Assistant Controller

WHO ARE WE

Cognism is the leading provider of European B2B data and sales intelligence. Ambitious businesses of every size use our platform to discover, connect, and engage with qualified decision-makers faster and close more deals. Headquartered in London with global offices, Cognism’s contact data and contextual signals are trusted by thousands of revenue teams to eliminate the guesswork from prospecting.

The Assistant Controller supports the financial control function, ensuring accurate reporting, strong internal controls, and compliance across the business. This role works closely with the Financial Controller and senior finance leadership to manage month-end close, audit processes, and continuous improvement of financial systems and processes.

What You’ll Do

• Support the month-end and year-end close processes to ensure timely and accurate reporting
• Prepare and review journal entries, accruals, and balance sheet reconciliations
• Assist in producing monthly management accounts and variance analysis
• Maintain and strengthen internal financial controls and processes
• Support the preparation of statutory accounts in line with IFRS/UK GAAP
• Partner with auditors during external audits, providing documentation and resolving queries
• Help drive process improvements and automation within the finance function
• Collaborate with FP&A and other teams to ensure alignment on financial data
• Monitor and analyse financial performance, highlighting risks and opportunities
• Support ad hoc projects, including system implementations and scaling finance operations

What You’ll Bring

• Qualified accountant (e.g. ACA / ACCA / CIMA) or equivalent experience
• Big 4 trained
• Strong technical accounting knowledge (IFRS or UK GAAP)
• Experience in a fast-paced or high-growth environment (ideally SaaS/tech)
• Excellent attention to detail with strong analytical skills
• Proactive mindset with the ability to improve processes and work collaboratively

WHY COGNISM

At Cognism, we’re not just building a company - we’re building an inclusive community of brilliant, diverse people who support, challenge, and inspire each other every day . If you’re looking for a place where your work truly makes an impact , you’re in the right spot!

Our values aren’t just words on a page—they guide how we work, how we treat each other, and how we grow together. They shape our culture, drive our success, and ensure that everyone feels valued, heard, and empowered to do their best work.

Here’s what we stand for:

We Own the Outcome Together.

We Deeply Understand our Customers.

We Celebrate Impact Wherever It Comes From.

At Cognism, we are committed to fostering an inclusive, diverse, and supportive workplace. We welcome applications from individuals typically underrepresented in tech, so if this role excites you but you’re unsure if you meet every requirement, we encourage you to apply!