{"id":2138617,"url":"https://alion.io/job/payback-principal-ai-data-scientist-team-lead","title":"Principal AI & Data Scientist (Team Lead)","company":{"id":4372772,"name":"Payback","domain":"payback.com","url":"https://alion.io/company/payback-3","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"AI/ML","role_family":"AI/ML","seniority":"lead","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Warsaw, Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":66000,"max_usd":130000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":15},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"BigQuery","optional":false},{"name":"CI/CD","optional":false},{"name":"dbt","optional":false},{"name":"GCP","optional":false},{"name":"Google BigQuery","optional":false},{"name":"Machine Learning","optional":false},{"name":"Python","optional":false},{"name":"Terraform","optional":false},{"name":"Vertex AI","optional":false}],"status":"live","first_seen_at":"2026-10-08T16:00:12Z","employer_posted_date":null,"last_verified_at":"2026-10-08T16:00:12Z","board_verified":false,"closed_at":null,"days_open":12,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":12},"description":"Your responsibilities:\nAs a Team Lead, you are responsible for the technical and disciplinary leadership of our Data Science team.\n\nYou work hands-on in an cross-functional team and develop innovative data and AI products using machine learning methods.\n\nYou are responsible for the entire lifecycle of machine learning models, from exploratory data analysis and feature engineering, to the selection and training of suitable algorithms, to the evaluation and validation of the models.\n\nYou work on the Google Cloud Platform (GCP) and guide the deployment of ML models into production.\n\nAs a technical expert, you establish best practices in the fields of data science, machine learning, and MLOps. In doing so, you proactively evaluate and integrate new methods and always stay up-to-date with the latest technology.\n\nYou actively care for the personal and professional development of your team members.\n\nYou work closely with business stakeholders to identify, evaluate, and implement concrete solutions for AI products.\n\nYour Profile:\nYou have several years of professional experience in the development and operationalization of data science and AI products.\n\nYou possess outstanding knowledge of Python, especially for data analysis, data engineering, and ML model development.\n\nYou have deep hands-on experience with the Google Cloud Platform (GCP) and its relevant services (e.g. Vertex AI, BigQuery, Cloud Storage).\n\nYou have sound knowledge and practical experience in MLOps, CI/CD, and ideally the use of tools like Terraform and dbt.\n\nYou understand and master the entire lifecycle of machine learning models – from experimentation, training, deployment, monitoring to retraining strategies – and can implement them efficiently.\n\nYou have the ability and experience to lead and foster a team, motivate employees, and support a collaborative working style.\n\nYou are characterized by strong analytical skills, a structured approach to work, and a proactive attitude in solving complex problems.\n\nExcellent communication skills and fluent English complete your profile.\n\n*Please send your cv in English\n\nHow about?\nEmployment contract? 📝\nOf course. With us, you do not have to worry about stable employment.\nBenefits? 🏋️♀️\nWe have them! Among others: corporate incentive program, sport card, private medical care.\nLunch card? 🍽️\nWith an extended cooperation and a permanent contract, you will receive additional funds to use for meal purchases.\nWorking in a hybrid model? 💻\nOf course! You work with us 2 days a week from home.\nWork wherever you want? 🌍\nAt PAYBACK, you have the opportunity. Work 100% remotely, even from European countries for up to 10 days a year.\nFlexible working hours? ⏰\nSounds great! We start working between 8 to 10.\nTrainings? 🧠\nOf course. We provide training to develop both hard and soft skills.\nConvenient location? 🏠\nSure! We invite you to our new office at Rondo Daszyńskiego, but we are currently also working remotely.\nDress code? 👕\nWe definitely say no. There are no rigid dress code rules in our company—sneakers are more than welcome!\nFriendly atmosphere at work? 🤝🏻\nYes! At PAYBACK, people are the most important asset.\nSomething is missing? 🖐\nOpen communication is our priority, so dare to ask!\nTech stack\nDevOps\nGit\nSpringBoot\nJenkins\nTesting\nKanban\nLinux\nGoogle Cloud Build\nEnglish\nSQL","description_format":"text","description_chars":3331,"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":[]},"benefits":["Flexible schedule","Professional development"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-09T02:26:00Z"}],"visa":[],"liveness":{"score":77,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.858,"p_room":0.9,"age_days":11,"expected_fill_days":26,"reasons":["seen:11","velocity","win:mid"],"computed_at":"2026-10-20T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/payback-principal-ai-data-scientist-team-lead","json_url":"https://alion.io/job/payback-principal-ai-data-scientist-team-lead.json","meta":{"generated_at":"2026-10-21T05:11:46Z","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":7680,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-22T00:00:00Z"}},"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":4372772},"rest":"https://alion.io/mcp/rest/get_company?id=4372772"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fpayback-principal-ai-data-scientist-team-lead"},{"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%2Fpayback-principal-ai-data-scientist-team-lead"},{"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%2Fpayback-principal-ai-data-scientist-team-lead"},{"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/payback-principal-ai-data-scientist-team-lead\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fpayback-principal-ai-data-scientist-team-lead"}]}