[Job - 31402] Tech Lead (.Net) Senior, 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 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.

• Required Skills and Qualifications:
• 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.

• Soft Skills:
• Strategic Ownership: A proactive mindset focused on driving architectural alignment and continuous engineering improvement.
• Bridge Builder: Ability to translate complex technical concepts to non-technical stakeholders and vice versa.
• Empathetic Leadership: A collaborative leader who empowers the team, fosters psychological safety, and values shared success.
• Adaptability: Comfort leading through ambiguity, shifting priorities, and evolving business requirements.

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

If you are a seasoned technical leader ready to drive architectural excellence and mentor a high-performing, diverse team, we invite you to apply and shape the future of our platforms!