With over three decades of cross-industry experience across Brazil and the United States, my career is built on a foundation of excellence, innovation, and strategic adaptability. Holding a strong academic background in business administration, finance, and accounting, I have translated complex theory into practical solutions in high-security environments, consulting, and entrepreneurial leadership.
As a Master Security Training Instructor and Transportation Security Officer (MSTI-TSO) at Seattle International Airport—following service at Snohomish County Airport—I lead comprehensive training and operational readiness initiatives. I mentor Assistant Training Instructors (ATIs), design and deliver high-impact training programs, and reinforce TSA standards through coaching, assessment, and strategic instruction. My dual-role capabilities ensure 360-degree proficiency in checkpoint and checked baggage operations, enabling maximum versatility and operational resilience.
My leadership approach emphasizes collaboration, continuous learning, and inclusivity. Whether optimizing threat detection procedures, executing emergency deployment missions, or shaping organizational culture, I remain committed to mission success and team empowerment. As a certified Network Information Officer (NIO), I advance intelligence dissemination and crisis communication, while my deployment with the Transportation Security Support Team (TSST) includes high-profile assignments like the 2025 Presidential Inauguration.
As a Passenger Support Specialist (PSS), I champion inclusive screening practices that uphold dignity and civil rights for travelers with special needs, contributing to a positive public image and trust in TSA operations. My role as founder of AskMarcio.com reflects a parallel commitment to accessible education, mentorship, and innovation through AI, cybersecurity, and tech enablement.
In addition to my public service, I lead AskMarcio.com and Serafim Dpaulla Consultancy, two platforms dedicated to empowering professionals and organizations through personalized consulting, digital transformation, and leadership development. As CEO and Principal Consultant, I have advised clients across the U.S. and Latin America on strategic planning, operational efficiency, business structuring, and technology integration—bridging gaps between innovation, compliance, and market execution.
My background in finance, accounting, and administrative sciences allows me to translate complex data into actionable insights, supporting clients in diverse sectors including retail, education, aviation services, and nonprofit operations. I have led multi-phase transformations that included budget optimization, CRM implementation, and cross-functional training programs tailored for executive teams, small business owners, and emerging leaders.
My commitment to education and lifelong learning is exemplified by my work as a Lead Professor in Career Technical Education (CTE), where I designed curriculum in business administration, communication technologies, and digital tools for adult learners and career-changers. I championed learner-centered methodologies, integrated AI-assisted platforms for virtual learning environments, and mentored both students and faculty toward credentialed advancement and workplace success.
Fluent in Portuguese, Spanish, and English, I leverage my multicultural fluency and international work experience to foster inclusive client relationships, bridge cultural barriers, and strengthen global networks. My multilingual capabilities have been especially critical in international negotiations, culturally adaptive curriculum design, and multicultural team leadership.
Driven by a strong belief in ethical innovation and inclusive leadership, I continue to explore the evolving intersections between cybersecurity, artificial intelligence, business intelligence, and human development. Whether delivering frontline security, consulting for a startup, or designing transformative educational programs, I remain dedicated to creating resilient systems, inclusive opportunities, and sustainable impact.
Professional Training & Certifications:
My professional journey is complemented by a rigorous commitment to continuous learning and development. This is evidenced by a series of certifications and training programs that span various critical disciplines, including homeland security, advanced technology, and financial management. Each certification not only represents a milestone in my professional development but also enhances my ability to contribute effectively to my fields of expertise.
Homeland Security and Public Safety:
Professional Affiliations:
My professional journey is enriched and guided by active memberships in esteemed organizations that champion educational excellence, professional ethics, and continuous improvement in business and educational administration. These affiliations reflect my dedication to upholding the highest standards in my practice, contributing to the advancement of my fields, and engaging in lifelong learning and professional development.
- California Commission on Teacher Credentialing: As a member, I adhere to the rigorous standards set for educators in California, ensuring that my teaching practices and contributions as an educational leader meet and exceed the benchmarks of quality and effectiveness. This affiliation underscores my commitment to professional excellence and to fostering environments that support student achievement and educational innovation.
- Conselho Regional de Administração de São Paulo, Brasil (Regional Administration Council of São Paulo, Brazil): This affiliation connects me to the broader community of business professionals in Brazil, allowing me to stay informed on the latest trends, regulations, and best practices in business administration. It reinforces my commitment to ethical business practices and to the continuous improvement of management standards in a global context.
