Internal Controls & Process Improvement Lead (Controller)

We are seeking a highly analytical and process-driven accounting professional to support the development of internal controls, documentation, and operational efficiency within our finance organization.

This role will initially focus on reviewing and documenting accounting processes, strengthening internal controls, and preparing the organization for audit readiness and scalable growth. The ideal candidate will bring experience from public accounting or a highly structured accounting environment where internal controls, audit readiness, and process documentation are critical.

Over time, this position is expected to evolve into a Controller-level leadership role responsible for overseeing accounting operations and supporting financial scalability as the organization expands

Key Responsibilities

• Internal Controls & Compliance
• Evaluate current accounting processes and identify control gaps or operational inefficiencies
• Design and implement internal controls aligned with best practices and audit readiness standards
• Support documentation and implementation of controls within compliance management tools such as Vanta
• Prepare the organization for future SOC-type compliance frameworks and external audits
• Ensure financial processes support scalable operations as the company grows
• Process Documentation & Operational Efficiency
• Document end-to-end accounting workflows across AR, AP, and financial close processes
• Standardize workpapers, documentation practices, and reporting methodologies
• Improve process clarity so procedures can be easily understood and replicated
• Create clear documentation, instructions, and legends for financial workpapers and operational reports
• Identify opportunities to streamline processes and reduce manual inefficiencies
• Financial Oversight & Accounting Quality
• Review financial close processes and identify improvements to increase accuracy and efficiency
• Support month-end close timelines and ensure proper documentation and reconciliation standards
• Evaluate accounting estimates and accrual processes to ensure reasonable financial accuracy
• Ensure financial outputs (P&L, balance sheet, cash flow) reflect operational reality
• Cross-Functional Collaboration
• Work closely with accounting, AR, AP, and finance teams to implement improved processes
• Partner with leadership to support operational growth and system scalability
• Provide guidance and training to accounting staff on improved procedures and controls
• Help foster a culture of continuous improvement and operational transparency
• Future Leadership (Controller Path)
• Develop deep understanding of current accounting operations and systems
• Support financial leadership in building a scalable accounting infrastructure
• Potentially transition into Controller responsibilities as the organization evolves

Requirements:
• Bachelor’s degree in Accounting, Finance, or related field

• Strong knowledge of US GAAP
• Experience with internal controls, audit readiness, or compliance frameworks
• Background in public accounting (Big4 or similar) or highly structured accounting environments preferred
• Strong analytical and critical thinking skills
• Experience evaluating and improving financial processes
• Ability to document workflows and create operational playbooks
• Excellent communication skills and ability to work across teams
• Preferred Qualifications
• CPA or CPA-track preferred
• Experience with SOC compliance, internal audit, or financial controls frameworks
• Experience supporting fast-growing organizations or operational transformations
• Experience with accounting systems such as Sage Intacct or similar ERP systems
• Exposure to financial process automation or system integrations
• Key Traits
• Process-oriented and highly organized
• Comfortable challenging existing processes and proposing improvements
• Strong communicator able to work with teams resistant to change
• Strategic thinker with operational mindset
• Hands-on and comfortable working both strategically and tactically

Expected Impact

Within the first 90 days, the successful candidate will:

• Assess current accounting workflows and documentation
• Identify key control gaps and improvement opportunities
• Begin building a structured internal controls framework
• Document critical accounting processes and procedures
• Support the organization in building a scalable financial infrastructure

Benefits:
• 🎄 Christmas Bonus: 30 days, to be paid in December.
• 🩺 Major Medical Expense Insurance: Coverage up to $20,000,000.00 MXN.
• 🩹 Minor Medical Insurance: VRIM membership with special discounts on doctor’s appointments and accident reimbursements.
• 😁 Dental Insurance: Always smile with confidence!
• 💼 Life Insurance
• 🌴 Vacation Days: 12 vacation days.
• + 📅 Floating Holidays: 3
• 📱 Cell Phone Reimbursement & Transportation Subsidy.
• 🌐 Hybrid Scheme: Enjoy the best of both worlds, remote and in-office work.
• 🌍 Multicultural Exposure: Work with operations within Mexico and the United States.
• 🎉 MezTal Internal Events: Strike a healthy balance between your professional and personal goals.
• 💸 Exclusive Discounts: Benefits with different companies for being part of MezTal.
• 📚 Academic Agreements: Access to national universities and language schools.
• 🚀 Career Growth: We will search for the best conditions for progressing in your career.