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BuildBuild

Senior Software Engineer (Core Infrastructure)

Owns the foundational infrastructure that orchestrates autonomous agents and long-running workflows in production. The role combines systems architecture, reliability engineering, end-to-end infrastructure ownership, and direct responsibility for security and compliance.

About the job

Responsibilities

  • Build and operate core infrastructure primitives for agent orchestration, workflow engines, state management, eventing, and execution reliability.
  • Design systems that handle partial data, human handoffs, long timelines, regulatory constraints, and silent-error prevention.
  • Make architectural decisions affecting product capability, engineering velocity, and customer trust.
  • Own infrastructure end-to-end, including design, implementation, testing, deployment, observability, and ongoing evolution.
  • Collaborate with product, applied AI, and domain experts to translate workflows into durable, production-grade systems.
  • Set technical standards for robustness and clarity.

Security and Compliance

  • Own security oversight across the infrastructure layer, including risk assessments, tooling, and incident-response readiness.
  • Ensure systems meet and maintain SOC 2 and, where applicable, PCI DSS requirements.
  • Collect, document, and maintain audit-ready compliance evidence.
  • Maintain documentation of security-related responsibilities across the engineering team.
  • Act as the primary infrastructure-security contact during audits, customer due diligence, and compliance reviews.
  • Collaborate on PII handling, data residency, privacy, and regulatory requirements in system design.

Compensation and Benefits

  • Meaningful, generous equity.
  • Radical autonomy, end-to-end ownership, and minimal bureaucracy.
  • Accelerated founder’s-track growth opportunities.
  • Work alongside highly experienced, ownership-oriented teammates.
  • Opportunities to shape software used in major built-world projects.

Skills

Agent Orchestration, Workflow Engines, State Management, Event-Driven Systems, Distributed Systems, Infrastructure Security, Incident Response, SOC 2, Pci Dss, Observability, Deployment, Pii Handling, Data Residency, Regulatory Compliance

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