Congratulations to the newest members of the Oracle ACE Program! In October 2025, 24 individuals from around the world were recognized for their expertise, technical contributions, and leadership within the Oracle community.
Learn more about these outstanding professionals and follow their journeys as they continue to innovate, share knowledge, and inspire others across the globe.
Interested in becoming part of the Oracle ACE Program? Become an Oracle ACE!
Meet the October 2025 Oracle ACE Associates
Ajith Kumar – India | APEX
A Solutions Architect with over 30 years of experience, Ajith specializes in implementing business management solutions for the automobile industry across India. Despite not pursuing a formal academic path in software development, his passion for technology and learning led him to become an Oracle APEX and OCI expert. For the past 7 years, Ajith has architected enterprise-grade APEX solutions that transform business processes and drive operational growth.
Arun Kumar K – India | Cloud
With 19+ years in Oracle technologies, Arun excels in managing and optimizing complex Oracle E-Business Suite environments, large-scale database migrations, and OCI cost optimization. He is committed to driving technical efficiency and security, sharing insights through his blog .
Bidhan Mandal – India | Database
An Oracle-certified DBA and cloud practitioner, Bidhan brings 17+ years of hands-on experience to enterprise database engineering, performance tuning, crisis management, and high-availability solutions. He supports large-scale Oracle deployments and banking/ERP systems, streamlining operations through automation, optimization, and continuous mentoring.
Chandrasekaran Nandagopal – India | Analytics & Bi
Chandra is a database professional with over 20 years of experience. He is dedicated to continuous learning and keeps his skills sharp in new and emerging technologies to stay relevant in today’s fast-changing landscape.
Dennis Kolpatzki – Germany | Database
Dennis is a Database Administrator at DEICHMANN SE, Europe’s largest shoe retailer. Starting in the healthcare IT sector, he developed innovative migration frameworks and currently manages enterprise Oracle environments. He’s passionate about hands-on learning and technical blogging at kolpatzki.de.
Dineshkumar Kannan Ramarao – United States | Fusion Apps
A “go-to-expert” in Oracle HCM Cloud, Dineshkumar covers the full HCM lifecycle from Core HR to Talent and Payroll. With strong technical and business acumen and degrees from University of Madras and Indira Gandhi Open University, he delivers impactful HR solutions.
Ija Vidaurri – United States | Middleware
Manager of Hyperion Essbase and Budget at Caesars Entertainment, Ija brings 10+ years of experience in Essbase and Planning, and is a Gold Crown member of Oracle Customer Connect with multiple badges for top contributions. She’s also a frequent presenter at major conferences like Kscope and Ascend.
Johni Douglas Marangon – Brazil | AI
With 17+ years of experience, Johni is a software engineer passionate about leveraging technology to solve real-world challenges. His expertise spans web, desktop, and mobile development, and he has practical experience implementing AI-powered solutions across diverse sectors.
Liang Du – China | Database
Liang is an Oracle DBA with 15 years of experience. He specializes in high availability, optimization, and troubleshooting—bringing practical solutions to complex challenges.
Luis Fabricio Da Rosa De Llamas – Brazil | Java
As a Developer Advocate at ACT Digital, Luis founded the Quarkus Club community and co-founded DevConverge LATAM, empowering Java developers across Latin America through advocacy, event organization, and technical mentorship.
Maiquel De Oliveira – Brazil | Middleware
Known as “Mike,” Maiquel is a Senior Database Consultant with 19+ years’ experience working across Oracle products. He is an expert in Fusion Middleware and GoldenGate, and an active contributor to the Oracle technical community in Brazil.
Mary Grygleski – United States | AI
Mary is a Technical Advocate, Java Champion, and Regional Director at the AI Collective. With 20+ years in engineering and technical architecture, she’s an active community leader and frequent speaker in Java, AI, open source, and emerging technologies.
Minhang Zhang – China | Database
Minhang is an Oracle database expert with over five years of hands-on experience serving healthcare, finance, government, and more. Proficient in migrations, upgrades, RAC, and DG, he ensures robust, high-performing environments for diverse clients.
Nicolas Frankel – France | Java
Nicolas is a technologist and author, focusing on cloud-native technologies, CI/CD, and observability. He engages with developer communities, delivers talks worldwide, and contributes to the JVM ecosystem via open-source, books, and blogs.
Nidhi Chaturvedi – India | APEX
An Oracle APEX Developer at TI Infotech with a B.E. in Computer Science, Nidhi is passionate about sharing knowledge and helping the community grow through technical sharing and real-world problem solving.
Ramachandra Handaragal – United States | Cloud
A Senior Manager at Peloton Consulting Group, Ramachandra is a global digital transformation leader with 19+ years of experience architecting supply chain ERP solutions and now leading AI-driven supply chain initiatives.
Razi Saif – United Arab Emirates | Database
Razi is an Oracle Database Administrator with 10+ years’ experience in RAC, Data Guard, performance tuning, and cloud migrations. An OCP, he contributes to the Oracle community through knowledge sharing and training.
Renato Nobrega – Brazil | Community
Renato is the founder of Brazil JUG Devs Java Community, dedicated to fostering collaboration, mentorship, and learning among Java professionals. He connects talents and opportunities and organizes impactful community events.
Sadia Tahseen – United States | Middleware
With 17+ years in IT, Sadia is a Senior IT Integration architect specializing in Oracle Cloud, Fusion Middleware, and databases. She’s led major integration projects for Fortune 500 clients and is an active speaker at OAUG/OATUG and IEEE conferences.
Steve Poole – United Kingdom | AI
Steve is an accomplished technical leader, developer advocate, and LJC Community Director with 30+ years’ experience. He is recognized as an international speaker on software supply chain security, DevOps, and cybercrime.
Tao Wang – China | Database
Tao is an Oracle OCM and MySQL DBA/Developer OCP with 20 years’ experience in critical database architecture for manufacturing and healthcare. He advances AI-data convergence and shares practical deployment strategies on his blog .
Thousif Syed – India | Fusion Apps
With 12 years in HCM consulting, Thousif is a recognized contributor on Oracle Customer Connect and a Spotlight Member, known for his knowledge sharing and innovation in the Oracle ecosystem.
Tiago Piontkewicz – Brazil | Database
A Senior Oracle DBA, Tiago is passionate about high availability, RAC, migrations, and technical education. He shares content and serves as an instructor to help professionals master database technologies.
Toufique Khan – India | Database
With 4+ years of experience, Toufique manages Oracle Database environments including RAC, Exadata, configuration, performance tuning, and secure architectures.
Congratulations again to all our new Oracle ACEs!
The Oracle community is stronger because of your expertise, passion, and commitment. We look forward to your continued contributions and leadership.
Learn more and connect with Oracle ACEs on the Oracle ACE Directory.