[Job - 31375] Senior Tech Lead .Net, Brazil

At CI&T, we help large enterprises transform the potential of AI into real business impact with AI Deployment, AI-native execution, and tech-integrated business solutions. With 30 years of experience in technological transformation, we accelerate innovation with expertise in Agentic SDLC, Application modernization, Data & AI, Martech and Business strategy. We are 8,000 CI&Ters across more than 25 countries, collaborating to build solutions with real impact. AI is already part of how we work, evolve, and innovate every day. We are looking for a Tech Lead (.NET) to guide our engineering team, driving the technical vision, architecture, and delivery of complex back-end software solutions. In this role, you will balance strategic technical leadership with hands-on guidance, working closely with a multicultural team spread across Brazil, Colombia, the UK, and the USA. All communication is conducted in English. Key Responsibilities: Technical Leadership & Architecture: Define and evolve the technical direction, architecture, and design patterns for back-end services using C#, ADO.NET, and SQL Server. API Governance: Oversee the implementation, evolution, and standardization of SOAP and REST APIs, ensuring robust versioning, security, and best practices. Quality & Reliability: Guarantee system reliability and scalability by establishing standards for testing (unit/integration), monitoring, and root-cause analysis for complex production issues. Mentorship & Team Growth: Lead code r