Outsourced Client Controller (Work From Home)

System Six; United States; Remote; USD 140,000 - 180,000; Full time

Job summary

System Six, a fully remote cloud-accounting firm, seeks a seasoned Financial Controller to oversee complex client financials, especially sponsor-backed and M&A deals. You will guide close, reporting, and internal controls across a diverse portfolio, ensuring accuracy and scalability.

You will lead onboarding for acquisitions, build trusted client relationships, and drive process improvements, leveraging NetSuite, Sage Intacct, and other cloud tools while maintaining GAAP discipline.

Qualifications

• PE-backed and M&A client experience required.
• Onboarding and direction for newly acquired clients and close/process improvements.
• 8+ years in accounting/finance with multi-client leadership across industries.
• GAAP, lease accounting, revenue recognition expertise with insights for client decisions.
• Strong operational accounting oversight including bookkeeping, AP/AR, GL, reconciliations.

Responsibilities

• Serve as outsourced controller for multiple PE-backed/recently acquired clients; onboard and set close calendars and reporting standards.
• Act as primary client contact; communicate with owners, sponsors, and external partners with clarity.
• Oversee accounting operations; manage GL, AP/AR, month-end close and variance analysis.
• Lead Account Managers; delegate tasks and coach teams on advanced accounting.
• Own process improvement and software integration; design workflows for scalable systems.

Skills

Leadership

Communication

People development

Growth mindset

Budgeting

Strategic finance

Cash flow forecasting

Internal controls

Month-end close

Education

Bachelor's degree in accounting or finance

CPA experience preferred

Tools

NetSuite

Sage Intacct

QuickBooks Online

Advanced Excel

Bill

Ramp

Gusto

ADP

Karbon

Job description

At System Six, we're trying to build one of the best places to work in cloud-accounting - a place where our team members are the most important part of our business. A place where the team experiences joy, flexibility and growth every day. We are a fast evolving , modern, 100% remote organization delivering full-cycle accounting services to hundreds of customers nationwide.

We are actively seeking our next Financial Controller, a joyful, ambitious, highly skilled finance leader who will oversee complex financial operations for multiple clients, with a focus on sponsor-backed businesses, especially those growing through acquisitions. You will guide strategic implementations and decision-making, give these clients clear direction from day one, and elevate the quality and consistency of our service delivery.

This position is available for US-based individuals seeking full-time work, allowing you to balance other important parts of your life with an exciting, fulfilling career. Our talented team loves System Six and we can’t wait to show you how that energy permeates throughout our organization.

So what are we looking for in an ideal candidate?

• PE-backed and M&A client experience. This is a must-have for this role. You’ve supported PE portfolio companies, recently acquired businesses, and clients in the middle of a deal, and you know how differently each of those situations feels for the people living through it. You have hands-on experience with M&A accounting and rollups, and you can step in wherever a client is in that process.
• Onboarding and direction. You can step into a newly acquired or newly onboarded client, work out quickly what is right and wrong in both their books and their overall finance processes. You can quickly establish trust and give the client, the client’s finance team, and our own team a clear plan for cleanup, close, and reporting. You’re comfortable with purchase accounting, opening balance sheets, multi-entity consolidations, and diligence or lender requests.
• Extensive multi-client cloud finance leadership. You’ve remotely managed a portfolio of clients with sophisticated financial needs across various industries. You bring 8+ years of accounting and finance experience, including leading month-end close processes, implementing internal controls, preparing audit-ready financials, and guiding clients through complex financial environments.
• High-level financial reporting & analysis expertise. You prepare and review accurate monthly, quarterly, and annual financial statements and deliver clear, actionable insights. You’re fluent in GAAP, lease accounting, and revenue recognition, and know how to communicate financial data in a way that empowers client decision-making. You’ve had vast experience with cashflow forecasting and budget vs actual analysis, etc.
• Strong operational accounting oversight. You have deep experience managing or coordinating bookkeeping, AP/AR, general ledger integrity, reconciliations, and revenue recognition. You know how to build, lead, and improve consistent, scalable accounting processes across clients and teams. You’ve also worked closely with auditors, tax teams, and compliance partners, maintaining thorough documentation and strong internal controls year-round.
• Tech fluency. Hands-on experience in NetSuite, Sage Intacct, QuickBooks Online, Advanced Excel, Bill, Ramp, Gusto, and ADP. Karbon is a plus.
• Bachelor’s degree in accounting or finance. CPA firm or public accounting experience strongly preferred.
• Leadership & Communication. You build strong relationships with business owners, finance teams, sponsors, and external partners. You communicate clearly across digital channels and bring warmth to team and client interactions.
• Technical Excellence & Problem-Solving. You maintain rigorous standards for accuracy, deliver consistent results, and lead with resourcefulness. You manage complex client situations with patience while ensuring accounting integrity, knowing when to dig in and when to seek collaboration.
• People Development. You delegate effectively, mentor finance staff, and coach others toward excellence. You create environments where people grow.
• Growth Mindset. You approach your work with humility, actively seek coaching, and give constructive feedback. Continuous improvement drives how you work.

What does the day to day look like for this role?

• Serve as the outsourced controller for multiple PE-backed and recently acquired clients. You onboard new and newly acquired businesses by assessing their books, setting close calendars and reporting standards, and giving clear direction. You support clients through M&A activity, including diligence, purchase accounting, consolidation, and integration.
• Act as the primary client contact, building relationships with business owners, finance teams, sponsors, and external audit/tax partners. You communicate clearly, manage expectations, and advise with confidence.
• Oversee accounting operations and ensure accuracy across the GL, AP/AR, and reconciliations. You prepare and review financial statements, lead the monthly close, and perform variance analysis.
• Lead Account Managers by delegating complex tasks, reviewing work, and coaching with clarity and empathy. You train others in advanced accounting practices that apply across client portfolios.
• Own process improvement and software integration. You evaluate, recommend, and implement new systems, often stepping into client-specific software and systems inherited through acquisitions. You design workflows to integrate technology seamlessly and continuously look for ways to enhance quality, efficiency, and scalability.

Importantly, here’s what’s in it for you:

• A joyful workplace where employees and culture are paramount. We understand that we are all human and we want your success in your professional life to elevate and empower your personal life.
• A 100% remote environment. We’ve been remote for 10+ years and are set up for you to succeed remotely while working with flexibility during daytime professional hours.
• Strong compensation. This exempt position offers a base salary range of $140,000 - $180,000 and includes a quarterly bonus structure based upon a percentage of client profit generated by your book of business.
• Competitive benefits. We provide all of your work equipment, insurance, 401k matching, PTO, family leave, annual in-person gatherings and many other leading benefits.
• Growth opportunities. We are a fast growing company on a multi-decade journey of evolution. We relish promoting from within, and will support you in your efforts to grow with System Six. Our best employees thrive in growing environments and always seek to get 1% better every day.

At System Six, we truly believe in the importance of maintaining a healthy work-life balance and we understand the importance of family and personal commitments. While we encourage our employees to prioritize their well-being outside of work, we do not allow team members to take on additional paid accounting tasks beyond their role with us. This is a 100% remote, work from home role. You must have strong, reliable home internet connection and an environment conducive to video and phone calls. Our accounting positions operate on a W2 basis and we track our time by client and type of work. Availability is required five days a week within standard professional hours. Like most accounting roles, it's common for weekly hours to fluctuate slightly (+/- 3-5 hours) due to varying client demands from week to week.

System Six is an equal opportunity employer that is committed to diversity and inclusion in the workplace. We encourage all backgrounds to apply, and prohibit discrimination of any kind based on any and all protected classes.