{"id":2924259,"url":"https://alion.io/job/seedtag-junior-data-scientist","title":"Junior Data Scientist","company":{"id":53828,"name":"Seedtag","domain":"seedtag.com","url":"https://alion.io/company/seedtag","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Teamtailor","truth_index":null},"role":"Data Science","role_family":"Data Science","seniority":"junior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":["DE","FR","GB","BE","IT","NL","ES"],"hiring_countries_total":7,"salary":null,"salary_estimate":{"min_usd":57000,"max_usd":146000,"period":"year","method":"global_role_seniority_cell","sample_n":633},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agentic Workflows","optional":false},{"name":"AI Agents","optional":false},{"name":"dbt","optional":false},{"name":"Embeddings","optional":false},{"name":"Function Calling","optional":false},{"name":"Git","optional":false},{"name":"LLM","optional":false},{"name":"Machine Learning","optional":false},{"name":"Python","optional":false},{"name":"SQL","optional":false},{"name":"Structured Outputs","optional":false},{"name":"Trino","optional":false},{"name":"Claude","optional":true},{"name":"Computer Vision","optional":true},{"name":"GCP","optional":true},{"name":"Google BigQuery","optional":true},{"name":"LangChain","optional":true},{"name":"LangGraph","optional":true},{"name":"Model Context Protocol","optional":true},{"name":"NLP","optional":true},{"name":"NumPy","optional":true},{"name":"OpenAI","optional":true},{"name":"Pydantic AI","optional":true},{"name":"Scikit-learn","optional":true}],"status":"live","first_seen_at":"2026-10-15T09:36:58Z","employer_posted_date":"2026-10-15","last_verified_at":"2026-10-22T04:43:11Z","board_verified":true,"closed_at":null,"days_open":7,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":7},"description":"We’re looking for a Junior Data Scientist to join our tech team and help build the future of neuro-contextual advertising at global scale.\nWho We Are\nAt Seedtag, our mission is to transform advertising by proving that effectiveness and user privacy can truly coexist.\nAs the leading Neuro-Contextual Advertising Company, we combine Artificial Intelligence, Natural Language Processing, Computer Vision, and neuroscience to understand not only what content is about, but how it makes people feel and what they intend to do next.\nOur proprietary AI, Liz, enables brands to connect with audiences across the open web and Connected TV without cookies or user tracking. Founded in 2014 by two ex-Googlers, Seedtag has grown to 500+ Seedtaggers in 17 countries, backed by €250M in funding, and operates today as a global ad-tech leader.\nIf you enjoy solving complex engineering challenges and building AI-driven systems at scale, you’ll feel right at home here.\nYour Challenge\nAs our Junior Data Scientist, you will join our Insights team to transform contextual, audience, and campaign data into actionable insights for clients and commercial teams, leveraging Liz, Seedtag's AI.\nYour main responsibilities will include:\nData Pipelines & Analytics: Build and maintain pipelines to analyse campaign performance, audience behaviour, and contextual data across the open web and CTV.\n\nAnalytical Models: Develop models for audience profiling, content analysis, campaign comparisons, and pre-campaign planning.\n\nData Products: Turn analyses into scalable data products using tools such as dbt, Trino, and Airflow, ensuring data quality and reliability.\n\nAI Agents & Automation: Prototype LLM-based agents and workflows using techniques such as embeddings, classification, clustering, and summarisation.\n\nExperimentation & Evaluation: Design and evaluate experiments to ensure automated insights are accurate, reliable, and actionable.\n\nData Quality & Troubleshooting: Investigate data anomalies, identify root causes, and improve pipeline reliability.\n\nData Storytelling: Communicate findings through clear visualisations and actionable recommendations for Product, Sales, and clients.\n\nOur Core Values\nOutcome over Output\nWe measure success by impact and value, not by volume of features or lines of code.\nFailure Is Allowed, Learning Is a Must\nExperimentation is key to innovation. We test early, iterate often, and learn fast.