Leadership Overview
Appian has 5 executives leading key functions including strategy, marketing, operations, finance, and human resources.
Focused on delivering AI-powered automation for mission-critical work, Appian accelerates digital transformation for large enterprises and government organizations through a platform built for reliability, scalability, and secure process optimization.
Focused on delivering AI-powered automation for mission-critical work, Appian accelerates digital transformation for large enterprises and government organizations through a platform built for reliability, scalability, and secure process optimization.
Leadership Roles at Appian
Matt Calkins - Founder, Chief Executive Officer & Chairman of the Board
Matt Calkins, the Founder, Chief Executive Officer & Chairman of the Board at Appian, directs the overarching vision and strategic trajectory of the organization. By prioritizing AI-powered automation, the Chief Executive Officer & Chairman of the Board ensures the platform remains the premier choice for enterprises seeking to streamline complex business processes. This leadership role involves constant engagement with the Board to maintain high standards of corporate governance and long-term value creation. Overseeing global market expansion, Matt Calkins drives the adoption of intelligent solutions that simplify operations across diverse industries. The Founder, Chief Executive Officer & Chairman of the Board maintains a focus on innovation, ensuring the technology stack supports consistent business outcomes. Through rigorous oversight of product development and market positioning, the Chief Executive Officer & Chairman of the Board secures the competitive advantage of the company in the global software landscape.

Serge Tanjga - Chief Financial Officer
Serge Tanjga, the Chief Financial Officer at Appian, manages the financial health and capital allocation strategies that support the growth of the enterprise. By overseeing fiscal planning and reporting, the Chief Financial Officer ensures the company maintains the resources necessary to advance AI-powered automation and secure, scalable software solutions. This role involves rigorous analysis of market performance and investment opportunities to drive long-term value. Serge Tanjga directs the financial operations that underpin the digital transformation services provided to government and enterprise clients. By collaborating with the Board and executive leadership, the Chief Financial Officer aligns financial goals with the broader mission of simplifying complex business processes. The Chief Financial Officer maintains a focus on transparency and compliance, ensuring that all fiscal activities support the stability and reliability of the platform. Through strategic financial management, the Chief Financial Officer secures the foundation for future innovation.
David Crozier - Chief Marketing Officer
David Crozier, the Chief Marketing Officer at Appian, architects the global brand strategy and demand generation initiatives that fuel market penetration. By articulating the value of AI-powered automation, the Chief Marketing Officer ensures that large enterprises and government organizations recognize the platform as the standard for mission-critical work. This role involves managing complex marketing funnels and digital campaigns that highlight the reliability and scalability of the software. David Crozier drives cross-functional collaboration with sales teams to align messaging with revenue targets across North American and international markets. By analyzing market trends and customer feedback, the Chief Marketing Officer refines the narrative to support digital transformation efforts. The Chief Marketing Officer maintains a focus on brand equity, ensuring that all communications reflect the commitment to secure, intelligent solutions that simplify operations and enhance decision-making for every client.

Alexandra Monks - Chief of Staff
Alexandra Monks, the Chief of Staff at Appian, coordinates executive operations and facilitates the execution of strategic priorities across the organization. By managing the flow of information between the C-suite and various departments, the Chief of Staff ensures alignment with the mission of providing AI-powered automation for mission-critical work. This role involves optimizing internal processes to improve efficiency and support the rapid scaling of business operations. Alexandra Monks drives the implementation of key initiatives that enhance decision-making and organizational agility. By overseeing high-priority projects, the Chief of Staff supports the leadership team in achieving consistent business outcomes. The Chief of Staff maintains a focus on operational excellence, ensuring that resources are allocated effectively to support digital transformation. Through constant monitoring of organizational performance, the Chief of Staff secures the operational stability required to maintain the market position of the company.
Susan Charnaux - Chief People Officer
Susan Charnaux, the Chief People Officer at Appian, directs the human capital strategy and talent development programs that sustain the workforce. By fostering a culture of innovation and excellence, the Chief People Officer ensures the company attracts the expertise required to build AI-powered automation for mission-critical work. This role involves designing programs that support employee engagement, professional growth, and organizational diversity. Susan Charnaux drives initiatives that align the workforce with the mission of accelerating digital transformation for large enterprises. By overseeing talent acquisition and retention, the Chief People Officer ensures that the organization maintains the technical and operational capacity to deliver reliable, secure solutions. The Chief People Officer maintains a focus on building a high-performance environment, ensuring that every team member contributes to the consistent business outcomes expected by clients. Through strategic workforce planning, the Chief People Officer secures the human potential necessary for long-term success.

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