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

Role overview

Summary

This role is for a Tech Lead (.NET) at CI&T, responsible for guiding the engineering team in delivering complex back-end software solutions. You will balance technical leadership with hands-on guidance while collaborating with a multicultural team across multiple countries.

Qualifications

  • Experience acting as a Tech Lead, Team Lead, or Principal Engineer in a production environment.
  • Deep, hands-on experience with .NET Framework and .NET Core.
  • Solid understanding of ADO.NET and SQL Server, with a proven track record in database design, optimization, and performance tuning at scale.
  • Strong experience designing and maintaining SOAP and RESTful web services.
  • Exceptional communication and stakeholders-management skills.

Responsibilities

  • Define and evolve the technical direction, architecture, and design patterns for back-end services using C#, ADO.NET, and SQL Server.
  • Oversee the implementation, evolution, and standardization of SOAP and REST APIs.
  • Guarantee system reliability and scalability by establishing standards for testing, monitoring, and root-cause analysis.
  • Lead code reviews, mentor engineers, and foster a culture of engineering excellence.

Key facts

Hard skills

Other skills

  • Technical Acumen
  • Communication
  • Mentorship

About the company

Ci&T logo

Ci&T

  • IT Services & Consulting
  • 5,001–10,000
We are your tech transformation specialists, combining human expertise with AI to create scalable solutions that help you Navigate Change. With over 6,500 CI&Ters and partnerships with more than 1,000 clients, we have a 30-year history of transformation.

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Job description

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.

#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.

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