Hire the Best Machine Learning Engineers
in Poland

🎁 𝐆𝐄𝐓 𝐘𝐎𝐔𝐑 𝐅𝐑𝐄𝐄 𝐀𝐈 𝐑𝐄𝐀𝐃𝐈𝐍𝐄𝐒𝐒 𝐀𝐔𝐃𝐈𝐓 - send me a message and I'll analyze your stack, data pipelines, and AI use cases in 3-5 days. I work as a Machine Learning Engineer, AI Engineer, DevOps Engineer, and Python Developer delivering production Machine Learning systems and AI solutions using Python, with a strong focus on LLM, RAG systems, Computer Vision, and full MLOps / DevOps infrastructure. I operate with a team of 90+ engineers across Machine Learning, DevOps, and Backend, delivering complex Machine Learning and AI systems end-to-end, from data pipelines to deployed, monitored, and scaled systems in production for US and European clients. I'm a Machine Learning Engineer, AI Engineer, and Python Developer with 10+ years of experience building Machine Learning systems and AI solutions using Python for SaaS, fintech, manufacturing, and enterprise companies. As a Machine Learning Engineer, I combine Python, Deep Learning, NLP, Computer Vision, and LLM technologies to build scalable, production-grade Machine Learning systems that solve real business problems. 💻 As a Machine Learning Engineer, AI Engineer, and RAG Developer, I build RAG systems and Retrieval-Augmented Generation pipelines using Python, vector databases, semantic search, and knowledge retrieval systems integrated into production workflows. As a Machine Learning Engineer working with RAG pipelines, I design systems connected to SQL databases, CRMs, and internal knowledge bases. One Machine Learning-powered RAG system reduced support workload equivalent to 3 full-time employees, cutting response time from hours to seconds. As an AI Agent Developer using LangGraph and CrewAI, I build multi-agent Machine Learning systems where each agent handles retrieval, reasoning, and execution in a single production pipeline. 🤖 As a Machine Learning Engineer, AI Engineer, and LLM Developer, I deliver end-to-end LLM integration using Python and models like GPT-4/5, Claude, LLaMA, and Mistral. I build AI agents, AI copilots, and Machine Learning-driven automation systems integrated into enterprise workflows. As a Machine Learning Engineer, I handle prompt engineering, context engineering, embedding pipelines, vector databases like Pinecone, Weaviate, and Chroma, and optimization of Machine Learning and RAG systems in production environments. 👁️ As a Machine Learning Engineer and Computer Vision Engineer, I develop Computer Vision systems using Python, YOLOv8, Detectron2, and OpenCV for object detection, segmentation, and real-time analytics. I delivered a Machine Learning system that replaced manual inspection in manufacturing and reduced defect escape rate to near zero. I also build Document AI systems using OCR tools like Textract and Google DocAI, including full Machine Learning pipelines for processing noisy and unstructured data. 🧠 As a Machine Learning Engineer and NLP Engineer, I build Machine Learning systems using Python for Named Entity Recognition, text classification, semantic search, multilingual NLP, question-answering systems, sentiment analysis, and topic modeling. I combine traditional Machine Learning approaches with LLM technologies to deliver production-ready language systems. ⚙️ As a Machine Learning Engineer, MLOps Engineer, and DevOps Engineer, I design, deploy, and scale Machine Learning systems in production using Python and cloud infrastructure. I build Machine Learning and AI infrastructure with Kubernetes, Docker, Terraform, Ansible, Jenkins, Kafka, Grafana, Prometheus, and NGINX across AWS, Google Cloud, and Azure. In one DevOps and Machine Learning case, deployments scaled from 1 per month to 120 per month, deployment time decreased by 85%, and infrastructure costs were reduced by 55%. As a Machine Learning Engineer and DevOps Engineer, I don't just build models - I deploy, monitor, optimize, and scale Machine Learning systems in real environments. I build Machine Learning systems using Python, AI solutions, LLM applications, RAG systems, Computer Vision pipelines, NLP systems, and scalable MLOps / DevOps infrastructure that works in production. If you're looking for a Machine Learning Engineer, AI Engineer, Python Developer, or DevOps Engineer who understands Machine Learning systems, DevOps infrastructure, and real business workflows - you're in the right place. 🚀 If you're building or scaling a Machine Learning or AI product and need a Machine Learning Engineer, Python Developer, or DevOps Engineer who can design, build, deploy, and scale real production systems - not just prototypes - I can help. Most clients come when their Machine Learning systems are slow, unstable, or not delivering results. I redesign, optimize, and turn them into scalable Machine Learning and AI systems powered by Python and reliable DevOps infrastructure. 📩 Send me a message with your current setup, and I'll tell you what's missing, what can be improved, and whether your Machine Learning system is ready for prod