- WASC – Western Association of Schools and Colleges: Engaging with WASC as a volunteer and member signifies my dedication to maintaining high educational standards and contributing to the accreditation process that ensures the quality and integrity of educational institutions. This involvement allows me to participate in shaping the future of education, emphasizing a commitment to excellence, continuous improvement, and the success of learners across various stages of their educational journey.
Engagement and Impact
My affiliations with these organizations enable me to contribute to the development of policies and practices that enhance the quality of education and business administration. They provide a platform for professional growth, networking, and the exchange of ideas, allowing me to stay at the forefront of educational and business innovation. By actively participating in these communities, I not only uphold the values and standards of my professions but also advocate for progress and excellence in every endeavor.
Through these professional affiliations, I demonstrate my unwavering commitment to the highest standards of education and business administration. They are integral to my professional identity, reflecting a dedication to excellence, ethical practice, and the continuous pursuit of knowledge and improvement.
Honors & Recognitions:
Throughout my career, I’ve been fortunate to receive recognitions that reflect my commitment to excellence, leadership, and community service in the fields of security, education, and business administration. These honors are not just personal milestones but also represent my dedication to the values and goals of the organizations I serve and the communities I am part of.
- Model Officer Recognition Program – 1st & 2nd Quarter 2024: Awarded by the Transportation Security Administration (TSA), this prestigious recognition highlights my exemplary service and dedication as a Transportation Security Officer. Being honored as a Model Officer is a testament to my commitment to maintaining the highest standards of security and professionalism, contributing significantly to the safety and well-being of the traveling public.
- TSA – Individual Cash Award NRB: This cash award from the TSA acknowledges my outstanding contributions and achievements in enhancing national security measures. This recognition serves as a powerful reminder of the impact of dedication and excellence in the critical task of safeguarding our nation’s transportation systems.
- California Contra Costa Adult Education – Friend of Adult Education: This honor is particularly meaningful to me as it represents my commitment to adult education and lifelong learning. Being recognized as a Friend of Adult Education underscores my efforts to provide accessible, high-quality educational opportunities, support adult learners in achieving their goals, and advocate for the importance of adult education in community development and personal empowerment.
Reflection and Gratitude
These recognitions are not just accolades but milestones that mark a journey of dedication, hard work, and a deep commitment to making a positive impact in every role I undertake. They inspire me to continue striving for excellence, to push the boundaries of what is possible, and to remain committed to serving as a leader, educator, and advocate for security, education, and community engagement.
I am deeply honored by these recognitions and remain committed to upholding the standards of excellence they represent. I extend my sincere gratitude to my colleagues, mentors, and the communities I serve, for their support and inspiration, which have been indispensable to my achievements.
Language Proficiency:
In today’s globalized world, the ability to communicate across linguistic boundaries is more valuable than ever. My proficiency in multiple languages enhances my professional and personal interactions, enabling me to connect with a diverse range of individuals and communities.
- Portuguese (Fluent): As a native speaker of Portuguese, I possess a deep understanding of the language’s nuances and cultural contexts. My fluency allows me to engage in complex conversations, conduct business, and create educational content that resonates with Portuguese-speaking audiences. This linguistic skill enriches my professional endeavors and facilitates stronger connections within Portuguese-speaking communities.
- Spanish (Intermediate): My proficiency in Spanish enables me to communicate effectively with Spanish-speaking individuals in both professional and social settings. With an intermediate level of Spanish, I can participate in conversations, understand spoken and written Spanish, and provide support and services to Spanish-speaking clients and colleagues. This skill opens doors to new opportunities and enhances my ability to work in diverse environments.
Bridging Cultures through Language
My language skills are more than just a professional asset; they are a bridge to understanding diverse perspectives and fostering inclusive environments. Being fluent in Portuguese and proficient in Spanish allows me to appreciate the richness of different cultures, enhance my cross-cultural communication, and contribute to a more connected and understanding world.
Through my linguistic abilities, I am committed to promoting diversity, inclusion, and mutual respect in every aspect of my professional and personal life. I continuously strive to improve my language skills and cultural understanding, recognizing that language is a powerful tool for building relationships, enhancing communication, and achieving shared goals.