Software Architect – .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.

Software Architect – .NET

We’re looking for a hands-on Software Architect to own the architecture of a .NET-based product line that spans multiple systems.

Responsibilities

• Define and evolve the architecture for a suite of .NET Core services and web apps (.NET Core, SQL/Postgres, Cognito, Docker, AWS).
• Align and integrate frontends built with React, Angular, and Vue with .NET Core backends and external services (Mailgun, Strapi/Node, APIs).
• Ensure scalability, security, and reliability across distributed systems and messaging/async processing (e.g., SQS).
• Lead modernization (framework upgrades, cloud-native patterns, modularization) and CI/CD practices.
• Work closely with product and business stakeholders to translate needs into simple, maintainable solutions and identify opportunities for AI/ML and automation.
• Engage with complex and demanding clients, effectively managing expectations, navigating ambiguity, and negotiating technical trade-offs to reach pragmatic, win–win solutions.

Requirements

• 7+ years in software development, with strong .NET Core / C# and web architecture experience.
• Solid background in distributed systems, authN/authZ (OAuth2/OIDC, JWT, Cognito), and relational databases (MySQL, PostgreSQL, SQL Server).
• Experience with at least one major frontend framework (React, Angular, or Vue) and cloud (AWS).
• Strong Git/CI/CD and automated testing experience.
• Excellent communication in English and proven ability to collaborate with non-technical stakeholders.
• Demonstrated ability to build trust, handle complex client relationships, and negotiate priorities and scope in high-stakes environments.

Nice-to-Haves

• Experience with PHP, Java, or Python in polyglot environments.
• Knowledge of Node/Strapi, containers, IaC, and observability tooling.
• Practical exposure to AI/ML or data-driven product features. \n

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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!

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.