Financial Planning and Analysis Manager

Great River Group (GRG) is seeking an FP&A Manager to support the finance function across its geotechnical engineering platform; a group of multiple standalone entities operating under a shared holding company structure. This is a true 0-to-1 role. We are not hiring someone to inherit an established FP&A function or delegate the work to an existing team, read: there are no existing SOPs or processes to take over;

you are building them. This person will be responsible for building the FP&A capability across the platform, getting into the data, understanding how the businesses operate, building the reporting and forecasting infrastructure, and creating processes that can ultimately scale.

Beyond traditional FP&A work, this role plays a central part in our top initiative: building a consolidated, holding-company view of financial data across multiple operating companies. You'll also help modernize and streamline accounting processes, manage key banking and card-account relationships, and be a trusted partner to decision-makers who rely on your numbers to guide real business decisions.

Key Responsibilities

Multi-Entity Data Aggregation & Reporting

• Lead the aggregation of financial and operational data across multiple operating companies into a unified, holding-company-level view.
• Build and maintain consolidated reporting structures (P&L, balance sheet, cash flow, KPIs) that roll up cleanly from entity-level detail to platform-level insight.
• Partner with entity controllers and accounting teams to standardize chart of accounts, reporting cadence, and data definitions across the platform.
• Build the initial FP&A reporting infrastructure rather than simply administering an existing reporting process.

Data Integrity & Analysis

• Treat data integrity as non-negotiable — dig into root causes of variances rather than accepting numbers at face value.
• Proactively question data sources, reconciliations, and reporting logic to catch errors before they reach leadership.
• Develop and maintain financial models (forecasting, budgeting, scenario/sensitivity analysis) grounded in clean, validated data.

Accounting Efficiency & Modern Process Design

• Assist the Corporate Controller in identifying opportunities to streamline and modernize accounting workflows across entities— automation, system integration, and process standardization.
• Bring a point of view on how modern tools (ERP systems, automation, reporting platforms) can reduce manual work and improve close timelines.
• Support accounting leadership in evaluating and implementing efficiency initiatives across the platform's shared services.

Business Partnering & Executive Reporting

• Prepare and present key company metrics and KPIs to decision-makers on a weekly and monthly basis.
• Translate financial data into clear, actionable insight that helps leaders make meaningful operating decisions — not just report the past, but inform what's next.
• Build strong working relationships with entity leaders, Corporate Controller, and FP&A/accounting teams across the platform.
• This role is intentionally located in an operating company environment. We believe proximity to the business is important to understanding the numbers, building relationships, and becoming a trusted partner to operating leaders. This is not intended to be a traditional fully remote FP&A role.

What We're Looking For

• Bachelor's degree in Finance, Accounting, or a related field.
• 8–10+ years of progressive finance/accounting experience gained within a company (industry/operating company background)
• Solid working knowledge of accounting principles and close processes — enough to be a credible partner to accounting teams and to help design more efficient processes.
• Advanced Excel and financial modeling skills; experience with modern ERP/reporting systems (e.g., Acumatica, Net Suite, PowerBI, or similar)
• Experience working across multiple entities, business units, or a holding-company/platform structure is a strong plus.
• Naturally self-sufficient: comfortable owning ambiguous problems, driving them to resolution, and knowing when to ask for input versus when to run with it.
• A curious, questioning mindset — someone who instinctively traces a…