Upwork home
Sign up
Secondary
Serhii R. Status: Offline
Kyiv, Ukraine
100% Job Success

PhD, Data Scientist | Machine Learning and AI Expert | R/Python DevOps

✅ Ph.D. in mathematical methods, modeling and information systems. 10 years of experience in academia (lecturing, researches and hypotheses testing). Alongside, I've amassed 12 years of experience tackling challenging projects: risk management system development (bank industry); implemented AI and ML approaches; market analysis and forecasting (pharmaceutical industry); hypotheses testing (medical industry); trading bots development; macroeconomic analysis. 🛠 My hard skills: o Probabilistic methods and Statistics; o Programming Languages: R, Python, MT4, SQL, VBA; o Approaches: Time-series analysis, Processes analysis and simulation, Segmentation and Clusterization, Deep Learning (MLP, LSTM, GRU, CNN, RNN, Autoencoders etc.), Reinforcement Learning, Predictive Modeling, Anomalies detection, Decision trees, Sentimental analysis; o Tools: MS Azure, AWS, Google Cloud, H2O.ai, TensorFlow, PyTorch, Scikit-learn, Keras, Pandas, Numpy, Matplotlib, ggplot2, dplyr, Power BI, REST API. 👋 Soft skills: o 💯% Success Rate: I wholeheartedly immerse myself in projects to deliver optimal solutions; o ✨ Creativity: applying modern methods across diverse projects with high expertise; o 🤝 Collaborative Team Player: sharing expertise and valuing colleagues' suggestions to derive data-driven insights; o Respectful of time schedules. Example of accomplished projects: o Sales forecasting with factors extraction; o Automated trading system; o Process flow optimization in a major company (Big Data); o Inventory management based on DL models; o Anomaly detection in asset workloads; o Hypothesis tests and reports for research; o Developing simulation models of macroeconomic system; o Customer clusterization and crafting marketing strategies for respective clusters. 📝Some clients’ feedback: "Great developer, perfect communication and a general professional approach." "Excellent work! Serhii is very communicative and reliable. He goes the extra mile to ensure his work meets all the requirements. He delivers projects on time. I would definitely like to work with him again. Thanks Serhii!" "From this Project, i have the highest regard for Serhii. He is PROFESSIONAL, DELIGENT, HAS INTEGRITY & SUBJECT MATTER EXPERTISE AND IS PROFEICENT IN CODING. He takes the time to understand the Project in detail and attends to all feedback. In addition, what has set him apart from many others is that despite various challenges, he is always willing to help and sees the Project through to a successful completion. I have enjoyed working with Serhii on this Project and look forward to working with him on many more." "Really good freelancer with skills and insight to help me with minor and major business decisions. E.g. he helped me to figure out our customer base attrition, post codes of the ideal customers etc.. for our service industry business. Impact was that we save roughly 4-5k€ /month as I now have facts to cut down Google Ads campaigns for post codes that do not produce recurring revenue.. Now I have validated data / ideas besides basic CPA to actually know that the marketing truly has a high ROI. Will definitely hire again when I have business data questions etc. All the best for this guy... Hope that he will get great work gigs in the future as well and I am sure that he will." I am eager to engage in compelling projects involving ML and business process analysis.
Work history
Serhii R. has more jobs. Create an account to review them
Skills

Skills

  • R
  • Microsoft Excel
  • Python
  • Machine Learning
  • Statistical Computing
  • Artificial Neural Network
  • Econometrics
  • Artificial Intelligence
  • Economic Analysis
  • Financial Modeling
  • Academic Writing
  • Quantitative Analysis
  • TensorFlow
  • Microsoft Azure
  • AWS Development
  • SAP

Browse similar freelancers