{"entity":"person","person":{"name":"Maria Afanasyeva","role":null,"level":"Senior","country":null,"summary":"An experienced ML practitioner (senior-level notebook work) focused on entity resolution and duplicate detection with strong feature engineering and evaluation skills. The single strongest proven skill is production-minded entity-resolution feature engineering and pairwise modeling as demonstrated in AI-customer-deduplication/EDA_and_model.ipynb (profile-level aggregation, fuzzy/email/phone normalization, leakage-aware pair generation, and graph-based clustering). There is limited evidence of production engineering around testing, CI/CD, scalable candidate-generation (blocking at scale), and model serving/monitoring in public artifacts.","skills":[{"name":"Python","group":"Languages","level":"Senior","since":2017},{"name":"Java","group":"Languages","level":"Junior","since":2019},{"name":"Terraform","group":"DevOps","level":"Middle","since":2019},{"name":"Ansible","group":"DevOps","level":"Middle","since":2019},{"name":"Git","group":"DevOps","level":"Middle","since":2021},{"name":"Jenkins","group":"DevOps","level":"Intern","since":2019},{"name":"Docker","group":"DevOps","level":"Not selected","since":null},{"name":"GitLab CI","group":"DevOps","level":"Not selected","since":null},{"name":"Linux","group":"DevOps","level":"Not selected","since":null},{"name":"CI/CD","group":"DevOps","level":"Not selected","since":null},{"name":"Selenium","group":"QA","level":"Intern","since":2020},{"name":"Pytest","group":"QA","level":"Intern","since":2020},{"name":"Locust","group":"QA","level":"Middle","since":2022},{"name":"Claude","group":"AI/ML","level":"Middle","since":2024},{"name":"Model Context Protocol","group":"AI/ML","level":"Middle","since":2024},{"name":"Pandas","group":"AI/ML","level":"Senior","since":null},{"name":"NumPy","group":"AI/ML","level":"Senior","since":null},{"name":"Scikit-learn","group":"AI/ML","level":"Senior","since":null},{"name":"TensorFlow","group":"AI/ML","level":"Junior","since":2025},{"name":"CatBoost","group":"AI/ML","level":"Senior","since":null},{"name":"LLM","group":"AI/ML","level":"Not selected","since":null},{"name":"Jupyter Notebook","group":"AI/ML","level":"Senior","since":null},{"name":"Machine Learning","group":"AI/ML","level":"Not selected","since":null},{"name":"NLP","group":"AI/ML","level":"Not selected","since":null},{"name":"PostgreSQL","group":"Databases","level":"Middle","since":2019},{"name":"Matplotlib","group":"Analytics","level":"Senior","since":null}],"photo":"https://alion.io/storage/2026/1023/68df840609.webp","url":"https://alion.io/user/maria-afanasyeva"},"contact":"Through Alion only: the person decides whether to answer. Email addresses and phone numbers are never served.","offers":[{"id":"person.contact","title":"Write to a person through Alion","status":"free","price":{"credits":0,"usd":0},"unit":"per message","human":"https://alion.io/catalog?offer=person.contact&for=user%2Fmaria-afanasyeva"},{"id":"people.search","title":"Find people by skills, country and level","status":"free","price":{"credits":0,"usd":0},"unit":"per search","note":"people with a similar profile","human":"https://alion.io/catalog?offer=people.search&for=user%2Fmaria-afanasyeva"}],"agent":{"mcp":"https://alion.io/user/maria-afanasyeva/mcp","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_profile","server":"https://alion.io/user/maria-afanasyeva/mcp","arguments":{}},{"tool":"check_fit","server":"https://alion.io/user/maria-afanasyeva/mcp","arguments":{"offer":{"title":"...","pay":{"min":0,"max":0,"currency":"USD"}}}}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. Docs: https://alion.io/developers"},"html_url":"https://alion.io/user/maria-afanasyeva","json_url":"https://alion.io/user/maria-afanasyeva.json","meta":{"generated_at":"2026-10-30T00:28:13Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":471,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-31T00:00:00Z"}}}