{"id":3686360,"url":"https://alion.io/job/infolet-full-stack-development-engineer-1030","title":"Full Stack Development Engineer (10/30)","company":{"id":4160520,"name":"Infolet","domain":"infolet.pl","url":"https://alion.io/company/infolet","size_band":"11-50","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Recruitify","truth_index":{"grade":"B","score":75,"open_postings":3,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":22,"computed_at":"2026-11-06T05:58:05Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"hybrid","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":{"min":20000,"max":23500,"currency":"PLN","period":"month","gross":null,"usd_annual":71520},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Git","optional":false},{"name":"Node JS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"SQL","optional":false},{"name":"Angular","optional":true},{"name":"Go","optional":true},{"name":"JavaScript","optional":true},{"name":"React.js","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-11-03T11:15:33Z","employer_posted_date":"2026-11-03","last_verified_at":"2026-11-06T07:29:11Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":3},"description":"SUMMARY\n120 - 140 PLN/h (B2B)\n14 500 - 17 000 PLN brutto (UOP)\nKraków (Hybrid - 2 days office / 3 days remote)\nSenior\nProject\nJoin an international technology team developing a product analytics and telemetry platform. The solution enables application teams to collect and analyse behavioural and performance data, monitor user journeys, measure product adoption and improve user satisfaction.\nYou will be part of a newly formed team responsible for developing and supporting solutions throughout the entire software delivery lifecycle.\nYou will\nParticipate in software architecture design and technical decision-making\nDevelop scalable solutions using best practices and design patterns\nAnalyse business and technical requirements, identify potential improvements and recommend appropriate solutions\nCreate clear and comprehensive technical documentation\nDevelop application prototypes to validate concepts and proposed designs\nManage changes throughout the Service Management lifecycle\nContribute to automation and continuous improvement of service management processes\nCollaborate with internal stakeholders to understand their needs and deliver appropriate technical solutions\nSupport products throughout their lifecycle, including development, testing, release, and ongoing maintenance\nMust have\nAt least 5 years of professional experience in backend development\nStrong experience with Node.js and Web APIs\nGood knowledge of database design and SQL, preferably with PostgreSQL\nUnderstanding of the Software Development Lifecycle (SDLC)\nExperience working with Git\nStrong problem-solving skills and attention to detail\nGood communication and interpersonal skills\nFluent in English and Polish\nNice to have\nExperience with Go\nKnowledge of JavaScript frameworks, particularly React or Angular 2+\nKnowledge of HTML5 and CSS\nExperience supporting production environments\nUnderstanding of Service Management processes and related practices\nOur offer\nExtended medical care (over 2000 medical facilities in Poland, 80 in Kraków) for you and your family\nMultisport Benefit card\n Life 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