[Job - 32705] Tech Lead .NET Specialist, 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.

What You Will Do

• 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 reviews, mentor senior and junior engineers, and foster a culture of engineering excellence and continuous learning.
  System Integration: Oversee the seamless integration of various legacy and modern systems, ensuring high performance and decoupling where necessary.
  DevOps & CI/CD Strategy: Drive the optimization of CI/CD workflows and automated pipelines to enhance development velocity and deployment safety.
  Cross-functional Collaboration: Partner with product managers, stakeholders, and cross-border teams to translate business requirements into scalable technical roadmaps.

What You Need to Know

• Proven Leadership: Experience acting as a Tech Lead, Team Lead, or Principal Engineer in a production environment.
  Expert .NET Ecosystem: Deep, hands-on experience with .NET Framework and .NET Core.
  Data Layer Mastery: Solid understanding of ADO.NET and SQL Server, with a proven track record in database design, optimization, and performance tuning at scale.
  Integration Expertise: Strong experience designing and maintaining SOAP and RESTful web services, including proficiency in XML serialization/deserialization.
  Architectural Acumen: Mastery of software design patterns, clean architecture, and modern distributed system design.
  Communication: Exceptional communication and stakeholders-management skills, with resilience in fast-paced, multicultural environments.
  Language: Advanced/Fluent English proficiency.

Nice to Have

• Cloud platform expertise, preferably Azure.
  Familiarity with specification-driven development and agentic approaches to software development.
  Experience leading teams within Agile/Scrum development methodologies.