{"id":161239,"url":"https://alion.io/job/headhunter-senior-data-scientist-komanda-rekomendatsii","title":"Senior Data Scientist (команда рекомендаций)","company":{"id":61857,"name":"HeadHunter","domain":"hh.ru","url":"https://alion.io/company/headhunter","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":true,"listed_via":null,"ats_vendor":"HeadHunter","truth_index":{"grade":"C","score":68,"open_postings":18,"ghost_share":0.5,"stale_share":0,"repost_share":0.5,"time_to_fill_p50_days":8,"computed_at":"2026-11-01T06:10:25Z"}},"role":"Data Science","role_family":"Data Science","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_regions","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Moscow, Russia"],"countries":["RU"],"hiring_countries":["RU","BY","KZ","KG","AM"],"hiring_countries_total":5,"salary":{"min":450000,"max":null,"currency":"RUB","period":"month","gross":false,"usd_annual":61812},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Hadoop","optional":false},{"name":"LightGBM","optional":false},{"name":"Machine Learning","optional":false},{"name":"NumPy","optional":false},{"name":"Python","optional":false},{"name":"PyTorch","optional":false},{"name":"Recommender Systems","optional":false},{"name":"Scikit-learn","optional":false},{"name":"SciPy","optional":false},{"name":"SQL","optional":false},{"name":"Apache Kafka","optional":true},{"name":"Cassandra","optional":true},{"name":"Java","optional":true},{"name":"Presto","optional":true}],"status":"live","first_seen_at":"2026-10-07T12:58:35Z","employer_posted_date":"2026-10-07","last_verified_at":"2026-11-01T03:32:15Z","board_verified":true,"closed_at":null,"days_open":24,"trust":{"level":"ghost","repost_count":4,"flags":["repost"],"days_open":24},"description":"Мы ищем data scientist’а с опытом работы в текстовых задачах, рекомендательных или поисковых системах. Если вы хорошо знаете математику, любите копаться в больших массивах данных, находить в них закономерности, и умеете внедрять свои решения в продакшн, то мы будем рады видеть вас в нашей компании.\n Мы развиваем ML-модели ранжирования поиска и рекомендаций, которые позволяют находить работу людям со всей страны. Наша основная задача состоит в количественном росте продуктовых метрик, таких как кол-во откликов/приглашений, все гипотезы строго проверяются с помощью A/B-экспериментов. Наши решения работают в online режиме под большой нагрузкой на поисковом кластере из 100+ машин. Мы работаем в продуктовых кросс-функциональных (frontend/backend/data science) командах по гибким методологиям.\n Требования\n Опыт реализации и применения моделей машинного обучения в продакшн;\n\n Понимание основных методов и алгоритмов Machine Learning;\n\n Знание принципов работы нейросетевых моделей для обработки текста;\n\n Опыт в ранжировании, рекомендациях, а также в nlp-задачах будет большим плюсом;\n\n Уверенное владение Python (numpy, scipy, pytorch, sklearn), приветствуется знание и опыт с Java;\n\n Алгоритмическая подготовка: знание основных алгоритмов и структур данных;\n\n Желателен опыт работы с различными источниками данных: SQL, Cassandra, Hive, Presto, Kafka, etc.;\n\n Понимание и опыт работы с A/B-экспериментами;\n\n Обязанности\n Развитие моделей поискового ранжирования и рекомендательных систем;\n\n Тюнинг существующих моделей, feature engineering, а также построение новых решений с нуля;\n\n Прототипирование и доведение своих решений до продакшна на python;\n\n Полная поддержка своих моделей: от написания запроса для выгрузки обучающей выборки из хранилищ данных до анализа результатов A/B-экспериментов и переключения всех пользователей на новый функционал;\n\n Условия\n Возможность выбора места работы: удаленно или из офиса;\n\n Гибкий график рабочего дня;\n\n Оформление в соответствии с ТК РФ, «Белая» заработная плата, выплачиваемая точно в срок;\n\n Корпоративное ДМС с первого месяца работы (решаем вопросы со здоровьем быстро и удобно);\n\n Возможность профессионального развития, обучение за счет компании, участие в специализированных конференциях;","description_format":"text","description_chars":2248,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"Russian","level":"Advanced (C1)","optional":false}]},"benefits":[],"hiring_locations":[{"name":"Russia","iso":"RU","kind":"country"},{"name":"Belarus","iso":"BY","kind":"region"},{"name":"Kazakhstan","iso":"KZ","kind":"region"},{"name":"Kyrgyzstan","iso":"KG","kind":"region"},{"name":"Armenia","iso":"AM","kind":"region"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Job Boards & Aggregators","Recruiting Software & ATS"],"lifecycle":[{"event":"open","at":"2026-08-25T14:11:08Z"},{"event":"open","at":"2026-09-08T09:19:20Z"},{"event":"6","at":"2026-09-11T13:24:43Z"},{"event":"open","at":"2026-09-11T13:45:56Z"},{"event":"close","at":"2026-09-14T10:59:32Z"},{"event":"restore","at":"2026-09-14T22:45:53Z"},{"event":"6","at":"2026-09-23T05:03:27Z"},{"event":"6","at":"2026-09-28T14:27:13Z"},{"event":"6","at":"2026-10-07T12:58:35Z"}],"visa":[],"liveness":{"score":8,"band":"cold","label":"Long shot","p_open":1,"p_active":0.236,"p_room":0.35,"age_days":24,"expected_fill_days":8,"reasons":["conf:2","repost:4","stale_co","velocity","ghost","win:tail"],"computed_at":"2026-11-01T06:10:25Z"},"pay":{"stated_usd_annual":61812,"is_top_pay":false},"html_url":"https://alion.io/job/headhunter-senior-data-scientist-komanda-rekomendatsii","json_url":"https://alion.io/job/headhunter-senior-data-scientist-komanda-rekomendatsii.json","meta":{"generated_at":"2026-11-01T08:14:16Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","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":12841,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-02T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":61857},"rest":"https://alion.io/mcp/rest/get_company?id=61857"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fheadhunter-senior-data-scientist-komanda-rekomendatsii"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fheadhunter-senior-data-scientist-komanda-rekomendatsii"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fheadhunter-senior-data-scientist-komanda-rekomendatsii"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/headhunter-senior-data-scientist-komanda-rekomendatsii\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fheadhunter-senior-data-scientist-komanda-rekomendatsii"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":161239}},{"tool":"search_jobs","arguments":{"company":"hh.ru","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":161239},"note":"people open to offers who fit this vacancy"}],"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"}}