Job DescriptionThe International School of Curitiba (ISC) is seeking an accomplished and principled Controller to join our Finance & Operations team. Reporting directly to the Director of Finance & Operations, the Controller will lead the Accounting and Treasury functions and play a key role in ensuring the accuracy, integrity, and reliability of the school's financial information.
This role is responsible for strengthening financial governance, maintaining effective internal controls, ensuring compliance with Brazilian accounting and tax requirements, and providing accurate financial reporting and analysis to support strategic decision-making. The Controller will work closely with leadership, departments across the school, auditors, suppliers, and external partners to improve financial processes, strengthen operational efficiency, and ensure the responsible management of ISC's financial resources.
As a member of the ISC community, the Controller is expected to combine strong technical expertise with integrity, collaboration, sound judgment, and a commitment to continuous improvement. The successful candidate will contribute not only to the financial sustainability of the school, but also to a culture of accountability, belonging, and Teaching for the Future.

• Lead and oversee the Accounting and Treasury teams, providing clear direction, support, accountability, and opportunities for professional development.
• Oversee accounting, tax compliance, treasury, accounts payable, and accounts receivable operations, ensuring accuracy, compliance, and timely completion of monthly and annual financial closings.
• Ensure the integrity, accuracy, and reliability of financial records, reports, and supporting documentation.
• Maintain compliance with applicable Brazilian accounting standards, tax legislation, statutory requirements, and other relevant regulations.
• Establish, implement, monitor, and continuously improve financial policies, procedures, and internal controls.
• Ensure appropriate segregation of duties, risk management practices, and control mechanisms across financial processes.
• Supervise and independently review the work of the Accounting and Treasury teams, including payment processing, bank reconciliations, accounting reconciliations, and other key financial controls.
• Authorize and release payments within delegated approval limits, ensuring compliance with established procedures and appropriate validation of supplier banking information.
• Ensure proper three-way matching between purchase orders, proof of receipt, and invoices.
• Coordinate the annual school-wide budgeting process in partnership with the Director of Finance & Operations and budget owners, consolidating operating and capital expenditure budgets.
• Monitor financial performance against approved budgets, analyze variances, identify risks and opportunities, and provide timely recommendations to leadership.
• Prepare and present financial reports, analyses, forecasts, and recommendations for executive management, the Finance Committee, and the Board.
• Oversee cash flow planning, liquidity management, investments, and banking relationships, ensuring the effective and responsible use of financial resources.
• Serve as the primary point of contact for internal and external audits, coordinating documentation, responses, follow-up, and implementation of audit recommendations.
• Monitor changes in accounting standards, tax legislation, regulatory requirements, and financial management practices, assessing their potential impact on ISC.
• Partner with Purchasing and other departments to strengthen financial processes, improve operational efficiency, and promote shared accountability.
• Build strong and respectful relationships with internal stakeholders, suppliers, auditors, financial institutions, and external partners.
• Translate complex financial information into clear insights and actionable recommendations for non-financial stakeholders.
• Identify opportunities to improve systems, processes, controls, and financial reporting through data-informed analysis and continuous improvement.
• Contribute positively to the wider ISC community and support organizational initiatives aligned with the school's mission and values.
• Promote a safe, inclusive, respectful, and collaborative workplace where colleagues feel valued, supported, and accountable.
• Model ISC's Modern Learning competencies of Character, Citizenship, Collaboration, Communication, Creativity, and Critical Thinking in daily professional practice.

• Bachelor's degree in Accounting, Finance, Business Administration, or a related field.
• Significant professional experience in accounting, controllership, financial management, treasury, or a related area.
• Proven experience leading, supervising, and developing accounting or finance teams.
• Strong knowledge of Brazilian accounting standards, tax regulations, statutory requirements, and financial compliance.
• Demonstrated experience with financial reporting, monthly and annual closings, reconciliations, budgeting, cash flow management, and financial analysis.
• Experience establishing, implementing, and monitoring internal controls, policies, and financial procedures.
• Experience working with internal and external auditors and coordinating audit processes.
• Strong analytical and critical-thinking skills, with the ability to interpret financial data and translate it into clear recommendations.
• Strong organizational and time-management skills, with the ability to prioritize competing demands and meet deadlines.
• Excellent attention to detail combined with the ability to maintain a strategic, organization-wide perspective.
• Advanced English proficiency, with the ability to communicate confidently and effectively in a multicultural and international environment.
• Strong interpersonal and communication skills, with the ability to build trusting relationships across different levels and areas of the organization.
• High level of integrity, accountability, confidentiality, professional ethics, and sound judgment.
• Commitment to diversity, inclusion, collaboration, continuous learning, and continuous improvement.

Preferred Qualifications

The International School of Curitiba (ISC) is a non-profit international school and a diverse, multicultural community where people come together to learn, grow, and make a meaningful impact.
At ISC, we believe that our people are at the heart of our community. We strive to create an environment where everyone feels welcomed, valued, and supported, while having opportunities to grow both personally and professionally. Collaboration, meaningful relationships, continuous learning, and a genuine sense of belonging are an important part of the experience of working at ISC.
We are inspired by Patrick Lencioni’s Ideal Team Player and value people who are humble, hungry, and people smart, individuals who care about others, take ownership, embrace challenges, and are eager to contribute to a strong and collaborative community.
Our vision, Teaching for the Future, and our mission, Everyone Learning Everywhere, reflect our commitment to continuous growth and learning. They shape not only what we do, but how we work together: with curiosity, purpose, openness, and a belief that there is always something new to learn and someone from whom we can learn.
Working at ISC means being part of a community that cares about people, values different perspectives, and grows together.