Tech Lead .NET Specialist, Brazil

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.

#LI-AM5

Our benefits:

-Health and dental insurance
-Meal and food allowance
-Childcare assistance
-Extended paternity leave
-Partnership with gyms and health and wellness professionals via Wellhub (Gympass) TotalPass;
-Profit Sharing and Results Participation (PLR);
-Life insurance
-Continuous learning platform (CI&T University);
-Discount club
-Free online platform dedicated to physical, mental, and overall well-being
-Pregnancy and responsible parenting course
-Partnerships with online learning platforms
-Language learning platform
And many more!

More details about our benefits here: https://ciandt.com/br/pt-br/carreiras

At CI&T, inclusion starts at the first contact. If you are a person with a disability, it is important to present your assessment during the selection process. See which data needs to be included in the report by clicking here.This way, we can ensure the support and accommodations that you deserve. If you do not yet have the assessment, don't worry: we can support you in obtaining it.

We have a dedicated Health and Well-being team, inclusion specialists, and affinity groups who will be with you at every stage. Count on us to make this journey side by side.