Job Summary: At Itaú Unibanco, you'll be part of a team developing and evolving critical engines for fraud detection in financial and non-financial transactions, building scalable and resilient solutions. Key Highlights: 1. Develop and evolve microservices for decision engines. 2. Collaborate with multidisciplinary squads to deliver innovative solutions. 3. Contribute to continuous improvements in processes and tools. **About Itaú Unibanco** Itaú is Brazil's most valuable brand, the best company to work for according to Great Place to Work, and the largest bank in Latin America. We impact over 98 million customers daily across 18 countries. We are made up of people, and we believe that having a team with plural origins, cultures, beliefs, experiences, ethnicities, disabilities, genders, sexual orientations, and generations broadens perspectives and contributes to an environment of respect and appreciation for differences. Work Model \- Hybrid (8 days onsite per month \- Jabaquara/SP). **Responsibilities and Duties** You will join a Squad focused on developing and evolving critical fraud detection engines for financial and non-financial transactions. You will be responsible for building scalable and resilient solutions, ensuring security and performance. **Your Day-to-Day Will Include:** We are seeking a **MID-LEVEL SOFTWARE ENGINEERING** professional to serve as a technical reference in designing and operating solutions that send, normalize, enrich, and observe transactions for the SaaS engine—ensuring low latency, high reliability, and data governance, accelerating pipeline migration and operational sustainability (Build \& Run). **YOUR MISSION WILL BE** * Develop and evolve microservices for decision engines. * Implement solutions focused on observability (full autonomy for metrics, support for logs and infrastructure). * Create custom metrics using Datadog. * Support layered data construction (SOR, SOT, Spec). * Participate in architecture design and evolution, with reading and comprehension capability. * Collaborate with multidisciplinary squads to deliver innovative solutions. * Work with SaaS integrations and AWS Cloud environments (intermediate level, with support). Contribute to continuous improvements in processes and tools. * **Requirements and Qualifications** **What You Need to Excel At:** * Backend development experience (Java or Python); * Intermediate knowledge of AWS Cloud (EC2, ECS, EKS, SQS, SNS, ELB, Route53, VPC); * Experience with microservices; Architecture reading ability. * ***PREFERRED QUALIFICATIONS*** * Knowledge of distributed architecture and high availability. * Experience in agile environments and data\-driven culture. * Experience with Python Lambda for serverless functions. Experience with Datadog for creating custom metrics. * **Additional Information** **As an Ituber, You’ll Enjoy:** * Transportation Allowance * Meal Voucher (Restaurants) / Food Allowance (Supermarkets) * Health Plan (Itaú Health Foundation **or** Central Nacional Unimed) * Dental Plan (Odontoprev **or** Interodonto) * Life Insurance * PLR – Profit and Results Sharing (subject to the bank’s performance) * Private Pension * Exclusive discounts on our financial products * Extended maternity and paternity leave * Daycare / Babysitter Assistance (for moms and dads) * Study Incentives * Wellhub or TotalPass * Access to Itaú Leisure Clubs (Guarapiranga / Itanhaém and São Sebastião) * \+ Additional benefits you may learn about during the process Learn more about our culture: https://www.itau.com.br/relacoes\-com\-investidores/noticias/cultura\-itubers\-e\-nosso\-novo\-conjunto\-de\-valores/ * We encourage applications from people with disabilities for all positions; therefore, feel free to apply to roles marked as exclusive or non-exclusive for people with disabilities. We are committed to inclusion and value diversity. **\#JoinItaú \#BeAnItuber** We are Brazil’s **largest private bank** by market value and the **most valuable brand in Brazil**, valued at **R$ 46.9 billion**, according to the 2024 Interbrand ranking. We are also the company that most **develops careers in Brazil**, according to LinkedIn Top Companies for seven consecutive years, and have received the award for **Best Internship Programs 2024** by CIEE. With the country’s broadest product portfolio in the sector—and through our brands and commercial partnerships—we offer a wide range of career opportunities across diverse specialization areas, all driven by a powerful purpose: **delighting our customers by delivering exactly what they need, when they need it!** Today, we have a team of over 90,000 employees (the “itubers”) spread across Brazil and abroad, present in 18 countries.