Senior GTM Finance Manager

Senior GTM Finance Manager - hybrid role based in Lexington, MA Mimecast is seeking a Senior GTM Finance Manager to serve as a strategic finance partner to the Go-To-Market organization. Reporting to the Director, GTM Finance, this role works closely with Sales, Customer Success, and Revenue Operations and contributes to strategic decisions around revenue growth and GTM investment. What You'll Do: Strategic GTM Partnership

• Act as the primary finance partner to GTM leaders across Sales, Customer Success, and related functions.
• Partner closely with GTM leaders to align business strategies with financial objectives, advocate for sound resource allocation and financial discipline.
• Provide insights into revenue performance and customer economics.
• Identify growth opportunities and operational risks across the GTM organization.

Planning & Revenue Strategy

• Drive key components of annual planning, forecasting, and long-range planning for the revenue organization.
• Own headcount planning and capacity modeling for assigned GTM functions; collaborate with the Director, GTM Finance on sales capacity planning and productivity analysis.
• Evaluate the financial impact of new GTM initiatives, product launches, and expansion strategies.
• Support month-end close activities in coordination with Accounting and Corporate FP&A, including variance analysis, accrual validation, and budget vs. actual reporting.

Revenue Performance & Operations

• Partner with RevOps to analyze pipeline health, attainment trends, and sales productivity.
• Support sales compensation modeling and territory planning.
• Deliver financial insights to regional leaders to support GTM execution.

Executive Reporting & Insights

• Develop reporting and dashboards to monitor key metrics and provide visibility into GTM performance.
• Prepare financial narratives for monthly leadership reviews, QBRs, and executive presentations.
• Translate complex data into clear, actionable insights for senior leadership.

What You'll Bring:

• Progressive experience in FP&A, corporate finance, GTM finance, or a related field.
• Experience as a finance business partner to GTM, Sales, Customer Success, or comparable commercial functions.
• Strong understanding of SaaS business models and metrics, including ARR, ACV, CAC payback, NRR/GRR, pipeline velocity, and sales productivity ratios.
• Advanced financial modeling and analytical skills
• Expertise in Excel and experience with tools such as Adaptive Insights, NetSuite, Salesforce, Tableau, SQL, Anaplan, or Pigment.
• Familiarity with sales capacity planning, commissions modeling, and revenue forecasting methodologies.
• Ability to communicate complex financial insights to senior stakeholders.
• Highly organized and detail-oriented, with the ability to manage multiple priorities and meet deadlines in a fast-paced environment.
• Exceptional interpersonal, written, and verbal communication skills; comfortable working across global, cross-functional teams.
• Experience in high-growth SaaS or technology environments preferred.

The base salary range for this position is $128,000−$192,000 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-ND1 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’re proud to be an Equal Opportunity and Affirmative Action Employer, and we’d encourage you to join us whatever your background. We particularly welcome applicants from traditionally underrepresented groups. 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. If you require any adjustments or accommodations due to a disability, or any other reason that may help you in your interview process, please let us know by emailing [email protected]. 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. Apply tot his job Apply To this Job