🔥 Are you searching for a Machine Learning Engineer who can turn your data into actionable insights? Look no further! With my expertise in advanced machine learning techniques and a passion for solving complex problems, I am here to help you achieve remarkable results. Let's collaborate and unleash the true potential of your data-driven projects. 🚀 🌟 What sets me apart from other freelancers? 🌟 ✅ Extensive Experience: I have worked on a diverse range of machine learning projects, spanning various industries such as finance, R&D companies, and e-commerce. My expertise covers the entire machine learning pipeline, from data preprocessing to model development and deployment. ✅ Strong Technical Background: I hold a degree in Mechatronics Engineering with a specialization in Machine Learning. I am well-versed in a wide array of machine learning algorithms, including deep learning, reinforcement learning, and natural language processing. I am proficient in programming languages such as Python and have hands-on experience with popular frameworks and libraries like TensorFlow and PyTorch. ✅ AWS Knowledge and Experience: I have a strong understanding of Amazon Web Services (AWS) and its machine learning services. I can leverage AWS tools such as Amazon SageMaker, EC2, AWS Lambda, and AWS Glue to build scalable and efficient machine learning workflows and automated deployment and maintenance processes. I have hands-on experience deploying machine learning models on AWS and optimizing them for high performance and cost efficiency. ✅ Results-Driven Approach: I am committed to delivering exceptional results that exceed expectations. I am passionate about understanding your specific project requirements and tailoring machine-learning solutions that address your unique challenges. My goal is to provide you with actionable insights, accurate predictions, and robust models that drive tangible business outcomes. ✅ Collaborative Mindset: I believe in open and effective communication as the key to successful collaborations. I strive to maintain constant communication throughout the project lifecycle, ensuring that you are always aware of the progress and have opportunities to provide feedback. Your satisfaction is my top priority. ✅ Continuous Learning: Machine learning is a rapidly evolving field, and I stay up-to-date with the latest research papers, techniques, and industry trends. I am dedicated to expanding my knowledge and incorporating cutting-edge practices into my work, enabling me to deliver state-of-the-art solutions that give you a competitive edge. 🌟 Services I Offer 🌟 ✓ Data Preprocessing and Feature Engineering: I have expertise in cleaning and transforming raw data into meaningful features, enabling accurate model training and improved performance. ✓ Model Development and Training: I design and develop custom machine-learning models tailored to your specific needs. I employ a variety of algorithms and techniques to achieve optimal performance, accuracy, and interpretability. ✓ Model Evaluation and Optimization: I rigorously evaluate the performance of machine learning models using appropriate metrics and employ optimization techniques to fine-tune them for better results. ✓ AWS Integration and Deployment: I can assist in deploying machine learning models on AWS infrastructure, ensuring seamless integration with your existing systems. I have experience with Amazon SageMaker for model training and hosting, as well as AWS Lambda for serverless model deployment. ✓ Ongoing Support and Maintenance: I provide continuous support to ensure the long-term success of your machine learning solutions. This includes monitoring, troubleshooting, and updating models as needed. 🌟 Let's Collaborate! 🌟 If you're looking for a dedicated and skilled Machine Learning Engineer with expertise in AWS, who can turn your data into actionable insights and drive your business forward, look no further. Contact me today to discuss your project requirements and explore how we can work together to achieve remarkable results.

