{"id":2114990,"url":"https://alion.io/job/sii-senior-python-engineer-fmx","title":"Senior Python Engineer (f/m/x)","company":{"id":1387,"name":"Sii","domain":"sii.pl","url":"https://alion.io/company/sii","size_band":"5000+","is_staffing_agency":false,"employer_type":"staffing","is_intermediary":false,"listed_via":null,"ats_vendor":"Career sitemap","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Kraków, Poland"],"countries":["PL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":62000,"max_usd":103000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":339},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Amazon Redshift","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"BigQuery","optional":false},{"name":"Confluence","optional":false},{"name":"Django","optional":false},{"name":"Docker","optional":false},{"name":"ETL/ELT","optional":false},{"name":"FastAPI","optional":false},{"name":"Flask","optional":false},{"name":"GCP","optional":false},{"name":"Git","optional":false},{"name":"Google BigQuery","optional":false},{"name":"JavaScript","optional":false},{"name":"Jira","optional":false},{"name":"Kubernetes","optional":false},{"name":"Linux","optional":false},{"name":"Python","optional":false},{"name":"Rest API","optional":false},{"name":"SQL","optional":false}],"status":"live","first_seen_at":"2026-09-22T10:14:47Z","employer_posted_date":"2026-09-22","last_verified_at":"2026-10-16T14:00:26Z","board_verified":true,"closed_at":null,"days_open":24,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":24},"description":"This translation is generic and may include errors.\nShow original text\n\nThis offer base language is English.\nTranslate into Polish.\nTechnologie i narzędzia\nWymagane\n\nPython\n\nDjango\n\nFastAPI\n\nFlask\n\nAWS\n\nGCP\n\nMicrosoft Azure\n\nSzukamy Senior Python Engineer do naszego zespołu w Krakowie. W tej roli będziesz ściśle współpracować z ekspertami ds. cyberbezpieczeństwa, aby rozwijać i dostarczać rozwiązania programowe, które zwiększają bezpieczeństwo naszych usług bankowych. Będziesz zaangażowany w różnorodne działania inżynieryjne, w tym budowanie usług REST API, rozwijanie potoków danych oraz automatyzację procesów testowych. Jeśli pasjonuje Cię wykorzystanie swojej wiedzy z zakresu Pythona w dynamicznym środowisku, ta oferta jest dla Ciebie.\nTwoje zadania\nProjektowanie, rozwijanie i wdrażanie usług REST API dla użytkowników wewnętrznych\nBudowanie potoków danych i zadań ETL w celu wsparcia integracji danych\nWspółpraca z ekspertami ds. cyberbezpieczeństwa w celu doprecyzowania wymagań i proponowania nowych rozwiązań\nPrzestrzeganie zasad projektowania mikroserwisów w celu zapewnienia skalowalności i łatwości utrzymania usług\nPrzeprowadzanie rozwiązywania problemów na poziomie L2/L3 oraz naprawa błędów w istniejących usługach\nPisanie zautomatyzowanych przypadków testowych i dokumentacji technicznej wspierającej dostarczony kod\nPrzeprowadzanie przeglądów kodu i mentoring młodszych programistów w zespole\nIdentyfikowanie wąskich gardeł w procesie rozwoju i proponowanie usprawnień\nWymagania\nMinimum 5-letnie doświadczenie w rozwoju aplikacji webowych w Pythonie z wykorzystaniem frameworków takich jak FastAPI, Flask lub Django\nSilne zrozumienie architektur mikroserwisowych oraz koncepcji takich jak CQRS, SAGA i event sourcing\nDoświadczenie z narzędziami do konteneryzacji i orkiestracji, takimi jak Docker i Kubernetes\nZnajomość programowania w SQL z umiejętnością konstruowania złożonych zapytań\nZnajomość technologii hurtowni danych w chmurze, takich jak BigQuery i RedShift\nSilne umiejętności administracyjne w systemie Linux oraz solidne zrozumienie koncepcji sieciowych\nZnajomość Gita i różnych strategii gałęzi\nDobra znajomość rozwoju frontendowego z wykorzystaniem HTML, CSS i JavaScript\nZnajomość procesów Agile i DevSecOps, z doświadczeniem w korzystaniu z narzędzi takich jak Jira i Confluence\nJęzyk angielski na poziomie zaawansowanym\nGotowość do pracy z biura w Krakowie sześć razy w miesiącu\nNr oferty JOB-QVBYQ\nSii zapewnia, że wszystkie decyzje związane z zatrudnieniem są podejmowane wyłącznie na podstawie kwalifikacji i kompetencji. Zobowiązujemy się do równego traktowania wszystkich osób, niezależnie od cech chronionych, oraz promowania zróżnicowanego i integracyjnego środowiska pracy.