[Remote] Staff Software Engineer

Note: The job is a remote job and is open to candidates in USA. PeopleLoop is an AI-powered experience that modernizes benefits and PEO solutions for people-driven companies. In this role, you will lead the design and delivery of core services that every PeopleLoop product depends on, including events, audit, EDI, compliance graph, and enrollment orchestrator. You will also mentor engineers and drive design reviews as a Staff-level engineer.ResponsibilitiesDefine clear system boundaries and ownership across Postgres (system of record), the compliance graph, Python (FastAPI) and Node/TypeScript (NestJS) services, event pipelines, AI agents, and external partners (carriers, EDI, payroll)Build and maintain an append‑only, tamper‑evident audit log across services. Provide query APIs for compliance and support use cases, with retention and legal‑hold support. Ensure every AI agent action is audited end‑to‑endOwn 834 eligibility and 820 premium flows, including partner variants. Build carrier adapters with strong contract tests, reconciliation, and replay so new integrations are primarily configuration, not bespoke engineering workModel jurisdictions, regulations, plans, and eligibility rules in Neptune (or Neo4j). Own graph modeling, bulk loading, query design, and safe retrieval APIs that services and AI agents use to answer 'what applies here?'Design and evolve long‑running workflows (Step Functions or Temporal) for open enrollment, QLEs, terminations, and carrier submission. Support agent‑assisted steps, simulation vs. live runs, human approvals, and reliable replay and recoveryHelp build the foundational agent platform: tool contracts over internal APIs and the compliance graph, retrieval and grounding, LangGraph or similar orchestration, prompt and model registries, evaluation harnesses, cost and latency controls, and PII‑safe loggingDesign and maintain strong tenant isolation (RLS, per‑tenant keys), API gateway and authorization (Cedar), secrets and KMS, rate limits, and quotas—including per‑tenant agent budgetsDeliver meaningful observability with OpenTelemetry traces, metrics, and logs across services and agent runs. Define SLOs that drive action. Own CDC from Postgres into the lake for analytics and agent evaluation datasetsImprove developer velocity through shared Python and TypeScript libraries, OpenAPI/GraphQL code generation, and tests that cover workflows, integrations, graph queries, and agent behaviorSkills7+ years of software engineering experience, with 2+ years at Senior or Staff level owning cross‑team initiativesStrong production experience building Python services; working proficiency in Node/TypeScriptDeep experience with MongoSQL, PostgreSQL and at least one of Kafka/MSK, Kinesis, or EventBridgeHands‑on AWS experience, including Step Functions or a comparable workflow engineShipped at least one LLM‑ or agent‑backed feature to production, including retrieval, tool use, and guardrails (LangGraph, LangChain, LlamaIndex, or similar)Experience designing and operating multi‑tenant systems with strong security and privacy guaranteesComfortable writing RFCs, mentoring engineers, and driving designs from concept through productionBachelor's degree required, preferably in Computer Science, Engineering, or a related technical discipline; equivalent experience will be consideredBenefits, PEO, or EOR domain experience (834, 820, QLE, COBRA, multi‑country payroll or employment)Production use of graph databases (Neptune, Neo4j) with Cypher or GremlinWorkflow engines such as Temporal, Step Functions, or AirflowAuthorization engines and policy‑as‑code (Cedar, OPA)CDC pipelines (Debezium, DMS) and lakehouse architecturesDSLs or rules engines for carrier mappings or compliance checksAgent evaluation tooling (LangSmith, Ragas, Braintrust) and prompt or model registriesVector stores and hybrid retrieval (pgvector, OpenSearch, Pinecone)MCP servers, function‑calling contracts, or structured‑output patternsBenefitsOffers EquityPerformance-based bonus programsComprehensive benefits packageCompany OverviewPeopleLoop makes workforce management effortless through AI-powered benefit and PEO solutions that scale with you. It was founded in undefined, and is headquartered in San Mateo, California, US, with a workforce of 51-200 employees. Its website is https://www.peopleloop.com/.