I'm an experienced data scientist specializing in data analysis, preprocessing, and AI-based solutions. I help clients identify when their real problem is in the data rather than needing complex ML algorithms. I excel in solving complex business challenges through tailored solutions and expert consultation. I'm skilled in advanced math (academic level), AI agents, and data visualization (Looker Studio), which can be a stand-alone consultation or a nice bonus to your project! I deliver comprehensive end-to-end solutions - from data provider negotiation to preprocessing, modeling, implementation and documentation. I'm also available for consultation. "Greg knows LLM tools like langchain *really* well. He understood a genuinely tough problem and helped me solve it super fast. Highly recommended!" "Grzegorz Wiktorowicz, is a great financial developer...he understands the problem very quick and and dig that problem in minute manner and sloves it...hoping to catch with him in future projects .thanku" "Thank you very much sir for the super fast and extremely professional algorithm and program creation. I am super happy that we have met and I definetely would like to work together in many many more projects together." "Very professional and quick! Extremally detailed response and provided with ways to improve our business as an extra! We will for sure hire again! Thanks again" With over a decade of experience, I've successfully addressed a wide range of business issues, including internet casinos, sports betting, logistic optimization, and stock trading, among others. Employing detailed analysis and strategic resource planning, I've consistently delivered results that meet or exceed client expectations. Proficient in Python, C, and SQL, I hold cloud-native certifications as a Google Cloud ML Engineer and Data Engineer. Beyond task execution, I possess a deep understanding of methodologies, their strengths, and limitations. My background as a former scientist uniquely positions me to ensure your projects align with best practices and achieve your objectives. My adaptability and extensive knowledge make me an ideal partner for your data science needs. Whether you require data-driven solutions, want to discuss your project's unique demands, or need guidance on best practices, please don't hesitate to reach out. Initial consultations are free, and I'm eager to collaborate with you to achieve your goals. EXPERTISE: - data science and analytics - data engineering and management - Machine learning and AI - Quant trading - Data visualization and storytelling - Cloud engineering - consultation SKILLS: Python (full data stack, incl. Pandas, SciPy, Scikit-Learn, jupyter, plotly) Time Series Analysis/Forecasting (financial, trading, observations, predictions) Data visualisation - Looker Studio Masterclass certification GCP (BigQuery, Storage strategies, ETL, ML, migration, efficiency and cost reduction) - Google Cloud Professional Data Engineer certification - Google Cloud Machine Learning Engineer certification LLM (langchain, pinecone, llama.cpp, transformers, OpenAI, chatGPT) Git, docker, MATLAB, slurm, bash, linux, SQL (GoogleSQL, Postgres, MySQL) Statistics (academic level, incl. data analysis and modelling, Monte Carlo, bootstrapping, hypothesis testing) >> Drop me a massage so we can analyze your needs together (it's free!)

Full Stack Developer & AI Developer / AI SaaS Developer — I'm a Web Application Developer & AI Engineer focused on AI Solutions & AI SaaS Development. Strong skills as an AI SaaS Architect, Senior Python Developer, and React Developer. Top Rated Plus | 100% Job Success | Only 5-star reviews ⭐⭐⭐⭐⭐ You'll get your AI SaaS prototype in 2 days, your AI-Powered SaaS MVP or AI solution shipped in 6-12 weeks🚀 🎓 BACKGROUND I've Master’s in Data Science & AI, currently preparing a PhD in AI. I’m a Senior Full-Stack Developer / AI Developer & AI Solution Architect with more than 8 years across 60+ projects. 