{"id":1200010,"url":"https://alion.io/job/mindbox-data-science-specialist","title":"Data Science Specialist","company":{"id":53456,"name":"Mindbox","domain":"mindboxgroup.com","url":"https://alion.io/company/mindbox","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Traffit","truth_index":null},"role":"Data Science","role_family":"Data Science","seniority":null,"employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":[],"countries":[],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"LightGBM","optional":false},{"name":"Machine Learning","optional":false},{"name":"pySpark","optional":false},{"name":"Python","optional":false},{"name":"Spark","optional":false},{"name":"SQL","optional":false},{"name":"XGBoost","optional":false}],"status":"live","first_seen_at":"2026-09-24T10:09:43Z","employer_posted_date":"2026-09-24","last_verified_at":"2026-10-07T02:37:04Z","board_verified":true,"closed_at":null,"days_open":12,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":12},"description":"At Mindboxwe connect top IT talents with technology projects for leading enterprises across Europe.\nWe are seeking a Data Science Specialist who will play a key role in supporting our ML team. You will work on developing and validating advanced models, performing feature engineering, and ensuring data quality for analytics initiatives.\nIf you are passionate about Machine Learning, love turning complex data into actionable insights, and want to be part of a highly collaborative team - this role is for you.\nSounds like your kind of challenge?\n#LI - Hybrid: 8x/msc from the office in Kraków\nResponsibilities\nFlexible cooperation model\nHybrid work setup - 8x/msc from the office in Kraków\nCollaborative team culture - work alongside experienced professionals eager to share knowledge \nContinuous development - access to training platforms and growth opportunities \nComprehensive benefits - including Interpolska Health Care, Multisport card, Warta Insurance, and more \nHigh quality equipment - laptop and essential software provided \nRequirements\nSupport the ML team in end-to-end processes including feature engineering, model selection, training, validation, and testing.\n\nAnalyze large and complex datasets, ensuring they are optimized for project objectives.\n\nWork closely with Data Scientists and Data Engineers to deliver high-quality analytical solutions.\n\nContribute to continuous improvement of ML pipelines and automation processes.\n\nNote:Detailed project information will be shared during the recruitment process.\nBenefits\nStrong expertise in classical ML pipelines, including hands-on experience in model lifecycle management.\nProficiency in feature engineering techniques and experience with models such as:XGBoost, LightGBM, MLP, Autoencoders, etc.\n\n Advanced SQL skills (both in standard language and through Python APIs, e.g., PySpark, pandas).\nKnowledge of Apache Spark will be highly appreciated.\nYou are detail-oriented, diligent, and an excellent communicator.\nJoining this project you’llbecome part of Mindbox - a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. 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