\nWe Are All Scouts\nWe take ownership and leave things better than we found them.\nWe Are Data-Driven\nData informs our decisions and helps us continuously improve our systems and results.\nTech Stack\nYou'll work with modern data and AI technologies to build scalable insights products.\nOur stack includes:\nLanguages & Libraries: Python, SQL, pandas, NumPy, scikit-learn.\n\nData Engineering: dbt, Trino, Airflow.\n\nAI & Machine Learning: LLMs, AI agents, embeddings, classification, clustering, NLP.\n\nAgent Frameworks: LangGraph, PydanticAI, MCP, OpenAI and Claude Agent SDKs.\n\nCloud & Data Platforms: GCP, BigQuery.\n\nDevelopment Tools: Git, unit testing, code review.\n\nWhat You’ll Need to Succeed\n0-2 years of experience in Data Science, Analytics, or Machine Learning, including internships, research, or personal projects.\n\nDegree in Computer Science, Mathematics, Statistics, Engineering, or a related quantitative field, or equivalent practical experience.\n\nStrong Python and SQL skills, with a solid understanding of statistics, machine learning, and model evaluation.\n\nHands-on experience building LLM-based agents or agentic workflows, including tool calling, structured outputs, or multi-step processes.\n\nGood software engineering practices, including Git, testing, and clean, reproducible code.\n\nStrong analytical thinking and data storytelling skills, with the ability to communicate insights to non-technical stakeholders.\n\nCurious, proactive, and eager to learn, with professional working proficiency in English.\n\nWhy Join Seedtag?\nA key moment of growth with real ownership and global impact.\n\nFlexible work model with 100% remote or hybrid options.\n(Remote contracts available in Spain, Italy, UK, Belgium, Netherlands, France, and Germany.)\n\nContinuous learning through a learning platform and optional language classes.\n\nA supportive, trust-based culture that values well-being.\n\nTeam activities, offsites, and opportunities to connect beyond work.\n\nAdditional Perks\nHome office setup budget up to €1,000\n\nPaid trips to our HQ in Madrid\n\nMacBook Pro M3\n\nReady to Join the Seedtag Adventure?\nAt Seedtag, we create an environment where everyone can thrive. If you need accommodations during the hiring process, let us know and we’ll ensure a positive experience.\nSend us your CV and let’s build the future of neuro-contextual advertising together.","description_format":"text","description_chars":4775,"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":"English","level":"Upper-Intermediate (B2)","optional":false}]},"benefits":["Apple Macbook","Continuous learning","Flexible schedule","Home office"],"hiring_locations":[{"name":"Germany","iso":"DE","kind":"country"},{"name":"France","iso":"FR","kind":"country"},{"name":"United Kingdom","iso":"GB","kind":"country"},{"name":"Belgium","iso":"BE","kind":"country"},{"name":"Italy","iso":"IT","kind":"country"},{"name":"Netherlands","iso":"NL","kind":"country"},{"name":"Spain","iso":"ES","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Artificial Intelligence","Advertising"],"lifecycle":[{"event":"open","at":"2026-10-20T13:03:11Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":6,"expected_fill_days":45,"reasons":["conf:1","velocity","win:early","comp:junior"],"computed_at":"2026-10-22T06:10:10Z"},"pay":null,"html_url":"https://alion.io/job/seedtag-junior-data-scientist","json_url":"https://alion.io/job/seedtag-junior-data-scientist.json","meta":{"generated_at":"2026-10-22T12:37:58Z","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":11193,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-23T00:00:00Z"}},"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":53828},"rest":"https://alion.io/mcp/rest/get_company?id=53828"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fseedtag-junior-data-scientist"},{"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%2Fseedtag-junior-data-scientist"},{"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%2Fseedtag-junior-data-scientist"},{"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/seedtag-junior-data-scientist\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fseedtag-junior-data-scientist"}]}