💬 "Ilya led the work as the AI SaaS solutions architect & AI full-stack engineer, taking ownership of the overall architecture and delivery. Ilya delivered as an AI SaaS developer — balancing product, engineering, AI work without losing speed or quality. Ilya was exactly the kind of fractional CTO & engineering partner I was looking for. Highly recommend Ilya" — Jake Kinzelberg, Founder, Insurance AI SaaS, USA 💬 "Thanks to Ilya for developing my AI-powered SaaS. Ilya proved himself as an excellent AI Software developer & fullstack developer, proposed a clean UI UX SaaS Web design, built a solid backend with Python FastAPI, a front end with React" — Dmitri Dalla-Riva, Founder of Aidtrade, Australia 🎯 WHAT I DO I ship production-grade AI SaaS / AI product end-to-end. You come to me when you need: 🔹 SaaS MVP in weeks — built on architecture that scales beyond the prototype 🔹 AI development, AI Integration, LLM integration — RAG pipelines, AI agent SaaS, Voice Agent 🔹 Full Stack development delivery — one senior point of contact, one accountable owner 🔹 A technical co-founder mindset — scoping the SaaS development, making architecture decisions, owning the result 🛠 HOW I WORK As a Senior Full Stack Developer (React Python), AI Architect, I lead a small team — Senior Backend Engineer (Python Node.js), Frontend (React Angular Next.js), Full Stack Developer AI (JavaScript Vue.js jQuery Bootstrap), AI/ML Engineer, Mobile App Developer (Flutter), UI UX designer / SaaS UX designer — all under my direct coordination. In my work as a Full Stack AI SaaS developer & Python developer, I act as your delivery manager: one point of contact, the delivery capacity of a small agency. I work with Founders as a long-term Partner — calm execution, clear communication 📌 AI-Powered SaaS Development As a Full Stack Web Developer / AI SaaS full stack developer / SaaS AI Software Architect, I design SaaS Startup MVP that scale beyond the first version — multi-tenant architecture, role-based access, billing, webhooks, pipelines 🔹 SaaS architecture → Multi-tenant SaaS, RBAC, OAuth2, Stripe, AI API Integration 🔹 SaaS data layer → PostgreSQL, Redis, Supabase, multi-tenant isolation 🔹 SaaS infrastructure → Docker, AWS, Azure, Vercel, Cloudflare, CI/CD 🔹 SaaS delivery & AI MVP Development → SaaS design, MVP-to-production in 6 weeks 📌 AI Software Development As an Anthropic / OpenAI Developer, Data Scientist & Machine Learning Engineer, I integrate LLM & RAG into SaaS & Websites 🔹 AI/LLM integrations → Claude, ChatGPT-5, LLaMA, Mistral — fine-tuning, prompt design 🔹 RAG & Vector DB → LangChain, FAISS, Qdrant, Pinecone, ChromaDB, pgvector — Voyage embeddings, hybrid search inside SaaS, AI SEO 🔹 Generative AI → Stable Diffusion, SDXL, LoRA — custom image pipelines 🔹 AI ML Engineer → AI automation, deep voice agent, Computer Vision, MCP integrations, dashboards, LLM-powered SaaS 📌 Full Stack Development / Web Application Development As an AI Machine learning / Python Full Stack Developer & React developer / Senior Web Developer Python, I own the SaaS product end-to-end — ReactJS Next.js frontends, Python FastAPI Node.js backends with Superbase; MERN stack, PHP, Webflow / WordPress developer. 🔹 Front end developer → React, Next.js, TypeScript, Tailwind CSS, JavaScript 🔹 Backend developer → Python FastAPI, Django, Node.js, REST API development, GraphQL APIs 🔹 Real-time → WebSockets, Server-Sent Events for streaming AI 🔹 Web Application architecture & Web Development → modular monorepos, microservices 🤖 SENIOR AI-AUGMENTED DEVELOPMENT As a Senior AI Engineer / Python Backend Developer, I use modern AI tools for faster AI development: GitHub Copilot for coding, ChatGPT for reasoning, Cursor for refactoring, Claude Code with MCP for architecture, Replit for prototype testing, Lovable for MVPs prototyping, Bolt.new for web app experiments, v0 by Vercel for UI generation 🏆 MY UPWORK TRACK RECORD ✅ Top Rated Plus Expert ✅ 100% Job Success Score ✅ $200K+ earned delivering SaaS & AI Solutions ✅ 16 completed Upwork jobs ✅ 5-star average rating ✅ Upwork Skill Certified — Python Developer; Back-End Development 🤝 LET'S WORK TOGETHER If you're building SaaS or AI solution — you need a technical partner who ships, owns, thinks like a co-founder — message me. You’re taken from idea to deployment — faster and smarter

