{"id":4077152,"url":"https://alion.io/job/meanwhile-senior-software-engineer-platform-api","title":"Senior Software Engineer - Platform, API","company":{"id":2233408,"name":"Meanwhile","domain":"meanwhile.bm","url":"https://alion.io/company/meanwhile-bm","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Francisco, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Model Context Protocol","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"SLI/SLO/SLA","optional":false}],"status":"live","first_seen_at":"2026-11-10T15:10:32Z","employer_posted_date":null,"last_verified_at":"2026-11-10T15:10:32Z","board_verified":false,"closed_at":null,"days_open":1,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":1},"description":"Meanwhile is looking for a Senior Software Engineer to take the public API and MCP server from prototype to a secure external product with authentication documentation and developer experience\n\nYou will own the public API and MCP server end to end, from resource modeling and versioning through security, performance, documentation, and developer experience. You will build the auth model, safety controls, sandbox, and guides that partners and their agents build against, writing Python against PostgreSQL.\n\nResponsibilitiesDesign and build the public API including resource modeling, versioning, idempotency, pagination, error taxonomy, and webhooks\nBuild the MCP server exposing platform capabilities to agents safely\nOwn authentication and authorization using OAuth 2.0 / OIDC, scoped credentials, and tenant isolation\nBuild rate limiting, quotas, abuse detection, input validation, request signing, and audit logging\nDesign for scale with latency budgets, caching, backpressure, SLOs, and observability\nWrite documentation and integration guides\nBuild sandbox, example integrations, changelog, and partner support path\nPartner with engineering teams to shape internal services into a coherent external contract\nWrite production Python code against PostgreSQL\nParticipate in a business-hours on-call rotation\n\nRequirements10+ years of 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