{"id":581587,"url":"https://alion.io/job/causa-prima-senior-backend-platform-engineer","title":"Senior Backend / Platform Engineer","company":{"id":456176,"name":"Causa Prima","domain":"causaprima.ai","url":"https://alion.io/company/causa-prima","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Madrid, Spain","Munich, Germany"],"countries":["ES","DE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":54000,"max_usd":114000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":34},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"GDPR","optional":false},{"name":"LLM","optional":false},{"name":"Model Context Protocol","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"TypeScript","optional":false},{"name":"Vault","optional":false},{"name":"Apache Kafka","optional":true},{"name":"Redpanda","optional":true},{"name":"SOC 2","optional":true}],"status":"closed","first_seen_at":"2026-05-04T13:13:10Z","employer_posted_date":"2026-05-04","last_verified_at":"2026-11-04T21:15:36Z","board_verified":false,"closed_at":"2026-11-04T21:15:36Z","days_open":184,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":183},"description":"You'll own the platform our agents run on - event-driven architecture, data pipelines, integrations with customer accounting systems, and the infrastructure that makes everything reliable, auditable, and fast.\nWhat you'll do\nEvent store - Append-only PostgreSQL with tamper-evident hash chaining, real-time event distribution, agent replay and recovery, schema versioning.\n\nCryptographic signature infrastructure - Key management, signature verification on all agent events, approval chains for external actions.\n\nWorkflow Constraint Engine - The gateway that verifies authorization before any external action (email, payment, API call) proceeds.\n\nPII Vault & GDPR compliance - Isolated, encrypted storage for personal data. Right to erasure. Data residency per region.\n\nMulti-tenancy - Row-level security, tenant isolation across all data stores, tenant-scoped LLM API keys.\n\nAuthorization (Cerbos) - Attribute-based access control for agents and humans. Deterministic policy evaluation - LLMs never make auth decisions.\n\nMCP security layer - Authentication, capability-based scoping per partner, and rate limiting for the Model Context Protocol endpoint.\n\nDatabase architecture - PostgreSQL schema design, indexing strategy, performance tuning, read replica topology.\n\nWhat we're looking for\n3+ years experience with Python and/or TypeScript in production.\n\n5+ years designing backend platforms for production systems.\n\nStrong systems design skills - this is the primary requirement. You think in boundaries, contracts, failure modes, and scaling characteristics.\n\nDeep PostgreSQL knowledge - RLS, indexing tradeoffs, event sourcing patterns, schema evolution.\n\nStrong application security architecture skills: encryption models, key management, auth patterns.\n\nExperience with policy-as-code authorization (Cerbos, OPA, Cedar, or similar).\n\nStrong code review skills for security-sensitive AI-generated code.\n\n Nice to have:\nCryptographic primitives in production (digital signatures, hash chaining, application-layer encryption).\n\nEvent streaming platforms (Kurrent, Redpanda, Kafka).\n\nSOC 2 or GDPR compliance engineering.\n\nFintech or regulated-environment background.","description_format":"text","description_chars":2173,"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":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Financial Software & Embedded Finance","AI Agents"],"lifecycle":[{"event":"open","at":"2026-09-09T22:59:00Z"},{"event":"close","at":"2026-11-04T21:15:36Z"}],"visa":[],"liveness":null,"pay":null,"html_url":"https://alion.io/job/causa-prima-senior-backend-platform-engineer","json_url":"https://alion.io/job/causa-prima-senior-backend-platform-engineer.json","meta":{"generated_at":"2026-11-08T13:41:32Z","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":29006,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-09T00:00:00Z"}},"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":456176},"rest":"https://alion.io/mcp/rest/get_company?id=456176"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fcausa-prima-senior-backend-platform-engineer"},{"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%2Fcausa-prima-senior-backend-platform-engineer"},{"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%2Fcausa-prima-senior-backend-platform-engineer"},{"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/causa-prima-senior-backend-platform-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fcausa-prima-senior-backend-platform-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":581587}},{"tool":"search_jobs","arguments":{"company":"causaprima.ai","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":581587},"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. 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