Remote Sensing: Google Earth Engine, GeoPandas, Rasterio, satellite imagery, spatial analysis AI & Machine Learning: PyTorch, TensorFlow, OpenCV, YOLO Data & Databases: Pandas, NumPy, PostgreSQL, MongoDB, MySQL, Supabase Other: Docker, cloud deployment and third-party API integrations 5+ years of experience building WebGIS platforms, interactive mapping applications, remote sensing workflows, AI solutions, dashboards, and custom software products. My goal is to deliver a solution that works for your users and supports your business objectives. Have an existing product, a new idea, or a problem you're trying to solve? Send me the details. I'll help you turn it into a practical, working solution.