{"id":3679109,"url":"https://alion.io/job/jetbridge-senior-software-engineer-go","title":"Senior Software Engineer, Go","company":{"id":4428830,"name":"JetBridge","domain":"jetbridge.com","url":"https://alion.io/company/jetbridge-2","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"B","score":75,"open_postings":3,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-11-04T06:34:25Z"}},"role":"Backend","role_family":"Backend","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":390000,"max":450000,"currency":"PLN","period":"year","gross":null,"usd_annual":114135},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"Claude Code","optional":false},{"name":"GCP","optional":false},{"name":"Stripe","optional":false},{"name":"TypeScript","optional":false}],"status":"live","first_seen_at":"2026-11-03T09:58:00Z","employer_posted_date":null,"last_verified_at":"2026-11-03T09:58:00Z","board_verified":false,"closed_at":null,"days_open":0,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":0},"description":"Our client is a fast-growing data streaming platform that’s becoming the data layer for AI agents running in production.\nYou’ll own the client’s cloud billing and payments systems end to end, as part of a new team in Warsaw. That covers usage-based billing (built on Metronome) and credit card payments (built on Stripe). You’ll start by learning and stabilizing the current setup, then drive the roadmap so metering, invoicing, and payments stay accurate and reliable as new products launch. You’ll work closely with finance, product, and the wider engineering team.\nZakres obowiązków\nOwn the design, build, operation, and evolution of the usage-based billing and payment systems\nBuild correctness-critical metering, billing, and payment workflows with strong idempotency, reconciliation, and auditability\nTake over existing systems from other teams, learn them in depth, and move them forward\nTurn product and commercial requirements into clear technical designs and shipped work\nPartner with finance and customer success on invoicing accuracy and revenue correctness, and with product and engineering on the roadmap\nMaintain high standards for security and the privacy of personal data\nJoin the on-call rotation once you’re up to speed\nWymagania\nStrong software engineering fundamentals and a track record of owning and reliably delivering features and components\nExperience building, running, and supporting large-scale distributed systems\nBackend proficiency in Go (or a comparable systems language, plus willingness to learn Go)\nExperience with at least one major cloud platform (AWS, Azure, or GCP)\nComfortable maintaining customer-facing web UIs (React/TypeScript or similar), with support from designers and AI tools\nProduction experience using AI-assisted development tools (e.g., Claude Code, Codex)\nClear written and spoken English, and comfort working async with a globally distributed team\nTech stack\nGolang\nGo\nCloud platform\nAWS\nAzure\nGCP\nReact\nTypeScript\nAI","description_format":"text","description_chars":1973,"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":["Artificial 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