🏆 Experienced AI Engineer, Data Scientist and Founder @Stratify, An AI consultation agency 🤖 Extensive work with industrial, academic, R&D and start-up scale projects focusing on all aspects of AI Engineering, Data Science and Full Stack Development, such as: 🏢I studied Artificial intelligence in bachelors in a top rated University and published a lot of articles and publications about machine learning. My thesis was about the implementation of hybrid quantum classical ML in clouds env such as IBM cloud, AWS, and AZURE. 😇 I have worked for Microsoft for 1.5years as Azure Machine Learning Engineer. This gave me a headstart due to high achiever environment, high demand work culture and I worked on different windows and cloud technologies such DNS, DHCP, VPN, ExpressRoutes, and many others for L3&L4 support. 🗣️ I am Currently working on my Agency primary focusing on AI solutions for SMEs. I deliver high quality AI solutions that actually contribute the global positioning of companies around Europe. I have worked with Admind Branding and communication and LTIMindtree ltd to bring AI solutions to live. 🆙 Upwork ➝ My Focus has been Linkedin and Twitter. I gained clients there and established relationship with more that 11k followers. I was introduced to upwork recently by a Top rated designer a The impact that I deliver for clients and where my skillset is most valuable is at the intersection of AI, development, and your business objectives. I'm a highly creative technologist who understands the technicalities and complexity of AI, whilst also empathising with the need to deliver value. Whether it's rapidly developing an MVP, optimising an existing AI pipeline or building and deploying a production-ready AI system within your existing stack, I would love to help you on that journey using a tried and tested, proven framework that I've used for over 5+ years. I'm happiest when I'm working with innovative clients on inspiring projects, building something to make our society a better place! What can we build together? The sky is the limit... ❓WHAT MAKES ME DIFFERENT? 💡 Creativity ➝ A skill that is commonly overlooked in the technical space. Despite my technical education & experience, my passion lies in creativity. I have a keen eye for design and I love creating tangible solutions, services & products. Anything we create together will be bespoke to your exact needs. 🗣 Communication ➝ 90% of AI projects never make it to production, I've seen this first hand. A large contributor to this is ineffective communication and alignment with business value & objectives. I have over 5 years of experience with stakeholders at all levels communicating complex AI projects and selling these concepts into businesses. Hence, communication plays a huge part in my value proposition. I'm a clear & confident communicator with vast experience in public speaking, enablement & onboarding. 🤝 Trust ➝ From running my own businesses I know how hard it is to find people to trust. I'm a friendly, open & approachable person that strives to build rapport with you straight from the start. I value long lasting relationships where we can build incredible technology together! I would love to hear about your business & what you're working on, please reach out! You can rely on me to respond in an honest, timely & advisory manner always 👍🏽

Hi there! I’m a senior full‑stack engineer, machine learning expert, and solutions architect with 15+ years of experience building scalable, intelligent systems - now fully focused on next‑generation AI agents and LLM‑powered products. I design and ship AI‑first applications end‑to‑end: custom LLM agents, Retrieval‑Augmented Generation (RAG) pipelines, multimodal tools, autonomous workflows, and production‑ready SaaS platforms. My work combines solid engineering, strong architecture, and state‑of‑the‑art AI so that your idea becomes a reliable, maintainable system - not just a demo. I work with the latest AI ecosystem: OpenAI (GPT‑4, GPT‑4o), Claude, Gemini and other LLMs LangChain, LangGraph, tool‑calling agents, function calling, multi‑agent systems Vector databases and semantic search (Pinecone, Weaviate, Chroma, FAISS) RAG pipelines, context compression, embeddings, document AI (PDF, OCR + NLP), voice & image models Beyond AI, I bring a battle‑tested full‑stack and cloud background, so I can own the entire delivery: Backend: Python (FastAPI, Django, Flask), Node.js (Express), Ruby on Rails Frontend: React, Next.js, TypeScript, modern component‑based UIs Mobile: React Native, Flutter for cross‑platform iOS & Android apps Data & Infra: PostgreSQL, MongoDB, Redis, ETL/data pipelines, high‑load architectures Cloud & DevOps: AWS, GCP, Azure, Docker, Kubernetes, CI/CD, observability and monitoring What I Help Clients Build AI agents, copilots and chatbots that automate complex workflows and decision‑making RAG knowledge bases and internal AI tools on top of your documents, CRM, ticketing, logs AI‑powered SaaS platforms and admin panels with secure APIs and scalable architecture End‑to‑end MVPs and PoCs that can grow into long‑term production systems High‑load web and mobile applications used by thousands of concurrent users Key Stats & Achievements 🏆 194+ successful projects completed on Upwork with global clients 💲 $5M+ earned on Upwork through high-impact full-stack and AI solutions ⏱ 55,121+ hours billed, proving long-term client trust and engagement 💼 600+ total projects delivered since 2000 across AI, web, and mobile 📚 100% of developers hold engineering degrees, ensuring expert-level technical depth 👩‍💻 Advanced AI team includes Kaggle competition masters and top ML researchers 📊 91%+ job success rate, reflecting top-tier performance and consistency 🚀 25+ AI-driven apps deployed in FinTech, EdTech, and HealthTech 🧠 30+ machine learning models built and optimized for live environments 🌎 20+ industries served, from startups to Fortune 500 clients 🧱 Founded in 2000, bringing 24+ years of experience in software innovation 🛠 40+ React + Python full-stack solutions developed for scalable applications ⚡ High-load systems deployed to serve thousands of concurrent users 📈 Client ROI increased by up to 70% in AI automation projects 💬 Featured in Forbes, MBN Magazine, and Helsinki Times for client success stories I’m comfortable joining as a hands‑on AI/ML engineer, full‑stack lead or technical architect, and taking responsibility for design, implementation and long‑term stability of the solution. If you’re serious about integrating AI into your product, building a new AI platform, or scaling an existing SaaS, let’s talk and turn your idea into a production‑ready system. Keywords AI Engineer | ML Engineer | Machine Learning | Deep Learning | Large Language Models (LLMs) | Generative AI | LLM Developer | LangChain Developer | LangGraph Expert | RAG Developer | Retrieval‑Augmented Generation | OpenAI Developer | Claude AI | Gemini AI | ChatGPT API | GPT‑4 | Autonomous Agents | Multi‑Agent Systems | AI Chatbots | AI Copilot | AI Assistant | Toolformer | Function Calling | Agentic Systems | ReAct Agents | Prompt Chaining | Agent Routing | Self‑Improving Agents | Embedding Models | Semantic Search | Pinecone | Weaviate | Chroma DB | FAISS | Vector Store | Vector Embeddings | Context Compression | AI Pipelines | Custom LLMs | Finetuned Models | Model Evaluation | ML Model Deployment | Hugging Face | Model Distillation | Data Annotation | Active Learning | AI UX | AI Product Development | AI MVP | AI SaaS | SaaS Platform | AI Integration | Python AI | FastAPI Backend | Flask | Django | Node.js Backend | Express.js | Streamlit Apps | Gradio UI | React Frontend | Next.js App | Tailwind CSS | Vite | TypeScript | UI/UX for AI Products | MLOps | DevOps | Docker | Kubernetes | GCP | AWS | Azure AI | Cloud Functions | Cloud Run | EC2 | S3 | RDS | MongoDB | PostgreSQL | Redis | Supabase | Firebase | SQL | NoSQL | NLP Developer | Computer Vision Developer | AI for Healthcare | AI for Education | AI for Finance | AI for Legal | AI for Marketing | AI for HR | Real‑Time AI | Chatbots for Customer Support | Custom API Integrations | Webhooks | AI Automations | Digital Workers | Intelligent Automation | AI Platforms | Scalable Architecture | API Gateway | Microservices | Serverless | Full‑Stack AI | B2B SaaS |