Controller

Job DescriptionDownstream Systems, Inc. is a leading marketplace platform that's transforming the waste and construction industries from the ground up. We're on a mission to bring simplicity, transparency, and sustainability to two of the most essential-but often overlooked-sectors of our economy.At Downstream, we make it easy for contractors, builders, and businesses to find and book critical services like dumpster rentals, hauling, and site clean-up-all in just a few clicks. No more endless calls, confusing pricing, or waiting around. Our platform connects customers with vetted, reliable providers so they can get what they need, when they need it-without the headache.But we're not just about convenience-we're about impact. By streamlining logistics and digitizing the supply chain, we're helping reduce waste, cut emissions, and build a cleaner, more sustainable future for everyone. Whether you're managing a small job site or a major development project, Downstream is here to help you keep things moving-efficiently, affordably, and responsibly.Let's build better, together.Role Specifics:Downstream is seeking a Controller to own day-to-day accounting operations and ensure accurate, timely, GAAP-compliant financials as we scale. This role is both strategic and hands-on, supporting leadership with clean reporting, strong controls, and insights that drive better decisions.You will be responsible for financial close, multi-state sales & use tax compliance, budgeting vs. actuals, and building scalable accounting processes for a high-growth marketplace.Key Responsibilities:Accounting & Financial OperationsOwn the monthly, quarterly, and annual close processEnsure GAAP-compliant financial statements (P&L, Balance Sheet, Cash Flow)Oversee revenue recognition for a marketplace business modelManage accruals, prepaid expenses, and expense classificationMaintain strong internal controls and accounting policiesBudgeting, Forecasting & ReportingLead Budget vs. Actual reporting and variance analysisPartner with leadership on forecasting and cash-flow planningPrepare management reporting for executives and board meetingsSupport investor and lender reporting as neededMulti-State Sales & Use TaxOwn multi-state sales tax and use tax complianceCoordinate nexus determinations, filings, and remittancesManage sales-tax exemptions and documentationWork with external advisors and tax software providers as neededAP / AR / Marketplace ComplexityOversee Accounts Payable and Accounts Receivable processesManage supplier payouts, accruals, and reconciliation timingEnsure accurate treatment of marketplace COGS vs. gross revenueMonitor aging schedules and support collections strategySystems, Process & ScaleOwn accounting systems (e.g., Xero)Improve close timelines, automation, and documentationPartner cross-functionally with Ops, Sales, and ProductSupport audits, tax filings, and future system upgradesRequirementsRequired5-10+ years of accounting experience, including Controller or Senior Accounting Manager rolesStrong knowledge of U.S. GAAPHands-on experience with multi-state sales tax / use taxExperience with Budget vs. Actuals and variance analysisStrong understanding of accrual accountingExperience in high-growth, multi-entity, or multi-state environmentsPreferredExperience in a marketplace, SaaS, fintech, or transactional platformCPA or CPA-eligibleExperience supporting fundraising, audits, or lender reportingFamiliarity with construction, logistics, or services-based businessesWhat Success Looks LikeTimely month-end closeClear visibility into margin, cash flow, and operating performanceSales tax compliance across all operating statesScalable accounting processes that grow with the businessRole-Specific PerksBe a key finance leader at a fast-growing marketplaceHigh ownership and influence on how the company scalesPartner closely with executive leadershipBuild systems and processes from the ground upCompetitive compensation and meaningful equity opportunityBenefitsBenefitsHealth, dental, and vision insurance, 401(k), company equity, paid time off, paid hoidays, maternity leave, bereavement leave, floating holidays, and more.