{"id":3201803,"url":"https://alion.io/job/itds-poland-senior-backend-developer-node-js-go-expertise-4","title":"Senior Backend Developer – Node.js & Go Expertise","company":{"id":879,"name":"ITDS Poland","domain":"itds.pl","url":"https://alion.io/company/itds","size_band":null,"is_staffing_agency":false,"employer_type":"staffing","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"contractor","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":29610,"max":35700,"currency":"PLN","period":"month","gross":null,"usd_annual":109104},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Go","optional":false},{"name":"Node JS","optional":false},{"name":"Rest API","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-10-24T06:15:16Z","employer_posted_date":null,"last_verified_at":"2026-10-24T06:15:16Z","board_verified":false,"closed_at":null,"days_open":12,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":12},"description":"Unleash innovation at the forefront of financial technology — shape the future of banking telemetry!\nKrakow-based opportunity with hybrid work model (6 days per month in the office).\nAs a Senior Backend Developer, you will be working for our client on a groundbreaking project, designed as a startup to gather and analyze product telemetry across Tech. Your work will directly influence how real-time application data is transformed into actionable insights for customers, contributing to a dynamic platform that drives digital excellence and innovation.\nYour main responsibilities:\nDesign and develop high-performance REST APIs to support telemetry data collection and analysis\nContribute to architecture decisions and best development practices\nCollaborate with stakeholders to gather and implement telemetry requirements for products\nWork with AI-related tooling, chatbots, and agentic approaches within the platform\nParticipate in long-term development efforts with a team of 10, primarily Poland-based\nEngage directly with clients, translating their needs into technical solutions\nEnsure scalable, reliable, and efficient backend systems\nYou're ideal for this role if you have:\nAt least 5 years of experience in backend development\nStrong hands-on experience with Node.js and REST API development\nProven ability to build high-performance REST APIs\nGood communication skills with readiness to interact directly with clients\nExperience with AI integrations, chatbots, and agentic architectures\nIt is a strong plus if you have:\nExperience with Go (Golang) — highly beneficial but not mandatory\nLanguage Required for the role:\nEnglish — communicative proficiency required\nEligibility to work in Europe:\nOnly candidates with an existing legal right to work in the European Union will be considered for this role.\n#MAKEYourCareerBETTER\nInterested? 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