Assistant Financial Controller
Lead the accounting team in managing the monthly, quarterly, and annual close processes while ensuring compliance with U.S. GAAP and enhancing operational finance practices.
About Treeline
Treeline is building the Modern IT Operating System — a software- and AI-native foundation that redefines how IT, security, and compliance are delivered. Rather than layering AI on top of decades-old workflows, we rebuilt the MSP operating model from the ground up, with software as the foundation. Our AI-enhanced 24/7 help desk delivers 80% faster response times and a 95% reduction in error rates vs. traditional industry standard.
We operate in a $200B+ MSP market where 40,000+ providers still run on manual coordination and reactive ticketing. Treeline replaces that with a centralized software architecture — automating routine operations while elevating human experts to focus on architecture, risk, and strategy. We serve growth-stage companies, with deep strength in regulated verticals (SOC 2, HIPAA, CMMC).
Through a combination of organic and inorganic expansion strategy, Treeline is growing fast. We’re backed by a16z ($25M Series A) and we’ve built a team with deep experience at the intersection of software and services, with a team of IT / security services industry-veterans (e.g. Evergreen, Lyra) and top university graduates (Stanford, Harvard, Berkeley).
Job Summary:
As our Controller, you'll be the operational backbone of Treeline's finance function — running the day-to-day engine (accounts payable, corporate spend, reconciliations, and month-end close) while building the systems that let it scale. This is a mission-critical, foundational hire: you'll bring existing finops experience and pair it with a modern, AI-native tool stack to turn manual work into repeatable processes. You'll get a front-row seat to a fast-moving, multi-entity rollup and a clear path to grow with the function as the company scales. If you’re detail-obsessed, dependable and hungry to build the systems behind a scaling finance org, this role has room to grow with the company as much as you can.
Responsibilities include:
What you bring:
Benefits
Lead the accounting team in managing the monthly, quarterly, and annual close processes while ensuring compliance with U.S. GAAP and enhancing operational finance practices.
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