Finance Engineer (Rotational Program)

Lumafield•Boston, MA

About The Position

Lumafield is hiring a Finance Engineer for a three-year rotational program across Finance and Accounting. The program includes three one-year rotations: FP&A, reporting to the Head of Finance; Finance Operations; and Record-to-Report, with the latter two reporting to the Head of Accounting. At the midpoint and end of each year, rotation managers provide structured feedback. At the end of each rotation, the Finance Engineer presents to Finance leadership on work owned, systems or processes built, and what the next Finance Engineer will inherit. After completing all three rotations, the employee graduates into a senior role in Finance, Accounting, or another Lumafield team needing an AI builder with finance judgment. The role combines finance analysis and operations with systems integration and automation. The Finance Engineer owns the analysis, modeling, and deliverables for their area, and is accountable for their accuracy and timing. They build skills and applications on the company’s data lake and source systems, connect systems and remove workflow bottlenecks, and build AI agents and workflows with documented review points so results are audit-ready. Recurring work is turned into documented, reusable workflows. The technology stack includes NetSuite, Maxio, Ramp, Numeric, HubSpot, Abacum, Databricks, and Claude. In the FP&A rotation, the Finance Engineer owns the operating model and forecast in Abacum, including headcount, revenue, cash, runway, and monthly variance analysis. They build board and executive reporting packages and support capital markets and M&A work, including data rooms, diligence requests, scenario modeling, and lender compliance reporting. They also build forecasting and reporting agents. In the Finance Operations rotation, the Finance Engineer owns collections and accounts receivable performance, accounts payable and purchasing in Ramp, monthly revenue recognition under ASC 606, and sales tax compliance in Maxio and Avalara. They automate collections, billing, coding, and reconciliation workflows and measure their cash impact. They also own the 13-week inflows and outflows cash forecast. In the Record-to-Report rotation, the Finance Engineer runs the month-end close for assigned areas, including balance sheet reconciliations, flux analysis, and audit-ready workpapers. They own inventory, COGS, fixed assets, and manufacturing cost accounting for scanner production; serve as a primary contact for external auditors on their areas; maintain related process and control documentation; and build close agents that draft entries, reconciliations, and flux explanations for human review.

Requirements

Bachelor’s degree in Accounting, Finance, Economics, Engineering, or a quantitative field.
2 to 6 years of work experience in finance, accounting, FP&A, finance systems, analytics, or a technical role connected to one of these areas.
Comfort rotating into a new area each year and adapting as the team, systems, and priorities change.
Demonstrated judgment, including making sound decisions with incomplete information and knowing when to escalate.
Builder mindset, including connecting systems, writing skills and workflow automation, and prototyping independently.
Proficiency with AI tools such as Claude and experience shipping working workflows or agents with them.
Clear communication and writing skills, including documentation and workpapers that another person can pick up.
Strong attention to detail, including producing reconciliations and workpapers that stand up to audit and catching errors before they leave the team.
Continuous improvement mindset, with an approach of shortening, documenting, or automating recurring tasks.
High degree of ownership, taking an area end to end and being accountable for its accuracy and timing.

Nice To Haves

MBA or CPA.
Familiarity with SQL.
Experience with NetSuite, Ramp, Maxio, Abacum, or Databricks.
Experience in a hardware, manufacturing, or mixed hardware/software business.

Responsibilities

Own analysis, modeling, and deliverables for the assigned area, ensuring accuracy and timely completion.
Build skills and applications using the data lake and source systems rather than relying on engineering or spreadsheet exports.
Connect systems and remove workflow bottlenecks, including integrations, general ledger mappings, data flows, and associated controls.
Build and orchestrate AI agents and workflows with documented review points to make outputs audit-ready.
Document recurring work as reusable workflows that future Finance Engineers can run and improve.
Present to Finance leadership at the end of each rotation on work owned, systems or processes built, and handoff information.
In the FP&A rotation, own the Abacum operating model and forecast for headcount, revenue, cash, and runway, and perform monthly variance analysis against plan.
Build board and executive reporting packages covering ARR, backlog, bookings, deployments, liquidity, and OpEx trends.
Support capital markets and M&A work, including data rooms, diligence requests, scenario modeling, and lender compliance reporting.
Build forecasting and reporting agents that keep FP&A packages current.
In the Finance Operations rotation, own collections and accounts receivable performance, including aging, DSO, cash application, and customer AP portal resolution.
Own accounts payable and purchasing in Ramp, including approval workflows, vendor management, and the NetSuite integration.
Own monthly revenue recognition under ASC 606 and sales tax compliance in Maxio and Avalara.
Automate collections, billing, coding, and reconciliation workflows with AI tooling and measure their cash impact.
Own the 13-week cash forecast for inflows and outflows.
In the Record-to-Report rotation, run the month-end close for assigned areas, including balance sheet reconciliations, flux analysis, and audit-ready workpapers.
Own inventory, COGS, fixed assets, and manufacturing cost accounting for scanner production.
Serve as a primary contact for external auditors on assigned areas and maintain related process and control documentation.
Build close agents that draft entries, reconciliations, and flux explanations for human review.