\nTechnologies & tools\nMust have\n\nPython\n\nDjango\n\nFastAPI\n\nFlask\n\nAWS\n\nGCP\n\nMicrosoft Azure\n\nWe are looking for a Senior Python Engineer to join our team in Cracow. In this role, you will work closely with cybersecurity experts to develop and deliver software solutions that enhance security for our banking services. You will engage in a variety of engineering activities, including building REST API services, developing data pipelines, and automating testing processes. If you are passionate about leveraging your Python expertise in a dynamic environment, this opportunity is for you.\nYour tasks\nDesigning, developing, and deploying REST API services for internal users\nBuilding data pipelines and ETL jobs to support data integration\nCollaborating with cybersecurity experts to refine requirements and propose new solutions\nAdhering to microservice design principles to ensure scalability and maintainability of services\nConducting L2/L3 troubleshooting and bug fixing for existing services\nWriting automated test cases and technical documentation to support delivered code\nPerforming peer reviews and mentoring junior developers in the team\nIdentifying bottlenecks in the development process and proposing improvements\nRequirements\nMinimum 5 years of experience in Python web development using frameworks such as FastAPI, Flask, or Django\nStrong understanding of microservice architectures and concepts like CQRS, SAGA, and event sourcing\nExperience with containerization and orchestration tools like Docker and Kubernetes\nProficient in SQL programming with the ability to construct complex queries\nKnowledge of cloud data warehouse technologies such as BigQuery and RedShift\nStrong sysadmin skills in Linux and a solid understanding of networking concepts\nFamiliarity with Git and various branching strategies\nGood understanding of frontend development using HTML, CSS, and JavaScript\nKnowledge of agile and DevSecOps processes, with experience using tools like Jira and Confluence\nAdvanced level of English\nWillingness to work from the Kraków office six times per month\nJob no. JOB-QVBYQ\nSii zapewnia, że wszystkie decyzje związane z zatrudnieniem są podejmowane wyłącznie na podstawie kwalifikacji i kompetencji. Zobowiązujemy się do równego traktowania wszystkich osób, niezależnie od cech chronionych, oraz promowania zróżnicowanego i integracyjnego środowiska pracy.","description_format":"text","description_chars":5100,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Outsourcing & Dedicated Teams","Engineering Services","IT Staffing & Staff Augmentation"],"lifecycle":[{"event":"open","at":"2026-10-08T23:16:07Z"}],"visa":[],"liveness":{"score":60,"band":"ok","label":"Likely open","p_open":1,"p_active":0.796,"p_room":0.75,"age_days":23,"expected_fill_days":34,"reasons":["conf:2","velocity","win:late","comp:brand"],"computed_at":"2026-10-16T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/sii-senior-python-engineer-fmx","json_url":"https://alion.io/job/sii-senior-python-engineer-fmx.json","meta":{"generated_at":"2026-10-16T17:00:09Z","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":1581,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-17T00:00:00Z"}},"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":1387},"rest":"https://alion.io/mcp/rest/get_company?id=1387"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsii-senior-python-engineer-fmx"},{"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%2Fsii-senior-python-engineer-fmx"},{"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%2Fsii-senior-python-engineer-fmx"},{"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/sii-senior-python-engineer-fmx\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsii-senior-python-engineer-fmx"}]}