Infrastructure Engineer

Sapien is rethinking how finance teams operate in the age of AI. We’re building toward an autonomous CFO—systems that run company financials end-to-end. Our platform analyzes complex financial data in real time to increase decision cadence, prevent costly mistakes, and surface value. Sapien has caught multi-million-dollar errors, saved thousands of jobs, and returned significant dollars to customers’ bottom lines.

We partner with traditional businesses—manufacturing, healthcare, restaurants, and large enterprises—to deeply understand and automate their financial workflows. We’re HQ’d by Madison Square Park in NYC and backed by General Catalyst, Neo, and top operators from Google, OpenAI, Microsoft, Ramp, and Stripe (over $9M raised).

You'll build the core infrastructure that powers Sapien as an agent. This means designing and implementing scalable systems that process massive enterprise financial data (terabytes!), serve and schedule millions of concurrent requests, and enable our agents to deeply understand how companies operate.

This is a foundational technical role. You'll architect systems from the ground up, make critical technical decisions, and directly shape how Sapien scales to serve enterprises.

• Build highly concurrent systems that process thousands of user requests simultaneously while scheduling and optimizing response times across multiple model endpoints.

• Design and implement core database architecture to handle complex enterprise data models and our novel company representations at scale.

• Create efficient integration layers that transform diverse financial data sources (ERPs, CRMs, Excel) into unified, queryable schemas.

• Develop robust caching strategies, data access patterns, and middleware solutions to ensure fast, reliable data delivery between frontend and agent infrastructure.

• Build monitoring, observability, and debugging systems to maintain performance and reliability as we scale to larger enterprises.

• Drive technical decisions end-to-end—from architecture and implementation to deployment and production operations—owning hard problems across their entire loop.

• Quality experience building production infrastructure for high-throughput, performance-critical workloads.

• Deep experience with data + database systems: internals, optimization, scalable schema design, and modeling complex domains.

• Strong systems instincts—distributed systems, concurrency, fault tolerance, and performance tuning.

• Experience running cloud infra in production with modern tooling

• CS degree or equivalent experience. We care most about what you've built.

• Adaptability: You thrive in unfamiliar territory and can shift contexts quickly—whether debugging a database issue, designing a new system, or jumping into a customer problem.

• Ownership: You identify what needs to happen and drive it to completion. You take initiative and deliver outcomes, not just tasks.

• Opinionated: You have strong technical perspectives and push back when you disagree. You make the team's decisions better by engaging deeply.

• Mission-driven. You're energized by transforming how businesses run and understand that every technical decision connects to real customer impact.

• Collaborative excellence: You elevate the team through thoughtful feedback, knowledge sharing, and genuine investment in others' growth.