Assistant Controller

Cognism; Greater London; On-site; GBP 50,000 - 70,000; Full time

Job summary

A leading B2B data provider in London is looking for an Assistant Controller to support financial control functions and ensure accurate reporting. This role involves managing month-end closes, audit processes, and improving financial systems. Candidates should be qualified accountants with strong technical accounting knowledge and experience in fast-paced environments. A proactive mindset and attention to detail are essential, alongside collaboration with FP&A and auditors for thorough financial management.

Qualifications

• Experience in a fast-paced or high-growth environment, ideally SaaS/tech.
• Proven background in financial control and reporting.

Responsibilities

• Support month-end and year-end close processes for accurate reporting.
• Prepare and review journal entries, accruals, and reconciliations.
• Assist in producing monthly management accounts and variance analysis.
• Maintain internal financial controls and processes.
• Support statutory accounts preparation in line with IFRS/UK GAAP.
• Partner with auditors during external audits.
• Drive process improvements and automation.
• Collaborate with FP&A to ensure financial data alignment.
• Monitor financial performance, highlighting risks and opportunities.
• Support ad hoc finance projects.

Skills

Strong technical accounting knowledge (IFRS or UK GAAP)

Excellent attention to detail

Strong analytical skills

Proactive mindset

Collaborative working ability

Education

Qualified accountant (ACA / ACCA / CIMA)

Big 4 trained

Job description

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.

Job Summary

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

We are committed to fostering an inclusive, diverse, and supportive workplace.