{"id":2944402,"url":"https://alion.io/job/acaisoft-senior-data-engineer-snowflake","title":"Senior Data Engineer (Snowflake)","company":{"id":3913604,"name":"Acaisoft","domain":"acaisoft.com","url":"https://alion.io/company/acaisoft-2","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Data Science","role_family":"Data Science","seniority":"senior","employment_type":"contractor","work_mode":"on_site","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":{"min":140,"max":190,"currency":"PLN","period":"hour","gross":null,"usd_annual":98000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Python","optional":false},{"name":"Snowflake","optional":false},{"name":"SQL","optional":false},{"name":"dbt","optional":true},{"name":"Time Series","optional":true}],"status":"live","first_seen_at":"2026-10-20T12:57:54Z","employer_posted_date":null,"last_verified_at":"2026-10-20T12:57:54Z","board_verified":false,"closed_at":null,"days_open":5,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":5},"description":"Hi there! If you’re seeking a high-impact role within an ambitious and fast-growing software house, you might have just found your perfect match!\n\nWe are seeking a highly skilled and experienced Senior Data Engineer to join our team. You will be working with one of the biggest consumer insights providers in the U.S. \n\nIn this role, you will build and optimise a data evaluation pipeline in Snowflake for a financial data analytics project. The goal is to independently assess the quality and added value of new credit card transaction datasets by comparing company revenue estimates against reported financial results, while ensuring the process is scalable, cost-efficient, and automated.\nYou will take ownership of the pipeline end to end, from data processing and ground truth collection to quality validation and ongoing dataset evaluations.\n\nWorking hours: Availability between 5:00 PM and 10:00 PM CET is essential during onboarding; afterwards, standard hours end around 5/6/7/8 PM CET (depending on the day).Zakres obowiązków\nBuild and maintain a Snowflake-based evaluation pipeline to measure the accuracy of new datasets, both independently and combined with existing data.\nImplement evaluation metrics such as correlation and mean absolute error (MAE) to compare estimated company revenue against reported results.\nOptimise Snowflake performance and compute costs through warehouse sizing, clustering, materialisation, query optimisation, and data pruning.\nDevelop automated processes for collecting, mapping, validating, and maintaining ground truth company revenue data.\nImplement data quality checks, reconciliation rules, and monitoring to identify inconsistencies before they affect downstream reporting.\nEvaluate new datasets as they become available and investigate data quality issues.\nOwn the pipeline end-to-end, making technical decisions and adapting the implementation as project requirements evolve.\nBuild on existing prototypes and previous work to deliver a reliable, production-ready solution.\nWymagania\n\nAbility to work partially within the U.S. time zone (during onboarding: calls up to 10:00 PM CET a few times a week; later: up to 5/6/7/8:00 PM CET)\n6+ years of experience in Data Engineering, with Snowflake as a primary data platform.\nProven hands-on experience optimising Snowflake warehouses and storage for performance and cost efficiency in production environments.\nExperience building and optimising pipelines processing very large datasets, including full transaction-level histories rather than samples.\nStrong SQL and Python skills, with the ability to own data pipelines end to end.\nPractical experience with data quality engineering, including validation, reconciliation, monitoring, and ongoing data reliability.\nNice to have:\nExperience working with financial, market, transaction-level, or time-series data.\nFamiliarity with accuracy and tracking metrics such as correlation and mean absolute error (MAE).\nExperience integrating and maintaining third-party data feeds or working with data licensing and data-sharing arrangements.\nPractice with dbt or similar data transformation frameworks on Snowflake.\n\nTech stack\nPython\nSnowflake\nAWS\nSQL\nAI\nLLMs\nDatabricks","description_format":"text","description_chars":3208,"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":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Consulting & Digital Transformation","Custom Software Development"],"lifecycle":[{"event":"open","at":"2026-10-20T18:21:15Z"}],"visa":[],"liveness":{"score":99,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.99,"p_room":1,"age_days":4,"expected_fill_days":27,"reasons":["seen:4","urgency","velocity","win:early"],"computed_at":"2026-10-25T05:49:26Z"},"pay":{"stated_usd_annual":98000,"is_top_pay":false},"html_url":"https://alion.io/job/acaisoft-senior-data-engineer-snowflake","json_url":"https://alion.io/job/acaisoft-senior-data-engineer-snowflake.json","meta":{"generated_at":"2026-10-25T22:56:47Z","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":32337,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-26T00:00:00Z"}},"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":3913604},"rest":"https://alion.io/mcp/rest/get_company?id=3913604"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Facaisoft-senior-data-engineer-snowflake"},{"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%2Facaisoft-senior-data-engineer-snowflake"},{"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%2Facaisoft-senior-data-engineer-snowflake"},{"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/acaisoft-senior-data-engineer-snowflake\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Facaisoft-senior-data-engineer-snowflake"}]}