Clerton Araujo

• Architected GDPR and §75b SGB V-compliant security protocols for Germany's national telematic infrastructure (TI), serving 90M+ patients across 300,000+ healthcare providers. • Decomposed a legacy Rails monolith into independently deployable microservices, reducing release risk and increasing deployment frequency. • Led cross-functional technical scoping for 5+ product squads, translating healthcare regulatory requirements into actionable engineering roadmaps. • Drove observability adoption (Datadog, Sent

• Standardised the internal Design System, improving UI consistency and developer efficiency across multiple product teams. • Integrated a headless CMS and optimised user engagement funnels with marketing and product, driving measurable revenue growth. • Built high-performance backend services using TypeScript, Elixir and OCaml. Stack: TypeScript, React, Node.js, Python, Elixir, OCaml, PostgreSQL, Docker, AWS

• Designed and launched an award-winning e-government platform for the German public sector, with a focus on security and accessibility. • Engineered a multilingual platform (German, Arabic, Farsi, English), broadening reach to diverse user populations. • Developed secure backend services with .NET Core and managed cloud deployments on Azure. Stack: TypeScript, React, .NET Core, PostgreSQL, Azure

• Developed a mobile traffic ticketing system used by the Brazilian Police and a public service portal for Florianópolis City Hall. • Built an attorney scheduling system for the Brazilian Government using Java and Scala backend services. Stack: React, React Native, Java, Scala, Node.js, Spring, MS SQL, Couchbase, Docker

• Launched Brazil's first online insurance marketplace for Bradesco Bank and led development of a geo-tracking app delivering real-time insurance offers. Stack: Java, Spring, IBM WebSphere, MongoDB, Android, Swift

• Maintained public web applications for HSBC Brazil handling 140M+ annual visits, ensuring high availability through performance optimisation and redundancy. • Implemented a global online authentication strategy, securing online banking for millions of HSBC Brazil customers. • Integrated Java/Spring services with legacy COBOL mainframe systems, enabling modernisation without service downtime. Stack: Java, Spring, IBM WebSphere, COBOL mainframe integration

Analysis of cancer gene expression with semi- supervised algorithms to build a classifier for diagnosis and find new sub-classes of cancer. Use of Mixture Discriminant Analysis (MDA) methods to simultaneously detect sub-classes of cancer and perform classification on gene expression data sets