Director of Finance

The future of AI — whether in training or evaluation, classical ML or agentic workflows — starts with high-quality data. At HumanSignal, we’re building the platform that powers the creation, curation, and evaluation of that data. From fine-tuning foundation models to validating agent behaviors in production, our tools are used by leading AI teams to ensure models are grounded in real-world signal, not noise. Our open-source product, Label Studio , has become the de facto standard for labeling and evaluating data across modalities — from text and images to time series and agents-in-environments. With over 250,000 users and hundreds of millions of labeled samples, it’s the most widely adopted OSS solution for teams working on building AI systems. Label Studio Enterprise builds on that traction with the security, collaboration, and scalability features needed to support mission-critical AI pipelines — powering everything from model training datasets to eval test sets to continuous feedback loops.We started before foundation models were mainstream, and we’re doubling down now that AI is eating the world. If you're excited to help leading AI teams build smarter, more accurate systems — we’d love to talk. About the Role We’re hiring a Director of Finance to own the financial backbone of HumanSignal, the company behind Label Studio. Reporting directly to the CEO, you’ll own financial planning, business analytics, and the metrics infrastructure that drives decision-making across the company, including our SaaS labeling services business. This is a hands-on leadership role with broad scope. You’ll partner with the executive team on strategy and planning, work cross-functionally with product, marketing, and sales, and build the financial infrastructure we need for the next stage of growth. If you’re energized by ownership, building from scratch, and operating at the intersection of strategy and execution, this is your role. What You’ll Own Financial Planning Analysis Own the full PL and free cash flow forecast; build and maintain our long-range financial model Lead the annual and quarterly planning cycle, including budgets, variance analysis, and ad-hoc modeling Deliver weekly KPI reporting to the executive team and board/investor reporting packages Revenue Deal Operations Run deal desk operations in partnership with Sales and Customer Success to ensure coherent deal structure and pricing Build and manage sales commission and incentive plans Develop, align, and drive accountability around company-wide KPIs Labeling Services Metrics Economics Own the financial model for our labeling services business, including project-level profitability, utilization, and margin analysis Partner with services leadership to develop pricing models, capacity planning, and resource forecasting Track and report on services revenue, backlog, and pipeline as a distinct business line alongside software ARR Board Strategic Support Own end-to-end board meeting preparation, including deck creation, data packages, and follow-ups Partner with leadership on strategic initiatives, business cases, and scenario planning Serve as primary liaison to external accounting, tax, and payroll services What You’ll Bring 5+ years in an FPA, finance, or business analytics role at a high-growth startup, or relevant experience in management consulting Experience building financial infrastructure largely from scratch, you’re comfortable being the first dedicated finance hire Strong command of SaaS metrics: ARR, NDR, CAC payback, gross margin Experience with services or professional services financial modeling (utilization, project margins, blended rates) is a strong plus Highly analytical with advanced modeling skills Experience preparing board materials, investor updates, and executive-level reporting Ability to build a case and tell a persuasive story that drives decision-making across the organization Self-starter who can own complex projects en ... (truncated, view full listing at source)