{"id":3337976,"url":"https://alion.io/job/pse-innowacje-senior-sqletl-developer-mk","title":"Senior SQL/ETL Developer (m/k)","company":{"id":2606,"name":"PSE Innowacje","domain":"pse-innowacje.pl","url":"https://alion.io/company/pse-innowacje-sp-z-o-o","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":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":["Wrocław, Poland"],"countries":["PL"],"hiring_countries":["PL"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":62000,"max_usd":93000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":71},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache NiFi","optional":false},{"name":"ETL/ELT","optional":false},{"name":"Linux","optional":false},{"name":"Python","optional":false},{"name":"Rest API","optional":false},{"name":"SQL","optional":false},{"name":"Azure","optional":true}],"status":"live","first_seen_at":"2026-10-27T13:06:17Z","employer_posted_date":null,"last_verified_at":"2026-10-27T13:06:17Z","board_verified":false,"closed_at":null,"days_open":3,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":3},"description":"Senior SQL/ETL Developer (m/k)\n Osoba będzie świadczyć usługi w zakresie projektowania, budowania oraz optymalizacji baz danych wraz z wystawianiem optymalnych endpointów api.\n Zakres usług:\nProjektowanie i tworzenie baz danych – głównie PostreSQL\n\nProjektowanie i tworzenie api we współpracy z FrontEndem\n\nBudowanie przepływów w Apache NIFI\n\nOptymalizacja Baz Danych\n\nPraca nad wymaganiami dot. Api, infrastruktury oraz baz danych dla nowych rozwiązań\n\n Oczekiwania:\nDoświadczenie: min. 6 lat doświadczenia w pracy nad bazami danych\n\nObszary świadczonych usług: Polska\n\nZnajomości języków obcych: Angielski min. B2\n\nSamodzielność i odpowiedzialność\n\nEkspercka Znajomość Apache NiFi\n\nEkspercka znajomość relacyjnych baz danych – najlepiej PostgreSql\n\nUmiejętność zaawansowanego modelowania danych\n\nPodstawowa znajomość Python – tworzenie skryptów\n\nZnajomość podstaw Linux - bash\n\nCo najmniej 5 letnie Doświadczenie w budowaniu procesów ETL\n\nUmiejętność analitycznego myślenia\n\nUmiejętność projektowania oraz implementacji przepływów danych w ramach Apache NiFi na poziomie eksperckim\n\nEkspercka Znajomość zagadnień ETL oraz przetwarzania danych\n\nCo najmniej 5 letnie doświadczenie w optymalizacji baz danych\n\nUmiejętność projektowania oraz implementacji aplikacji REST API\n\nStrojenie wydajnościowe i optymalizacja zapytań SQL dla dużych wolumenów danych\n\nDodatkowym atutem będzie:\n\nZnajomość Azure API management\n\nZnajomość protokołu Amazon S3\n\nZnajomość branży elektroenergtycznej\n\nWiedza z zakresu księgowości, rachunkowości zarządczej i controllingu\n\n Z naszej strony zapewniamy:\nUdział w ciekawych projektach mających strategiczny wpływ na sektor energetyczny w Polsce i na świecie\n\nŚwiadczenie usług w przyjaznej atmosferze i możliwość nabycia cennego doświadczenia\n\nSprzęt służbowy\n\nTech stack\nSQL\nApache\nLinux","description_format":"text","description_chars":1816,"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":[{"name":"Poland","iso":"PL","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Power Grid","Smart Grid"],"lifecycle":[{"event":"open","at":"2026-10-27T14:25:00Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":2,"expected_fill_days":29,"reasons":["seen:2","velocity","win:early"],"computed_at":"2026-10-30T05:48:23Z"},"pay":null,"html_url":"https://alion.io/job/pse-innowacje-senior-sqletl-developer-mk","json_url":"https://alion.io/job/pse-innowacje-senior-sqletl-developer-mk.json","meta":{"generated_at":"2026-10-31T00:42:29Z","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":961,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-01T00:00:00Z"}},"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":2606},"rest":"https://alion.io/mcp/rest/get_company?id=2606"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fpse-innowacje-senior-sqletl-developer-mk"},{"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%2Fpse-innowacje-senior-sqletl-developer-mk"},{"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%2Fpse-innowacje-senior-sqletl-developer-mk"},{"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/pse-innowacje-senior-sqletl-developer-mk\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fpse-innowacje-senior-sqletl-developer-mk"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3337976}},{"tool":"search_jobs","arguments":{"company":"pse-innowacje.pl","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3337976},"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"}}