Outsourced Controller

Ascend Partner Firms • Boston, Massachusetts • Full Time • $130,000–$150,000 / year

Posted on Fri, Oct 2, 2026

Walter Shuffain is looking to bring on a fully remote Outsourced Controller for our growing CAAS team. The Controllers at Walter Shuffain are the heart of our CAAS team. They are responsible for leading and managing the critical aspects of the engagements with our clients. This position provides the opportunity to work directly with clients, obtain exposure to a variety of industries, and the opportunity to work within a collaborative, growing and fast-paced environment with significant potential for you to grow.

This CAS Controller role is ideal for an ambitious, detail-oriented accounting professional with passion for client service and an entrepreneurial spirit. In addition to the opportunity to gain valuable experience working amongst clients varying in size and industry, this role will also provide the opportunity to work across multiple lines of service and provide high impact both to clients and our firm.

About Walter Shuffain: 

Established in 1994, WS Advisors is a Boston-based advisory and accounting firm dedicated to delivering thoughtful tax, financial, and business guidance that helps clients make confident, forward-looking decisions. We pride ourselves on a collaborative culture rooted in accountability, respect, responsiveness, and continuous learning, where diverse perspectives are welcomed and individual growth is encouraged.

Recognized for excellence, innovation, and a supportive work environment, WS Advisors has been named an IPA Top 200 Firm, an IPA Fastest Growing Firm, an IPA Best of the Best Firm, and one of Accounting Today’s Best Firms to Work For. We invest in our people and foster meaningful careers built on teamwork, integrity, and shared success.

About Ascend:

Backed by private equity from people-focused Alpine Investors, Ascend is building a dynamic platform for regional accounting firms that enables them to stay independent while accessing the resources of a Top 25 firm to help them grow. Ascend provides access to growth capital, robust talent acquisition and training, leading quality management resources, best-of-breed technology, AI tools, an offshore captive, shared back-office services, a catalytic leadership system, and modernized equity incentives so that firms can surmount today’s industry challenges to reach their full potential. For more information, visit www.ascendtogether.com.

Essential Functions

Education, Skills and Experience

Compensation

The annual base salary range for this role is $130,000–$150,000. This range includes the anticipated low and high end of Walter Shuffain’s salary range for this position. Actual compensation may vary based on various factors, including experience, education and/or skill level.

More live controller roles

Browse all live jobs · Accounting & finance salary data

What the data says about this job

  • Advertised pay for Controller in Greater Boston: a median of $149,500 across 127 priced postings. This posting advertises $130,000 to $150,000, 6% below that median. Explore the market
  • Ascend is private-equity backed: Alpine Investors (roll-up platform). Who owns the CPA firms
  • Ascend Partner Firms's roles typically close in 59 days; the market median is 14 days. Time to close
  • 30% of Ascend Partner Firms's 71 tracked postings are more than six months old. Posting hygiene

Measured from employers' own postings and public filings. How we measure

View the interactive listing →