Assistant Controller - Manufacturing (Burlington, MA)

Emerging from MIT, Poly6 is an exciting, innovative manufacturing company that specializes in the development and production of advanced additive manufacturing and ceramic components for aerospace turbomachinery.

We deliver high-performance products that meet the rigorous demands of quality, durability, and precision required for next-generation turbine engines while helping reduce greenhouse gas emissions.

Job Summary:
The Assistant Controller supports and helps oversee the accounting and financial operations of a dual‑site business unit.

This role ensures accurate, timely, and GAAP‑compliant financial reporting while driving operational excellence, internal controls, and improved financial visibility.

The Assistant Controller partners closely with the GM/Finance and business unit leadership to support KPI reporting, Business Unit Reviews, annual planning, and continuous improvement initiatives.
This position will also play a key role in the transition to Oracle Fusion, including system optimization, data integrity, and process redesign.

The Assistant Controller is being developed intentionally as a succession path for the Controller role and will progressively take on expanded responsibilities as competencies and business needs evolve.

Job Responsibilities:


* Lead and execute monthly, quarterly, and annual close activities to ensure timely, accurate, GAAP ‑ compliant financial results.


* Prepare and review journal entries, account reconciliations, accruals, variance analyses, and monthly reporting packages.


* Support KPI development, monthly dashboard reporting, and preparation of Business Unit Review materials, ensuring data accuracy and insightfulness.


* Partner with site leaders to validate KPIs, interpret results, and provide actionable financial insights.


* Maintain and strengthen internal controls across both sites; support audits and ensure compliance with financial policies and costing standards.


* Serve as a key finance lead in the rollout and optimization of Oracle Fusion, including process mapping, data validation, troubleshooting, and user support.


* Identify and implement automation and process improvements to enhance accuracy, efficiency, and reporting quality.


* Support annual planning, budgeting, forecasting, and capital expenditure analysis.


* Partner with Operations & Supply Chain to monitor inventory, WIP, material usage, scrap, and labor variances; ensure accuracy of standard costs and burden rates.


* Maintain ERP data integrity including work order accuracy, routings, BOM structures, material transactions, and labor reporting.


* Review planned vs.

actual production execution and collaborate with Production and Planning to address delivery, efficiency, and cost gaps.


* Support cycle count execution, inventory reconciliations, and support quarterly/year ‑ end physical inventory requirements.


* Analyze COGS, production accounting KPIs, yield performa...