Financial Controller (maternity cover)

Mimecast

London, UKhybrid$100k-$150k/yrPosted Jul 3, 2026
Posting intelligenceActively listedReposted 10×, possible evergreen/ghost posting

About the role

Financial Controller (maternity cover, 12 month FTC)

About Mimecast

Mimecast is a leading cybersecurity company that protects organisations' data, people, and brand from email-borne threats. With a focus on innovation and collaboration, we support thousands of businesses worldwide with our cloud-first platform. Our Finance team plays a vital role in enabling that mission, ensuring rigorous financial controls and delivering meaningful insight across the business.

Role Overview

We are looking for an experienced finance professional to join Mimecast on a fixed-term basis as Financial Controller (Maternity Cover). This is a senior role with broad ownership across our EMEA entities, encompassing US GAAP management reporting, statutory audit, tax collaboration, and team leadership. The successful candidate will be a qualified accountant with a track record of operating at Controller level in a complex, multi-currency environment, and will be ready to hit the ground running from day one.

Key Responsibilities:

Management Reporting & Close Processes

Ownership of monthly management reporting under US GAAP

Own the month-end, quarter-end and year-end close processes across a number of EMEA entities, ensuring accurate and timely reporting

Oversight of reconciliations for all balance sheet items and meaningful variance analysis on a monthly, quarterly and annual basis

Review of complex calculations and items requiring judgement when prepared by more junior team members

Statutory Accounts & Audit

Supervise statutory audits and preparation of financial statements under IFRS for UK and other EMEA entities, including oversight of complex audit items

Payroll & Employment Tax

Preparation of payroll-related returns such as, PAYE Settlement Agreement (PSA), and employment-related securities returns

Oversight of payroll accruals and journals

Tax Collaboration

Collaborate with tax teams to ensure visibility of transfer pricing changes and timely reporting of corporation tax returns

Process Improvement & Business Partnering

Implementation of best practices within the Finance department

Developing and applying knowledge of Mimecast's business to provide value-added analysis and support to other areas of the business

Team Leadership

Providing guidance and mentoring to more junior members of the team

Other duties as requested by senior Finance leadership, including cover during periods of high workloads and absences

What You’ll Bring:

Essential

Professional accounting qualification - ACA, ACCA, or CIMA

5+ years' post-qualified experience within industry

Proven Finance Controller experience

Strong knowledge of US GAAP and IFRS

Experience with multi-currency reporting

Skills & Attributes

Credibility and confidence to liaise effectively with senior management

Methodical, diligent, accurate and accountable approach to work

Ability to challenge the status quo and drive improvement through change

Strong organisational skills with the ability to multi-task and deliver high-quality work to deadlines

Team player with a positive, collaborative attitude

Join our Finance team to accelerate your career journey. You will

be immersed in a dynamic environment that recognizes and celebrates your achievements.

Mimecast offers formal and on-the-job learning opportunities, maintains a comprehensive benefits package that helps our employees and their family members to sustain a healthy lifestyle, and importantly - working in cross functional teams to build your knowledge!

Our Hybrid Model: We provide you with the flexibility to live balanced, healthy lives through our hybrid working model that champions both collaborative teamwork and individual flexibility. Employees are expected to come to the office at least two days per week, because working together in person:

Fosters a culture of collaboration, communication, performance and learning

Drives innovation and creativity within and between teams

Introduces employees to priorities outside of their immediate realm

Ensures important interpersonal relationships and connections with one another and our community!

The base salary range for this position is £100,000 £150,000 pro rata plus benefits. This range represents the minimum and maximum new hire compensation for this role. The position may also be eligible for incentive plans and additional benefits, in accordance with company policy and local regulations. Our salary ranges are determined by role, level, and location with individual compensation also dependent on factors such as qualifications, experience, and skills. Final offers will reflect these considerations and may vary accordingly.

#LI-CS1

Belonging at Mimecast

Cybersecurity is a community effort. That’s why we’re committed to building an inclusive, diverse community that celebrates and welcomes everyone – unless they’re a cybercriminal, of course.

We consider everyone equally: your race, age, religion, sexual orientation, gender identity, ability, marital status, nationality, or any other protected characteristic won’t affect your application.

Due to certain obligations to our customers, an offer of employment will be subject to your successful completion of applicable background checks, conducted in accordance with local law.

It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment.

Compensation

This Finance role pays $100k-$150k/yr. Within typical range for finance roles in United Kingdom.

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